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Ch. 3 Rocks
Terms in this set (41)
An igneous rock composition between felsic and mafic.
Dark colored silicate minerals rich in magnesium and iron.
Bowens Reaction Series
Shows the order of mineral crystallization and composition of rocks.
Chemical Sedimentary Rock
Form when minerals precipitate from a solution or settle from a suspension.
Slow cooling results in large crystals
A change in the texture, structure or chemical composition of a rock due to contact with magma.
The process by which magma cools and solidifies.
A process that occurs when the earlier-formed minerals are denser than the liquid portion and sink to the bottom of the magma chamber.
Detrital Sedimentary rock
Rocks that form from the accumulation of materials that originate and are transported as solid particles derived from both mechanical and chemical weathering.
A deposit of ore minerals that is scattered through volumes of rock much larger than a vein.
Rock that forms from crystals precipitating during evaporation of water.
Igneous rock that forms from lava on Earth's surface
Describes magma or igneous rock that is rich in feldspars and silica and that is generally light in color
The texture of igneous rocks that cool very quickly.
The preserved remains or traces of organisms that once lived on earth.
Mineral crystals that are flatted and lined up
Igneous rocks consisting of material that cooled too quickly for crystals to form.
A compositional group of igneous rock that that indicates a rock is composed almost entirely of light colored silicates
Hot water solutions escaping from magma
A type of rock that forms from the cooling of molten rock at or below the surface.
The surface beneath subduction zones and create large plutonic bodies composed of coarse- grained igneous rock
Liquid magma that reaches the surface. Igneous rock is formed when liquid lava hardens.
The process that converts sediments into solid rock by compaction or cementation.
Describes magma or igneous rock that is rich in magnesium and iron and that is generally dark in color.
Hot fluid or semi-fluid material below or within the Earth's crust from which lava and other igneous rock is formed by cooling.
A process by which rocks of varying composition can arise from a uniform parent or magma.
A type of rock that forms from an existing rock that is changed by heat, pressure, or chemical reactions.
The process in which one type of rock changes into metamorphic rock because of chemical processes or changes in temperature and pressure
The texture of metamorphic rock in which the mineral grains are not arranged in planes or bands
A light igneous rock that is very coarse-grained
A rock with large crystals scattered on a background of much smaller crystals
Metamorphism over a wide area below the crust caused by huge movements of the Earth's crust
Life cycle of a rock
A type of rock that forms when particles from other rocks are pressed and cemented together.
Forms when sediments are compacted and cemented together or when minerals form from solutions.
Horizontal layers of sediment.
The way a rock feels
Metamorphism caused by heat conducted into a rock from an igneous intrusion.
Igneous rocks such as peridotite that are composed almost entirely of dark silicate minerals have this chemical composition
A metal-rich accumulation of mineral matter that occurs along a fracture or bedding plane.
Igneous rock that forms when magma hardens beneath Earth's surface.
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