Cosmogenic dating definition

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These isotopes are produced within Earth materials such as rocks or soil, in Earth's atmosphere, and in extraterrestrial items such as meteorites.By measuring cosmogenic isotopes, scientists are able to gain insight into a range of geological and astronomical processes.The LDEO Cosmogenic Nuclide Group develops terrestrial cosmogenic nuclide techniques and applies those as chronometers and tracers in the Earth Sciences.

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Some of these radioisotopes are tritium, carbon-14 and phosphorus-32.

Here is a list of radioisotopes formed by the action of cosmic rays; the list also contains the production mode of the isotope.

Surface exposure dating is a collection of geochronological techniques for estimating the length of time that a rock has been exposed at or near Earth's surface.

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'cosmogenic.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors.

Cosmogenic nuclides (or cosmogenic isotopes) are rare nuclides (isotopes) created when a high-energy cosmic ray interacts with the nucleus of an in situ Solar System atom, causing nucleons (protons and neutrons) to be expelled from the atom (see cosmic ray spallation).

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