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Data Publisher for Earth & Environmental Science

Berger, Wolfgang H; Yasuda, Memorie K; Bickert, Torsten; Wefer, Gerold (1996): Stable oxygen isotope record of foraminifera from the Ontong Java Plateau. PANGAEA, https://doi.org/10.1594/PANGAEA.711824, Supplement to: Berger, Wolfgang H; Bickert, Torsten; Yasuda, Memorie K; Wefer, Gerold (1996): Reconstruction of atmospheric CO2 from ice-core data and the deep-sea record of Ontong Java plateau: the Milankovitch chron. Geologische Rundschau, 85(3), 466-495, https://doi.org/10.1007/BF02369003

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Abstract:
We provide a reconstruction of atmospheric CO2 from deep-sea sediments, for the past 625000 years (Milankovitch chron). Our database consists of a Milankovitch template of sea-level variation in combination with a unique data set for the deep-sea record for Ontong Java plateau in the western equatorial Pacific. We redate the Vostok ice-core data of Barnola et al. (1987, doi:10.1038/329408a0). To make the reconstructions we employ multiple regression between deep-sea data, on one hand, and ice-core CO2 data in Antarctica, on the other. The patterns of correlation suggest that the main factors controlling atmospheric CO2 can be described as a combination of sea-level state and sea-level change. For best results squared values of state and change are used. The square-of-sea-level rule agrees with the concept that shelf processes are important modulators of atmospheric CO2 (e.g., budgets of shelf organic carbon and shelf carbonate, nitrate reduction). The square-of-change rule implies that, on short timescales, any major disturbance of the system results in a temporary rise in atmospheric CO2.
Project(s):
Coverage:
Median Latitude: -0.299917 * Median Longitude: 158.014833 * South-bound Latitude: -2.242000 * West-bound Longitude: 155.865000 * North-bound Latitude: 1.422000 * East-bound Longitude: 159.380000
Date/Time Start: 1975-04-17T00:00:00 * Date/Time End: 1990-02-23T01:30:00
Event(s):
130-806B * Latitude: 0.318500 * Longitude: 159.361000 * Date/Time Start: 1990-02-18T21:00:00 * Date/Time End: 1990-02-23T01:30:00 * Elevation: -2519.9 m * Penetration: 743.1 m * Recovery: 666.36 m * Location: North Pacific Ocean * Campaign: Leg130 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 78 cores; 743.1 m cored; 0 m drilled; 89.7 % recovery
ERDC-084P * Latitude: 1.422000 * Longitude: 157.255000 * Date/Time: 1975-04-17T00:00:00 * Elevation: -2339.0 m * Campaign: ERDC * Basis: Eurydice * Method/Device: Piston corer (PC)
ERDC-089P * Latitude: -0.003000 * Longitude: 155.865000 * Date/Time: 1975-04-18T00:00:00 * Elevation: -1932.0 m * Campaign: ERDC * Basis: Eurydice * Method/Device: Piston corer (PC)
Size:
6 datasets

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