Christie, David M. et al. (2001): Site 1162

Leg/Site/Hole:
ODP 187
ODP 187 1162
Identifier:
2003-045875
georefid

10.2973/odp.proc.ir.189.113.2001
doi

Creator:
Christie, David M.
Oregon State University, College of Oceanic and Atmospheric Sciences, Corvallis, OR, United States
author

Pedersen, Rolf B.
Universitetet i Bergen, Norway
author

Miller, D. Jay
Ocean Drilling Program, United States
author

Balzer, Vaughn G.
ODP/Naturalia et Biologia, France
author

Einaudi, Florence
University of London, United Kingdom
author

Gee, M. A. Mary
Christian-Albrechts-Universitaet zu Kiel, Federal Republic of Germany
author

Hauff, Folkmar
Isotope Geosciences Laboratory, United Kingdom
author

Kempton, Pamela D.
Academia Sinica, Taiwan
author

Liang, Wen-Tzong
Centre de Recherches Petrographiques et Geochimiques, France
author

Lysnes, Kristine
University of Tokyo, Japan
author

Meyzen, Christine M.
Universitetet i Bergen, Norway
author

Pyle, Douglas G.
Ocean Drilling Program, United States
author

Russo, Christopher J.
ODP/Naturalia et Biologia, France
author

Sato, Hiroshi
University of London, United Kingdom
author

Thorseth, Ingunn H.
Christian-Albrechts-Universitaet zu Kiel, Federal Republic of Germany
author

Identification:
Site 1162
2001
In: Christie, David M., Pedersen, Rolf B., Miller, D. Jay, Balzer, Vaughn G., Einaudi, Florence, Gee, M. A. Mary, Hauff, Folkmar, Kempton, Pamela D., Liang, Wen-Tzong, Lysnes, Kristine, Meyzen, Christine M., Pyle, Douglas G., Russo, Christopher J., Sato, Hiroshi, Thorseth, Ingunn H., Bridges, Brenda (editor), Proceedings of the Ocean Drilling Program, initial reports, mantle reservoirs and migration associated with Australian Antarctic rifting; covering Leg 187 of the cruises of the drilling vessel JOIDES Resolution; Fremantle, Australia, to Fremantle, Australia; sites 1152-1164, 16 November 1999-10 January 2000
Texas A&M University, Ocean Drilling Program, College Station, TX, United States
187
Hole 1162 A produced 2.6 m (8% recovery) of mixed igneous clasts overlying a polymict fault breccia with an array of clasts that can be divided into 2 metamorphic types. It was abandoned because it was unlikely to yield fresh volcanic samples suitable for analysis. Hole 1162A is moderately to altered basalt. Hole 1162B is 9.9 m of dolomite (Unit 1) overlying a dolomite-cemented basalt breccia (Unit 2). Unit 1 is only pale pinkish dolomite; Unit 2 is highly to very highly altered angular to subangular basalt clasts in a dolomite-centered breccia. The glass sample analyzed has a Ba content at the high end, demonstrating a Pacific type mantle affinity at this site. This confirms the Indian-type mantle incursion between Sites 1158 and 1162, and indicates Indian-type mantle was present beneath this part of western Zone A for 2-3 m.y.(LEL)
Coverage:Geographic coordinates:
North:-44.3754
West:129.1118East: 129.1118
South:-44.3800

Igneous and metamorphic petrology; Antarctic Ocean; Australian-Antarctic discordance; basalts; Cenozoic; cores; geochemistry; geophysical methods; geophysical profiles; geophysical surveys; igneous rocks; Indian Ocean; Leg 187; lower Miocene; marine sediments; Mid-Indian Ridge; mineral composition; Miocene; Neogene; Ocean Drilling Program; ocean floors; ODP Site 1162; sediments; seismic methods; seismic profiles; Southeast Indian Ridge; surveys; Tertiary; volcanic rocks;

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