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Our Changing Landforms
Our Changing Landforms

... Basalt and pumice are extrusive igneous rocks. The type of rock that forms depends on the magma it came from, but generally extrusive igneous rocks: 1. Are very fine grained - magma cools very quickly when it erupts onto the Earth's surface and the crystals in the rock don't have much time to grow. ...
Rocks and Minerals posted version
Rocks and Minerals posted version

... — Clastic rocks—transported sediment particles—bits and pieces of weathered rock (shale, sandstone, conglomerate) — Chemical rocks—sediments that were once in dissolved in water. (travertine, ...
MCQ - tcspgnn
MCQ - tcspgnn

... ? weathering, erosion, transportation, deposition, burial, pressure, cementation ? burial, melting, cooling ? may involve burial first, heat and/or pressure, recrystallisation without melting ? burial, pressure, cooling, recrystallisation Which is a sedimentary rock? [8h-47] ...
File
File

... Sediments can harden into sedimentary rock in two ways. pressure-As layer after layer of sediments are deposited, the lower layers are pressed together tightly under the weight of the layers above. cementing-Some sediments are glued together by minerals dissolved in water. Some examples of sedimenta ...
Igneous Rocks - Winthrop Chemistry, Physics, and Geology
Igneous Rocks - Winthrop Chemistry, Physics, and Geology

... complex  mix  of  molten  rock  with   dissolved  gases  and  other   materials)   Magmas  that  cool  slowly  inside  the   Earth  form  plutonic  igneous  rocks.   The  mineral  crystals  in  these  rocks   are  usually  large  because ...
Metamorphic rocks form as existing rocks change.
Metamorphic rocks form as existing rocks change.

... The process in which an existing rock is changed by heat or pressure—or both—is called metamorphism (MEHT-uh-MAWR-FIHZuhm). The original sedimentary or igneous rock is called the parent rock. The resulting rock is a metamorphic rock. Even a metamorphic rock can be a parent rock for another type of m ...
Chapter 4 Rocks: Mixtures of Minerals
Chapter 4 Rocks: Mixtures of Minerals

... magma cools under the surface. The grains are large (coarse) because the upper rocks insulate the magma. • Extrusive Igneous Rock – Formed when lava cools and solidifies on the surface. They usually are formed in or around volcanoes and are fine grained or glassy (no crystals) • Activity: Draw the i ...
Metamorphic Rocks - Leigh
Metamorphic Rocks - Leigh

... a. along the interface between igneous intrusions and sedimentary bedrock b. within large lava flows c. on mountaintops that have horizontal layers containing marine fossils d. as a thin surface layer covering huge areas of the Continents 2. What is the main difference between metamorphic rocks and m ...
Exemplar Response
Exemplar Response

... Any type of rock can be made into an igneous rock if it melts. Igneous rocks come from magma, deep within Earth’s surface that has cooled. If it cools very quickly it might make pumice. If it cools very slowly, rocks with visible minerals in them. Metamorphic rocks can form from all three types of r ...
The Rock Cycle - NATSCI-A7
The Rock Cycle - NATSCI-A7

... very slowly, producing a coarse-grained texture. As a result of volcanic activity, magma (which is called lava when it reaches Earth's surface) may cool very rapidly while being on Earth's surface exposed to the atmosphere and are called extrusive or volcanic rocks. These rocks are fine-grained and ...
שקופית 1
שקופית 1

... temperature. High temperatures, pressures and abundant pore fluids result in metamorphic rocks with large mineral grains ...
Name Earth Revealed : Metamorphic Rocks 1. The process of
Name Earth Revealed : Metamorphic Rocks 1. The process of

... 3. The term _______________ refers to the original rock existing before metamorphism. For example, the original rock limestone would be metamorphosed to form marble. ...
File
File

... _magma forms__ 29. What 2 processes cause sediments to form sedimentary rocks? Compaction (pressure) and cementation 30. What kind of rock always results from the application of heat and pressure on rocks? metamorphic Part 5: Fill in the blank with the appropriate word or words: 31. All rocks are ma ...
Metamorphic Rocks
Metamorphic Rocks

...  What kind of rock is it?  After cooling it is _____________________ Slate  Very flat--____________________  Used for  ____________ ____________ and roofing  they can break along ____________ of ___________________ (cleavage) where soft, ___________ minerals like mica and chlorite grow during ...
IgPetLab6
IgPetLab6

... mixture of accumulated crystals and frozen interstitial liquid. When examining plutonic rocks, it is important to try to distinguish between minerals that are interpreted to be cumulus versus those which are post-cumulus, crystallizing from the interstitial liquid between the primary cumulus grains. ...
Metamorphic rocks
Metamorphic rocks

... Earth’s ________ is made up of rocks and minerals. Much of the crust is covered ...
Section 4: Sedimentary Rocks
Section 4: Sedimentary Rocks

... Texture depends on size and shape of its mineral crystals. Intrusive rocks have larger grains (slow cooling) Extrusive rocks have smaller grains (rapid cooling) *Porphyry is a type of rock that cools slowly and then quickly, which results in large crystals surrounded by smaller crystals. ...
File
File

... ____10. Oceanic J. Having to do with volcanoes, having to do with something angry or violent Part II: How to use our vocabulary words (all words will be used, no words will be repeated). 1-3. Sedimentary rocks often occur in layers because of the processes that form them like, _____________, when se ...
REE Glossary of Terms PDF
REE Glossary of Terms PDF

... combine  with  oxygen  from  the  air.  REEs  are  used  as  catalysts  and  other  essential  components  in  some   varieties  of  fuel  cells  (e.g.,  solid  oxide  fuel  cells).         Igneous  rocks:  Rocks  formed  when  magm ...
A good rock collection consists of selected, representative, properly
A good rock collection consists of selected, representative, properly

... Amphibole: mostly black, forms long, slender crystals with 2 cleavages at 60° and 120°. The most common member of the amphibole family is hornblende, which is easy to identify in diorite, granodiorite, and some granites. Amphibolite is a metamorphic equivalent of basalt, and can contain extremely co ...
Name: Pd
Name: Pd

... NO, METAMORPHIC ROCKS MUST BE UPLIFTED, WEATHERED, ERODED, DEPOSITION,  BURIAL, AND FINALLY COMPACTION AND CEMENTATION.  ...
Rock Cycle
Rock Cycle

... Has been formed in layers Often found near water sources With fossils from decayers Then there's IGNEOUS rock Here since Earth was born Molten Lava, cooled and hardened That's how it is formed These two types of rocks Can also be transformed With pressure, heat and chemicals METAMORPHIC they'll beco ...
Igneous Rocks
Igneous Rocks

... science notebook: ...
Rocks - SchoolRack
Rocks - SchoolRack

... igneous rocks are darkcolored and dense. – Contain iron and magnesium but very little silica – Basaltic lava flows freely from a volcano ...
Daily Science (pg. 14)
Daily Science (pg. 14)

...  When high temperature and pressure combine to alter the ...
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Igneous rock



Igneous rock (derived from the Latin word ignis meaning fire) is one of the three main rock types, the others being sedimentary and metamorphic. Igneous rock is formed through the cooling and solidification of magma or lava. Igneous rock may form with or without crystallization, either below the surface as intrusive (plutonic) rocks or on the surface as extrusive (volcanic) rocks. This magma can be derived from partial melts of pre-existing rocks in either a planet's mantle or crust. Typically, the melting is caused by one or more of three processes: an increase in temperature, a decrease in pressure, or a change in composition. Over 700 types of igneous rocks have been described, most of them having formed beneath the surface of Earth's crust.
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