Core correlation data and revised composite depth scale of Exp302 (ACEX) cores


Autoria(s): O'Regan, Matthew; Sakamoto, Tatsuhiko; King, John W
Cobertura

MEDIAN LATITUDE: 87.890346 * MEDIAN LONGITUDE: 137.464365 * SOUTH-BOUND LATITUDE: 87.866580 * WEST-BOUND LONGITUDE: 136.174580 * NORTH-BOUND LATITUDE: 87.933330 * EAST-BOUND LONGITUDE: 139.535000 * DATE/TIME START: 2004-08-19T00:00:00 * DATE/TIME END: 2004-09-03T00:00:00

Data(s)

07/11/2008

Resumo

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.

Formato

application/zip, 10 datasets

Identificador

https://doi.pangaea.de/10.1594/PANGAEA.707074

doi:10.1594/PANGAEA.707074

Idioma(s)

en

Publicador

PANGAEA

Direitos

CC-BY: Creative Commons Attribution 3.0 Unported

Access constraints: unrestricted

Fonte

Supplement to: O'Regan, Matthew; Sakamoto, Tatsuhiko; King, John W (2008): Data report: Regional stratigraphic correlation and a revised composite depth scale for IODP Expedition 302. In: Backman, J., Moran, K., McInroy, D.B., Mayer, L.A., and the Expedition 302 Scientists, Proc. IODP, 302: Edinburgh (Integrated Ocean Drilling Program Management International, Inc.)., doi:10.2204/iodp.proc.302.202.2008

Palavras-Chave #-; [m]; 302-CompSite; 302-M0002A; 302-M0003A; 302-M0004A; 302-M0004B; 302-M0004C; ACEX-M2A; ACEX-M3A; ACEX-M4A; ACEX-M4B; ACEX-M4C; Arctic Coring Expedition, ACEX; Arctic Ocean; Calculated; COMPCORE; Composite Core; Cored; Cum Offset; Cumulative Offset; Depth; Depth, composite revised; Depth, reference; DEPTH, sediment/rock; Depth cr; Depth ref; Diff; Difference; DRILL; Drilling/drill rig; Exp302; Integrated Ocean Drilling Program / International Ocean Discovery Program; Intercore correlation; Interval Cored; IODP; Label; Label 2; mbsf in the correlated core 96/12-1PC; mbsf in the correlated core PS2185-6; mbsf of spliced core; Offsets fore mcd scale; Offsets fore rmcd scale; Offsets for mcd scale; Offsets for rmcd scale; Rec; Recovery; Sample code/label; Sample code/label 2; spliced core depth; Vidar Viking
Tipo

Dataset