Radiometric dating geochronology

30-Jun-2015 07:50

radiometric dating geochronology-34

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The passage of that time and its events (small and large) and intervals (short and long) are recorded in Earth’s rocks, particularly in stratigraphic successions and by the various lithologic, paleontologic, magnetic, and chemical signals within them.

Jan Zalasiewicz, Maria Bianca Cita, Frits Hilgen, Brian R.

of Earth Sciences, Utrecht University, Budapestlaan 4, 3584 CD Utrecht, the Netherlands 4 Dept.

of Geological Sciences, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5E2, Canada 5 Département de Géosciences, Université de Fribourg, Chemin du Musée 6, CH-1700 Fribourg, Switzerland 6 Université de Bourgogne et UMR CNRS 5661 Biogéosciences Dijon, 6 Bd Gabriel, 21000 Dijon, France 7 ETH Zrich, Geologisches Institut, Sonneggstrasse 5, 8092 Zrich, Switzerland that brings them broadly into line with current use, while simultaneously resolving the debate over whether the Geological Time Scale should have a “single” or “dual” hierarchy of units: Both parallel sets of units are retained, although there remains the option to adopt either a single (i.e., geochronological) or a dual hierarchy in particular studies, as considered appropri-ate.

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