The document discusses plate tectonics, the theory that the Earth's outer layer is made up of rigid plates that move over a softer layer below. It describes how plates are made of rigid lithosphere and move due to convection currents in the mantle. The theory helps explain geological features like mountain ranges and volcanoes. It also discusses related topics like the rock and water cycles, uniformitarianism, and the development of geology as a science over time.
The reason for the occurrence of such a huge mass of water on the globe, is still a myth and reality. The reason goes back to the Origin of Earth itself. The exact mode of origin is not precisely known. Scientists assume, both Primary and secondary sources would have given rise to all both air and water on the earth. Two possible sources as internal source (or) external source have been proposed so far. Some of them are attributed towards the theories of origin of the earth.
Plate tectonics, like crustal evolution, provides a basis for understanding the distribution and origin of mineral and energy deposits. Different types of ores are characterized by distinct geological environment and tectonic settings.
Microfossils are very small remains of organisms 0.001 mm (1 micron) to 1 mm, that require magnification for study.
They are abundant, can be recovered from small samples.
Provide the main evidence for organic evolution through the time
They classified into two groups:
Organic-walled; Acritarchs, Dinoflagellate, Spores and Pollen grains … etc.
Foraminifera Each chamber interconnected by an opening (foramen) or several openings (foramina).
Known from Early Cambrian through to recent times, and has reached its acme during the Cenozoic.
Have a wide environmental range from terrestrial to deep sea and from polar to the tropical region.
Depending on the species, the shell may be made of organic compounds, sand grains and other particles cemented together, or from crystalline calcite.
Inorganic walled; Diatoms, Silicoflagellates, Ostracods, Conodonts, and Foraminifera
Origin and Abundance of elements in the Solar system and in the Earth and its...AkshayRaut51
Definition of Elements and atom
Origin of Universe
Theories of origin of Solar system and Earth
Chemical Composition of Planets
Chemical Composition of Earth
Chemical composition of Meteorites
Abundance of Elements
The reason for the occurrence of such a huge mass of water on the globe, is still a myth and reality. The reason goes back to the Origin of Earth itself. The exact mode of origin is not precisely known. Scientists assume, both Primary and secondary sources would have given rise to all both air and water on the earth. Two possible sources as internal source (or) external source have been proposed so far. Some of them are attributed towards the theories of origin of the earth.
Plate tectonics, like crustal evolution, provides a basis for understanding the distribution and origin of mineral and energy deposits. Different types of ores are characterized by distinct geological environment and tectonic settings.
Microfossils are very small remains of organisms 0.001 mm (1 micron) to 1 mm, that require magnification for study.
They are abundant, can be recovered from small samples.
Provide the main evidence for organic evolution through the time
They classified into two groups:
Organic-walled; Acritarchs, Dinoflagellate, Spores and Pollen grains … etc.
Foraminifera Each chamber interconnected by an opening (foramen) or several openings (foramina).
Known from Early Cambrian through to recent times, and has reached its acme during the Cenozoic.
Have a wide environmental range from terrestrial to deep sea and from polar to the tropical region.
Depending on the species, the shell may be made of organic compounds, sand grains and other particles cemented together, or from crystalline calcite.
Inorganic walled; Diatoms, Silicoflagellates, Ostracods, Conodonts, and Foraminifera
Origin and Abundance of elements in the Solar system and in the Earth and its...AkshayRaut51
Definition of Elements and atom
Origin of Universe
Theories of origin of Solar system and Earth
Chemical Composition of Planets
Chemical Composition of Earth
Chemical composition of Meteorites
Abundance of Elements
Oceanography is an interesting subject. Geological oceanography deals with a lot of unique aspects of the oceans including the ocean morphology and relief, continental margins, tectonic processes acting on the ocean bottoms, marine mineral resources, and the deep sea deposits. The subject also focuses on the never ending dynamic processes like ocean waters, ocean currents and their impacts with reference to space and time. Understanding the tectonic disposition and movement of crustal plates are an important part while studying the earth and atmospheric sciences, in general and oceanography, in particular. The continental margins and the deep ocean basins are the two major aspects to be understood in this subject. This lesson is on the characteristics of continental margins.
