PPT on Earth and Life Science - Igneous Rock.ppt
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There are two main types of igneous rocks: intrusive and extrusive. Intrusive rocks, like granite, form underground when magma cools slowly, allowing large crystals to form. Extrusive rocks, like basalt, form above ground through volcanism, cooling rapidly with fine-grained textures. Igneous rocks differ in their location and rate of cooling, which determines crystal size and texture.
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Environmental science
1. Petrology is the branch of geology that studies the formation, classification, and occurrence of rocks.
2. There are 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 and cementation of sediments. Metamorphic rocks form through heat and pressure altering existing rocks.
3. Rocks are composed of minerals, which are naturally occurring inorganic solids with distinct physical properties used to identify them.
Igneous Rocks Properties.pptx
Igneous rocks are formed by the cooling and solidification of molten rock either below or above the Earth's surface. There are three main types - mafic rocks like basalt that are rich in magnesium and iron; felsic rocks like granite that contain more silica and lack magnesium/iron; and intermediate rocks with mixtures like andesite. Igneous rocks are also classified based on their texture and mineral crystal size as extrusive volcanic rocks formed above ground, hypabyssal rocks formed below ground, or intrusive plutonic rocks formed deep underground where larger crystals can form.
Geotechnics & applied geology 21306006
This document provides an overview of petrology and the classification of rocks. It discusses the three main types of rocks - igneous, metamorphic, and sedimentary rocks. For each rock type, it describes their origin and formation processes. It also discusses various rock properties such as texture, structure, and mineral composition. The document emphasizes the importance of petrology for civil engineering applications when constructing with and building on various rock formations.
Rocks
Rocks are divided into three main types based on their origin: igneous, sedimentary, and metamorphic. Igneous rocks form from the cooling and solidification of magma either underground (intrusive/plutonic rocks like granite) or on the surface (extrusive/volcanic rocks like rhyolite and basalt). Sedimentary rocks form from the compaction and cementation of sediments. Metamorphic rocks form from the alteration of existing rocks via heat, pressure, and chemical reactions. Rocks continuously cycle between these three types through geological processes like erosion, deposition, and tectonic activity.
G 7 geo ch-2 inside our earth full chapter week-2
The document provides information about rocks and the interior of the Earth. It discusses three key topics:
1) The interior of the Earth is composed of layers, including the crust, mantle, and core. The crust is the thinnest layer and is made up of two types - continental and oceanic.
2) There are three main types of rocks - igneous, sedimentary, and metamorphic. Igneous rocks form from cooling magma, sedimentary rocks form from compressed sediments, and metamorphic rocks form from changes to other rock types.
3) Rocks undergo the rock cycle as they are broken down, transformed by heat and pressure, and form new types of rocks
Igneous rock ge 106
This document provides an overview of igneous rocks and their formation. It discusses that igneous rocks form from the cooling of molten magma or lava. The cooling rate affects crystal size - slower cooling produces larger crystals and faster cooling produces smaller crystals. Intrusive igneous rocks cool slowly underground and have coarse grains, while extrusive rocks cool quickly at the surface and have fine grains. Texture is determined by crystal size and arrangements. Examples of textures discussed are phaneritic, aphanitic, porphyritic, glassy and pyroclastic.
Ppt on rocks
Rocks are naturally occurring solid aggregates of minerals or mineraloids. There are three main types of rocks: igneous, sedimentary, and metamorphic. Igneous rocks form from cooling magma either underground (plutonic) or on the surface (volcanic). Sedimentary rocks form from the compaction and cementation of fragments. Metamorphic rocks form from changes to existing igneous and sedimentary rocks through heat and pressure. The rock cycle describes the interrelationships between these three rock types through geological processes like weathering, erosion, deposition, and metamorphism.
Rocks
Rocks are naturally occurring mixtures of minerals that are classified based on their formation and composition. Rocks change over time through the rock cycle. There are three main types of rocks: igneous rocks formed by cooling magma, sedimentary rocks formed from compacted sediments, and metamorphic rocks formed by changes to existing rocks through heat and pressure. Rocks can change from one type to another through the rock cycle.
