EOSC 314 Lecture 2: EOSC 314: Geologic Time Scale and Bathymetry
6 Oct 2017
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Precambrian: hadean, paleozoic, cambrian, ordovician, silurian, devonian, carboniferous, permian, archean, early, middle, late, proterozoic, early, middle, late. Phanerozoic: paleozoic, cambrian, first organisms with shells, ordovician, first fish, silurian, first land plant, devonian, first insects, carboniferous, mississippian. Large coal swamps: permian, first reptiles, mesozoic, triassic, 90% of rine life dies, first dinosaurs, jurassic, first birds, first slowering plants, cretaceous, cenozoic, tertiary, dino extinct and many other creatures, quaternary, humans. More then half of the earth"s ocean space. Deepest ocean as well: atlantic ocean. Separates old world from new world: indian ocean. Primarily in the southern hemisphere: arctic ocean. Permanent layer of ice few meters thick cover: southern or antarctic ocean. Strong currents on this ocean separate the: they are all connected waters. Comparing oceans to continents: ocean is deeper than the land is thick, average ocean depth is 3682 meters, average continental elevation is 840 meters, deepest ocean trench is marianas trench at 11022 meters, highest continental mountain is mt.