The earth is more than 4.5 billion years old! During this unimaginable expanse of time, our planet has undergone drastic changes. For the earliest part of earth’s history, the planet was a molten inferno. As the planet slowly cooled, rocks and minerals began to form, and continents and ocean basins took shape. Earth’s continents today look nothing like they did hundreds of millions of years ago. In fact, the continents move around through a process called plate tectonics.
The Theory of Plat Tectonics is relatively modern and is very different from historic thought, which included ideas ranging from shrinking earth to continents moving across the ocean floor. Fossil evidence paired with lithographic correlation helped solidify the concept of plate tectonics to the theory we know today.
The Creation of the Ocean FloorSCI209Running head .docxtodd241
The Creation of the Ocean Floor
SCI/209
Running head: THE CREATION OF THE OCEAN FLOOR
1
THE CREATION OF THE OCEAN FLOOR
5
The Creation of the Ocean Floor
One scientific speculation about the beginning of ocean water declares that as Earth developed from a gas and dust cloud more than 4.5 billion years ago, an enormous quantity of insubstantial elements such as oxygen and hydrogen became confined inside the liquefied inner part of the newly formed planet (Advameg, 2013). In the course of the first few billion years following planets formation, these basic gases emerged across thousands of miles of red-hot and liquefying rock to discharge on the Earth’s surface through fissures (long narrow cracks) and volcanoes.
Inside the earth and atop the exterior, the gas hydrogen joined oxygen developing water. Massive amounts of liquid blanketed the planet as an extraordinarily heavy atmosphere of water cloud. Close to the uppermost part of the atmosphere, where high temperature may possibly dissipate to outward reaches of the earth, water vapor concentrated to a liquid form and dropped into the stratum below, chilling the level. This atmospheric cool down procedure lasted till the initial precipitation dropped to the planet’s young exterior and flared into a misty haze. This came to pass as the creation of an astonishing downpour that through the course of time, progressively filled the ocean cavities.
There are three major classes of tectonic plate boundaries: divergent boundaries, covergent boundaries, and transform boundaries. The divergent boundaries outstanding features are fresh crust is produced as two or more plates tear away from one other. Oceans are generated and grow broader where plates deviate or pull apart. Seafloor expanding is a process in which the molten rock produces new ground underneath water. This progression takes millions of years to establish a 10 foot hill because growth fluctuates from two to 10 centimeters yearly. The convergent boundaries outstanding features are here crust is demolished and reprocessed back into the inside of the Earth as one plate descents under another. These are recognized as Subduction Zones - volcanoes and mountains are often discovered where plates come together. The kinds of volcanoes that can occur depend on the chemical composition of the molten rock that decides its fluidity. There are three kinds of convergent boundaries: Oceanic-Continental Convergence, Oceanic-Oceanic Convergence, and Continental-Continental Convergence (Platetectonics, 2010). The transform boundaries outstanding features are when two plates are skimming parallel by each other. These are additionally identified as transform boundaries or in addition normally called faults. The San Andreas Fault is the best known and considered the most lethal translational line.
One natural event that occurs as a direct result of plate boundary interactions is a tsunami. Plate tectonics are the secondary trigger of tsunamis. When a maj.
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
Explore the innovative world of trenchless pipe repair with our comprehensive guide, "The Benefits and Techniques of Trenchless Pipe Repair." This document delves into the modern methods of repairing underground pipes without the need for extensive excavation, highlighting the numerous advantages and the latest techniques used in the industry.
Learn about the cost savings, reduced environmental impact, and minimal disruption associated with trenchless technology. Discover detailed explanations of popular techniques such as pipe bursting, cured-in-place pipe (CIPP) lining, and directional drilling. Understand how these methods can be applied to various types of infrastructure, from residential plumbing to large-scale municipal systems.
Ideal for homeowners, contractors, engineers, and anyone interested in modern plumbing solutions, this guide provides valuable insights into why trenchless pipe repair is becoming the preferred choice for pipe rehabilitation. Stay informed about the latest advancements and best practices in the field.
Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
Hierarchical Digital Twin of a Naval Power SystemKerry Sado
A hierarchical digital twin of a Naval DC power system has been developed and experimentally verified. Similar to other state-of-the-art digital twins, this technology creates a digital replica of the physical system executed in real-time or faster, which can modify hardware controls. However, its advantage stems from distributing computational efforts by utilizing a hierarchical structure composed of lower-level digital twin blocks and a higher-level system digital twin. Each digital twin block is associated with a physical subsystem of the hardware and communicates with a singular system digital twin, which creates a system-level response. By extracting information from each level of the hierarchy, power system controls of the hardware were reconfigured autonomously. This hierarchical digital twin development offers several advantages over other digital twins, particularly in the field of naval power systems. The hierarchical structure allows for greater computational efficiency and scalability while the ability to autonomously reconfigure hardware controls offers increased flexibility and responsiveness. The hierarchical decomposition and models utilized were well aligned with the physical twin, as indicated by the maximum deviations between the developed digital twin hierarchy and the hardware.
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
CFD Simulation of By-pass Flow in a HRSG module by R&R Consult.pptxR&R Consult
CFD analysis is incredibly effective at solving mysteries and improving the performance of complex systems!
Here's a great example: At a large natural gas-fired power plant, where they use waste heat to generate steam and energy, they were puzzled that their boiler wasn't producing as much steam as expected.
R&R and Tetra Engineering Group Inc. were asked to solve the issue with reduced steam production.
An inspection had shown that a significant amount of hot flue gas was bypassing the boiler tubes, where the heat was supposed to be transferred.
R&R Consult conducted a CFD analysis, which revealed that 6.3% of the flue gas was bypassing the boiler tubes without transferring heat. The analysis also showed that the flue gas was instead being directed along the sides of the boiler and between the modules that were supposed to capture the heat. This was the cause of the reduced performance.
Based on our results, Tetra Engineering installed covering plates to reduce the bypass flow. This improved the boiler's performance and increased electricity production.
It is always satisfying when we can help solve complex challenges like this. Do your systems also need a check-up or optimization? Give us a call!
Work done in cooperation with James Malloy and David Moelling from Tetra Engineering.
More examples of our work https://www.r-r-consult.dk/en/cases-en/
Water scarcity is the lack of fresh water resources to meet the standard water demand. There are two type of water scarcity. One is physical. The other is economic water scarcity.
4. It is the unifying theory of geology.
The theory that describes the LITHOSPHERE
(the outer layer of the earth ) as a collection
of rigid plates that move sideways above a
less rigid layer called ASTHENOSPHERE.
“Tectonic”, refers to the deformation of
the crust as a consequence of plate
interaction.
5. Plates are made of rigid lithosphere.
PLATES ARE
MADE OF RIGID
LITHOSPHERE.
The lithosphere is
made up of the crust
and the upper part of
the mantle.
Below the lithosphere
(which makes up the
tectonic plates) is the
ASTHENOSPHERE.
8. • The principle of recycling materials
or using the materials many times .
2 EXAMPLES OF GEOLOGIC CYCLE :
The Rock Cycle
The Water Cycle
9. Is a sequence of events
involving the
formation, alteration,
destruction, and
reformation of rocks as a
result of natural processes
weathering
Sedimentary
weathering
Sedimentary Metamorphic
10. The eminent 18th
century lawyer,
doctor, gentleman
farmer and founder
of modern
geoscience,
James Hutton,
developed the
concept of the Rock
Cycle to show how
rocks and natural,
physical processes
are interrelated.
Hutton knew about solar
energy and gravity at the
surface.
But he did not know about
radioactive heating
from inside the earth.
Solar energy, gravity and
radioactive heating are
the major forces driving
the Rock Cycle.
As a result, the Rock Cycle
will be self-sustaining for
thousands of millions of
years.
11. The mantle, crust and surface of the earth
can be thought of as a giant recycling machine;
rocks are neither created nor destroyed,
but redistributed and transformed from
one rock type to another.
15. Also known as HYDROLOGIC CYCLE
the natural sequence through which water passes
into the atmosphere as water vapour, Precipitates
to earth in liquid or solid form , and ultimately
returns to the atmosphere through evaporation
16. The process of evaporation from plants is called
TRANSPIRATION. (In other words, it’s like
plants sweating.)