Recommended
Environmental science
1. Petrology is the branch of geology that studies the formation, classification, and occurrence of rocks.
2. There are 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 and cementation of sediments. Metamorphic rocks form through heat and pressure altering existing rocks.
3. Rocks are composed of minerals, which are naturally occurring inorganic solids with distinct physical properties used to identify them.
Igneous Rocks Properties.pptx
Igneous rocks are formed by the cooling and solidification of molten rock either below or above the Earth's surface. There are three main types - mafic rocks like basalt that are rich in magnesium and iron; felsic rocks like granite that contain more silica and lack magnesium/iron; and intermediate rocks with mixtures like andesite. Igneous rocks are also classified based on their texture and mineral crystal size as extrusive volcanic rocks formed above ground, hypabyssal rocks formed below ground, or intrusive plutonic rocks formed deep underground where larger crystals can form.
Geotechnics & applied geology 21306006
This document provides an overview of petrology and the classification of rocks. It discusses the three main types of rocks - igneous, metamorphic, and sedimentary rocks. For each rock type, it describes their origin and formation processes. It also discusses various rock properties such as texture, structure, and mineral composition. The document emphasizes the importance of petrology for civil engineering applications when constructing with and building on various rock formations.
Rocks
Rocks are divided into three main types based on their origin: igneous, sedimentary, and metamorphic. Igneous rocks form from the cooling and solidification of magma either underground (intrusive/plutonic rocks like granite) or on the surface (extrusive/volcanic rocks like rhyolite and basalt). Sedimentary rocks form from the compaction and cementation of sediments. Metamorphic rocks form from the alteration of existing rocks via heat, pressure, and chemical reactions. Rocks continuously cycle between these three types through geological processes like erosion, deposition, and tectonic activity.
G 7 geo ch-2 inside our earth full chapter week-2
The document provides information about rocks and the interior of the Earth. It discusses three key topics:
1) The interior of the Earth is composed of layers, including the crust, mantle, and core. The crust is the thinnest layer and is made up of two types - continental and oceanic.
2) There are three main types of rocks - igneous, sedimentary, and metamorphic. Igneous rocks form from cooling magma, sedimentary rocks form from compressed sediments, and metamorphic rocks form from changes to other rock types.
3) Rocks undergo the rock cycle as they are broken down, transformed by heat and pressure, and form new types of rocks
Igneous rock ge 106
This document provides an overview of igneous rocks and their formation. It discusses that igneous rocks form from the cooling of molten magma or lava. The cooling rate affects crystal size - slower cooling produces larger crystals and faster cooling produces smaller crystals. Intrusive igneous rocks cool slowly underground and have coarse grains, while extrusive rocks cool quickly at the surface and have fine grains. Texture is determined by crystal size and arrangements. Examples of textures discussed are phaneritic, aphanitic, porphyritic, glassy and pyroclastic.
Ppt on rocks
Rocks are naturally occurring solid aggregates of minerals or mineraloids. There are three main types of rocks: igneous, sedimentary, and metamorphic. Igneous rocks form from cooling magma either underground (plutonic) or on the surface (volcanic). Sedimentary rocks form from the compaction and cementation of fragments. Metamorphic rocks form from changes to existing igneous and sedimentary rocks through heat and pressure. The rock cycle describes the interrelationships between these three rock types through geological processes like weathering, erosion, deposition, and metamorphism.
Rocks
Rocks are naturally occurring mixtures of minerals that are classified based on their formation and composition. Rocks change over time through the rock cycle. There are three main types of rocks: igneous rocks formed by cooling magma, sedimentary rocks formed from compacted sediments, and metamorphic rocks formed by changes to existing rocks through heat and pressure. Rocks can change from one type to another through the rock cycle.
