GEOL 101 Midterm: Geology Test 1
Document Summary
1. 1) geology: the science of earth: physical geology- examines the materials earth is composed of, historical geology- origin and development of earth. 1. 2) the development of geology: catastrophism- earth"s landscapes are created by great catastrophes, james ussher. B. uniformitarianism- the physical, chemical and biological laws that operate today have also operated in the past: the present is the key to the past, hutton. 1. 4) earth"s spheres: hydrosphere- dynamic mass of water continually moving from ocean to atmosphere to rain, atmosphere- life-giving gaseous envelope, biosphere- all the life on earth (bacteria, plants, animals, geosphere- the solid earth. (interior and the soil) 1. 7) earth"s internal structure: earth"s crust relatively thin and rocky outer skin a, oceanic crust is thinner and made of basalt. denser c. continental is thicker and made of granitic rock. 1. 8) rocks and rock cycle: magma is molten rock that forms deep beneath earth"s surface.
