GEOL 1001 : Geology Final Material
Document Summary
Climate: pleistocene ice age, 2. 5 ma-today we have had ~20 ice ages last ice age ended ~11 ka, wisconsinonian midwest got flattened, great lakes. Practice questions: b, a, a, b, c, a volcanoes, plutons, b. Hydrocarbons systems: fossil fuels (oil, natural gas, chains/rings of c and h, 4 parts , 1. Accumulate in slow moving water: clay and oxygen poor water. Heat rocks 90-160 degrees celsius chemical reactions: oil and gas, 160-250 degrees natural gas, higher than 250 carbon, migration oil moves up, more buoyant, need reservoir rock: porous and permeable (sedimentary) Pores: open spaces in rock between grains. Permeability: connectivity of pore spaces: need good permeability, 4. Trap and seal rock: seal impermeable. Energy drill/ refine hydrocarbons: drill with rotary bit, pump drilling mud in hole, 1. Tar sands: oil reserves in canada (alberta) and venezuela, sand stone with viscous tar, two tons of sandstone to make one barrel of oil, head rock to get the oil out, 3.
