Geochemistry and mineralogy of sediments from southeast Explorer Rift (50 N, 130 W), northeast Pacific : in search of evidence of hydrothermal activity

Hansen, Kenneth Frederick

Publication date

January 1983

Publisher

University of British Columbia

Abstract

The composition of sediments in a portion of Explorer Spreading Centre, Explorer Deep, is examined. Clay mineral, bulk mineral and chemical compositions (Al, Ba, Ca, CI, Co, Cu, Fe, K, Mg, Mn, Ni, P, Si, Na, Ti, Zn) of hemipelagic sediments on the floor of Explorer Deep are compared to those on adjacent flanks, and to Explorer Deep metalliferous sediment, to determine the extent of hydrothermal mineral formation. Explorer Deep hemipelagic sediments are composed of quartz, opal, feldspar, amphibole, carbonate, phyllosiIIcates, iron and manganese hydroxides,illmenlte, rutile and hematite. Individual phyllosiIlcates have distinct size-distributions; fine clay (<0.2 urn) is composed almost entirely of smectite. In contrast, illite and chlorite...

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Geochemistry and mineralogy of sediments from southeast Explorer Rift (50 N, 130 W), northeast Pacific : in search of evidence of hydrothermal activity

Abstract

Extracted data

Geochemistry and mineralogy of sediments from southeast Explorer Rift (50 N, 130 W), northeast Pacific : in search of evidence of hydrothermal activity

Abstract

Extracted data

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