| Term | Definition |
|---|
| recrystallization | the process of atoms joining together differently as new bonds form |
| foliation | alignment of crystals caused by metamorphism |
| slaty foliation | low grade metamorphism of shale with fine grain size- no mica visible ex slate |
| schistos foliation | schist breaks in layers as a result of parallel growth of mica crystals |
| gneissic texture | a texture of metamorphic rocks in which dark and light silicate minerals are separated, giving the rock a banded appearance |
| igneous | rocks that form by solidification |
| intrusive | the movement of magma to a new position in earth's crust, a body of rock that was injected into surrounding rock as magma |
| extrusive | the movement of magma onto earth's surfaces |
| felsic | describes light colored minerals rich in aluminum or of rocks made by these minerals |
| mafic | describes dark colored minerals rich in magnesium |
| lava | melted rock coming from a volcano or such rock that has cooled or hardened |
| magma | hot liquid rock within earth |
| texture | the surface characteristics of a rock that are a result of size, shape, and arrangement of mineral grains |
| porphyry | any igneous rock with crystals embedded in a finer groundmass of minerals |
| clastic | sedimentary rocks that are composed of weathered remains of other rocks; fragmental |
| lithification | converts sediment into rock. Compaction caused by pressure generated from weight of overlying sediment. Cementation is binding of sediment by mineral agents. Common cementing agents hematite, limonite, calcite and silica |
| veneer | a thin outer layer a surface appearance or decoration to cover with a thin layer |
| cementation | The process by which dissolved minerals crystalize and glue particles of sediment together into one mass. |
| compaction | act of compacting minerals together |
| precipitation (from solution) | settlinig of solids from soultion, often the result of evaporation of seawater |
| organic | relating or belonging to the class of chemical compounds having a carbon basis |
| fossiliferous | bearing or containing fossils |
Combine with other sets
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