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Definition
| is a naturally occurring solid aggregate of one or more minerals. |
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| is the scientific study of rocks |
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Definition
hardening and crystallization of magma or molten material that
originates deep within the earth. |
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Definition
forms when magma makes its way to Earth’s surface
as lava and then cools. The crystals are very small (fine grained) since the cooling
process is fast. |
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Definition
It cools slowly beneath the Earth surface and are created by
magma. The intrusive igneous rocks have very large crystals (coarse grained). |
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Term
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Definition
FELSIC
MAFIC
INTERMEDIATE
ULTRAMAFIC |
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Term
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Definition
Aphanistic
Phaneritic
Porphyritic
Glassy
Pyroclastic |
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Definition
| light in color; feldspar and silicates |
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Definition
| dark in color; made up of magnesium and iron |
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Definition
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Definition
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Definition
| large crystals with small crystals |
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Definition
| non-ordered solid from rapid quenching |
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Definition
| composite of ejected fragments |
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Definition
provide information about surface conditions that existed in the
Earth’s past. |
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Definition
formed from accumulation of clasts: little pieces of broken
rocks and shells. Examples: conglomerate, breccia, sandstone, shale |
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Definition
| formed when dissolved minerals precipitate from a solution. |
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Definition
| rocks formed from the accumulation of animal debris |
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Definition
forms from pre-existing rocks: either metamorphic, igneous,
sedimentary |
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Definition
| transformation of one rock type into another. |
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Definition
| due to changes in pressure and temperature over large region of the crust |
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Definition
| mainly by heat due to contact with magma |
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Definition
| refers to the size arrangement ad grains within the rock. |
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Definition
any planar arrangement of mineral grains or structural features within the
rock. |
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