GEOL 1001 Chapter : Geology
Document Summary
Atmosphere is 78. 1% nitrogen, 20. 9% oxygen, . 9% argon, and . 1% other. 99% of atmosphere is within 32 (20mi) of the surface. 97. 20% of this water in oceans, 2. 15% in ice, . 625% underground, . 025% elsewhere. Takes 3. 16x10^7 seconds for the planet to go around the sun. Mineral-a naturally occurring inorganic crystalline solid with a specific chemical structure: occurs in nature and is inorganic, crystalline solids, chemical composition and formula. Color and streak: not a useful diagnostic feature. Relative scale: talc, gypsum, calcite, fluoride, apatite, potassium feldspear, quartz, topaz, corundum, diamond. If extrusive rock sools so rapid that crystals don"t form volcanic glass. Felsic rocks are rich in feldspar and silica (quartz) Mafic rocks are poor in silica, but rich in heavier elements (mg, fe: darker in color. Intermediate, rare, least amount of silica, highest iron and magnesium, highest densities. 3000m: wet adiabetic rate (temperature of rising air drops at 5 c/1000 meters)
