The document provides information about rocks from a lecture on the topic. It defines what rocks are, how they form, and the three main types of rocks: igneous, sedimentary, and metamorphic. It discusses how igneous rocks form from cooling magma, sedimentary rocks form through the lithification of sediments, and metamorphic rocks form from changes to existing rocks through heat, pressure, and fluid activity. Examples of different rock types are also provided.
This document provides information about rocks from a lecture on the topic of rocks. It defines what a rock is, discusses the three main types of rocks - igneous, sedimentary, and metamorphic - and how they form. It also describes the composition and formation of the Earth's interior layers, the components that make up rocks, and key characteristics of different rock types.
This document defines metamorphic rocks as rocks that have changed from their original form due to heat, pressure, and fluid activity. It discusses the different types of metamorphism including contact metamorphism caused by igneous intrusions, dynamic metamorphism associated with fault zones, and regional metamorphism caused by plate tectonics over large areas. Metamorphic rocks can have foliated textures with layering or non-foliated massive textures depending on the direction of pressure during metamorphism.
Rocks can change from one type to another through various geological processes. Sedimentary rocks form through the compaction and cementation of sediments like sand and clay. Metamorphic rocks form from changes to other rocks through heat and pressure in the Earth. Igneous rocks form when magma or lava cools and solidifies. Rocks continuously cycle between these three types as they are weathered, eroded, deposited, lithified, and altered by heat and pressure in an endless transformation.
The rock cycle describes how rocks change form over long periods of time through various physical processes. There are three main types of rocks - igneous, sedimentary, and metamorphic - and each can change into another through the processes of cooling, weathering and erosion, compaction and cementation, heat and pressure (metamorphism), and melting. The rock cycle begins with molten rock that cools to form igneous rock. Erosion produces sediment that is buried and compacted into sedimentary rock. Further burial and heat causes metamorphism into metamorphic rock, which at high heat and pressure can melt back into magma to restart the cycle.
This document provides information about the three main types of rocks - igneous, sedimentary, and metamorphic rocks. It explains that igneous rocks form from the cooling of magma or lava, sedimentary rocks form from the compaction and cementation of sediments, and metamorphic rocks form from the alteration of existing rocks by heat, pressure, and chemical reactions in the Earth. It also provides examples of different rock types and how they are used.
There are three main types of rocks:
1) Igneous rocks form from solidified magma either below or above the surface.
2) Sedimentary rocks form from compressed and cemented sediment.
3) Metamorphic rocks form from existing igneous or sedimentary rocks that have been altered by heat and pressure.
Minerals are natural inorganic substances that make up rocks. They form through natural geological processes within the earth's crust and do not come from living things. Minerals can be identified based on their physical properties such as hardness, color, streak, luster, and cleavage or fracture pattern. Igneous rocks form as magma or lava cools and solidifies. Sedimentary rocks form through the compaction and cementation of sediments. Metamorphic rocks form from the alteration of existing rock types subjected to heat and pressure in metamorphism.
This document provides information about rocks from a lecture on the topic of rocks. It defines what a rock is, discusses the three main types of rocks - igneous, sedimentary, and metamorphic - and how they form. It also describes the composition and formation of the Earth's interior layers, the components that make up rocks, and key characteristics of different rock types.
This document defines metamorphic rocks as rocks that have changed from their original form due to heat, pressure, and fluid activity. It discusses the different types of metamorphism including contact metamorphism caused by igneous intrusions, dynamic metamorphism associated with fault zones, and regional metamorphism caused by plate tectonics over large areas. Metamorphic rocks can have foliated textures with layering or non-foliated massive textures depending on the direction of pressure during metamorphism.
Rocks can change from one type to another through various geological processes. Sedimentary rocks form through the compaction and cementation of sediments like sand and clay. Metamorphic rocks form from changes to other rocks through heat and pressure in the Earth. Igneous rocks form when magma or lava cools and solidifies. Rocks continuously cycle between these three types as they are weathered, eroded, deposited, lithified, and altered by heat and pressure in an endless transformation.
The rock cycle describes how rocks change form over long periods of time through various physical processes. There are three main types of rocks - igneous, sedimentary, and metamorphic - and each can change into another through the processes of cooling, weathering and erosion, compaction and cementation, heat and pressure (metamorphism), and melting. The rock cycle begins with molten rock that cools to form igneous rock. Erosion produces sediment that is buried and compacted into sedimentary rock. Further burial and heat causes metamorphism into metamorphic rock, which at high heat and pressure can melt back into magma to restart the cycle.
This document provides information about the three main types of rocks - igneous, sedimentary, and metamorphic rocks. It explains that igneous rocks form from the cooling of magma or lava, sedimentary rocks form from the compaction and cementation of sediments, and metamorphic rocks form from the alteration of existing rocks by heat, pressure, and chemical reactions in the Earth. It also provides examples of different rock types and how they are used.
There are three main types of rocks:
1) Igneous rocks form from solidified magma either below or above the surface.
2) Sedimentary rocks form from compressed and cemented sediment.
3) Metamorphic rocks form from existing igneous or sedimentary rocks that have been altered by heat and pressure.
Minerals are natural inorganic substances that make up rocks. They form through natural geological processes within the earth's crust and do not come from living things. Minerals can be identified based on their physical properties such as hardness, color, streak, luster, and cleavage or fracture pattern. Igneous rocks form as magma or lava cools and solidifies. Sedimentary rocks form through the compaction and cementation of sediments. Metamorphic rocks form from the alteration of existing rock types subjected to heat and pressure in metamorphism.
- Rocks are naturally occurring mixtures of minerals, mineraloids, glass or organic matter that are divided into three main types - igneous, sedimentary, and metamorphic - based on how they were formed.
