01:460:100 Study Guide - Midterm Guide: Uniformitarianism, Catastrophism, Gabbro

• School: Rutgers University
• Department: Geological Sciences
• Course: 01:460:100
• Professor: All

Document Summary

Uniformitarianism: physical processes we observe today also operated in the past and were responsible for the formation of geologic features. James hutton: believed in uniformitarianism and angular unconformities. Big bang: universe expanded from extremely dense and hot state, continues to expand today. Doppler effect: change in frequency (number of waves that pass a point in a given period of time). Solar nebula hypothesis: explains formation of the planet. 1 to 10 million years after the planet is prodced. Most common elements in whole earth: iron 35%, oxygen 30%, silicon 15%, magnesium 13%, nickel 2% Most common elements in crust: oxygen 46%, silicon 28%, aluminum 8%, iron 6%, magnesium 4% Crust: 40 km thick, ocean crust (5-8 km), continents crust (40-65 km) Mantle: 40 2900 km (silicon, oxygen, iron, magnesium) Core: 2900 6370 kms, iron and nickel, outer core is liquid (molten) ---- produces magnetic field, inner core is solid.