Accession Number : AD0724465

Title :   Sedimentology. The Division of Clay Minerals in Deep Sediments of the Indian Ocean,

Corporate Author : NAVAL OCEANOGRAPHIC OFFICE WASHINGTON D C

Personal Author(s) : Heezen,B. C. ; Sabateer,G.

Report Date : 1971

Pagination or Media Count : 3

Abstract : The montmorillonite-illite-chlorite association characterizes the deep sediments of the Indian Ocean and is similar in fact to the South Pacific. The origin of these clay minerals will be in investigations into the alteration of the products of submarine volcanism. The examination of the surface portion of about thirty cores obtained in the deep basins of the Indian Ocean by the oceanographic vessel VEMA of the Lamont Geological Observatory permits us to present an attempt at separation of the clay minerals in these deep deposits. The geographic distribution of our sampling is very large but obviously excludes the coastal regions. The analyzed samples comprise genetically very different sediments: red clays, turbidites, globigerina oozes, etc. Despite this we are able to release some general results. The proportion of quartz by X-ray diffraction is small: 4% on the average. (Author)

Descriptors :   (*CLAY MINERALS, *INDIAN OCEAN), OCEAN BOTTOM SAMPLING, FORAMINIFERA, MUD, X RAY DIFFRACTION, QUARTZ, FRANCE

Subject Categories : Geology, Geochemistry and Mineralogy

Distribution Statement : APPROVED FOR PUBLIC RELEASE