- Igneous rocks form from the cooling of magma or lava either below or above ground. Sedimentary rocks form through the compaction or cementation of sediments. Metamorphic rocks form from changes to existing rocks through heat, pressure, and chemical reactions in the Earth.
- Rocks are constantly changing between these three types through the rock cycle as they are weathered, eroded, melted, cooled, and subjected to pressure and heat within the Earth.
The document discusses the three main types of rocks: igneous, sedimentary, and metamorphic. It explains that the rock cycle describes how rocks can change between these types depending on conditions. Igneous rocks form from cooling magma, either deep underground forming intrusive igneous rocks or at the surface during volcanic eruptions forming extrusive igneous rocks. Sedimentary rocks form through weathering, erosion, deposition and cementation of sediments. Metamorphic rocks form from existing rocks undergoing heat and pressure, causing them to change form.
This document discusses metamorphism and metamorphic rocks. It defines metamorphism as a change in shape of pre-existing rocks due to heat and pressure below the surface. It describes different types of metamorphism including contact, dynamic, and regional metamorphism. It also defines foliated and non-foliated metamorphic rocks, providing examples like slate, schist, and gneiss. The document aims to explain metamorphic concepts and rock types to students.
Metamorphic rocks process of formation 2014aalleyne
This document discusses how metamorphic rocks are formed and classified. Metamorphic rocks form deep underground through heat and pressure changing existing rocks. They are classified based on their texture into either foliated rocks, which have layers or bands, or non-foliated rocks, which lack layers or bands. Common foliated metamorphic rocks include slate, phyllite, schist and gneiss, while common non-foliated rocks include quartzite and marble.
Rocks undergo changes through various natural processes. Sedimentary rock is formed through the compression of sediment layers, metamorphic rock is formed from changes caused by heat and pressure to other rock types, and igneous rock is formed by the cooling and hardening of melted rock. Rocks break down through weathering and erosion over time and the fragments can form new types of rock in a continuous cycle. Fossils preserved in sedimentary rock provide evidence of past life and the age of the earth.
This document defines rocks and describes the three main types of rocks: igneous, sedimentary, and metamorphic. Igneous rocks form from the cooling of magma or lava. Sedimentary rocks form through the compaction or cementation of sediments. Metamorphic rocks form from existing rocks undergoing changes due to heat and pressure in the Earth. Rocks can change between these types through geological processes in the rock cycle.
Rocks continuously change forms through the rock cycle. There are three main types of rocks: igneous, sedimentary, and metamorphic. Igneous rocks form from cooling magma, sedimentary rocks form from compressed and cemented sediments, and metamorphic rocks form from existing rocks undergoing heat and pressure. Plate tectonics and the rock cycle drive the recycling of Earth's rocks as they change forms over millions of years.
The document discusses the rock cycle and how rocks are formed. It explains that igneous rocks form from the cooling of magma, either underground to form intrusive rocks or above ground to form extrusive rocks. Sedimentary rocks form from the weathering, erosion, deposition and compaction of other rocks. Metamorphic rocks form from the alteration of existing rocks through heat and pressure in the Earth's crust. The rock cycle involves the interconversion of these three main types of rocks through various geological processes.
This document defines and describes the three main types of rocks: igneous, sedimentary, and metamorphic. Igneous rocks form from the cooling of magma or lava. Sedimentary rocks form through the compaction or cementation of sediments. Metamorphic rocks form from existing rocks undergoing changes due to heat and pressure in the Earth. Rocks can change between these types through geological processes in the rock cycle.
Minerals are found in rocks and there are over 3000 known types of minerals. Minerals have different properties like color, hardness, streak, and luster that can be used to identify them. There are three main types of rocks: igneous rocks which form from cooling magma or lava, sedimentary rocks which form from compressed and cemented sediment, and metamorphic rocks which form from other rocks being subjected to heat and pressure below the earth's surface. Common rocks like granite, shale, and marble are used for construction materials, building monuments, and other purposes due to their unique properties.
The document discusses the three main types of rocks - igneous, sedimentary, and metamorphic - and the rock cycle by which rocks are formed and changed over time. It explains that igneous rocks form from cooling magma, sedimentary rocks form through compaction or cementation of sediments, and metamorphic rocks form from extreme heat and pressure changing existing rock types. The rock cycle involves the continuous transformation of rocks between these types through geological forces and processes.
This document discusses the three main types of rocks - igneous, sedimentary, and metamorphic - and the rock cycle. It explains that igneous rocks form from cooling magma, sedimentary rocks form through compaction or cementation of sediments, and metamorphic rocks form from extreme heat and pressure changing existing rocks. The rock cycle is also summarized, noting that geological forces cause rocks to change forms over time, passing through the different types.
This document provides an overview of petrology, which is the study of rocks. It defines different types of rocks, including igneous, sedimentary, and metamorphic rocks. Igneous rocks form from the cooling of magma, sedimentary rocks form through the compaction and cementation of sediments, and metamorphic rocks form through changes to pre-existing rocks due to heat, pressure, and fluids. The document also discusses various rock properties like texture, composition, and uses examples to illustrate different rock types.
Rocks are naturally occurring mixtures of minerals, mineraloids, or organic matter that are divided into three main types - igneous, sedimentary, and metamorphic - based on their formation process. Rocks are continually changed over time through the rock cycle as they are weathered, eroded, melted, cooled, cemented, and subjected to heat and pressure, allowing them to transition between the three rock types. The composition and origins of rocks, such as whether they formed from magma, sediments, or changed forms due to heat and pressure, are used to classify the different types of rocks.
This document discusses the three main rock types: igneous, sedimentary, and metamorphic. It provides details about how each type of rock is formed. Igneous rocks form from the cooling of magma either underground as intrusive rocks or above ground as extrusive rocks from volcanoes. Sedimentary rocks form through the accumulation and compression of eroded sediments over millions of years. Metamorphic rocks were once igneous or sedimentary rocks that were transformed by heat, pressure, and chemical processes deep underground into new rock types.
