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Latouche, Claude; Maillet, Noelle (1985): Mineralogy at DSDP Site 82-558 and Hole 82-563 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.806524, Supplement to: Latouche, C; Maillet, N (1985): X-Ray mineralogy of Sites 558 and 563. In: Bougault, H; Cande, SC; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Govt. Printing Office), 82, 531-537, https://doi.org/10.2973/dsdp.proc.82.130.1985

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Abstract:
Downhole bulk-sample and clay-mineral analytical results for Sites 558 and 563 are presented in this chapter. These results show a Tertiary climatic and hydrologic evolution similar to that at other DSDP drill sites in the northeastern Atlantic Ocean (Sites 398, 403-406, 548-550, 552-555). The sediments recovered at both sites are primarily calcareous and chalky oozes characterized by >90% carbonate and minor quartz and plagioclase feldspar. Clay minerals smectite, kaolinite, illite, and chlorite are present throughout the cores; upsection, illite increases at the expense of smectite. The clay mineralogy suggests climatic cooling and increased ocean circulation during the Miocene. Intervals rich in very fine grained (<2 µm) quartz suggest times of increased eolian input. This could have resulted from development, during Oligocene and late Miocene time, of an arid, desertlike sediment provenance that lasted until the present day.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: 35.706100 * Median Longitude: -40.555400 * South-bound Latitude: 33.642200 * West-bound Longitude: -43.767300 * North-bound Latitude: 37.770000 * East-bound Longitude: -37.343500
Date/Time Start: 1981-10-03T00:00:00 * Date/Time End: 1981-10-24T00:00:00
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
2 datasets

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Datasets listed in this publication series

  1. Latouche, C; Maillet, N (1985): (Table 1) Mineralogy at DSDP Site 82-558. https://doi.org/10.1594/PANGAEA.806521
  2. Latouche, C; Maillet, N (1985): (Table 2) Mineralogy at DSDP Hole 82-563. https://doi.org/10.1594/PANGAEA.806523