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Rock and Mineral Vocabulary
Refer to ESRT's for word sources
14
Science
9th Grade
10/31/2009

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Cards

Term
Clastic Texture
Definition
Rock is composed of fragments from weathered and eroded rocks.
Term
Foliated
Definition
Metamorphic minerals are aligned in the same direction.
Term
Plutonic
Definition
Igneous rock's environment of formation was underground,the rock is coarse grained.
Term
Regional Metamorphism
Definition
Metamorphism caused by heat and pressure over a large area.
Term
Contact Metamorphism
Definition
Metamorphism caused by heat only;commonly associated with igneous intrusions.
Term
Bioclastic
Definition
Shell fragments(clastic) of once living (bio) organisms.
Term
Banding
Definition
Metamorphic foliation so intense minerals separated into compositional bands.
Term
Vesicular
Definition
gas pockets in an igneous rock.
Term
Solidification
Definition
the process of lava or magma hardening into a rock.
Term
Cementation
Definition
process of sedimentary grains being cemented together by subsurface fluid precipitates.
Term
Weathering & Erosion
Definition
When rocks are broken up (weathering) and their fragments transported. (erosion).
Term
Intrusive
Definition
Igneous rock which cooled "In the ground"..slow cooling,large crystals.
Term
Extrusive
Definition
Igneous rock which cooled on the surface..fast cooling, small grains.
Term
Diabase
Definition
Igneous Rock which began to cool in the ground (intrusive)but finished cooling on the surface (extrusive).
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