Materials of the earth'scrust
The document discusses the materials that make up Earth's crust. It describes how rocks are composed of minerals, and lists some of the most common rock-forming minerals like quartz, feldspar, mica, and calcite. It also categorizes the main types of rocks as igneous, sedimentary, and metamorphic, and provides details on their formation processes.
lesson63typsofrocks-161207135212.pptx
The document outlines learning outcomes for a lesson on rock types:
a) Identify and describe the three basic rock types;
b) Describe how each rock type forms and define their environments;
c) Describe how rocks are transformed through the rock cycle;
d) Identify and describe geologic processes in the rock cycle.
Rock Formation Q & A
The document provides information about rock formation and classification. It defines igneous, sedimentary and metamorphic rocks. Igneous rocks form from cooling magma, either below the surface (intrusive) or above (extrusive). Sedimentary rocks form through compaction and cementation of sediments. Metamorphic rocks form from changes to existing rocks through heat, pressure and fluids. Rocks are classified based on texture, composition and formation processes. The rock cycle illustrates how rocks continuously change between the three main types through various natural processes.
Igneous-Rocks-spring-2019-final.ppt
1) The document provides a lesson plan on igneous rocks, which form from cooled lava or magma.
2) Students learn about the differences between intrusive and extrusive igneous rocks based on where they form.
3) Through observations of rock and mineral samples using magnifying glasses, students classify rocks as basaltic/mafic versus granitic/felsic based on color and crystal size.
4) Demonstrations using dry ice show how shield volcanoes slowly erupt lava while stratovolcanoes erupt explosively.
Remya new inovative
The lesson plan discusses the different types of rocks and how they are formed. It introduces igneous, sedimentary, and metamorphic rocks. Igneous rocks form when molten rock material hardens either on the surface or within the earth's crust. Sedimentary rocks form through the weathering and deposition of debris over time. Metamorphic rocks form from changes to existing rocks through high temperatures and pressures. The lesson uses presentations and activities to help students understand how rocks form and classify different rock types based on their mode of formation.
igneous rocks formation and their classification
This document provides an introduction and overview of igneous rocks. It defines igneous rocks as those formed by the solidification of magma or lava. Igneous rocks are classified based on whether they solidified below ground as intrusive rocks or above ground as extrusive rocks. Some common igneous rocks are described, including granite, gabbro, basalt, dolerite, and diorite. Their typical compositions and properties are outlined.
RC
The document discusses the rock cycle, which describes how rocks are continuously changing forms over geological time through igneous, sedimentary, and metamorphic processes. Igneous rocks form from the cooling of magma either below ground as plutonic rocks or above ground as volcanic rocks. Sedimentary rocks form from the lithification of sediments eroded from other rocks. Metamorphic rocks form from changes to existing rocks through heat, pressure, and fluids in the Earth. The rock cycle demonstrates how these three main rock groups are interrelated and how matter is recycled over time through weathering, erosion, deposition, and tectonic activity.
II.A Minerals and Rocks
Core Subject: Earth and Life Science
II. Earth Materials and Processes
A. Minerals and Rocks
The learners
demonstrate an
understanding of:
1. the three main categories of rocks
2. the origin and environment of formation of common minerals and rocks
The learners:
1. identify common rock-forming minerals using their physical and chemical properties
2. classify rocks into igneous, sedimentary, and metamorphic
THE THREE TYPES OF ROCKS (Lets Rock N Roll)
The document outlines specific learning outcomes for a lesson on rock types. At the end of the lesson, students will be able to: identify and describe the three basic rock types; describe how each rock type forms and define their environments of formation; describe how rocks are transformed through the rock cycle; and identify and describe different geologic processes in the rock cycle.
3 TYPES OF ROCKS
The document outlines specific learning outcomes for a lesson on rock types. At the end of the lesson, students will be able to: identify and describe the three basic rock types; describe how each rock type forms and define their environments of formation; describe how rocks are transformed through the rock cycle; and identify and describe different geologic processes in the rock cycle.
