Neogene controls on hydrothermal activity and paleoceanography of the Southeast Pacific Ocean

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doi: 10.2973/dsdp.proc.92.140.1986
Author(s): Rea, David K.; Leinen, Margaret
Author Affiliation(s): Primary:
Univ. Mich., Dep. Atmos. and Oceanic Sci., Ann Arbor, MI, United States
Other:
Univ. Mich., United States
Lamont-Doherty Geol. Obs., United States
Scripps Inst. Oceanogr., United States
Univ. Paris, France
Justus-Liebig Univ., Federal Republic of Germany
Woods Hole Oceanogr. Inst., United States
Fla. State Univ., United States
Oreg. State Univ., United States
Akita Univ., Japan
Open Univ., United Kingdom
Univ. R.I., United States
Volume Title: Initial reports of the Deep Sea Drilling Project covering Leg 92 of the cruises of the drilling vessel Glomar Challenger, Papeete, Tahiti, to Balboa, Panama, February-April, 1983
Volume Author(s): Leinen, Margaret; Rea, David K.; Anderson, Roger N.; Becker, Keir; Boulègue, Jacques J.; Erzinger, Jörg; Gieskes, Joris M.; Goldberg, David; Goldfarb, Marjorie S.; Goldsborough, Robert; Hobart, Michael A.; Kastner, Miriam; Knüttel, Stephen; Lyle, Mitchell W.; Moos, Daniel; Newmark, Robin L.; Nishitani, Tadashi; Owen, Robert M.; Pearce, Julian A.; Romine, Karen; Stephen, Ralph A.; Bailey, Marian
Source: Initial reports of the Deep Sea Drilling Project covering Leg 92 of the cruises of the drilling vessel Glomar Challenger, Papeete, Tahiti, to Balboa, Panama, February-April, 1983, Margaret Leinen, David K. Rea, Roger N. Anderson, Keir Becker, Jacques J. Boulègue, Jörg Erzinger, Joris M. Gieskes, David Goldberg, Marjorie S. Goldfarb, Robert Goldsborough, Michael A. Hobart, Miriam Kastner, Stephen Knüttel, Mitchell W. Lyle, Daniel Moos, Robin L. Newmark, Tadashi Nishitani, Robert M. Owen, Julian A. Pearce, Karen Romine, Ralph A. Stephen and Marian Bailey. Initial Reports of the Deep Sea Drilling Project, Vol.92, p.597-617. Publisher: Texas A & M University, Ocean Drilling Program, College Station, TX, United States. ISSN: 0080-8334 CODEN: IDSDA6
Note: In English. 46 refs.; illus. incl. 4 tables, charts, sketch maps
Summary: The composition of hydrothermal material is determined by its source and modified by sea-water. The flux of hydrothermal sediment increases during episodes of tectonic activity and ridge jumps, but is independent of spreading rate. Basalts from a deep hole in fast-spreading crust revealed three stages of alteration: an early deuteric stage, a reducing stage and a later oxidative stage.
Year of Publication: 1986
Research Program: DSDP Deep Sea Drilling Project
IPOD International Phase of Ocean Drilling
Key Words: 07 Marine Geology and Oceanography; Alteration; Cenozoic; Deep Sea Drilling Project; East Pacific; East Pacific Rise; Environment; Hydrothermal alteration; Hydrothermal conditions; Hydrothermal processes; IPOD; Leg 92; Marine environment; Metasomatism; Neogene; Oceanography; Pacific Ocean; Paleo-oceanography; Pore water; Review; Sedimentation; Sediments; South Pacific; Southeastern Pacific Ocean; Spreading centers; Tertiary
Coordinates: S192706 N011400 W0834349 W1294614
Record ID: 1987017225
Copyright Information: GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom