What is the age of the oldest rocks? What do we call a method or depiction of the Earth’s age and geologic history using both a sequence of rock strata (their relative age) and their absolute ages? Which methods determine Absolute Ages?

Name: Geography 1111 Lecture 22 Notes
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Geography 1111 Lecture 22 Notes Info to know:  The age of the oldest rocks: 4 billion years old  The oldest sea floor: 200 million  The beginning and ending of each of the eras o 520- 250 o 250- 65 o 65- current  Tertiary (2 million) and quaternary (currently in)  The top two epoch’s  Geologic Time Scale: a method or depiction of the Earth’s age and geologic history using both a sequence of rock strata (their relative age) and their absolute ages o It is thus both a relative time scale and an absolute time scale and is governed by uniformitarianism o It assumes superposition, the idea that younger rocks and sediments are near the top of a formatio