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Sr isotopes in seawater = stratigraphy, paleo-tectonics, paleoclimate, and paleoceanography /

Record Type:	Electronic resources : Monograph/item
Title/Author:	Sr isotopes in seawater/ B. Lynn Ingram, Donald J. DePaolo.
Reminder of title:	stratigraphy, paleo-tectonics, paleoclimate, and paleoceanography /
Author:	Ingram, B. Lynn,
other author:	DePaolo, Donald J.,
Published:	Cambridge :Cambridge University Press, : 2022.,
Description:	23 p. :ill., digital ;23 cm.
Notes:	Title from publisher's bibliographic system (viewed on 21 Mar 2022).
Subject:	Seawater - Composition. -
Online resource:	https://doi.org/10.1017/9781108991674
ISBN:	9781108991674

Sr isotopes in seawater = stratigraphy, paleo-tectonics, paleoclimate, and paleoceanography /
Ingram, B. Lynn,1961-

Sr isotopes in seawaterstratigraphy, paleo-tectonics, paleoclimate, and paleoceanography /[electronic resource] :B. Lynn Ingram, Donald J. DePaolo. - Cambridge :Cambridge University Press,2022. - 23 p. :ill., digital ;23 cm. - Cambridge elements. Elements in geochemical tracers in Earth system science,2515-7027. - Cambridge elements.Elements in geochemical tracers in Earth system science..

Title from publisher's bibliographic system (viewed on 21 Mar 2022).

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.

ISBN: 9781108991674Subjects--Topical Terms:

1641165
Seawater
--Composition.

LC Class. No.: GC111.2 / .I64 2022

Dewey Class. No.: 551.4601

Sr isotopes in seawater = stratigraphy, paleo-tectonics, paleoclimate, and paleoceanography /
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520 $a 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.
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