Stable organic carbon isotope record and total organic carbon content from the Cenomanian-Turonian boundary
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| Autores principales: | , , , , |
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| Formato: | Dataset Open Access |
| Lenguaje: | en |
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PANGAEA
2005
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| _version_ | 1867172222306615296 |
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| author | Erbacher, Jochen Friedrich, Oliver Wilson, Paul A Birch, Heather Mutterlose, Jörg |
| author_facet | Erbacher, Jochen Friedrich, Oliver Wilson, Paul A Birch, Heather Mutterlose, Jörg |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Ocean Drilling Program (ODP) Leg 207 recovered expanded sections of organic-carbon-rich laminated shales on Demerara Rise (western tropical Atlantic). High-resolution organic carbon isotope and total organic carbon (TOC) records are presented, which span the Cenomanian-Turonian boundary interval (CTBI), including the Oceanic Anoxic Event (OAE) 2, from four sites oriented along a NW striking depth transect. These records represent the first high-resolution carbon isotope records across OAE 2 from the South American margin of the tropical Atlantic. Due to the scarcity of age significant fossils, the main purpose of this study was to develop a detailed carbon isotope stratigraphy in order to correlate the CTBI across the depth transect and to tie this to biostratigraphically well-defined sections in the Western Interior Basin (Pueblo, USA), boreal shelf seas (Eastbourne, England), and western Tethys (Oued Mellegue, Tunisia). All four sections studied document a 6 per mil increase of d13Corg values at the base of the CTBI, which is followed by an interval of elevated d13Corg values and a subsequent decrease. Our results supply an important stratigraphic base for subsequent paleoceanographic studies on Late Cenomanian to Early Turonian sediments from Demerara Rise and elsewhere. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_768350 |
| institution | PANGAEA |
| language | en |
| publishDate | 2005 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Stable organic carbon isotope record and total organic carbon content from the Cenomanian-Turonian boundary Erbacher, Jochen Friedrich, Oliver Wilson, Paul A Birch, Heather Mutterlose, Jörg 207-1258; 207-1259A; 207-1260; 207-1261; COMPCORE; Composite Core; DRILL; Drilling/drill rig; Joides Resolution; Leg207; North Atlantic Ocean; Ocean Drilling Program; ODP Ocean Drilling Program (ODP) Leg 207 recovered expanded sections of organic-carbon-rich laminated shales on Demerara Rise (western tropical Atlantic). High-resolution organic carbon isotope and total organic carbon (TOC) records are presented, which span the Cenomanian-Turonian boundary interval (CTBI), including the Oceanic Anoxic Event (OAE) 2, from four sites oriented along a NW striking depth transect. These records represent the first high-resolution carbon isotope records across OAE 2 from the South American margin of the tropical Atlantic. Due to the scarcity of age significant fossils, the main purpose of this study was to develop a detailed carbon isotope stratigraphy in order to correlate the CTBI across the depth transect and to tie this to biostratigraphically well-defined sections in the Western Interior Basin (Pueblo, USA), boreal shelf seas (Eastbourne, England), and western Tethys (Oued Mellegue, Tunisia). All four sections studied document a 6 per mil increase of d13Corg values at the base of the CTBI, which is followed by an interval of elevated d13Corg values and a subsequent decrease. Our results supply an important stratigraphic base for subsequent paleoceanographic studies on Late Cenomanian to Early Turonian sediments from Demerara Rise and elsewhere. |
| title | Stable organic carbon isotope record and total organic carbon content from the Cenomanian-Turonian boundary |
| topic | 207-1258; 207-1259A; 207-1260; 207-1261; COMPCORE; Composite Core; DRILL; Drilling/drill rig; Joides Resolution; Leg207; North Atlantic Ocean; Ocean Drilling Program; ODP |
| url | https://doi.org/10.1594/PANGAEA.768350 |