E.g ex 3 igneous rocks (2015-16 )
Igneous rocks form from the cooling and solidification of magma or lava. There are three main types based on formation environment: volcanic, hypabyssal, and plutonic. Volcanic rocks form from lava at the Earth's surface and are typically fine-grained. Plutonic rocks form deep underground and are usually coarse-grained due to slow cooling. Texture depends on factors like cooling rate and mineral composition, ranging from glassy to phaneritic. Igneous rocks are classified based on their mineralogy and chemistry, particularly their silica content.
Unit 6 Rocks.pdf
This document provides an overview of rocks, including their definition, types, characteristics, and importance. It discusses the three main types of rocks: igneous, sedimentary, and metamorphic. Igneous rocks form from the cooling of magma, sedimentary rocks form through the compaction and cementation of sediments, and metamorphic rocks form from changes to pre-existing rocks through heat and pressure. The document also outlines key characteristics and formation processes for each rock type, and describes their economic and other importance, as well as some disadvantages.
Rocks With Miss Gow
Volcanoes form from hot lava where earthquakes occur. Volcanoes are deep and hot, forming lava that explodes out. Rocks make up hills, mountains, plains and valleys. Rocks are mostly made of mineral crystals or pieces of other rocks or shells of living things. Igneous rocks cool slowly underground and form large mineral grains that can be seen.
Rocks With Miss Gow
Volcanoes form from hot lava where earthquakes occur. Volcanoes are deep and hot, forming lava that explodes out. Rocks make up hills, mountains, plains and valleys. Rocks are mostly made of mineral crystals or pieces of other rocks or shells of living things. Igneous rocks cool slowly underground and form large mineral grains that can be seen.
Rocks With Miss Gow
Volcanoes form from hot lava where earthquakes occur. Volcanoes are deep and hot, forming lava that explodes out. Rocks make up hills, mountains, plains and valleys. Rocks are mostly made of mineral crystals or pieces of other rocks or shells of living things. Igneous rocks cool slowly underground and form large mineral grains that can be seen.
Rocks
Rocks can be divided into three main classes based on their mode of formation:
1) Igneous or primary rocks such as basalt and granite form by the cooling and solidification of magma either underground or on the surface.
2) Sedimentary or secondary rocks like sandstone and limestone form by the compaction and cementation of sediment.
3) Metamorphic rocks such as gneiss, schist, and marble form by the alteration of pre-existing rocks due to heat, pressure, and chemical changes.
Minerals and rocks
The document discusses the three main types of rocks: igneous, sedimentary, and metamorphic. Igneous rocks form when magma or lava cools and hardens. Sedimentary rocks form through the compaction and cementation of sediments. Metamorphic rocks form when existing rocks are changed by heat, pressure, and chemical reactions deep underground. The rock cycle shows how the three rock types are interrelated as one rock type transforms into another over time.
ROCK CYCLE.pptx
The document discusses the rock cycle and how different types of rocks are formed. It describes:
1) The rock cycle is a series of changes where geological forces cause rocks to change from one type to another, such as igneous to sedimentary or metamorphic.
2) Igneous rocks form from the cooling of magma, either below ground (intrusive) or above ground (extrusive). Sedimentary rocks form from the compaction or cementation of sediments.
3) Metamorphic rocks are formed from existing rocks that undergo changes from heat, pressure, and chemical processes deep underground.
4_Earth_and_Life_Science.pptx
This document provides information about the three types of rocks: igneous, sedimentary, and metamorphic. It defines each rock type, describing how they are formed. Igneous rocks form from the cooling of magma either underground or on the surface. Sedimentary rocks form from the compaction and cementation of sediments. Metamorphic rocks form from the alteration of existing rocks through heat, pressure, and chemical changes. The document also provides examples of different rock types and outlines how to identify and classify rocks based on their characteristics.
4_Earth_and_Life_Science.pptx
This document provides an overview of rocks and the three main types - igneous, sedimentary, and metamorphic. It defines rocks as naturally occurring aggregates of minerals. Igneous rocks form from cooling magma, and can be extrusive or intrusive. Sedimentary rocks form through compaction and cementation of sediments. Metamorphic rocks form from pre-existing rocks undergoing changes in pressure and temperature. The document outlines characteristics and examples of different rock types, and provides assessment questions to test understanding.
