geochronometry


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geochronometry

[¦jē·ō·krə′näm·ə·trē]
(geology)
The study of the absolute age of the rocks of the earth based on the radioactive decay of isotopes, such as 238U,235U,232Th,87Rb,40K, and 14C, present in minerals and rocks.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
General topics include basic principles of atomic physics, including nuclear systematics decay modes of radionuclides, radioactive decay and geochronometry, radiogenic isotope geochronometers, including a complete range of methods, the geochemistry of radiogenic isotopes, including igneous rocks, water, and sediment, and the oceans, short-lived radionuclides, and fractionation of stable isotopes.
Therefore, one can say that there is a direct proportionality between the spacevelocity expansion of, let say, Virgo galaxy and the Earth geochronometry. Table 1 displays the calculation of the Earth's radial expansion using the formula represented above [17]:
Furthermore, the Earth geochronometry data may enable us to verify the cosmological theories with unprecedented precision.