There are three main types of rocks: igneous, sedimentary, and metamorphic. Igneous rocks form from the cooling and solidification of magma either below or above the ground. Sedimentary rocks form from the compression of sediments and organic materials. Metamorphic rocks form from the alteration of existing igneous and sedimentary rocks through heat, pressure, and chemical changes. Rocks continuously change between these forms through the rock cycle as they are weathered, buried deep underground, and altered by melting.
The document provides information about the three main types of rocks: igneous, sedimentary, and metamorphic. It explains that igneous rocks form from magma and contain crystals. Sedimentary rocks form from layers of sediment cemented together over time and can contain fossils. Metamorphic rocks form from existing rocks undergoing heat and pressure, changing their structure and forming new layers. The document also discusses the rock cycle and how rocks continuously change forms through geological processes.
This document provides information about minerals, rocks, and the rock cycle from a student presentation. It defines minerals as naturally occurring crystalline solids with definite chemical compositions. It describes the three main rock types - igneous, sedimentary, and metamorphic - and their characteristic formation processes involving cooling of magma, lithification of sediments, and alteration of existing rocks by heat, pressure, and fluids respectively. The document also outlines several key mineral and rock properties including color, luster, hardness, cleavage, and textures that are important for identification and classification.
Metamorphic rocks are formed from the alteration of pre-existing rocks, such as igneous or sedimentary rocks, under high pressures and temperatures within the Earth. There are three main types of metamorphism - contact, regional, and cataclastic - which result in different textures and mineral compositions in the metamorphic rocks. Metamorphic rocks can be classified based on their textures as either foliated, containing aligned platy minerals, or non-foliated, and by their mineral composition. Common metamorphic rocks include slate, phyllite, schist, gneiss, marble, quartzite, and amphibolite.
This document discusses metamorphism and metamorphic rocks. Metamorphic rocks form from existing igneous, sedimentary, or other metamorphic rocks through heat, pressure, and chemically reactive fluids. Metamorphism progresses incrementally and involves the growth of new minerals and deformation of existing ones. Metamorphism occurs in various settings like contact, regional, and burial metamorphism. Factors like heat, pressure, and fluids drive changes in mineralogy and texture. Metamorphic grade is indicated by index minerals and results in foliated and non-foliated rock types.
This document discusses methods for calculating areas and volumes in surveying, including the trapezoidal rule and Simpson's rule. It provides examples of using these rules to calculate the area between an irregular boundary line and a chain line using offsets taken at regular intervals. It also discusses calculating volumes using prismoidal and trapezoidal rules, providing an example of calculating the cost of earth work for constructing a farm pond based on its dimensions.
The document discusses technical aspects of project management. It provides an example of a housing project with specifications including building 3 bedroom homes for 50 families within 3 years. It then discusses key project elements like stakeholders, life cycle, work breakdown structure, Gantt charts, critical path analysis, and PERT/CPM techniques. Project management concepts like activities, events, precedence, floats, critical paths, and time estimates are explained with examples.
- Rocks are naturally occurring mixtures of minerals, mineraloids, glass or organic matter that are divided into three main types - igneous, sedimentary, and metamorphic - based on how they were formed.
- Igneous rocks form from the cooling of magma or lava either below or above ground. Sedimentary rocks form through the compaction or cementation of sediments. Metamorphic rocks form from changes to existing rocks through heat, pressure, and chemical reactions in the Earth.
- Rocks are constantly changing between these three types through the rock cycle as they are weathered, eroded, melted, cooled, and subjected to pressure and heat within the Earth.
The document discusses the three main types of rocks: igneous, sedimentary, and metamorphic. It explains that the rock cycle describes how rocks can change between these types depending on conditions. Igneous rocks form from cooling magma, either deep underground forming intrusive igneous rocks or at the surface during volcanic eruptions forming extrusive igneous rocks. Sedimentary rocks form through weathering, erosion, deposition and cementation of sediments. Metamorphic rocks form from existing rocks undergoing heat and pressure, causing them to change form.
This document discusses metamorphism and metamorphic rocks. It defines metamorphism as a change in shape of pre-existing rocks due to heat and pressure below the surface. It describes different types of metamorphism including contact, dynamic, and regional metamorphism. It also defines foliated and non-foliated metamorphic rocks, providing examples like slate, schist, and gneiss. The document aims to explain metamorphic concepts and rock types to students.
Metamorphic rocks process of formation 2014aalleyne
This document discusses how metamorphic rocks are formed and classified. Metamorphic rocks form deep underground through heat and pressure changing existing rocks. They are classified based on their texture into either foliated rocks, which have layers or bands, or non-foliated rocks, which lack layers or bands. Common foliated metamorphic rocks include slate, phyllite, schist and gneiss, while common non-foliated rocks include quartzite and marble.
Rocks undergo changes through various natural processes. Sedimentary rock is formed through the compression of sediment layers, metamorphic rock is formed from changes caused by heat and pressure to other rock types, and igneous rock is formed by the cooling and hardening of melted rock. Rocks break down through weathering and erosion over time and the fragments can form new types of rock in a continuous cycle. Fossils preserved in sedimentary rock provide evidence of past life and the age of the earth.
This document defines rocks and describes the three main types of rocks: igneous, sedimentary, and metamorphic. Igneous rocks form from the cooling of magma or lava. Sedimentary rocks form through the compaction or cementation of sediments. Metamorphic rocks form from existing rocks undergoing changes due to heat and pressure in the Earth. Rocks can change between these types through geological processes in the rock cycle.