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Origin of the Universe.ppt
The document discusses several hypotheses for the origin of the universe and the solar system. It states that the widely accepted Big Bang Theory proposes that the universe began approximately 13.8 billion years ago from the violent expansion of space-time and extremely dense and hot matter. It also describes the Nebular Hypothesis for the formation of the solar system, which suggests that the sun and planets formed from a giant rotating cloud of gas and dust approximately 4.6 billion years ago. Additionally, it briefly outlines other hypotheses such as the Creationist Theory, Oscillating Universe Theory, and Steady-State Theory.
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Similar to PPT on Earth and Life Science - Igneous Rock.ppt
Materials of the earth'scrust
The document discusses the materials that make up Earth's crust. It describes how rocks are composed of minerals, and lists some of the most common rock-forming minerals like quartz, feldspar, mica, and calcite. It also categorizes the main types of rocks as igneous, sedimentary, and metamorphic, and provides details on their formation processes.
lesson63typsofrocks-161207135212.pptx
The document outlines learning outcomes for a lesson on rock types:
a) Identify and describe the three basic rock types;
b) Describe how each rock type forms and define their environments;
c) Describe how rocks are transformed through the rock cycle;
d) Identify and describe geologic processes in the rock cycle.
Rock Formation Q & A
The document provides information about rock formation and classification. It defines igneous, sedimentary and metamorphic rocks. Igneous rocks form from cooling magma, either below the surface (intrusive) or above (extrusive). Sedimentary rocks form through compaction and cementation of sediments. Metamorphic rocks form from changes to existing rocks through heat, pressure and fluids. Rocks are classified based on texture, composition and formation processes. The rock cycle illustrates how rocks continuously change between the three main types through various natural processes.
Igneous-Rocks-spring-2019-final.ppt
1) The document provides a lesson plan on igneous rocks, which form from cooled lava or magma.
2) Students learn about the differences between intrusive and extrusive igneous rocks based on where they form.
3) Through observations of rock and mineral samples using magnifying glasses, students classify rocks as basaltic/mafic versus granitic/felsic based on color and crystal size.
4) Demonstrations using dry ice show how shield volcanoes slowly erupt lava while stratovolcanoes erupt explosively.
Remya new inovative
The lesson plan discusses the different types of rocks and how they are formed. It introduces igneous, sedimentary, and metamorphic rocks. Igneous rocks form when molten rock material hardens either on the surface or within the earth's crust. Sedimentary rocks form through the weathering and deposition of debris over time. Metamorphic rocks form from changes to existing rocks through high temperatures and pressures. The lesson uses presentations and activities to help students understand how rocks form and classify different rock types based on their mode of formation.
igneous rocks formation and their classification
This document provides an introduction and overview of igneous rocks. It defines igneous rocks as those formed by the solidification of magma or lava. Igneous rocks are classified based on whether they solidified below ground as intrusive rocks or above ground as extrusive rocks. Some common igneous rocks are described, including granite, gabbro, basalt, dolerite, and diorite. Their typical compositions and properties are outlined.
RC
The document discusses the rock cycle, which describes how rocks are continuously changing forms over geological time through igneous, sedimentary, and metamorphic processes. Igneous rocks form from the cooling of magma either below ground as plutonic rocks or above ground as volcanic rocks. Sedimentary rocks form from the lithification of sediments eroded from other rocks. Metamorphic rocks form from changes to existing rocks through heat, pressure, and fluids in the Earth. The rock cycle demonstrates how these three main rock groups are interrelated and how matter is recycled over time through weathering, erosion, deposition, and tectonic activity.
