Radiometric dating geochronology

Both hierarchies would remain available for use, as recommended by a formal vote of the International Commission on Stratigraphy in 2010.

Geological context helps determine the appropriate usage of the component units. 2012 DOI: 10.1130/GSATG160A.1 Geology is the natural science in which time plays a central role.

Jan Zalasiewicz, Maria Bianca Cita, Frits Hilgen, Brian R.Pratt, André Strasser, Jacques Thierry, Helmut Weissert 1 Dept.

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