Geo Lab Final Study Guide

Geo Lab Final Study Guide - Geo Lab Final Study Guide 1....

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Geo Lab Final Study Guide 1. Geologic Time Age of the earth: 4.6 Billion years old Oldest life: 3.5 GA Oldest animals: 650 MA Oldest plants: 510 MA Extinction of Dinosaurs: 65 Ma Oldest humans: 195 Ka Oldest Ice age: 10 Ka Bronze age: 5 Ka Cenozoic: 0-65, phanerozoic: 0-562 ** LOOK AT TIMELINE IN BOOK** 2. Topographic maps: a. rules for contour lines- every point on a contour line is the same elevation contour lines connect all points of equal elevation contour lines separate higher and lower elevation contour lines merge ONLY where there is a vertical cliff contour lines only cross where there is an over-hanging cliff evenly spaced contour lines represent even slope the closer the lines-the steeper the slope concentric closed contours=hill concentric closed contours with hachture marks (the --- around it) = depression or hole contour lines form a v pattern when crossing streams- the v points upstream contours repeat on opp. Sides of depression-except when it’s a slope
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This note was uploaded on 10/19/2011 for the course GEO 1050 taught by Professor Staff during the Spring '10 term at UConn.

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Geo Lab Final Study Guide - Geo Lab Final Study Guide 1....

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