GEOL 1001 Chapter : Geology Notes For Test 3 2017
Document Summary
Geology notes for test 3 2017: over the past 2 million years, huge ice sheets and glaciers intermittently covered large areas of the northern and southern hemisphere. Lateral moraine: forms along the sides of a glacier and is expressed as a dark fringe of rocks and other debris. The upper part of the glacier therefore flows faster than the lower part, causing internal shearing within the glacier. Ice is less dense than fresh water or salt water: decreased sunspot activity: climate cools slightly, release of co2 and ch4 into the atmosphere: more greenhouse gases tend to warm the. Increased snow and ice cover on earth: increased albedo makes a cooler climate. planet. 100,000 years: less eccentricity: earth"s orbit is more circular, cycles last about 100,000 years. Due to technical challenges, gas hydrate is not currently used for energy but it could represent an important future resource as oil reserves become depleted.
