Sr isotopes in interstitial waters of marine sediments from Deep Sea Drilling Project cores

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Authors:Elderfield, H.; Gieskes, J. M.
Author Affiliations:Primary:
Univ. Leeds, Dep. Earth Sci., Leeds LS2 9JT, United Kingdom
Other:
Scripps Inst. Oceanogr., United States
Volume Title:Nature (London)
Source:Nature (London), 300(5892), p.493-497. Publisher: Macmillan Journals, London, United Kingdom. ISSN: 0028-0836
Publication Date:1982
Note:In English. 27 refs.; illus. incl. table
Summary:Sr-isotopic compositions of interstitial sea-waters are documented in detail with cores from 37 DSDP sites. The 87Sr/86Sr ratios are sensitive indicators of diagenetic reactions involving alteration of volcanic matter dispersed in sediments and recrystallization of carbonates. Effects of basalt alteration reactions, except possibly for hydrothermal signals, and of alteration of continental debris, are minimal. Carbonate recrystallization has a significant effect on the geochemical mass balance of Sr, but diffusion of unradiogenic Sr from interstitial waters has only a small effect on the 87Sr/86Sr ratio of ocean water. [T.R.]
Subjects:Alkaline earth metals; Alteration; Basalts; Carbonates; Deep Sea Drilling Project; Diagenesis; Diffusion; Geochemistry; Igneous rocks; Isotopes; Marine sediments; Metals; Minerals; Oceanography; Pore water; Processes; Recrystallization; Sea water; Sedimentary petrology; Sediments; Sr-87/Sr-86; Stable isotopes; Strontium; Volcanic rocks
Abstract Numbers:84M/3028
Record ID:1984007500
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom, Reference includes data from PASCAL, Institute de l'Information Scientifique et Technique
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