Upper Cretaceous benthic foraminifers and paleoenvironments, southern Kerguelen Plateau, Indian Ocean

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doi: 10.2973/odp.proc.sr.120.173.1992
Author(s): Quilty, Patrick G.
Author Affiliation(s): Primary:
Aust. Antarctic Div., Kingston, Tasmania, Australia
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
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.393-441. Publisher: Texas A & M University, Ocean Drilling Program, College Station, TX, United States. ISSN: 0884-5891
Note: In English. 119 refs.; illus. incl. 5 tables, 8 plates, sketch map
Summary: Over 200 species of benthic foraminifers are recorded from three Ocean Drilling Program sites on the southern Kerguelen Plateau drilled during Leg 120. They represent environments of deposition from neritic to bathyal during the Cenomanian to Maestrichtian. Many species are left in open nomenclature. Analysis of planktonic percentage, dominance/diversity, and comparison of faunal composition and structure shows that at all sites there is strong evidence of deepening water with time. The sediments at Sites 747 and 750 accumulated dominantly in open-ocean conditions of generally bathyal depths, increasing with time. The deepest faunas may represent lower bathyal depths. At Site 748C, deposition began in marine conditions so shallow that there is no foraminiferal component at all and the environment may have been estuarine or salt marsh, in part with reducing conditions. After the Cenomanian/Turonian, conditions became more open marine, but waters were still very shallow so that planktonic percentage remains low. Indexes other than foraminiferal suggest that the Kerguelen Plateau was vegetated through much of the Upper Cretaceous and that there may always have been islands or larger expanses of the plateau surface exposed. (Auth.)
Year of Publication: 1992
Research Program: ODP Ocean Drilling Program
Key Words: 12 Stratigraphy, Historical Geology and Paleoecology; Antarctica; Benthic taxa; Cretaceous; Environment; Faunal studies; Foraminifera; Indian Ocean; Invertebrata; Kerguelen Plateau; Leg 120; Mesozoic; Microfossils; Ocean Drilling Program; Paleoecology; Paleoenvironment; Protista; Sedimentation; Stratigraphy
Coordinates: S584302 S544838 E0811426 E0762427
Record ID: 1992037358
Copyright Information: GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from the Antarctic Bibliography, United States