Earth Sciences 2240F/G Lecture Notes - Lecture 3: Principle Of Faunal Succession, Megalosaurus, Atomic Number
9 Apr 2015
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Document Summary
Before we can age an event we must age earth. Efforts to age the earth began in europe in the middle of the 17th century with the biblical chronology of anglican archbishop james ussher (dating the creation of earth to about 4004b. c. In the maya calendar it was suggested that earth was created more than 400 million years ago; according to the hindu calendar, the present world came into existence almost 2 billion years ago. Geologists and other scientists have understood that rocks had diverse origins, and it was essential to know their relative ages to understand the processes that formed them steno"s work assisted the scientists and geologists. Shortly after archbishop ussher"s declaration (that earth was created around 4004 b. c. ) Sedimentary rock layers, or sedimentary strata (the rock bed that is formed), are deposited on top of each other.