Rocks continuously change forms through the rock cycle. There are three main types of rocks: igneous, sedimentary, and metamorphic. Igneous rocks form from cooling magma, sedimentary rocks form from compressed and cemented sediments, and metamorphic rocks form from existing rocks undergoing heat and pressure. Plate tectonics and the rock cycle drive the recycling of Earth's rocks as they change forms over millions of years.
The document discusses the rock cycle and how rocks are formed. It explains that igneous rocks form from the cooling of magma, either underground to form intrusive rocks or above ground to form extrusive rocks. Sedimentary rocks form from the weathering, erosion, deposition and compaction of other rocks. Metamorphic rocks form from the alteration of existing rocks through heat and pressure in the Earth's crust. The rock cycle involves the interconversion of these three main types of rocks through various geological processes.
This document defines and describes the three main types of rocks: igneous, sedimentary, and metamorphic. Igneous rocks form from the cooling of magma or lava. Sedimentary rocks form through the compaction or cementation of sediments. Metamorphic rocks form from existing rocks undergoing changes due to heat and pressure in the Earth. Rocks can change between these types through geological processes in the rock cycle.
Minerals are found in rocks and there are over 3000 known types of minerals. Minerals have different properties like color, hardness, streak, and luster that can be used to identify them. There are three main types of rocks: igneous rocks which form from cooling magma or lava, sedimentary rocks which form from compressed and cemented sediment, and metamorphic rocks which form from other rocks being subjected to heat and pressure below the earth's surface. Common rocks like granite, shale, and marble are used for construction materials, building monuments, and other purposes due to their unique properties.
The document discusses the three main types of rocks - igneous, sedimentary, and metamorphic - and the rock cycle by which rocks are formed and changed over time. It explains that igneous rocks form from cooling magma, sedimentary rocks form through compaction or cementation of sediments, and metamorphic rocks form from extreme heat and pressure changing existing rock types. The rock cycle involves the continuous transformation of rocks between these types through geological forces and processes.
This document discusses the three main types of rocks - igneous, sedimentary, and metamorphic - and the rock cycle. It explains that igneous rocks form from cooling magma, sedimentary rocks form through compaction or cementation of sediments, and metamorphic rocks form from extreme heat and pressure changing existing rocks. The rock cycle is also summarized, noting that geological forces cause rocks to change forms over time, passing through the different types.
This document provides an overview of petrology, which is the study of rocks. It defines different types of rocks, including igneous, sedimentary, and metamorphic rocks. Igneous rocks form from the cooling of magma, sedimentary rocks form through the compaction and cementation of sediments, and metamorphic rocks form through changes to pre-existing rocks due to heat, pressure, and fluids. The document also discusses various rock properties like texture, composition, and uses examples to illustrate different rock types.
Rocks are naturally occurring mixtures of minerals, mineraloids, or organic matter that are divided into three main types - igneous, sedimentary, and metamorphic - based on their formation process. Rocks are continually changed over time through the rock cycle as they are weathered, eroded, melted, cooled, cemented, and subjected to heat and pressure, allowing them to transition between the three rock types. The composition and origins of rocks, such as whether they formed from magma, sediments, or changed forms due to heat and pressure, are used to classify the different types of rocks.
This document discusses the three main rock types: igneous, sedimentary, and metamorphic. It provides details about how each type of rock is formed. Igneous rocks form from the cooling of magma either underground as intrusive rocks or above ground as extrusive rocks from volcanoes. Sedimentary rocks form through the accumulation and compression of eroded sediments over millions of years. Metamorphic rocks were once igneous or sedimentary rocks that were transformed by heat, pressure, and chemical processes deep underground into new rock types.
There are three main types of rocks: igneous, sedimentary, and metamorphic. Igneous rocks form from the cooling and solidification of magma either below or above the ground. Sedimentary rocks form from the compression of sediments and organic materials. Metamorphic rocks form from the alteration of existing igneous and sedimentary rocks through heat, pressure, and chemical changes. Rocks continuously change between these forms through the rock cycle as they are weathered, buried deep underground, and altered by melting.
The document provides information about the three main types of rocks: igneous, sedimentary, and metamorphic. It explains that igneous rocks form from magma and contain crystals. Sedimentary rocks form from layers of sediment cemented together over time and can contain fossils. Metamorphic rocks form from existing rocks undergoing heat and pressure, changing their structure and forming new layers. The document also discusses the rock cycle and how rocks continuously change forms through geological processes.
This document provides information about minerals, rocks, and the rock cycle from a student presentation. It defines minerals as naturally occurring crystalline solids with definite chemical compositions. It describes the three main rock types - igneous, sedimentary, and metamorphic - and their characteristic formation processes involving cooling of magma, lithification of sediments, and alteration of existing rocks by heat, pressure, and fluids respectively. The document also outlines several key mineral and rock properties including color, luster, hardness, cleavage, and textures that are important for identification and classification.
Metamorphic rocks are formed from the alteration of pre-existing rocks, such as igneous or sedimentary rocks, under high pressures and temperatures within the Earth. There are three main types of metamorphism - contact, regional, and cataclastic - which result in different textures and mineral compositions in the metamorphic rocks. Metamorphic rocks can be classified based on their textures as either foliated, containing aligned platy minerals, or non-foliated, and by their mineral composition. Common metamorphic rocks include slate, phyllite, schist, gneiss, marble, quartzite, and amphibolite.
This document discusses metamorphism and metamorphic rocks. Metamorphic rocks form from existing igneous, sedimentary, or other metamorphic rocks through heat, pressure, and chemically reactive fluids. Metamorphism progresses incrementally and involves the growth of new minerals and deformation of existing ones. Metamorphism occurs in various settings like contact, regional, and burial metamorphism. Factors like heat, pressure, and fluids drive changes in mineralogy and texture. Metamorphic grade is indicated by index minerals and results in foliated and non-foliated rock types.
