Christie, David M. et al. (2001): Site 1163

Leg/Site/Hole:
ODP 187
ODP 187 1163
Identifier:
2003-045876
georefid

10.2973/odp.proc.ir.189.114.2001
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 1163
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
Site 1193 is located in segment B4. The floor magnetic age at this site is about 17 my, about 1 my younger than at sites 1162 and 1164. This site placement was designed to test the distribution of Pacific and Indian-type mantle across the three zones at 17-18 Ma (Segment B4, B5, and Zone A). Hole 1163A is 15.7 m (33% core recovery) of a medium gray moderately plagioclase olivine phyric pillow basalt, which is divided into two lithologic units. Unit 1 is slightly altered, and Unit 2 is a slightly to moderately altered medium gray aphyric basalt. Ba and Zr systematics of the glass indicate that Indian-type mantle was present beneath Segment B4 approximately 17 m.y. ago. The systematics indicate an Indian- to transitional Pacific-type mantle source beneath Segment B4 of the AAD at 17 m.y. ago MORB fields defined by zero-age Southeast Indian Ridge (SEIR) lavas dredged between 123 and 133 degrees East.(LEL)
Coverage:Geographic coordinates:
North:-44.2530
West:126.5430East: 126.5430
South:-44.2530

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; marine sediments; Mid-Indian Ridge; middle Miocene; mineral composition; Miocene; Neogene; Ocean Drilling Program; ocean floors; ODP Site 1163; sediments; seismic methods; seismic profiles; Southeast Indian Ridge; surveys; Tertiary; volcanic rocks;

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