01:460:100 Study Guide - Final Guide: Orbital Eccentricity, Axial Tilt, Greenhouse Gas

• School: Rutgers University
• Department: Geological Sciences
• Course: 01:460:100
• Professor: J E R R Y Delaney

Document Summary

Greenhouse gases: greenhouse gas = it traps heat in the earth"s atmosphere much like glass traps heat in a greenhouse, water vapor, carbon dioxide (co2), methane (ch4), nitrous oxide (n2o, and ozone (o3). 41,000 years: precession of earth"s axis = motion or wobble of earth"s axis. Star, but 12,000 years ago the axis pointed to vega, a different star. Heat transfer drivers: carbon dioxide driver for global factors, heat transfers from poles. Why is wegener important: wegener = a german meteorologist and polar explorer wrote the origins of oceans and continents in 1915, hypothesized the supercontinent he named pangaea, collected evidence for continental drift. What demonstrates seafloor spreading: seafloor spreading = as continents move apart new ocean floor forms, fit of the continents, past glaciations, climatic belts, fossil distribution, matching geologic units. Source of magnetic field is due to flow of material in the liquid outer core: the magnetic axis is not parallel with the rotational axis, preserved in rocks.