Lower Cretaceous volcanic rocks on continental margins and their relationship to the Kerguelen Plateau

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doi: 10.2973/odp.proc.sr.120.118.1992
Author(s): Storey, Michael; Kent, R. W.; Saunders, A. D.; Salters, Vincent J. M.; Hergt, J.; Whitechurch, Hubert; Sevigny, James H.; Thirlwall, Matthew F.; Leat, P.; Ghose, N. C.; Gifford, M.
Author Affiliation(s): Primary:
Univ. Leicester, Leicester, United Kingdom
Univ. Louis Pasteur, France
Ocean Drilling Program, United States
Univ. Claude Bernard, France
Woods Hole Oceanogr. Inst., United States
Rühr Univ. Bochum, Federal Republic of Germany
Britoil, United Kingdom
Bur. Mineral Resour., Geol. and Geophys., Australia
Ohio State Univ., United States
Univ. Toronto, Canada
Univ. Nebraska, United States
Brown Univ., United States
Kobe Univ., Japan
EAWAG/ETH, Switzerland
Alfred Wegener Inst. Polar and Mar. Res., Federal Republic of Germany
Tohoku Univ., United States
Lamont-Doherty Geol. Obs., United States
Australian Antarctic Division, Australia
Massachusetts Institute of Technology, United States
Univ. Leicester, United Kingdom
Kyoto Univ., Japan
Univ. R. I., United States
Open Univ. Milton Keynes, United Kingdom
Ecole et Observatoire de Physique du Globe, France
Univ. Calgary, Canada
Royal Holloway and Bedford New Coll., United Kingdom
Univ. Durham, United States
Patna Univ., India
Volume Title: Proceedings of the Ocean Drilling Program, Central Kerguelen Plateau; covering Leg 120 of the cruises of the drilling vessel JOIDES Resolution, Fremantle, Australia, to Fremantle, Australia, sites 747-751, 20 February to 30 April 1988; Part 1
Volume Author(s): Wise, Sherwood W., Jr.; Schlich, Roland; Palmer Julson, Amanda A.; Aubry, Marie-Pierre; Berggren, William A.; Bitschene, Peter Rene; Blackburn, Neal A.; Breza, James R.; Coffin, Millard F.; Harwood, David M.; Heider, Franz; Holmes, Mary Anne; Howard, William R.; Inokuchi, Hiroo; Kelts, Kerry; Lazarus, David B.; Mackensen, Andreas; Maruyama, Toshiaki; Munschy, Marc; Pratson, Elizabeth Lewis; Quilty, Patrick G.; Rack, Frank; Salters, Vincent J. M.; Sevigny, James H.; Storey, Michael; Takemura, Atsushi; Watkins, David K.; Whitechurch, Hubert; Zachos, James; Barbu, Eva M.
Source: Proceedings of the Ocean Drilling Program, Central Kerguelen Plateau; covering Leg 120 of the cruises of the drilling vessel JOIDES Resolution, Fremantle, Australia, to Fremantle, Australia, sites 747-751, 20 February to 30 April 1988; Part 1, Sherwood W. Wise, Jr., Roland Schlich, Amanda A. Palmer Julson, Marie-Pierre Aubry, William A. Berggren, Peter Rene Bitschene, Neal A. Blackburn, James R. Breza, Millard F. Coffin, David M. Harwood, Franz Heider, Mary Anne Holmes, William R. Howard, Hiroo Inokuchi, Kerry Kelts, David B. Lazarus, Andreas Mackensen, Toshiaki Maruyama, Marc Munschy, Elizabeth Lewis Pratson, Patrick G. Quilty, Frank Rack, Vincent J. M. Salters, James H. Sevigny, Michael Storey, Atsushi Takemura, David K. Watkins, Hubert Whitechurch, James Zachos and Eva M. Barbu. Proceedings of the Ocean Drilling Program, Scientific Results, Vol.120, p.33-53. Publisher: Texas A & M University, Ocean Drilling Program, College Station, TX, United States. ISSN: 0884-5891
Note: In English. 83 refs.; illus. incl. 4 tables, sketch map
Summary: Widespread Lower Cretaceous magmatism occurred along the Indian-Australian/antarctic margins and in the juvenile Indian Ocean during the rifting of eastern Gondwana. The formation of this magmatic province probably began around 120-130 Ma with the eruption of basalts on the Naturaliste Plateau and at Bunbury, western Australia. On the northeast margin of India, activity began around 117 Ma with the Rajmahal continental basalts and associated lamprophyre intrusions. The formation of the Kerguelen Plateau in the Indian Ocean began no later than 114 Ma. Ultramafic lamprophyres (alnoites) were emplaced in the Prince Charles Mountains near the antarctic continental margin about 110 Ma. These events are considered to be related to a major mantle plume, the remnant of which is situated beneath the region of Kerguelen and Heard islands at the present day. Geochemical data are presented for each of these volcanic suites, and are indicative of complex interactions between asthenosphere-derived magmas and the continental lithosphere. Kerguelen Plateau basalts have Sr and Nd isotopic compositions lying outside the field for Indian Ocean mid-ocean ridge basalts (MORB) but, with the exception of Site 738 at the southern end of the plateau, within the range of more recent hotspot basalts from Kerguelen and Heard islands. (Auth. mod.)
Year of Publication: 1992
Research Program: ODP Ocean Drilling Program
Key Words: 05 Petrology, Igneous and Metamorphic; 16 Structural Geology; Antarctica; Basalts; Chemical composition; Continental margin; Cretaceous; Evolution; Gondwana; Igneous rocks; Indian Ocean; Kerguelen Plateau; Lamprophyres; Leg 120; Lithosphere; Mesozoic; Naturaliste Plateau; Ocean Drilling Program; Petrology; Plumes; Plutonic rocks; Prince Charles Mountain; Rajmahal Volcanic Formation; Reconstruction; Tectonics; Tholeiite; Trace elements; Volcanic rocks
Coordinates: S584302 S544838 E0811426 E0762427
Record ID: 1992037338
Copyright Information: GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from the Antarctic Bibliography, United States