d'Hondt, Steven L; Lindinger, Matthias (1994): Stable carbon and oxygen isotope record of Maastrichtian sediments from DSDP Site 74-528 in the South Atlantic Ocean [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.703805, Supplement to: d'Hondt, SL; Lindinger, M (1994): A stable isotopic record of the Maastrichtian ocean-climate system: South Atlantic DSDP site 528. Palaeogeography, Palaeoclimatology, Palaeoecology, 112(3-4), 363-378, https://doi.org/10.1016/0031-0182(94)90081-7
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Abstract:
The upper Maastrichtian interval of mid-latitude South Atlantic Deep Sea Drilling Project site 528 spans approximately the last 4 million years of the Cretaceous. The isotopic record of this sequence indicates that relatively large (0.5-1.0‰) late Maastrichtian oxygen and carbon isotopic shifts occurred on geologically short time scales (less than 100-500 kyr). Comparison with previous oxygen isotopic data suggests that in high- and mid-latitude southern oceans the multimillion-year Maastrichtian cooling trend largely resulted from geologically rapid climatic 'steps'. Coincidence of the largest carbon and oxygen isotopic excursions suggests that relatively large and geologically rapid changes in marine and atmospheric carbon content may have directly contributed to the long-term cooling of the Late Cretaceous 'greenhouse'.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: -28.523425 * Median Longitude: 2.322050 * South-bound Latitude: -28.524800 * West-bound Longitude: 2.320100 * North-bound Latitude: -28.522050 * East-bound Longitude: 2.324000
Date/Time Start: 1980-07-04T00:00:00 * Date/Time End: 1980-07-04T00:00:00
Event(s):
74-528 * Latitude: -28.524800 * Longitude: 2.324000 * Date/Time: 1980-07-04T00:00:00 * Elevation: -3800.0 m * Penetration: 555 m * Recovery: 271.9 m * Location: South Atlantic/RIDGE * Campaign: Leg74 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 47 cores; 441 m cored; 0 m drilled; 61.7 % recovery
74-528_Site * Latitude: -28.522050 * Longitude: 2.320100 * Date/Time: 1980-07-04T00:00:00 * Elevation: -3807.5 m * Penetration: 6.855 m * Recovery: 3.838 m * Location: South Atlantic/RIDGE * Campaign: Leg74 * Basis: Glomar Challenger * Method/Device: Composite Core (COMPCORE) * Comment: 76 cores; 567.1 m cored; 0 m drilled; 67.7% recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
2 datasets
Download Data
Datasets listed in this publication series
- d'Hondt, SL; Lindinger, M (1994): (Appendix 1) Stable carbon and oxygen isotope ratios of Maastrichtian foraminifera and bulk sediment of DSDP Site 74-528 in the South Atlantic Ocean. https://doi.org/10.1594/PANGAEA.703740
- d'Hondt, SL; Lindinger, M (1994): (Table 1) Maastrichtian age-depth estimates of DSDP Site 74-528_Site in the South Atlantic Ocean. https://doi.org/10.1594/PANGAEA.703721