Metamorphic rocks - Study guides, Revision notes & Summaries

When does metamorphism occur? What does metamorphism include? Meta. rocks compare to Ig. and Sed. rocks? Does Metamorphism have a solid/not solid state? What are these two types of changes? - ANSWERSOccurs at elevated temperature and pressure, typically at the base of mountains Includes Recrystallization, making new minerals from original minerals, and sometimes, changes in the texture of the Parent Rock (protolith). Metamorphic rocks are organized compared to Igneous and Sedim...

metamorphic - ANSWERS"of changed form" metamorphic rocks - ANSWERSrocks changed from one form to another by intense heat, intense pressure, or the action of hyrdothermal fluids protolith - ANSWERSparent rock: the rock type that was metamorphosed ie: igneous, sedimentary, metamorphic metamorphic grade - ANSWERSthe intensity of metamorphism from low grade (least intense) to high grade (most intense) serentinite - ANSWERSmetamorphosed from mafic and ultramafic igneous rocks met...

metamorphic rocks - ANSWERSrocks changed from one form to another by intense heat, intense pressure, or the action of watery hot fluids parent rock - ANSWERSthe rock type that was metamorphosed. parent rocks can be any of the three main rock types: igneous rocks, sedimentary rock, or even metamorphic rock sedimentary conglomerate, sandstone, and limestone - ANSWERSmetaconglomerate, quartzite, and marble shale - ANSWERSslate, phyllite, schist, and gneiss hornfels - ANSWERSformed only ...

Marble is a metamorphic rock that forms from a __________ protolith? - ANSWERSlimestone Which of the following processes will cause metamorphism? - ANSWERSan increase in pressure, interaction with hydrothermal fluids, an increase in temperature (all) What is metasomatism - ANSWERSa change in the bulk composition of a rock during metamorphism Where does sea floor metamorphism take place? - ANSWERSin close proximity to mid-ocean spreading centers What is the relation between metamorphi...

Compared to low-grade metamorphic rocks, high-grade rocks _____. - ANSWERSare produced at greater temperatures and pressures Metamorphism may be induced by _____. - ANSWERScontact with a hot pluton contact with hot groundwater heat and pressure associated with deep burial ! All of the above are correct. Two common metamorphic rocks that typically lack foliation are _____. - ANSWERSquartzite and marble Which of the following can cause metamorphism? - ANSWERSincreases in temperature i...

________ is the process where a rock changes form or mineral content as a result of environmental changes such as heat and pressure. - ANSWERSMetamorphism What is the definition of a parent rock? - ANSWERSThe rock that was altered by metamorphism Which of the following is the parent rock for quartzite? -Sandstone -Granite -Conglomerate -Limestone - ANSWERSSandstone Which low-grade metamorphic rock will display fine rock cleavage and contains very fine grains of mica? - ANSWERSSlate ...

contact metamorphism - ANSWERSoccurs when a magma chamber intrudes the surrounding rock; the heat from the magma metamorphoses the surrounding rock regional metamorphism - ANSWERSoccurs when pressure builds up in rock that is buried deep below other rock formations or when large pieces of the Earth's crust collide with each other (the increased pressure and temperature causes rock to become deformed and chemically changed) Metasomatism - ANSWERSVery hot, element-rich waters cause metamo...

Identify the False statement. Hydrothermal fluids...(D) - ANSWERSA) May consist of hot water, steam, and supercritical fluid. B) Are chemically active solutions, not pure water C) Can be derived from groundwater or magma, or can be the product of metamorphic reactions D) Change a rock's chemical composition, a process known as exhumation. Which of the following statements is False? A metamorphic rock...(B) - ANSWERSA) May develop a texture of interlocking grains B) Cannot be formed bel...

foliation - ANSWERSSlaty cleavage, schistosity, and compositional banding are all examples of ___________. slaty - ANSWERS______ cleavage: parallel foliation of fine-grained platy minerals; produces the rocks slate and phyllite. schistosity - ANSWERS________ - the layering in a coarse grained, crystalline rock platy - ANSWERSMuscovite and Biotite are an example of _______ mineral grains. gneiss - ANSWERSMineral Banding (________) - The layering in a rock in which bands or lenses of G...

Foliation - ANSWERS* Planes of minerals formed in response to stress * A feature of many metamorphic rocks * crystals rearrange into layered planes depending on the type and orientation of the stress during metamorphism Foliation planes are recognized by: - ANSWERS* The preferred orientation of minerals * alternating bands of different minerals * the flattening and stretching of minerals * foliation forms by physical rotation of preexisting minerals Non-foliated rocks are named primarily a...