The University of Southampton
University of Southampton Institutional Repository

Reconstructing past seawater Mg/Ca and Sr/Ca from mid-ocean ridge flank calcium carbonate veins

Reconstructing past seawater Mg/Ca and Sr/Ca from mid-ocean ridge flank calcium carbonate veins
Reconstructing past seawater Mg/Ca and Sr/Ca from mid-ocean ridge flank calcium carbonate veins
Proxies for past seawater chemistry such as Mg/Ca and Sr/Ca ratios provide a record of the dynamic exchanges of elements between the solid Earth, atmosphere and hydrosphere, and the evolving influence of life. Here, we estimate past oceanic Mg/Ca and Sr/Ca ratios from suites of 1.6 to 170-million-year-old calcium carbonate veins precipitated from seawater-derived fluids in ocean ridge flank basalts. Our data indicate that prior to the Neogene, oceanic Mg/Ca and Sr/Ca were lower than in the modern ocean. Decreased ocean spreading since the Cretaceous and the resulting slow reduction in ocean crustal hydrothermal exchange throughout the early Tertiary may explain the recent rise in these ratios.
0036-8075
1114-1117
Coggon, Rosalind M.
09488aad-f9e1-47b6-9c62-1da33541b4a4
Teagle, Damon A.H.
396539c5-acbe-4dfa-bb9b-94af878fe286
Smith-Duque, Christopher E.
72820fa7-dd47-4a64-8310-68d35b2973e8
Alt, Jeffrey C.
d2e22a46-a2e0-4d56-abbb-37199de80dbc
Cooper, Matthew J.
54f7bff0-1f8c-4835-8358-71eef8529e7a
Coggon, Rosalind M.
09488aad-f9e1-47b6-9c62-1da33541b4a4
Teagle, Damon A.H.
396539c5-acbe-4dfa-bb9b-94af878fe286
Smith-Duque, Christopher E.
72820fa7-dd47-4a64-8310-68d35b2973e8
Alt, Jeffrey C.
d2e22a46-a2e0-4d56-abbb-37199de80dbc
Cooper, Matthew J.
54f7bff0-1f8c-4835-8358-71eef8529e7a

Coggon, Rosalind M., Teagle, Damon A.H., Smith-Duque, Christopher E., Alt, Jeffrey C. and Cooper, Matthew J. (2010) Reconstructing past seawater Mg/Ca and Sr/Ca from mid-ocean ridge flank calcium carbonate veins. Science, 327 (5969), 1114-1117. (doi:10.1126/science.1182252).

Record type: Article

Abstract

Proxies for past seawater chemistry such as Mg/Ca and Sr/Ca ratios provide a record of the dynamic exchanges of elements between the solid Earth, atmosphere and hydrosphere, and the evolving influence of life. Here, we estimate past oceanic Mg/Ca and Sr/Ca ratios from suites of 1.6 to 170-million-year-old calcium carbonate veins precipitated from seawater-derived fluids in ocean ridge flank basalts. Our data indicate that prior to the Neogene, oceanic Mg/Ca and Sr/Ca were lower than in the modern ocean. Decreased ocean spreading since the Cretaceous and the resulting slow reduction in ocean crustal hydrothermal exchange throughout the early Tertiary may explain the recent rise in these ratios.

Full text not available from this repository.

More information

Published date: 26 February 2010
Organisations: Ocean and Earth Science

Identifiers

Local EPrints ID: 72312
URI: http://eprints.soton.ac.uk/id/eprint/72312
ISSN: 0036-8075
PURE UUID: 7ffa2a65-f55c-4641-8997-ba359cd4570c
ORCID for Rosalind M. Coggon: ORCID iD orcid.org/0000-0002-9228-9707
ORCID for Damon A.H. Teagle: ORCID iD orcid.org/0000-0002-4416-8409
ORCID for Matthew J. Cooper: ORCID iD orcid.org/0000-0002-2130-2759

Catalogue record

Date deposited: 05 Feb 2010
Last modified: 17 Dec 2019 01:53

Export record

Altmetrics

Contributors

Author: Christopher E. Smith-Duque
Author: Jeffrey C. Alt

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×