Pyrolysis data of South Atlantic source rocks from 20 DSDP-ODP sites: Insight on source-rock potential
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| Format: | Dataset Open Access |
| Language: | en |
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PANGAEA
2019
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| _version_ | 1867171016036319232 |
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| author | Setoyama, Eiichi Greb, Matthias Garel, Sylvain Beti, Dhrupad Kanungo, Sudeep |
| author_facet | Setoyama, Eiichi Greb, Matthias Garel, Sylvain Beti, Dhrupad Kanungo, Sudeep |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | This data set consists of analytical results from the HAWK Pyrolysis and TOC instrument for 161 bulk samples from Mesozoic to Cenozoic strata at 20 DSDP-ODP sites in the South Atlantic region, from the Weddell Sea in the south to the Demerara Rise in the north, and in the Mozambique Ridge. Based on a revised chronostratigraphic and paleoenvironment framework (Setoyama and Kanungo, submitted), our pyrolysis results, combined with data published by previous studies, allow us to identify seven Mesozoic source-rock intervals: two in the Southern South Atlantic (SA), one in the Central SA and four in the Equatorial SA. Furthermore, these data also provide an estimate of the source-rock potential and quality of the identified intervals, which are influenced by depositional environments. A significant portion of the pyrolysis data is affected by the mineral matrix effect (MME) that artificially lowers the estimated potential and quality of source rocks. Further analyses are therefore required to correct the MME and for the proper identification of organic matter to ensure the reliable determination of organofacies, thereby facilitating improved source rock system evaluation. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_907697 |
| institution | PANGAEA |
| language | en |
| publishDate | 2019 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Pyrolysis data of South Atlantic source rocks from 20 DSDP-ODP sites: Insight on source-rock potential Setoyama, Eiichi Greb, Matthias Garel, Sylvain Beti, Dhrupad Kanungo, Sudeep 113-692B; 113-693A; 14-144; 159-959D; 159-960C; 159-962B; 159-962D; 207-1257A; 207-1258C; 25-249; 36-327A; 36-328; 36-328B; 36-330; 39-356; 39-357; 40-361; 40-363; 40-364; 71-511; 72-516F; 75-530A; Carbon, organic, total; Carbon dioxide yield, S3, per unit sediment mass; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Event label; Glomar Challenger; Gulf of Guinea; HAWK Pyrolysis; Hydrocarbon yield, S1, per unit sediment mass; Hydrocarbon yield, S2, per unit sediment mass; Hydrogen index, mass HC, per unit mass total organic carbon; Indian Ocean//RIDGE; IODP; Joides Resolution; Latitude of event; Leg113; Leg14; Leg159; Leg207; Leg25; Leg36; Leg39; Leg40; Leg71; Leg72; Leg75; Longitude of event; North Atlantic/CONT RISE; North Atlantic Ocean; Ocean Drilling Program; ODP; Organic Geochemistry; Oxygen index, mass CO2, per unit mass total organic carbon; Pyrolysis temperature maximum; Sample code/label; source rock; South Atlantic; South Atlantic/BASIN; South Atlantic/CONT RISE; South Atlantic/PLATEAU; South Atlantic/RIDGE; South Atlantic/SYNCLINE; South Atlantic Ocean; Weddell Sea This data set consists of analytical results from the HAWK Pyrolysis and TOC instrument for 161 bulk samples from Mesozoic to Cenozoic strata at 20 DSDP-ODP sites in the South Atlantic region, from the Weddell Sea in the south to the Demerara Rise in the north, and in the Mozambique Ridge. Based on a revised chronostratigraphic and paleoenvironment framework (Setoyama and Kanungo, submitted), our pyrolysis results, combined with data published by previous studies, allow us to identify seven Mesozoic source-rock intervals: two in the Southern South Atlantic (SA), one in the Central SA and four in the Equatorial SA. Furthermore, these data also provide an estimate of the source-rock potential and quality of the identified intervals, which are influenced by depositional environments. A significant portion of the pyrolysis data is affected by the mineral matrix effect (MME) that artificially lowers the estimated potential and quality of source rocks. Further analyses are therefore required to correct the MME and for the proper identification of organic matter to ensure the reliable determination of organofacies, thereby facilitating improved source rock system evaluation. |
| title | Pyrolysis data of South Atlantic source rocks from 20 DSDP-ODP sites: Insight on source-rock potential |
| topic | 113-692B; 113-693A; 14-144; 159-959D; 159-960C; 159-962B; 159-962D; 207-1257A; 207-1258C; 25-249; 36-327A; 36-328; 36-328B; 36-330; 39-356; 39-357; 40-361; 40-363; 40-364; 71-511; 72-516F; 75-530A; Carbon, organic, total; Carbon dioxide yield, S3, per unit sediment mass; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Event label; Glomar Challenger; Gulf of Guinea; HAWK Pyrolysis; Hydrocarbon yield, S1, per unit sediment mass; Hydrocarbon yield, S2, per unit sediment mass; Hydrogen index, mass HC, per unit mass total organic carbon; Indian Ocean//RIDGE; IODP; Joides Resolution; Latitude of event; Leg113; Leg14; Leg159; Leg207; Leg25; Leg36; Leg39; Leg40; Leg71; Leg72; Leg75; Longitude of event; North Atlantic/CONT RISE; North Atlantic Ocean; Ocean Drilling Program; ODP; Organic Geochemistry; Oxygen index, mass CO2, per unit mass total organic carbon; Pyrolysis temperature maximum; Sample code/label; source rock; South Atlantic; South Atlantic/BASIN; South Atlantic/CONT RISE; South Atlantic/PLATEAU; South Atlantic/RIDGE; South Atlantic/SYNCLINE; South Atlantic Ocean; Weddell Sea |
| url | https://doi.org/10.1594/PANGAEA.907697 |