geol
Terms
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- Rhyolite
- Fine grained, light colored
- Andesite
- Fine grained, extrusive
- Basalt
- Fine grained, dark colored
- Diorite
- course grained, intrusive
- Granite
- course grained, light colored
- Cirque
- steep walled, bowl-like hollow created by glacial erosion
- Arete
- sharp, serated ridge that separates two cirques
- Horn
- sharp peak formed by collison of 3 to 4 cirques
- Moraine
- round ridge/till deposited from glacier
- Drumlin
- elongated, whale shaped hill formed of till from glacier
- Group
- two or more geographically associated formations with notable common features
- Formation
- mappable, lithologically distinct rock unit
- Member
- rock unit comprising some portion of formation
- Location of Grand Teton
- Wyoming
- Location of Great Basin
- Nevada
- Location of Death Valley
- California
- Location of Big Bend
- Southwest Texas
- Rock Types in Grand Tetons
- paleozoic limestone
- Rock Types in Great Basin
- Granite, monzonite, quartz, monzonite porphyry, pole canyon limetsone
- Rock Types in Death Valley
- igneous rocks, salt deposits
- Rock Types in Big Bend
- deformed shales, sandstones, conglomerates
- Geologic Features of Grand Tetons
- Teton fault, crystalline rocks
- Geologic Features of Great Basin
- ore bodies from mining, marine sedimentary rocks
- Geologic Features of Death Valley
- San Andreas Fault, furnace creek strike-slip fault zone, high-angle normal faults
- Geologic Features of Big Bend
- ouachita orgogeny
- Feldspar
- silicon, aluminum, oxygen
- Quartz
- silica
- Amphibole
- magnesium, iron
- Mica
- Muscovite, biotite
- Dolomite
- calcium-magnesium carbonate