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Despite seeming like a relatively stable place, the Earth's surface has changed dramatically over the past 4.

Mountains have been built and eroded, continents and oceans have moved great distances, and the Earth has fluctuated from being extremely cold and almost completely covered with ice to being very warm and ice-free.

Geologists have established a set of methods of absolute dating that methods of absolute dating be applied to sedimentary and volcanic rocks that are exposed at the Earth's surface to determine the relative ages of geological events preserved in the rock record.

For example, in the rocks exposed in the walls of the Grand Canyon Figure 1 there are many horizontal layers, are called strata.

Dating is here to help you find that special someone you’ve been searching for and you may even make some new friends along the way!The study of strata is methods of absolute dating stratigraphyand using a few basic principles, it is possible to work out methocs relative ages of rocks.Individual rock layers, or strata, can be seen exposed in the wall the Grand Canyon in Arizona, USA.For example, based on the primate fossil record, scientists know that living primates evolved from fossil primates and that this evolutionary history took tens of millions of years.By comparing fossils of different primate methods of absolute dating, scientists can examine how features changed and how primates evolved through time.

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