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Rocks - Coggle Diagram
Rocks
Metamorphic Rocks
The original rock is subjected to temperatures greater than 150 to 200 °C and, often, elevated pressure of 100 megapascals or more, causing profound physical or chemical changes.
Metamorphic rocks arise from the transformation of existing rock to new types of rock, in a process called metamorphism
Sedimentary
types of rock that are formed by the accumulation or deposition of mineral or organic particles at Earth's surface, followed by cementation.
are formed on or near the Earth's surface
Rock Cycle
an idealized cycle of processes undergone by rocks in the earth's crust, involving igneous intrusion, uplift, erosion, transportation, deposition as sedimentary rock, metamorphism, remelting, and further igneous intrusion.
Felsic
relating to or denoting a group of light-colored minerals including feldspar, feldspathoids, quartz, and muscovite.
Mafic
relating to, denoting, or containing a group of dark-colored, mainly ferromagnesian minerals such as pyroxene and olivine.
Foliated
Foliation in geology refers to repetitive layering in metamorphic rocks.
Intrusive
is formed when magma penetrates existing rock, crystallizes, and solidifies underground to form intrusions, such as batholiths, dikes, sills, laccoliths, and volcanic necks.
Geology
the science that deals with the earth's physical structure and substance, its history, and the processes that act on it.
Clast
a constituent fragment of a clastic rock.
Igneous
Igneous rock is formed through the cooling and solidification of magma or lava. The magma can be derived from partial melts of existing rocks in either a planet's mantle or crust.
Extrusive
relating to or denoting rock that has been extruded at the earth's surface as lava or other volcanic deposits.
Mineral
a solid chemical compound with a fairly well-defined chemical composition and a specific crystal structure that occurs naturally in pure form.