Datingin geologydetermining a chronology or calendar of events in the history of Earthusing to a large degree the evidence of organic evolution in the sedimentary rocks accumulated through geologic time in marine and continental environments. To date past events, processes, formations, and fossil organisms, geologists employ a variety of techniques. These include some that establish a relative chronology in which occurrences can be placed in the correct sequence relative to one another or to some known succession of events. Radiometric dating and certain other approaches are used to provide absolute chronologies in terms of years before the present.
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Start studying relative dating. In absence of absolute age of stratigraphic. Rind thickness, sometimes replacing the radiometric age, both using the age dating.
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