II.A Minerals and Rocks
Core Subject: Earth and Life Science
II. Earth Materials and Processes
A. Minerals and Rocks
The learners
demonstrate an
understanding of:
1. the three main categories of rocks
2. the origin and environment of formation of common minerals and rocks
The learners:
1. identify common rock-forming minerals using their physical and chemical properties
2. classify rocks into igneous, sedimentary, and metamorphic
THE THREE TYPES OF ROCKS (Lets Rock N Roll)
The document outlines specific learning outcomes for a lesson on rock types. At the end of the lesson, students will be able to: identify and describe the three basic rock types; describe how each rock type forms and define their environments of formation; describe how rocks are transformed through the rock cycle; and identify and describe different geologic processes in the rock cycle.
3 TYPES OF ROCKS
The document outlines specific learning outcomes for a lesson on rock types. At the end of the lesson, students will be able to: identify and describe the three basic rock types; describe how each rock type forms and define their environments of formation; describe how rocks are transformed through the rock cycle; and identify and describe different geologic processes in the rock cycle.
E.g ex 3 igneous rocks (2015-16 )
Igneous rocks form from the cooling and solidification of magma or lava. There are three main types based on formation environment: volcanic, hypabyssal, and plutonic. Volcanic rocks form from lava at the Earth's surface and are typically fine-grained. Plutonic rocks form deep underground and are usually coarse-grained due to slow cooling. Texture depends on factors like cooling rate and mineral composition, ranging from glassy to phaneritic. Igneous rocks are classified based on their mineralogy and chemistry, particularly their silica content.
Unit 6 Rocks.pdf
This document provides an overview of rocks, including their definition, types, characteristics, and importance. It discusses the three main types of rocks: igneous, sedimentary, and metamorphic. Igneous rocks form from the cooling of magma, sedimentary rocks form through the compaction and cementation of sediments, and metamorphic rocks form from changes to pre-existing rocks through heat and pressure. The document also outlines key characteristics and formation processes for each rock type, and describes their economic and other importance, as well as some disadvantages.
Rocks With Miss Gow
Volcanoes form from hot lava where earthquakes occur. Volcanoes are deep and hot, forming lava that explodes out. Rocks make up hills, mountains, plains and valleys. Rocks are mostly made of mineral crystals or pieces of other rocks or shells of living things. Igneous rocks cool slowly underground and form large mineral grains that can be seen.
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Volcanoes form from hot lava where earthquakes occur. Volcanoes are deep and hot, forming lava that explodes out. Rocks make up hills, mountains, plains and valleys. Rocks are mostly made of mineral crystals or pieces of other rocks or shells of living things. Igneous rocks cool slowly underground and form large mineral grains that can be seen.
Rocks With Miss Gow
Volcanoes form from hot lava where earthquakes occur. Volcanoes are deep and hot, forming lava that explodes out. Rocks make up hills, mountains, plains and valleys. Rocks are mostly made of mineral crystals or pieces of other rocks or shells of living things. Igneous rocks cool slowly underground and form large mineral grains that can be seen.
Rocks
Rocks can be divided into three main classes based on their mode of formation:
1) Igneous or primary rocks such as basalt and granite form by the cooling and solidification of magma either underground or on the surface.
2) Sedimentary or secondary rocks like sandstone and limestone form by the compaction and cementation of sediment.
3) Metamorphic rocks such as gneiss, schist, and marble form by the alteration of pre-existing rocks due to heat, pressure, and chemical changes.
Minerals and rocks
The document discusses the three main types of rocks: igneous, sedimentary, and metamorphic. Igneous rocks form when magma or lava cools and hardens. Sedimentary rocks form through the compaction and cementation of sediments. Metamorphic rocks form when existing rocks are changed by heat, pressure, and chemical reactions deep underground. The rock cycle shows how the three rock types are interrelated as one rock type transforms into another over time.
ROCK CYCLE.pptx
The document discusses the rock cycle and how different types of rocks are formed. It describes:
1) The rock cycle is a series of changes where geological forces cause rocks to change from one type to another, such as igneous to sedimentary or metamorphic.