When rain falls on the land, some of the water is
absorbed into the ground forming pockets of water
called groundwater. Most groundwater eventually
returns to the ocean. Other precipitation runs
directly into streams or rivers. Water that collects in
rivers, streams, and oceans is called RUNOFF.
When the water in the clouds gets too
heavy, the water falls back to the earth.
This is called PRECIPITATION.
As water (in the form of gas) rises higher in the
atmosphere, it starts to cool and become a liquid again.
This process is called CONDENSATION. When a large
amount of water vapor condenses, it results in the
formation of clouds.
During part of the water cycle, the sun heats
up liquid water and changes it to a gas by the
process of EVAPORATION. Water that
evaporates from Earth’s oceans, lakes, rivers,
and moist soil rises up into the atmosphere.
19. A geological doctrine suggesting that Earth's geologic
processes acted in the same manner and with essentially the
same intensity in the past as they do in the present and that
such uniformity is sufficient to account for all geologic
change.
The principle of uniformitarianism depends on the
“UNIFORMITY OF LAWS” w/c assumes that the laws of
physics and chemistry have remained constant
20. James Hutton, Scottish geologist,
chemist, naturalist, and originator
of one of the fundamental
principles of geology—
uniformitarianism, which explains
the features of the Earth's crust by
means of natural processes over
geologic time. And later
popularised by Charles Lyell's
Principles of Geology in 1830.
Founder of Modern Geology
21.
22. Geology originated as a modern scientific discipline
People made stone tools and pottery and had to know
w/c materials were useful for these tasks.
Ancient Greek and Roman philosophers began the
task of keeping written records relating to geology.
People began to study mineralogy and made detailed
geologic observations
23. Brought widespread study of geology including the
publications of Charles Lyell’s book
and the (expeditions that focused on
the collection of geologic and other scientific data).
the field of geology expanded and geologists
developed the theories of :
CONTINENTAL DRIFT
PLATE TECTONICS
SEAFLOOR SPREADING
30. SAME ROCK:
DIFFERENT RANGE
Existing mountain ranges
separated by vast oceans
contain rocks of identical
mineral content.
A prime example are the
Appalachian Mountains in
the eastern U.S and the
Caledonian Mountains in
the British Isles.
34. Theory of Plate Tectonics is the idea that the
Earth’s crust and upper mantle are broken into
sections called plates that move around on the
mantle.
LITHOSPHERE
– the crust and part of the upper mantle
ASTHENOSPHERE
– the plastic-like layer below the lithosphere
35. TYPES OF PLATES
CONTINENTAL
• Thicker than oceanic
• Made ofigneous and metamorphic rock
covered by sedimentary rock.
OCEANIC
• Thinner than continental
• Made ofdense igneous rock coveredby
a thin layer ofsediment.
36.
37. Divergent Boundaries are the boundaries
between two plates that are diverging, or moving
away from each other.
38. Are the boundaries between two plates that are
converging, or moving towards each other.
39. There are three types of
convergent boundaries:
1. An ocean floor plate
collides with a less dense
continental plate.
2. An ocean floor plate
collides with another
ocean floor plate.
3. A continental plate
collides with another
continental plate.
40. • also known as a transform fault system,
forms as plates slide past one another in
opposite directions without converging or
diverging.
41. LANDFORMS CAUSED BY PLATE TECTONICS:
A. Rift Valleys (Divergent Boundaries)
B. Mountain Ranges (Continental-continental
Convergent Boundaries)
C. Volcanoes (Oceanic-continental Convergent
Boundaries)
D. Faults (Transform Boundaries)
42. CONVECTION CELLS in the mantle move the plates.
Hot in the center, less dense magma rises up due
to heat.
When the magma reaches the surface, it cools
and sinks back down creating a circular pattern of
movement.
This process happens continually.
45. HARRY HESS
•An American scientist named Harry
Hess proposed the seafloor spreading
theory in 1962.
•The Sea floor spreading theory states
that new ocean crust is being created
at mid-ocean ridges (which are large
mountain chains underwater) and
destroyed at deep-sea trenches.
•This is proof that the plates are
moving along on a “conveyor belt” so
Wegner’s idea on continent drift was
correct.
46. The force responsible for driving or moving the
plates is convection current.
Convection Currents occur within the mantle of the
earth when hot magma rises and cool magma sinks