Geochemistry and isotopes at DSDP Leg 80 Holes, supplement to: Cunningham, Robert; Kroopnick, Peter M (1985): Inorganic and isotopic geochemistry of sediments from Sites 549 to 551, northeastern North Atlantic. In: De Graciansky, PC; Poag, CW; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Gov. Printing Office), 80, 1073-1079
Thirty-eight samples from DSDP Sites 549 to 551 were analyzed for major and minor components and trace element abundances. Multivariate statistical analysis of geochemical data groups the samples into two major classes: an organic-carbon- rich group (> 1% TOC) containing high levels of marine org...
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1985
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ftdatacite:10.1594/pangaea.808145 2023-05-15T17:35:31+02:00 Geochemistry and isotopes at DSDP Leg 80 Holes, supplement to: Cunningham, Robert; Kroopnick, Peter M (1985): Inorganic and isotopic geochemistry of sediments from Sites 549 to 551, northeastern North Atlantic. In: De Graciansky, PC; Poag, CW; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Gov. Printing Office), 80, 1073-1079 Cunningham, Robert Kroopnick, Peter M 1985 application/zip https://dx.doi.org/10.1594/pangaea.808145 https://doi.pangaea.de/10.1594/PANGAEA.808145 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.2973/dsdp.proc.80.151.1985 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Deep Sea Drilling Project DSDP Collection article Supplementary Collection of Datasets 1985 ftdatacite https://doi.org/10.1594/pangaea.808145 https://doi.org/10.2973/dsdp.proc.80.151.1985 2021-11-05T12:55:41Z Thirty-eight samples from DSDP Sites 549 to 551 were analyzed for major and minor components and trace element abundances. Multivariate statistical analysis of geochemical data groups the samples into two major classes: an organic-carbon- rich group (> 1% TOC) containing high levels of marine organic matter and certain trace elements (Cu, Zn, V, Ni, Co, Ba, and Cr) and an organic-carbon-lean group depleted in these components. The greatest organic and trace metal enrichments occur in the uppermost Albian to Turanian sections of Sites 549 to 551. Carbon-isotopic values of bulk carbonate for the middle Cenomanian section of Site 550 (2.35 to 2.70 per mil) and the upper Cenomanian-Turonian sections of Sites 549 (3.35 to 4.47 per mil) and 551 (3.13 to 3.72 per mil) are similar to coeval values reported elsewhere in the region. The relatively heavy d13C values from Sites 549 and 551 indicate that this interval was deposited during the global "oceanic anoxic event" that occurred at the Cenomanian/Turonian boundary. Variation in the d18O of bulk carbonate for Section 550B-18-1 of middle Cenomanian age suggests that paleosalinity and/or paleotemperature variations may have occurred concurrently with periodic anoxia at this site. Climatically controlled increases in surface-water runoff may have caused surface waters to periodically freshen, resulting in stable salinity stratification Article in Journal/Newspaper North Atlantic DataCite Metadata Store (German National Library of Science and Technology) |
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Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Deep Sea Drilling Project DSDP |
spellingShingle |
Deep Sea Drilling Project DSDP Cunningham, Robert Kroopnick, Peter M Geochemistry and isotopes at DSDP Leg 80 Holes, supplement to: Cunningham, Robert; Kroopnick, Peter M (1985): Inorganic and isotopic geochemistry of sediments from Sites 549 to 551, northeastern North Atlantic. In: De Graciansky, PC; Poag, CW; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Gov. Printing Office), 80, 1073-1079 |
topic_facet |
Deep Sea Drilling Project DSDP |
description |
Thirty-eight samples from DSDP Sites 549 to 551 were analyzed for major and minor components and trace element abundances. Multivariate statistical analysis of geochemical data groups the samples into two major classes: an organic-carbon- rich group (> 1% TOC) containing high levels of marine organic matter and certain trace elements (Cu, Zn, V, Ni, Co, Ba, and Cr) and an organic-carbon-lean group depleted in these components. The greatest organic and trace metal enrichments occur in the uppermost Albian to Turanian sections of Sites 549 to 551. Carbon-isotopic values of bulk carbonate for the middle Cenomanian section of Site 550 (2.35 to 2.70 per mil) and the upper Cenomanian-Turonian sections of Sites 549 (3.35 to 4.47 per mil) and 551 (3.13 to 3.72 per mil) are similar to coeval values reported elsewhere in the region. The relatively heavy d13C values from Sites 549 and 551 indicate that this interval was deposited during the global "oceanic anoxic event" that occurred at the Cenomanian/Turonian boundary. Variation in the d18O of bulk carbonate for Section 550B-18-1 of middle Cenomanian age suggests that paleosalinity and/or paleotemperature variations may have occurred concurrently with periodic anoxia at this site. Climatically controlled increases in surface-water runoff may have caused surface waters to periodically freshen, resulting in stable salinity stratification |
format |
Article in Journal/Newspaper |
author |
Cunningham, Robert Kroopnick, Peter M |
author_facet |
Cunningham, Robert Kroopnick, Peter M |
author_sort |
Cunningham, Robert |
title |
Geochemistry and isotopes at DSDP Leg 80 Holes, supplement to: Cunningham, Robert; Kroopnick, Peter M (1985): Inorganic and isotopic geochemistry of sediments from Sites 549 to 551, northeastern North Atlantic. In: De Graciansky, PC; Poag, CW; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Gov. Printing Office), 80, 1073-1079 |
title_short |
Geochemistry and isotopes at DSDP Leg 80 Holes, supplement to: Cunningham, Robert; Kroopnick, Peter M (1985): Inorganic and isotopic geochemistry of sediments from Sites 549 to 551, northeastern North Atlantic. In: De Graciansky, PC; Poag, CW; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Gov. Printing Office), 80, 1073-1079 |
title_full |
Geochemistry and isotopes at DSDP Leg 80 Holes, supplement to: Cunningham, Robert; Kroopnick, Peter M (1985): Inorganic and isotopic geochemistry of sediments from Sites 549 to 551, northeastern North Atlantic. In: De Graciansky, PC; Poag, CW; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Gov. Printing Office), 80, 1073-1079 |
title_fullStr |
Geochemistry and isotopes at DSDP Leg 80 Holes, supplement to: Cunningham, Robert; Kroopnick, Peter M (1985): Inorganic and isotopic geochemistry of sediments from Sites 549 to 551, northeastern North Atlantic. In: De Graciansky, PC; Poag, CW; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Gov. Printing Office), 80, 1073-1079 |
title_full_unstemmed |
Geochemistry and isotopes at DSDP Leg 80 Holes, supplement to: Cunningham, Robert; Kroopnick, Peter M (1985): Inorganic and isotopic geochemistry of sediments from Sites 549 to 551, northeastern North Atlantic. In: De Graciansky, PC; Poag, CW; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Gov. Printing Office), 80, 1073-1079 |
title_sort |
geochemistry and isotopes at dsdp leg 80 holes, supplement to: cunningham, robert; kroopnick, peter m (1985): inorganic and isotopic geochemistry of sediments from sites 549 to 551, northeastern north atlantic. in: de graciansky, pc; poag, cw; et al. (eds.), initial reports of the deep sea drilling project, washington (u.s. gov. printing office), 80, 1073-1079 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
1985 |
url |
https://dx.doi.org/10.1594/pangaea.808145 https://doi.pangaea.de/10.1594/PANGAEA.808145 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
https://dx.doi.org/10.2973/dsdp.proc.80.151.1985 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.808145 https://doi.org/10.2973/dsdp.proc.80.151.1985 |
_version_ |
1766134709254881280 |