Monday, January 24, 2011

Blog 3: Class Response

I found today's science class very intriguing, although very confusing. Someone came in and informed us on his work in Egypt's Valley of the Kings and how to date fossils and rocks. The Stratigraphic Laws are the ways you use to give rocks a relative age. These include horizontality, superposition, intrusions or faults, and inclusions. Each one of these is a different law you can use to date rock. You can also do this with layers of rocks, just like the examples we did in class. In addition to giving rocks a relative age, you can also give a fossil a relative age based on what layer of the rock it is found in. We use all of this today to determine what Earth was like millions of years ago. I found all the things we did in class quite fascinating. Paleontology and geology are very unique fields to work in.

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