Hemleben, Christoph; Auras, Anabelle (1984): Foraminiferal species and dissolution index at DSDP Hole 78-541 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.808882, Supplement to: Hemleben, C; Auras, A (1984): Variations in the calcite dissolution pattern on the Barbados Ridge Complex at Sites 541 and 543, Deep Sea Drilling Project Leg 78A. In: Biju-Duval, B; Moore, JC; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 78A, 471-497, https://doi.org/10.2973/dsdp.proc.78a.124.1984
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Abstract:
The calcite compensation depth (CCD) fluctuates as a result of changes in the water-mass system, thereby producing a distinct dissolution pattern. Differential dissolution changes the composition of the foraminiferal assemblages, reflecting the depositional environment in respect to the fluctuating CCD. The dissolution pattern for the comparatively shallow Site 541 on the Barbados Ridge indicates a depositional environment mostly above the CCD, but below the foraminiferal lysocline during the late Miocene to early Pleistocene. In contrast, sediments of the deeper-water Site 543 indicate a depositional environment above the CCD during the late Pliocene to early Pleistocene only. Furthermore, similarities in the dissolution pattern of corresponding time intervals of Site 541 (represented by superimposed faulted intervals termed Tectonic Units A and B) are recognizable. Sediments deposited clearly above the foraminiferal lysocline are rare
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Latitude: 15.520000 * Longitude: -58.728300
Date/Time Start: 1981-02-13T00:00:00 * Date/Time End: 1981-02-13T00:00:00
Event(s):
78-541 * Latitude: 15.520000 * Longitude: -58.728300 * Date/Time: 1981-02-13T00:00:00 * Elevation: -4940.0 m * Penetration: 459 m * Recovery: 400.6 m * Location: North Atlantic/RIDGE * Campaign: Leg78 (Leg78AB) * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 50 cores; 459 m cored; 0 m drilled; 87.3 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
3 datasets
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Datasets listed in this publication series
- Hemleben, C; Auras, A (1984): (Table 3) Foraminiferal species in DSDP Sample 78-541-5-3,19-21. https://doi.org/10.1594/PANGAEA.808879
- Hemleben, C; Auras, A (1984): (Table 4) Foraminiferal species in DSDP Sample 78-541-8-3,141-143 and Section 78-541-8-CC. https://doi.org/10.1594/PANGAEA.808880
- Hemleben, C; Auras, A (1984): (Table 5) Foraminiferal species and fluctuations of the dissolution index of two samples, representing the dissolution pattern during the late Pliocene at DSDP Hole 78-541. https://doi.org/10.1594/PANGAEA.808881