Tyson, Richard V (1984): Palynofacies investigation of Callovian sediments of DSDP Hole 79-534A [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.746749, Supplement to: Tyson, RV (1984): Palynofacies investigation of Callovian (Middle Jurassic) sediments from DSDP Site 534, Blake-Bahama Basin, Western Central Atlantic. Marine and Petroleum Geology, 1(1), 3-13, https://doi.org/10.1016/0264-8172(84)90116-8
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Abstract:
During the extension of Deep Sea Drilling Project (DSDP) Leg 76 a new and previously unpenetrated lithological unit composed mainly of claystones was cored above basalt basement at Site 534 in the Blake-Bahama Basin. The Callovian part of the new unit contains interbedded 'black shales' which were hitherto unexpected in this part of the section. This Paper presents a brief palynological examination of lithofacies-kerogen relationships in these sediments and shows that their organic content is almost entirely a function of the re-deposition of terrestial and marine organic matter versus the ambient redox conditions of the depositional environment. Allochthonous organic matter inputs are highest in the interbedded turbidites and decline progressively toward the pelagic black shales in which marine organic matter is comparatively well preserved. The significance of various kerogen and palynomorph indices are discussed. The study emphasizes the absolute necessity for sedimentologically-aware sampling in all palynological and geochemical work on lithologically heterogeneous sequences.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Latitude: 28.343300 * Longitude: -75.381700
Date/Time Start: 1980-10-21T00:00:00 * Date/Time End: 1980-10-21T00:00:00
Event(s):
76-534A * Latitude: 28.343300 * Longitude: -75.381700 * Date/Time: 1980-10-21T00:00:00 * Elevation: -4971.0 m * Penetration: 1666.5 m * Recovery: 612.4 m * Location: North Atlantic/BASIN * Campaign: Leg76 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 127 cores; 1113.1 m cored; 31.5 m drilled; 55 % 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
- Tyson, RV (1984): (Table 2) Lithological composition and character of DSDP Hole 76-534A. https://doi.org/10.1594/PANGAEA.746746
- Tyson, RV (1984): (Appendix 2) Relative abundance of palynomorphs in ODP Hole 76-534A. https://doi.org/10.1594/PANGAEA.746748
- Tyson, RV (1984): (Appendix 1) Relative abundance of particles in ODP Hole 76-534A. https://doi.org/10.1594/PANGAEA.746747