Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/61503
Citations | ||
Scopus | Web of Science® | Altmetric |
---|---|---|
?
|
?
|
Type: | Journal article |
Title: | The influence of volcanic ash alteration on the REE composition of marine pore waters |
Author: | Schacht, U. Wallmann, K. Kutterolf, S. |
Citation: | Journal of Geochemical Exploration, 2010; 106(1-3 Sp Iss):176-187 |
Publisher: | Elsevier Science BV |
Issue Date: | 2010 |
ISSN: | 0375-6742 1879-1689 |
Statement of Responsibility: | Ulrike Schacht, Klaus Wallmann and Steffen Kutterolf |
Abstract: | Two volcanic ash layer dominated marine gravity cores were recovered during research cruise RV Sonne 173/3 along the Pacific margin offshore Nicaragua. Thick ash layers dominate the recovered sediments. Pore water samples of these - one incoming plate and one slope site - sediment cores have been analysed for light rare earth elements, alkalinity, sulphate, phosphate, ammonia, calcium, and manganese contents.The data provide a systematic look at changes in REE during diagenesis proceeding from open ocean sediments to highly reducing near-shore sediments. The pore water patterns of all the dissolved species mentioned above suggest that volcanic glass alteration constitutes a major source for REE release in marine sediments when low rates of anaerobic degradation of organic matter, like typical for incoming plate/open ocean sediments, prevail. Under these conditions the release of REE results in fluxes of at least 0.04nmolLacm-2yr-1 and 0.09nmolCecm-2yr-1. © 2010 Elsevier B.V. |
Rights: | © 2010 Elsevier B.V. |
DOI: | 10.1016/j.gexplo.2010.02.006 |
Published version: | http://dx.doi.org/10.1016/j.gexplo.2010.02.006 |
Appears in Collections: | Aurora harvest Australian School of Petroleum publications |
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.