This document discusses methods for calculating areas and volumes in surveying, including the trapezoidal rule and Simpson's rule. It provides examples of using these rules to calculate the area between an irregular boundary line and a chain line using offsets taken at regular intervals. It also discusses calculating volumes using prismoidal and trapezoidal rules, providing an example of calculating the cost of earth work for constructing a farm pond based on its dimensions.
The document discusses technical aspects of project management. It provides an example of a housing project with specifications including building 3 bedroom homes for 50 families within 3 years. It then discusses key project elements like stakeholders, life cycle, work breakdown structure, Gantt charts, critical path analysis, and PERT/CPM techniques. Project management concepts like activities, events, precedence, floats, critical paths, and time estimates are explained with examples.
Money is a system of value that facilitates the exchange of goods and services. It functions as a medium of exchange, allowing buyers to purchase goods with money and sellers to sell goods for money. Money also serves as a unit of account and measure of value, with the worth of all goods and services expressed in monetary terms. Additionally, money acts as a standard for deferred payments, making borrowing and lending more convenient by providing a standard way to calculate and repay future interest amounts.
1. Fluid statics deals with fluids at rest and how they respond to pressure. Pressure is defined as force per unit area.
2. Pressure increases linearly with depth or height of a fluid. Deeper locations experience greater pressure due to the weight of fluid above.
3. There are three types of pressure: absolute, gauge, and vacuum/negative. Absolute pressure is measured from a complete vacuum while gauge omits atmospheric pressure.
This document provides a student guide to pile foundation design. It begins with an introduction to pile foundations, including their purpose and various classifications. Piles can be classified based on how they transmit loads, their material type, and their installation method. Common materials are timber, steel, and concrete. Piles are either driven into the ground or bored. Later chapters will cover topics like load distribution, single pile design, pile group design, installation methods, and testing. The guide is intended to simplify complex pile foundation texts for undergraduate students.
This document provides an introduction to transportation engineering and discusses various topics related to transportation including:
- The role of transportation in economic development and rural development.
- Different modes of transportation including road, rail, water, air, and others.
- Advantages and disadvantages of road transportation.
- Characteristics of road transport such as flexibility and low investment requirements.
- Concepts related to traffic such as volume, passenger car units (PCU), and flow characteristics.
This document presents an introduction to rules of inference and logical arguments. It defines an argument as a sequence of statements ending with a conclusion, and premises as the statements preceding the conclusion. Two main valid rules of inference are then described: modus ponens, where if a conditional statement and its hypothesis are true then the conclusion must be true; and modus tollens, where if a conditional statement is true and the conclusion is false, then the hypothesis must be false. Examples are provided for each. Finally, two common fallacies - affirming the conclusion and denying the hypothesis - are explained.
This document discusses environmental engineering topics related to water demand and the hydrologic cycle. It defines key terms for measuring water demand such as total annual volume, average daily rate of draft, and per capita demand. It also outlines the major processes in the hydrologic cycle, including evaporation, transpiration, condensation, precipitation, infiltration, percolation, and runoff. Finally, it briefly mentions rainwater harvesting.
There are three main methods for converting logs into boards: through and through sawing, tangential sawing, and quarter sawing. Through and through sawing cuts logs parallel to the grain, producing wide boards quickly but with potential for cupping. Tangential sawing cuts logs at an angle to the grain, producing stable boards with a flame figure but is more expensive. Quarter sawing cuts logs at a 45 degree angle to the growth rings, producing narrow boards that are very stable with an attractive grain but is the most expensive method.
The document provides 7 tips for managing development projects: 1) Establish clear goals; 2) Set expectations upfront by defining deliverables, scope, roles, and communication plans; 3) Prevent risks by planning for unexpected issues; 4) Minimize unproductive meetings; 5) Plan an effective kickoff meeting; 6) Pull regular reports to track progress; 7) Use appropriate project management tools to organize tasks, share insights, and customize plans. Following these tips will help project managers achieve their goals on time and on budget by setting clear expectations, mitigating risks, streamlining communication, and monitoring progress.
1) Lateral earth pressure is the pressure that soil exerts horizontally and is important for designing retaining structures like walls, sheet piles, and basements.
2) There are three states of lateral earth pressure: at-rest, active, and passive. At-rest pressure acts on braced walls, active on free-standing walls, and passive when a wall is pushed into the soil.
3) The coefficients of lateral earth pressure (Ko, Ka, Kp) can be calculated using equations involving the soil friction angle. Ko is used to calculate at-rest pressure, Ka for active, and Kp for passive pressure conditions.
This document provides an introduction and overview of a class on Bangladesh Studies and Government. It begins with welcoming students to the class and introducing the lecturer. It then provides definitions and concepts of government and politics. It discusses different forms of government and the main organs of government, including the legislature, executive, and judiciary. It outlines the key functions of these organs. Specifically, it details the seven main functions of the judiciary. The document also discusses concepts of democracy and the merits and demerits of democracy. It concludes by asking students to prepare an answer on the relevancy of studying this course as a civil engineering student.
Kinetic studies on malachite green dye adsorption from aqueous solutions by A...Open Access Research Paper
Water polluted by dyestuffs compounds is a global threat to health and the environment; accordingly, we prepared a green novel sorbent chemical and Physical system from an algae, chitosan and chitosan nanoparticle and impregnated with algae with chitosan nanocomposite for the sorption of Malachite green dye from water. The algae with chitosan nanocomposite by a simple method and used as a recyclable and effective adsorbent for the removal of malachite green dye from aqueous solutions. Algae, chitosan, chitosan nanoparticle and algae with chitosan nanocomposite were characterized using different physicochemical methods. The functional groups and chemical compounds found in algae, chitosan, chitosan algae, chitosan nanoparticle, and chitosan nanoparticle with algae were identified using FTIR, SEM, and TGADTA/DTG techniques. The optimal adsorption conditions, different dosages, pH and Temperature the amount of algae with chitosan nanocomposite were determined. At optimized conditions and the batch equilibrium studies more than 99% of the dye was removed. The adsorption process data matched well kinetics showed that the reaction order for dye varied with pseudo-first order and pseudo-second order. Furthermore, the maximum adsorption capacity of the algae with chitosan nanocomposite toward malachite green dye reached as high as 15.5mg/g, respectively. Finally, multiple times reusing of algae with chitosan nanocomposite and removing dye from a real wastewater has made it a promising and attractive option for further practical applications.
