Dating techniques in geomorphology

The current table of contents is listed below, articles are allocated on a first come basis. Items with links are completed sections which are now downloadable. New dating methods are invented all the time, however, most have practical limitations.Geologic research and mapping requires the determinations of the ages and composition of rocks.Geochronology is the science of dating and determining the time sequence of events in the history of the Earth.This web page provides an overview of selected geochronology methods used by USGS scientists.

Each article should be approximately 2000 – 3000 words in length, outlining the current methods utilised in your specialist area and will be peer reviewed by at least 2 specialists in the field. A geologic map or report typically is only a summary of investigations that frequently involve the collecting and processing of hundreds of rock samples, followed by the evaluation and interpretation of data from a variety of analytical techniques.A relative age is the age of a fossil organism, rock, or geologic feature or event defined relative to other organisms, rocks, or features or events rather than in terms of years.Relatively young deposits can be sometimes dated using tree rings, varved-lake sediments, coral growth patterns, and other methods.Paleontology is the study of life in past geologic periods (fossil plants and animals), incorporating knowledge of an organism's phylogeny, relationships to existing organisms, and correlation to an established chronology of Earth History.

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