Not logged in
Data Publisher for Earth & Environmental Science

Holbourn, Ann; Kuhnt, Wolfgang (2002): Cenomanian-Turonian benthic foraminifera of the Kerguelen Plateau. PANGAEA,, Supplement to: Holbourn, A; Kuhnt, W (2002): Cenomanian–Turonian palaeoceanographic change on the Kerguelen Plateau: a comparison with Northern Hemisphere records. Cretaceous Research, 23(3), 333-349,

Always quote above citation when using data! You can download the citation in several formats below.

RIS CitationBibTeX CitationShow MapGoogle Earth

Recent drilling on the Kerguelen Plateau (Ocean Drilling Program Leg 183) has provided a unique and exciting high latitude record of palaeoceanographic change during the Cenomanian–Turonian in the Southern Ocean. The benthic foraminiferal succession at Site 1138 records the evolution of the Kerguelen Plateau from a subaerially exposed platform in the Cenomanian to a bathyal, pelagic environment in the early Turonian, following a major transgressive pulse and increased thermal subsidence of the Kerguelen Plateau, which led to a sea-level rise of possibly several hundred metres. Diversified benthic foraminiferal assemblages indicate an upper bathyal, mesotrophic setting after the peak of the transgression. The assemblages exhibit strong similarities to temperate, shelf and slope assemblages in the Northern Hemisphere. This bimodal distribution reflects the existence of open oceanic gateways and a dynamic trans-hemispheric global circulation. Equatorial assemblages are characterized by a low-diversity, high carbon flux biofacies. Assemblages from Alaska demonstrate high organic productivity and low oxygen conditions and the prevalence of elevated temperatures on the flooded shelf of the North Slope. Our results show that the distribution of upper bathyal benthic foraminifera was strongly modulated by carbon flux and oxygenation fluctuations, and not by physical migration barriers.
Latitude: -53.551750 * Longitude: 75.974880
Date/Time Start: 1999-01-07T23:30:00 * Date/Time End: 1999-01-31T06:15:00
183-1138A * Latitude: -53.551750 * Longitude: 75.974880 * Date/Time Start: 1999-01-07T23:30:00 * Date/Time End: 1999-01-31T06:15:00 * Elevation: -1141.4 m * Penetration: 842.7 m * Recovery: 411.98 m * Location: Indian Ocean * Campaign: Leg183 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 89 cores; 842.7 m cored; 0 m drilled; 48.9 % recovery
2 datasets

Download Data

Download ZIP file containing all datasets as tab-delimited text (use the following character encoding: )