ENVIRONMENT~ Renewable Energy Sources and their future prospects.tiwarimanvi3129
This presentation is for us to know that how our Environment need Attention for protection of our natural resources which are depleted day by day that's why we need to take time and shift our attention to renewable energy sources instead of non-renewable sources which are better and Eco-friendly for our environment. these renewable energy sources are so helpful for our planet and for every living organism which depends on environment.
Climate Change All over the World .pptxsairaanwer024
Climate change refers to significant and lasting changes in the average weather patterns over periods ranging from decades to millions of years. It encompasses both global warming driven by human emissions of greenhouse gases and the resulting large-scale shifts in weather patterns. While climate change is a natural phenomenon, human activities, particularly since the Industrial Revolution, have accelerated its pace and intensity
Evolving Lifecycles with High Resolution Site Characterization (HRSC) and 3-D...Joshua Orris
The incorporation of a 3DCSM and completion of HRSC provided a tool for enhanced, data-driven, decisions to support a change in remediation closure strategies. Currently, an approved pilot study has been obtained to shut-down the remediation systems (ISCO, P&T) and conduct a hydraulic study under non-pumping conditions. A separate micro-biological bench scale treatability study was competed that yielded positive results for an emerging innovative technology. As a result, a field pilot study has commenced with results expected in nine-twelve months. With the results of the hydraulic study, field pilot studies and an updated risk assessment leading site monitoring optimization cost lifecycle savings upwards of $15MM towards an alternatively evolved best available technology remediation closure strategy.
Recycling and Disposal on SWM Raymond Einyu pptxRayLetai1
Increasing urbanization, rural–urban migration, rising standards of living, and rapid development associated with population growth have resulted in increased solid waste generation by industrial, domestic and other activities in Nairobi City. It has been noted in other contexts too that increasing population, changing consumption patterns, economic development, changing income, urbanization and industrialization all contribute to the increased generation of waste.
With the increasing urban population in Kenya, which is estimated to be growing at a rate higher than that of the country’s general population, waste generation and management is already a major challenge. The industrialization and urbanization process in the country, dominated by one major city – Nairobi, which has around four times the population of the next largest urban centre (Mombasa) – has witnessed an exponential increase in the generation of solid waste. It is projected that by 2030, about 50 per cent of the Kenyan population will be urban.
Aim:
A healthy, safe, secure and sustainable solid waste management system fit for a world – class city.
Improve and protect the public health of Nairobi residents and visitors.
Ecological health, diversity and productivity and maximize resource recovery through the participatory approach.
Goals:
Build awareness and capacity for source separation as essential components of sustainable waste management.
Build new environmentally sound infrastructure and systems for safe disposal of residual waste and replacing current dumpsites which should be commissioned.
Current solid waste management situation:
The status.
Solid waste generation rate is at 2240 tones / day
collection efficiently is at about 50%.
Actors i.e. city authorities, CBO’s , private firms and self-disposal
Current SWM Situation in Nairobi City:
Solid waste generation – collection – dumping
Good Practices:
• Separation – recycling – marketing.
• Open dumpsite dandora dump site through public education on source separation of waste, of which the situation can be reversed.
• Nairobi is one of the C40 cities in this respect , various actors in the solid waste management space have adopted a variety of technologies to reduce short lived climate pollutants including source separation , recycling , marketing of the recycled products.
• Through the network, it should expect to benefit from expertise of the different actors in the network in terms of applicable technologies and practices in reducing the short-lived climate pollutants.
Good practices:
Despite the dismal collection of solid waste in Nairobi city, there are practices and activities of informal actors (CBOs, CBO-SACCOs and yard shop operators) and other formal industrial actors on solid waste collection, recycling and waste reduction.
Practices and activities of these actor groups are viewed as innovations with the potential to change the way solid waste is handled.
CHALLENGES:
• Resource Allocation.
Epcon is One of the World's leading Manufacturing Companies.EpconLP
Epcon is One of the World's leading Manufacturing Companies. With over 4000 installations worldwide, EPCON has been pioneering new techniques since 1977 that have become industry standards now. Founded in 1977, Epcon has grown from a one-man operation to a global leader in developing and manufacturing innovative air pollution control technology and industrial heating equipment.
Improving the viability of probiotics by encapsulation methods for developmen...Open Access Research Paper
The popularity of functional foods among scientists and common people has been increasing day by day. Awareness and modernization make the consumer think better regarding food and nutrition. Now a day’s individual knows very well about the relation between food consumption and disease prevalence. Humans have a diversity of microbes in the gut that together form the gut microflora. Probiotics are the health-promoting live microbial cells improve host health through gut and brain connection and fighting against harmful bacteria. Bifidobacterium and Lactobacillus are the two bacterial genera which are considered to be probiotic. These good bacteria are facing challenges of viability. There are so many factors such as sensitivity to heat, pH, acidity, osmotic effect, mechanical shear, chemical components, freezing and storage time as well which affects the viability of probiotics in the dairy food matrix as well as in the gut. Multiple efforts have been done in the past and ongoing in present for these beneficial microbial population stability until their destination in the gut. One of a useful technique known as microencapsulation makes the probiotic effective in the diversified conditions and maintain these microbe’s community to the optimum level for achieving targeted benefits. Dairy products are found to be an ideal vehicle for probiotic incorporation. It has been seen that the encapsulated microbial cells show higher viability than the free cells in different processing and storage conditions as well as against bile salts in the gut. They make the food functional when incorporated, without affecting the product sensory characteristics.
