Geography 1400F/G Lecture : Geography Lecture #1 - September 12 - 19 2013.docx
27 Jan 2014
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Slide #1 chauvet cave painting first known instance of human art 30,000 years old in southern france. This was at a time when france was much warmer. Slide #2 this was a period in earth history when glaciers were advancing in europe. This was a time of much lower sea levels that have exposed parts of the continental shelf and allowed for migration. Slide #3 london at this time was buried under ice (at least 1km). This glacial maximum covered much of north america. Something odd about the map russia, north america and. Greenland were attached - continental shelf was exposed. Earth history has evolved over long periods of time. Slide #4 the earth is about 4. 6 billion years old. And its origins are the crystallization of dust and gases. Powering the earth"s climate system is the sun. The earth"s temperature is derived from the sun but also the atmosphere which surrounds us.
