Sr Isotopes in Seawater - Stratigraphy, Paleo-Tectonics, Paleoclimate, and Paleoceanography (Paperback, New Ed)

Studies of Sr isotopic composition of thousands of samples of marine sediments and fossils have yielded a curve of 87Sr/86Sr versus age for seawater Sr that extends back to 1 billion years. The ratio has fluctuated with large amplitude during this time period, and because the ratio is always uniform in the oceans globally at any one time, it is useful as a stratigraphic correlation and age-dating tool. The ratio also appears to reflect major tectonic and climatic events in Earth history and hence provides clues as to the causes, timing, and consequences of those events. The seawater 87Sr/86Sr ratio is generally high during periods marked by continent-continent collisions, and lower when continental topography is subdued, and seafloor generation rates are high. There is evidence that major shifts in the seawater ratio can be ascribed to specific orogenic events and correlate with large shifts in global climate.

General

Imprint:	Cambridge UniversityPress
Country of origin:	United Kingdom
Series:	Elements in Geochemical Tracers in Earth System Science
Release date:	March 2022
Authors:	B. Lynn Ingram • Donald J DePaolo
Dimensions:	228 x 153 x 3mm (L x W x T)
Format:	Paperback - Trade
Pages:	75
Edition:	New Ed
ISBN-13:	978-1-108-99429-3
Categories:	Books > Earth & environment > Earth sciences > Geology & the lithosphere > Geochemistry Books > Earth & environment > Earth sciences > The hydrosphere > Oceanography (seas) Books > Earth & environment > Earth sciences > Meteorology > General Books > Earth & environment > Earth sciences > Palaeontology > General
LSN:	1-108-99429-6
Barcode:	9781108994293

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