GEOL 1001 Chapter : Chapter 11 12 13 Notes
Document Summary
Phanerozoic eon - review: phaneros = visible; zoic = life. Pangea: interiors of continents flooded (sea-level rise), diversification of life into complex forms, first in the sea, then later on land, 90% of paleozoic marine biota disappeared during the. K-t boundary event in which a meteorite impact caused a mass extinction. There are five fundamental sources of energy: nuclear fusion in the sun, the pull of gravity, nuclear fission reactions, energy in the interior of the earth, energy stored in chemical bonds. Hydrocarbons: oil and gas traps and seals, anticlinal, salt dome, fault, stratigraphic. Sedimentary ore deposits: redbeds (red from iron-oxides) don"t appear before 2. 2 ga, banded iron formations (bifs) fe dissolved in the ocean reacted with o2, forming worldwide iron oxide deposits. Slope hazards - review: various features of the landscape, as well as detailed measurements by satellites, may help geologists identify unstable slopes and send out warnings, systematic study allows production of landslide-potential maps.
