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.
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.