Question | Answer |
What is the rock cycle? | all rock type can change into each other. ( sedimentery, igneous, metamorphic) |
bowen reaction series | why certain types of mineral sare found togethers and others arn't |
porphyritic | large crystal sin igneous rocks |
vesicular | extrusive structures in glassy igneous |
felsic | light |
mafic | dark |
grain size | the faster it cools the smaller the grains |
intrusions | inside the earth |
extrusions | out sid ethe earth |
granite | hard igneous rock mostly quartz, mica and feldspar |
obsidian | hard dark gaslike volcanic rock |
basalt | dark fine grained volcanicn rock |
pumice | very light and porus volcanic rock |
compacction | minerals are squeezed together |
cementation | glued together by minerals in water |
chemical sedimentary rocks | precipitation of minerals by water |
organic sedimentary rocks | rocks formed form the remains of organisms |
clastic sedimentary rocks | composed of fragments of already existing rocks |
angularity | smoothness of particles |
halite | rock salt |
coal | sedimentary rock |
limestone | sedimentary rock mostly formed of fragments of marine organsims fossils |
shale | fine grained clastic sedimentary rock |
sandstone | clastic sedimentary rock composed of fine grains |
conglomerate | course garined sedimentary rock made of round fragments |
breccia | rocks with angular fragments cemented together |
contact metamorphism | metamorphism that comes in contact with anigneous intrusion |
regional metamorphism | affecting rocks over a large scale area from heat and pressure |
lithosphere | outside of the earth consisting of the crust and uppoer mantle |
athenosphere | upper layer of the matle beneath the litheospher |
slate | fine grained gray, green or blush metamorphic rocks that can be easliy split apart |
schist | course grained metamorphic that consits of layers of different layers. |
Gneiss | metamorphic rock with banded structure |
Quartzite | extremely compact hard ganular rock |
Marble | hard crystaline metamorphic form of limestone |
divergent boundry | two boundries moving away from each other |
convergent boundry | one plate moves over another |
transform boundry | slide from the side |
subduction zones | zones where plates collide |
evidence of plate boundries | similar fossils on continents far away from each other |
examples of plate boundries | Mid ocean ridge, san andreas fault |