What Is the Best Indication of the Relative Age of a Rock Layer?

Answer

The relative age of rock layers is determined by using the law of superposition. The law is based on the assumption that layer of sediment age as you move up from the bottom. Layers formed from sedimentation and volcanic activity, it is true that that they formed successively. Nevertheless, pressure affects rocks of metamorphic origin and the law may not apply.
Q&A Related to "What Is the Best Indication of the Relative..."
blah blah blah blah.
http://wiki.answers.com/Q/What_is_the_best_indicat...
To determine the age of sedimentary rock layers,
http://www.chacha.com/question/what-is-not-used-to...
Earth has three main layers. The top layer, or crust, of the Earth is just a thin shell that sits on top of the mantle. The mantle is a very thick, mostly solid layer of rock. Inside
http://www.ehow.com/facts_7370708_layers-earth-roc...
None of these fossils could be index fossils, they have all been around a very long time. Index fossils are very widespread, but are the reamins of organisms that have been around
http://answers.yahoo.com/question/index?qid=200909...
About -  Privacy -  Careers -  Ask Blog -  Mobile -  Help -  Feedback  -  Sitemap  © 2014 Ask.com