Summary of coccolith biostratigraphy

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doi: 10.2973/dsdp.proc.1.125.1969
Author(s): Bukry, David; Bramlette, M. N.
Volume Title: Initial reports of the Deep Sea Drilling Project — V. 1, Leg 1 of cruises of Glomar Challenger, Orange, Tex., to Hoboken, N. J., Aug.-Sept. 1968
Source: Initial reports of the Deep Sea Drilling Project — V. 1, Leg 1 of cruises of Glomar Challenger, Orange, Tex., to Hoboken, N. J., Aug.-Sept. 1968. Initial Reports of the Deep Sea Drilling Project, Vol.1, p.621-623. ISSN: 0080-8334 CODEN: IDSDA6
Note: In English. Washington, D. C., U.S. Govt. Printing Office
Summary: Holes drilled at seven sites investigated geology of the ocean floor in three major areas. Miocene-Pleistocene sections in the Gulf of Mexico varied widely in thickness, but were related by lithologic and paleontologic stratigraphy; coccoliths present were reworked Cretaceous species. Cores from the Blake-Bahama basin show very thin Tertiary deposits; 15 contain Cretaceous sediments, and one Late Jurassic. There are about 400 m of older sediment not yet sampled. On the Bermuda Rise, a sequence of coccoliths in red clay bridges the Pliocene-Pleistocene boundary. Below this is a sequence of green turbidite and chert containing middle Eocene microfossils. Two cores from below the chert were of nonfossiliferous clay, indicating the ocean floor has been very deep here for at least 50 m.y. One value of coccoliths to deep-sea research is the speed with which they can be used to date a sample.
Year of Publication: 1969
Research Program: DSDP Deep Sea Drilling Project
Key Words: 09 Paleontology, Paleobotany; Algae; Atlantic Ocean; Biostratigraphy; Coccolithophoraceae; Cores; Deep Sea Drilling Project; Gulf of Mexico; Leg 1; Microfossils; North Atlantic; Plantae
Coordinates: N230000 N310000 W0670000 W0930000
Record ID: 1969037476
Copyright Information: GeoRef, Copyright 2017 American Geosciences Institute. Reference includes data from Bibliography and Index of North American Geology, U. S. Geological Survey, Reston, VA, United States