Optimizing Post Remediation Groundwater Performance with Enhanced Microbiolog...Joshua Orris
Results of geophysics and pneumatic injection pilot tests during 2003 – 2007 yielded significant positive results for injection delivery design and contaminant mass treatment, resulting in permanent shut-down of an existing groundwater Pump & Treat system.
Accessible source areas were subsequently removed (2011) by soil excavation and treated with the placement of Emulsified Vegetable Oil EVO and zero-valent iron ZVI to accelerate treatment of impacted groundwater in overburden and weathered fractured bedrock. Post pilot test and post remediation groundwater monitoring has included analyses of CVOCs, organic fatty acids, dissolved gases and QuantArray® -Chlor to quantify key microorganisms (e.g., Dehalococcoides, Dehalobacter, etc.) and functional genes (e.g., vinyl chloride reductase, methane monooxygenase, etc.) to assess potential for reductive dechlorination and aerobic cometabolism of CVOCs.
In 2022, the first commercial application of MetaArray™ was performed at the site. MetaArray™ utilizes statistical analysis, such as principal component analysis and multivariate analysis to provide evidence that reductive dechlorination is active or even that it is slowing. This creates actionable data allowing users to save money by making important site management decisions earlier.
The results of the MetaArray™ analysis’ support vector machine (SVM) identified groundwater monitoring wells with a 80% confidence that were characterized as either Limited for Reductive Decholorination or had a High Reductive Reduction Dechlorination potential. The results of MetaArray™ will be used to further optimize the site’s post remediation monitoring program for monitored natural attenuation.
Presented by The Global Peatlands Assessment: Mapping, Policy, and Action at GLF Peatlands 2024 - The Global Peatlands Assessment: Mapping, Policy, and Action
2. What is a rock?
A rock is a naturally occurring aggregate minerals and/or her rock fragments
3. How do Rocks form?
• How much time does it take to form a rock?
• If you squeeze and heat a rock for a
few million years, it can turn into a
new kind of rock.
4. Continued…
• Where does the heat come from?
• When rocks are close enough to the magma to be
heated but not close enough to be melted, the
rocks can be changed.
5. Continued…
• Where does the pressure come from?
• Rocks below the surface are squeezed by the
layers of rock above them. The thicker the
layers, the more pressure there is.
6. If you were to ask a geologist
what the earth is …
What do you think the
response would be?
7. Diagram of the Interior of
the Earth
Crust
0 to 40 km
0°C
Upper Mantle
40 to 670 km
1,000°C
Lower Mantle
670 to 2,890 km
2,000°C
Outer Core
2,890 to 5,150 km
3,700°C
Inner Core
5,150 to 6,370 km
4,300°C
8. What makes up the earth?
Crust
1%
Mantle
69%
Core
30%
Crust
Mantle
Core
9. lets move to some of the
smallest components of Geology …
Now that we better understand the
largest components of Geology …
10. .
Minerals make up rocks.
Natural compounds
and elements combine
to form minerals.
Elements combine to form
the natural compounds.
Rocks make up the Earth.
There is a hierarchy to the
elements of Geology
Atoms make up elements.
11. Elements can be arranged, based on their
identifiable properties, into the Periodic Table
Atomic Theory proposes that all matter is
composed of the atoms of about 100 different
chemical elements. It further proposes that
chemical compounds are formed by the combination
of the atoms of different chemical elements.
12. Only eight elements make up over 98%
of the earth’s crust!
Mg
Na
K
O
Si
Al
Fe
Ca
13. What is the difference between
rocks and minerals?
• A mineral is a nonliving solid found in
nature.
• But, aren’t rocks nonliving and found in
nature too??
• Then what is the difference between a
rock and a mineral?
14. Rocks and Minerals
• Rocks are made up of one or more
minerals!!!
• The reason why some rocks have
more than one color, is because
they contain more than one
mineral.
• Also, some rocks are made of
other things, such as sand and
pebbles, in addition to minerals.
15. Igneous rock is formed from molten rock that has cooled
and hardened.
Sedimentary rock is formed from material that has settled
into layers and hardened.
Metamorphic rock is a rock that has changed by heat and
pressure.
What are the 3 types of Rocks?
26. is a sequence of events involving the formation, alteration,
destruction, and reformation of rocks as a result of natural
processes ...
Glossary of Geology, Bates & Jackson, AGI
RockCycle
31. Definitions
Definitions
• Metamorphic Rock
- "Meta"= Change (Grk)
- "Morph"= form (Grk)
• Metamorphic Rock
- "Meta"= Change (Grk)
- "Morph"= form (Grk)
- a rock that has been changed
from its original form ( parent ) by
heat , pressure , and fluid activity
into a new rock ( daughter ).
- a rock that has been changed
from its original form ( parent ) by
heat , pressure , and fluid activity
into a new rock ( daughter ).
Metamorphic Rocks
Metamorphic Rocks
32. Heat
Heat
• Magma
- temperature of magma
- composition of magma
• Magma
- temperature of magma
- composition of magma
• Geothermal gradient
- temperature increases with depth of burial
- core of Earth is warmer than outer crust
• Geothermal gradient
- temperature increases with depth of burial
- core of Earth is warmer than outer crust
Sources Include.....
Sources Include.....
