Core correlation data and revised composite depth scale of Exp302 (ACEX) cores
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| Format: | Dataset Open Access |
| Sprache: | en |
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PANGAEA
2008
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| _version_ | 1867167660503990272 |
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| author | O'Regan, Matthew Sakamoto, Tatsuhiko King, John W |
| author_facet | O'Regan, Matthew Sakamoto, Tatsuhiko King, John W |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Expedition 302 of the Integrated Ocean Drilling Program (IODP), also known as the Arctic Coring Expedition (ACEX), successfully penetrated a sequence of Cenozoic sediments draping the crest of the Lomonosov Ridge in the central Arctic Ocean. The cumulative sedimentary record spans the last 57 m.y. and was recovered from three sites located within 15 km of each other. Merging the recovered cores onto a common depth scale that accurately reflects their stratigraphic placement below the seafloor is a fundamental step toward interpreting this unique sedimentary record. However, the lack of overlapping recovery in adjacent holes and intervals of high core disturbance complicated traditional methods of stratigraphic correlation. Here we present a revised composite depth scale for the ACEX sediments, generated in part by performing a regional stratigraphic correlation with sediments recovered from previous expeditions to the Lomonosov Ridge. The revised depth scale also reassesses the offsets for cores in the upper 55 meters below seafloor, where no overlapping recovery was acquired, and proposes modifications to these depths. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_707074 |
| institution | PANGAEA |
| language | en |
| publishDate | 2008 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Core correlation data and revised composite depth scale of Exp302 (ACEX) cores O'Regan, Matthew Sakamoto, Tatsuhiko King, John W 302-CompSite; 302-M0002A; 302-M0003A; 302-M0004A; 302-M0004B; 302-M0004C; ACEX; ACEX-M2A; ACEX-M3A; ACEX-M4A; ACEX-M4B; ACEX-M4C; Arctic Coring Expedition, ACEX; Arctic Ocean; CCGS Captain Molly Kool (Vidar Viking); COMPCORE; Composite Core; Exp302; Integrated Ocean Drilling Program / International Ocean Discovery Program; IODP Expedition 302 of the Integrated Ocean Drilling Program (IODP), also known as the Arctic Coring Expedition (ACEX), successfully penetrated a sequence of Cenozoic sediments draping the crest of the Lomonosov Ridge in the central Arctic Ocean. The cumulative sedimentary record spans the last 57 m.y. and was recovered from three sites located within 15 km of each other. Merging the recovered cores onto a common depth scale that accurately reflects their stratigraphic placement below the seafloor is a fundamental step toward interpreting this unique sedimentary record. However, the lack of overlapping recovery in adjacent holes and intervals of high core disturbance complicated traditional methods of stratigraphic correlation. Here we present a revised composite depth scale for the ACEX sediments, generated in part by performing a regional stratigraphic correlation with sediments recovered from previous expeditions to the Lomonosov Ridge. The revised depth scale also reassesses the offsets for cores in the upper 55 meters below seafloor, where no overlapping recovery was acquired, and proposes modifications to these depths. |
| title | Core correlation data and revised composite depth scale of Exp302 (ACEX) cores |
| topic | 302-CompSite; 302-M0002A; 302-M0003A; 302-M0004A; 302-M0004B; 302-M0004C; ACEX; ACEX-M2A; ACEX-M3A; ACEX-M4A; ACEX-M4B; ACEX-M4C; Arctic Coring Expedition, ACEX; Arctic Ocean; CCGS Captain Molly Kool (Vidar Viking); COMPCORE; Composite Core; Exp302; Integrated Ocean Drilling Program / International Ocean Discovery Program; IODP |
| url | https://doi.org/10.1594/PANGAEA.707074 |