2) Igneous rocks form from the cooling of magma, either below ground (intrusive) or above ground (extrusive). Sedimentary rocks form from the compaction or cementation of sediments.
3) Metamorphic rocks are formed from existing rocks that undergo changes from heat, pressure, and chemical processes deep underground.
4_Earth_and_Life_Science.pptx
This document provides information about the three types of rocks: igneous, sedimentary, and metamorphic. It defines each rock type, describing how they are formed. Igneous rocks form from the cooling of magma either underground or on the surface. Sedimentary rocks form from the compaction and cementation of sediments. Metamorphic rocks form from the alteration of existing rocks through heat, pressure, and chemical changes. The document also provides examples of different rock types and outlines how to identify and classify rocks based on their characteristics.
4_Earth_and_Life_Science.pptx
This document provides an overview of rocks and the three main types - igneous, sedimentary, and metamorphic. It defines rocks as naturally occurring aggregates of minerals. Igneous rocks form from cooling magma, and can be extrusive or intrusive. Sedimentary rocks form through compaction and cementation of sediments. Metamorphic rocks form from pre-existing rocks undergoing changes in pressure and temperature. The document outlines characteristics and examples of different rock types, and provides assessment questions to test understanding.
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Tags: Information Security, ISO/IEC 27001, ISO/IEC 42001, Artificial Intelligence, GDPR
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PPT on Earth and Life Science - Igneous Rock.ppt
- 1. TYPES OF IGNEOUS ROCKS EARTH AND LIFE SCIENCE QUARTER I
- 2. DEPARTMENT OF EDUCATION Learning Competency: • Compare and contrast the formation of the different types of igneous rocks S11/12ES- Ic-18 2
- 3. DEPARTMENT OF EDUCATION Igneous Rocks Igneous rocks - are rocks that have formed out of magma (molten rock) - felsic or mafic - coarse-grained or fine-grained - intrusive or extrusive ex: granite and basalt. 3
- 4. DEPARTMENT OF EDUCATION • There are many different types of igneous rocks. They all have in common that they were all once melted, and have since cooled down and become solid. • Igneous rocks look different because of two factors: they cooled at different rates and the "Mother" Magma (original melted rock) was different. 4
- 5. DEPARTMENT OF EDUCATION • Rocks that are cooled outside of the volcano are called volcanic rocks, and those that cool inside the lithosphere are called plutonic rocks. 5
- 6. DEPARTMENT OF EDUCATION 6 Types of Igneous Rocks 1. Intrusive igneous rocks - are formed when the magma hardens before an eruption occurs through the process called Plutonism. Different rock materials allow the formation of intrusive igneous rocks. The most common example is granite.
- 7. DEPARTMENT OF EDUCATION 7 Granite is used in floor tiles and monuments. Granite is a rock that typically looks pink and white with black specks.
- 8. DEPARTMENT OF EDUCATION 2. Extrusive igneous rocks – are formed when the lava cools and solidifies on the Earth surface through the process called volcanism. The texture of these rock is finer as compared to the intrusive igneous rocks. Due to slow cooling of the lava, large crystals are formed on the rocks. The most common example is basalt. 8
- 9. DEPARTMENT OF EDUCATION 9 Basalt is used for construction purposes such as pavements, railroads, and road base. Basalt generally just looks black.
- 10. DEPARTMENT OF EDUCATION Questions: 1. What are the two types of igneous rocks? 2. Compare plutonism and volcanism as to igneous rock formation. 3. Fill in the table with the data needed. 10 CATEGORY TYPES OF IGNEOUS ROCKS 1. Location of cooling and solidification 2. Rate of cooling 3. Size of crystals formed 4. Texture
- 11. DEPARTMENT OF EDUCATION References: • https://www.brighthub.com/environment/science- environmental/articles/96398.aspx# • https://msnucleus.org/membership/html/k- 6/pt/volcanoes/5/ptv5_2a.html • www.quipperschool.com • Earth and Life Science TG pp. 57-59 11
- 12. THANK YOU!
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