Origin of authigenic carbonates in sediment from the deep Bering Sea
ABSTRACT Forty beds of authigenic carbonate were identified from the deep Bering Sea in cores taken on Leg 19 of the Deep Sea Drilling Project. Carbonate minerals were mainly high‐magnesium calcite and protodolomite, less commonly siderite, rhodo‐chrosite, low‐magnesium calcite, and manganosiderite....
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crwiley:10.1111/j.1365-3091.1979.tb00937.x 2024-09-30T14:33:06+00:00 Origin of authigenic carbonates in sediment from the deep Bering Sea HEIN, JAMES R. O'NEIL, JAMES R. JONES, MARJORIE G. 1979 http://dx.doi.org/10.1111/j.1365-3091.1979.tb00937.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-3091.1979.tb00937.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-3091.1979.tb00937.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Sedimentology volume 26, issue 5, page 681-705 ISSN 0037-0746 1365-3091 journal-article 1979 crwiley https://doi.org/10.1111/j.1365-3091.1979.tb00937.x 2024-09-17T04:50:09Z ABSTRACT Forty beds of authigenic carbonate were identified from the deep Bering Sea in cores taken on Leg 19 of the Deep Sea Drilling Project. Carbonate minerals were mainly high‐magnesium calcite and protodolomite, less commonly siderite, rhodo‐chrosite, low‐magnesium calcite, and manganosiderite. Authigenic carbonates cement and replace diatom ooze, ash and bentonite beds, and, less commonly, clastic beds. Replacement zones are as much as 60 cm thick. Eighty‐five per cent of carbonate beds occurred below 400 m sub‐bottom depth and 70% in sediment older than 4 m.y. δ 13 C values averaged ‐17.20 0/00 PDB and δ 18 O ranged from 18.59 to 34–11 0/00 SMOW. The carbon was derived from oxidation of organic matter under anaerobic conditions during bacterial reduction of sulphate, or from CO 2 produced in concert with CH 4 during degradation of organic matter. The cations (Ca, Mg, Fe, Mn) were derived from alteration of ash beds. In Bering Sea deposits, ash beds altered to smectite within about 3–5 m.y. Carbonate precipitated simultaneously at different stratigraphic levels within the 627–1057 m sections at temperatures of 7–85°C. No apparent calcite precursor of biogenic origin was found for these authigenic carbonates. Article in Journal/Newspaper Bering Sea Wiley Online Library Bering Sea Sedimentology 26 5 681 705 |
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Wiley Online Library |
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crwiley |
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English |
description |
ABSTRACT Forty beds of authigenic carbonate were identified from the deep Bering Sea in cores taken on Leg 19 of the Deep Sea Drilling Project. Carbonate minerals were mainly high‐magnesium calcite and protodolomite, less commonly siderite, rhodo‐chrosite, low‐magnesium calcite, and manganosiderite. Authigenic carbonates cement and replace diatom ooze, ash and bentonite beds, and, less commonly, clastic beds. Replacement zones are as much as 60 cm thick. Eighty‐five per cent of carbonate beds occurred below 400 m sub‐bottom depth and 70% in sediment older than 4 m.y. δ 13 C values averaged ‐17.20 0/00 PDB and δ 18 O ranged from 18.59 to 34–11 0/00 SMOW. The carbon was derived from oxidation of organic matter under anaerobic conditions during bacterial reduction of sulphate, or from CO 2 produced in concert with CH 4 during degradation of organic matter. The cations (Ca, Mg, Fe, Mn) were derived from alteration of ash beds. In Bering Sea deposits, ash beds altered to smectite within about 3–5 m.y. Carbonate precipitated simultaneously at different stratigraphic levels within the 627–1057 m sections at temperatures of 7–85°C. No apparent calcite precursor of biogenic origin was found for these authigenic carbonates. |
format |
Article in Journal/Newspaper |
author |
HEIN, JAMES R. O'NEIL, JAMES R. JONES, MARJORIE G. |
spellingShingle |
HEIN, JAMES R. O'NEIL, JAMES R. JONES, MARJORIE G. Origin of authigenic carbonates in sediment from the deep Bering Sea |
author_facet |
HEIN, JAMES R. O'NEIL, JAMES R. JONES, MARJORIE G. |
author_sort |
HEIN, JAMES R. |
title |
Origin of authigenic carbonates in sediment from the deep Bering Sea |
title_short |
Origin of authigenic carbonates in sediment from the deep Bering Sea |
title_full |
Origin of authigenic carbonates in sediment from the deep Bering Sea |
title_fullStr |
Origin of authigenic carbonates in sediment from the deep Bering Sea |
title_full_unstemmed |
Origin of authigenic carbonates in sediment from the deep Bering Sea |
title_sort |
origin of authigenic carbonates in sediment from the deep bering sea |
publisher |
Wiley |
publishDate |
1979 |
url |
http://dx.doi.org/10.1111/j.1365-3091.1979.tb00937.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-3091.1979.tb00937.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-3091.1979.tb00937.x |
geographic |
Bering Sea |
geographic_facet |
Bering Sea |
genre |
Bering Sea |
genre_facet |
Bering Sea |
op_source |
Sedimentology volume 26, issue 5, page 681-705 ISSN 0037-0746 1365-3091 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1365-3091.1979.tb00937.x |
container_title |
Sedimentology |
container_volume |
26 |
container_issue |
5 |
container_start_page |
681 |
op_container_end_page |
705 |
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1811637111149821952 |