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Science Rock Test
Science Rock Test Study Sheet
| Question | Answer |
|---|---|
| clastic rocks | breccia or conglomerate, sandstone, shale |
| organic rocks | limestone, coal |
| chemical rocks | calcite, halite, gypsum |
| foliated rocks | slate, gneiss, schist |
| non-foliated rocks | quartzite, marble |
| intrusive rocks | granite, gabbro |
| extrusive rocks | basalt, obsidian, scoria, pumice |
| mafic | dark colored |
| felsic | light colored |
| intrusive... | formed inside the earth |
| extrusive... | formed on or near the Earth's surface |
| inorganic, solid, naturally occuring, chemical formula, and other unique physical properties | a mineral |
| regional metamorphisism occurs over... | big scale |
| contact metamorphisism occurs over... | small scale |
| pebble and larger clastic rock example(s) | conglomerates and breccias |
| sand sized clastic rock example(s) | sandstone |
| silt and clay sized clastic rock example(s) | shale |
| clastic rocks are cemented or... | pressed together |
| chemical rocks come out of... | solution |
| organic rocks are from former plants or... | animals |
| sandstone + heat/pressure = | quartzite |
| shale + heat/pressure = | slate |
| limestone + heat/pressure = | marble |
| slate + heat/pressure = | schist |
| granite + heat/pressure = | gneiss |
| why is quartizite is not a mineral? | no crystal structure |
| why do marble and limestone weather in the presence of acid? | compounds of calcium carbonate reacts with acid |
| steps in the formation of coal | peat > lignite > bituminous > anthracite |
| steps in the progression from clay/mud to schist | mud > shale > slate > schist |
| why are quartzite and marble non-foliated? | foliated rocks show layering |
| what type of sedimentary rock underlies valley and ridge | limestone |
| what region of the Virginia has Karst topography? | Valley and Ridge |