A | B |
batholith | large puton of intrusive igneous rock forming the core of a mountain |
cementation | process by which particles are bound as minerals fill in spaces |
chemical rock | formed by precipitation of minerals from solution caused by evaporation or chemical action |
clastic rock | formed from fragments of other rock moved and collected by running water |
contact metamorphism | hot magma moves into existing rock heating and changing it |
deform | heat from friction stress pressure causes a rock to change shape |
deformational metamorphism | occurs at low temperatures caused by pressure caused by stress and friction |
dike | intrusive rock that crosses through existing rock layers via cracks |
extrusive rock | magma cools quickly on surface with fine grain texture of small crystals |
felsic | thick slow moving magma with large amounts of silica forms quartz and orthoclase feldspar |
foliation | wavy parallel bands characteristic of metamorphic rocks |
fossil | remains impression evidence of plant or aninmal remains preserved in rock |
geode | spheres of silca rock lined with crystals formed of dissolved minerals |
gneiss | metamorphized granites and conglomerates |
granite | coarse grained intrusive igneous rock |
igneous rock | formed by cooling and hardening of hot molten rock |
intrusive rock | magma cools beneath slowly surface with coarse grain texture of large crystals |
mafic | thinner more fluid magma with large amounts of iron & magnesium forms horneblend and biotite |
magma | hot molten rock |
marble | metamorphized limestone |
metamorphic rock | formed by effect of heat and pressure on other rocks |
metamorphism | process by which rock structure is changed by pressure heat and moisture |
obsidian | quick cooled glassy extrusive volcanic rock |
organic rock | forms from sediments of the remains of plants and animals |
pluton | igneous intrusions formed when magma cools inside Earth |
pumice | quick cooled extrusive rock hardened as steam and gases bubbled |
quartzite | metaqmorphic sandstone |
regional metamorphism | occurs during mountain building movements of crust |
rock | group of minerals bound together |
rock cycle | repeated series of events by which rock gradually and continually cahnges |
schist | metamorphized shales and basalts |
sediment | materials such as rock fragments plant and animal remains that settle out of water |
sedimentary rock | formed by compaction and cementation of layers of sediments |
sill | intrusive rock that runs parallel to existing rock layers via cracks |
slate | metamorphized shale |
stratification | arrangement of sedimentary rock in visible layers |