Rocks and rock cycle
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Rocks are naturally occurring aggregates of minerals that make up the lithosphere of Earth. The rock cycle describes how rocks are formed from magma or sediments and changed over time by melting, crystallization, weathering, erosion, deposition, compaction, and metamorphism due to heat and pressure. Sedimentary rocks form from the lithification of sediments, igneous rocks form from the cooling of magma, and metamorphic rocks form from changes to existing rocks by heat and pressure within Earth.
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This document defines and provides examples of three main types of rocks: igneous, sedimentary, and metamorphic. Igneous rocks form from cooling magma or lava. There are intrusive igneous rocks, which cool underground, and extrusive ones, which erupt onto the surface. Sedimentary rocks form from compressed and cemented sediments and include clastic, chemical, and organic types. Metamorphic rocks were once igneous or sedimentary rocks that were altered by heat, pressure, and chemical processes deep underground into foliated types with layers like gneiss and non-foliated kinds such as marble.
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The document summarizes the three main rock types - igneous, sedimentary, and metamorphic rocks - and their characteristics and formation processes. Igneous rocks form from cooling magma, either underground as intrusive rocks like batholiths and dikes or above ground as extrusive rocks like lava flows. Sedimentary rocks form through the compaction and cementation of sediments like sand, silt, and clay. Metamorphic rocks form from existing rocks undergoing changes due to heat and pressure in processes like contact metamorphism or regional metamorphism.
The rock cycle
The document describes the rock cycle, which is the continuous process by which rocks are formed and broken down over geological time. Sediments are deposited and compacted into sedimentary rock, which is then buried deep underground and subjected to heat and pressure to form metamorphic rock. Metamorphic rock can melt to form magma, which cools to form igneous rock. Tectonic plate movement brings rock types closer to Earth's surface through uplift. Rock at the surface is eventually weathered and eroded back into sediments, restarting the cycle.
Rock Cycle/EPCC/LM3
The document discusses the rock cycle and how different types of rocks are formed. It defines rocks as aggregates of minerals and describes the three main types - igneous, sedimentary, and metamorphic - based on their mode of origin. The rock cycle describes how rocks can be transformed into different types through geological processes like crystallization, weathering and erosion, deposition, lithification, and metamorphism due to pressure and heat within the Earth. Plate tectonics also influence the rock cycle as rocks form at sites of volcanic activity, mountain building, and sediment deposition at plate boundaries.
Earth Science 3 1
The document discusses the rock cycle and the three main types of rocks - igneous, sedimentary, and metamorphic. Igneous rocks form from cooling magma, sedimentary rocks form through compaction and cementation of sediments, and metamorphic rocks form under heat and pressure. The rock cycle illustrates how rocks continuously change between these three types through geological processes powered by Earth's interior heat and energy from the sun at the surface.
6th Grade Chapter 15 Part 2
The document summarizes the three main rock types - igneous, sedimentary, and metamorphic rocks - and how they relate in the rock cycle. Igneous rocks form from cooling magma underground or lava on the surface. Sedimentary rocks form from compression of sediments. Metamorphic rocks form from changes to existing rocks through heat, pressure, and fluids. The rock cycle shows how all three rock types are interrelated and can transform into one another over time.
Rockcyc Mineral
The document discusses the rock cycle and the relationships between the three main rock groups: igneous, sedimentary, and metamorphic rocks. Igneous rocks form from cooling magma, either deep underground or at the surface. Sedimentary rocks form at the surface from eroded materials that are transported and deposited. Metamorphic rocks form from existing rocks that are changed by heat, pressure, and fluids deep underground. The rock cycle demonstrates how rocks are continuously being formed and reformed through geological processes both at the surface and in Earth's interior.
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Rocks and rock cycle
- 1. ROCKS AND ROCK CYCLE
- 2. ROCK Naturally-occurring, coherent aggregate of minerals such as natural gas or organic matter. Lithosphere – rigid, rocky, outermost part of Earth, composed of the crust and uppermost part of the upper mantle.
- 3. ROCK CYCLE A model that describes all the processes by which rocks are formed, modified, transported, decomposed, melted, and reformed. Dynamic cycle of processes and products
- 4. Index Mineral Scale Common Objects melting magma crystallization igneous rocks uplift and exposure sediments weathering and erosion sedimentary rocks transportation metamorphic rocks deposition lithification metamorphism Process and Products of the Rock Cycle
- 5. Sedimentary rock Metamorphic rock Igneous rock sedimen ts magma Burial compaction Heatand/or pressure metamorphis m Weathering anderosion (Uplift) Heat and/or pressure metamorphis m
- 6. Sedimentary rock Metamorphic rock Igneous rock sedimen ts magma Burial compaction Heatand/or pressure metamorphis m Weathering anderosion (Uplift) Heat and/or pressure metamorphis m
- 7. Sedimentary rock Metamorphic rock Igneous rock sedimen ts magma Burial compaction Heatand/or pressure metamorphis m Weathering anderosion (Uplift) Heat and/or pressure metamorphis m
- 8. Sedimentary rock Metamorphic rock Igneous rock sedimen ts magma Burial compaction Heatand/or pressure metamorphis m Weathering anderosion (Uplift) Heat and/or pressure metamorphis m
- 9. Sedimentary rock Metamorphic rock Igneous rock sedimen ts magma Burial compaction Heatand/or pressure metamorphis m Weathering anderosion (Uplift) Heat and/or pressure metamorphis m