Latouche, Claude; Maillet, Noelle (1984): Mineralogy at DSDP Leg 78A Holes [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.808749, Supplement to: Latouche, C; Maillet, N (1984): Evolution of Cenozoic clay assemblages in the Barbados Ridge (Deep Sea Drilling Project Sites 541, 542, 543). In: Biju-Duval, B; Moore, JC; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 78A, 343-356, https://doi.org/10.2973/dsdp.proc.78a.113.1984
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Abstract:
This chapter deals with the evolution of clay minerals in Cenozoic sediments from DSDP Sites 541, 542, and 543 east of the Lesser Antilles arc on and near the edge of the Barbados Ridge complex. Throughout the Miocene, smectite exceeds all other minerals at all three sites. From the Pliocene onward, however, illite becomes dominant and chlorite well-represented. Quantitative mineral differences among the three sites are significant up until the top of the Pliocene. But in the Pleistocene, the mineralogical composition becomes exactly the same at all sites. Data from the Caribbean region are used to interpret the results obtained. These involve two supply sources: (1) the adjacent islands that supply smectites and kaolinites, and (2) South America, which is the major source of illite and chlorite. The apparent northward migration of illite and chlorite on the Barbados Ridge complex and the changes reported in the quantitative distribution of the four clay minerals are most probably controlled by northerly currents along the northern coast of South America.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: 15.583350 * Median Longitude: -58.698433 * South-bound Latitude: 15.517000 * West-bound Longitude: -58.728300 * North-bound Latitude: 15.712300 * East-bound Longitude: -58.653700
Date/Time Start: 1981-02-13T00:00:00 * Date/Time End: 1981-02-28T00:00:00
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
3 datasets
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Datasets listed in this publication series
- Latouche, C; Maillet, N (1984): (Table 1) Mineralogy at DSDP Hole 78-541. https://doi.org/10.1594/PANGAEA.808741
- Latouche, C; Maillet, N (1984): (Table 2) Mineralogy at DSDP Site 78-542. https://doi.org/10.1594/PANGAEA.808742
- Latouche, C; Maillet, N (1984): (Table 3) Mineralogy at DSDP Site 78-543. https://doi.org/10.1594/PANGAEA.808748