33. Uniform Pressure
Uniform Pressure vs Directed Pressure
• Lithostatic
- "Lithos"= rock, static= unchanged (pressure)
- uniform (aka non-directed)
- equal intensity from all directions by rocks
• Lithostatic
- "Lithos"= rock, static= unchanged (pressure)
- uniform (aka non-directed)
- equal intensity from all directions by rocks
37. Types of Metamorphism
Types of Metamorphism
• Contact
- caused by igneous activity
• Dynamic
- aka cataclastic
- associated with faults & earthquake zones
• Regional
- caused by tremendous pressures
associated with tectonic plate activity
• Contact
- caused by igneous activity
• Dynamic
- aka cataclastic
- associated with faults & earthquake zones
• Regional
- caused by tremendous pressures
associated with tectonic plate activity
38. Contact Metamorphism
Contact Metamorphism
• Igneous Intrusions
- size and type of magma important
> mafic magma hotter than felsic
- heat decreases away from magma
> forms a zone of altered country rocks called Aureoles
• Igneous Intrusions
- size and type of magma important
> mafic magma hotter than felsic
- heat decreases away from magma
> forms a zone of altered country rocks called Aureoles
39. Dynamic Metamorphism
Dynamic Metamorphism
• aka Cataclastic Metamorphism
• associated with Fault Zones
- Places where the Earth's crust ruptured
- Rock pulverized
> heat and pressure come from movement along the
Fault
• resultant rock is known as a Mylonite
• aka Cataclastic Metamorphism
• associated with Fault Zones
- Places where the Earth's crust ruptured
- Rock pulverized
> heat and pressure come from movement along the
Fault
• resultant rock is known as a Mylonite
40. Regional Metamorphism
Regional Metamorphism
• Most common form of metamorphism
• caused by large scale forces
- lithospheric plate collision
• covers very large areas
- metamorphic belts or zones
- Zones are characterized by Index Minerals
> form under specific temperatures and pressures
> metamorphic facies
• commonly associated with
- shields: stable areas of crystalline rocks
• Most common form of metamorphism
• caused by large scale forces
- lithospheric plate collision
• covers very large areas
- metamorphic belts or zones
- Zones are characterized by Index Minerals
> form under specific temperatures and pressures
> metamorphic facies
• commonly associated with
-
Shields and Mountains: areas of crystalline rocks
41.
42. Metamorphic Textures
Metamorphic Textures
• Foliated
- Folios = page or leaf-like
- rock has distinct banding or layering
> often not smooth like in sedimentary rocks
- formed under directed pressure
• Non-foliated
- no distinct layering character
- often a massive crystalline texture
- formed under uniform pressures
• Foliated
- Folios = page or leaf-like
- rock has distinct banding or layering
> often not smooth like in sedimentary rocks
- formed under directed pressure
• Non-foliated
- no distinct layering character
- often a massive crystalline texture
- formed under uniform pressures
45. Foliated Textures
Foliated Textures
• Slatey
- looks like blackboard
> dull surface
- smooth, thin layering
- breaks into flat slabs
> referred to as slatey cleavage
- no mineral grains visible
• Phyllitic
- looks like waxed surface
> has a "sheen" to it
- may have little "waves" on
surface
> referred to as crenulations
- some small grains visible
• Slatey
- looks like blackboard
> dull surface
- smooth, thin layering
- breaks into flat slabs
> referred to as slatey cleavage
- no mineral grains visible
• Phyllitic
- looks like waxed surface
> has a "sheen" to it
- may have little "waves" on
surface
> referred to as crenulations
- some small grains visible
• Schistose
-
- visible grains
> garnets, staurolites
- may have shiny
> due to mica minerals
• Gneissic
- larger grains
- may look like igneous rock
- may have crude banding
> intensely distorted
- different minerals than
schistose
• Schistose
- distinct bands of minerals
- visible mineral grains
> garnets, staurolites
- may have shiny
appearance
> due to mica minerals
• Gneissic
- larger grains
- may look like igneous rock
- may have crude banding
> intensely distorted
- different minerals than
schistose
46. Foliated MM Rocks
Foliated MM Rocks
slate
slate
schist
schist gneiss
gneiss
phyllite
phyllite
MM Rocks that could form as a shale (sedimentary) parent rock is
MM Rocks that could form as a shale (sedimentary) parent rock is
exposed to increasing directed pressure and temperature
52. MAGMA
• Molten Rock
• Usually with dissolved gasses
• Generated at depth
• Eruptions if magma (lava) reaches surface
• If doesn’t reach surface, Solidifies underground
• Intrudes country or host rock
• Intrusive contact
• Xenolith- ‘foreign body’
53.
54. Igneous Rocks
• Names based on mineral composition
reflects chemical composition of the
magma and...
Grain size
• Very coarse-grained Pegmatitic
• Coarse-grained: Phaneritic > 1 mm.
• Fine-grained: Aphanitic < 1 mm.
• Porphyritic- 2 crystal sizes
61. Igneous Rock Identification
• Granite (& Rhyolite)
• High in Si + O
• Low in Fe + Mg
• Mostly feldspar & quartz
• Light-colored
• Basalt (& Gabbro)
• “Low” in Si + O
• High in Fe + Mg
• no quartz, abundant ferromagnesian minerals
• Dark colored
• Andesite (& Diorite- intermediate)
62.
63.
64.
65.
66.
67. Sedimentary Rocks
How They are Made
• Wind and water break down the earth
• Bits of earth settle in lakes and rivers
• Layers are formed and build up
• Pressure and time turn the layers to rock
1. Weathering and erosion
2. Transportation
3. Deposition
4. Consolidation and cementation
69. WEATHERING, EROSION,
TRANSPORTATION
• Weathering- Physical disintegration and chemical
decomposition of rocks
• Erosion- Physical removal
• Transportation- Movement of eroded particles
• Chemical vs. Physical Weathering
• Effects of weathering
• Surface alteration of outcrops
• Spheroidal weathering
• Differential weathering