Interstitial water studies on small core samples, Deep Sea Drilling Project, Leg 1

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doi: 10.2973/dsdp.proc.1.120.1969
Author(s): Manheim, F. T.; Sayles, F. L.; Friedman, Irving
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.403-407. ISSN: 0080-8334 CODEN: IDSDA6
Note: In English. Washington, D. C., U.S. Govt. Printing Office; illus.
Summary: The most dramatic variations in pore water composition occurred in Holes 2 and 3 in the Gulf of Mexico. Both holes showed a strong increase in salinity with depth, evidently owing to diffusion from underlying salt bodies. However, on Challenger Knoll (Hole 2) a sharp drop in salinity was observed in the cap rock of the salt dome in which chloride fell to only 4.8 percent. The drop is attributed to production of fresh water during the formation of native sulfur. Outside of the Gulf of Mexico, changes in total salinity with depth did not exceed a few percent, but differences in diagenetic modification of the ionic ratios of sea water were pronounced. In nondiapiric strata in the Gulf of Mexico (Hole 1) both magnesium and potassium were depleted in the pore waters, whereas in the open ocean holes (4, 5, 6, and 7), potassium appeared in excess. Water content (porosity) of the cores was irregular.
Year of Publication: 1969
Research Program: DSDP Deep Sea Drilling Project
Key Words: 07 Marine Geology and Oceanography; Atlantic Ocean; Chemical composition; Chemically precipitated rocks; Cores; DSDP Site 2; DSDP Site 3; Deep Sea Drilling Project; Evaporites; Gulf of Mexico; Leg 1; North Atlantic; Pore water; Salinity; Salt; Salt domes; Samples; Sedimentary rocks
Coordinates: N232718 N232718 W0923512 W0923512
N230100 N230100 W0920124 W0920124
Record ID: 1969037469
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