Seismic stratigraphic correlations between ODP Sites 742 and 1166; implications for depositional paleoenvironments in Prydz Bay, Antarctica

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doi: 10.2973/odp.proc.sr.188.011.2004
Author(s): Erohina, Tzvetina; Cooper, Alan K.; Handwerger, David A.; Dunbar, Robert B.
Ocean Drilling Program, Leg 188, Shipboard Scientific Party, College Station, TX
Author Affiliation(s): Primary:
Stanford University, Department of Geological and Earth Sciences, Stanford, CA, United States
Other:
Australian Geological Survey Organisation, Australia
Ocean Drilling Program, United States
University of Leicester, United Kingdom
University of Nebraska, United States
University of Texas at Arlington, United States
Oxford University, United Kingdom
Istituto Nazionale di Geofisica e Vulcanologia, Italy
Norwegian Polar Institute, Norway
Christan-Albrechts-Universität zu Kiel, Federal Republic of Germany
University of Utah, United States
University of Toronto at Scarborough, Canada
Curtin University of Technology, Australia
Boston University, United States
British Antarctic Survey, United Kingdom
Ohio State University, United States
Florida State University, United States
University of Tasmania, Australia
Istituto Nazionale di Oceanografia e di Geofisico Sperimentale, Italy
University of Oulu, Finland
Jacques Whitford and Associates, Canada
California State University, United States
Lamont-Doherty Earth Observatory, United States
Volume Title: Proceedings of the Ocean Drilling Program; scientific results; Prydz Bay-Cooperation Sea, Antarctica; glacial history and paleoceanography; covering Leg 188 of the cruises of the drilling vessel JOIDES Resolution; Fremantle, Australia, to Hobart, Tasmania; Sites 1165-1167; 10 January-11 March 2000
Volume Author(s): Cooper, Alan K.; O'Brien, Philip E.; Richter, Carl; Barr, Samantha R.; Bohaty, Steven M.; Claypool, George E.; Damuth, John E.; Erwin, Patrick S.; Florindo, Fabio; Forsberg, Carl Fredrik; Grützner, Jens; Handwerger, David A.; Januszczak, Nicole N.; Kaiko, Alexander; Kryc, Kelly A.; Lavelle, Mark; Passchier, Sandra; Pospichal, James J.; Quilty, Patrick G.; Rebesco, Michele A.; Strand, Kari O.; Taylor, Brian; Theissen, Kevin M.; Warnke, Detlef A.; Whalen, Patricia A.; Whitehead, Jason M.; Williams, Trevor
Source: Proceedings of the Ocean Drilling Program; scientific results; Prydz Bay-Cooperation Sea, Antarctica; glacial history and paleoceanography; covering Leg 188 of the cruises of the drilling vessel JOIDES Resolution; Fremantle, Australia, to Hobart, Tasmania; Sites 1165-1167; 10 January-11 March 2000, Alan K. Cooper, Philip E. O'Brien, Carl Richter, Samantha R. Barr, Steven M. Bohaty, George E. Claypool, John E. Damuth, Patrick S. Erwin, Fabio Florindo, Carl Fredrik Forsberg, Jens Grützner, David A. Handwerger, Nicole N. Januszczak, Alexander Kaiko, Kelly A. Kryc, Mark Lavelle, Sandra Passchier, James J. Pospichal, Patrick G. Quilty, Michele A. Rebesco, Kari O. Strand, Brian Taylor, Kevin M. Theissen, Detlef A. Warnke, Patricia A. Whalen, Jason M. Whitehead and Trevor Williams; Ocean Drilling Program, Leg 188, Shipboard Scientific Party, College Station, TX. Proceedings of the Ocean Drilling Program, Scientific Results (CD ROM), Vol.188, 21p. Publisher: Texas A&M University, Ocean Drilling Program, College Station, TX, United States. ISSN: 1096-2514
Note: In English. Available only on CD-ROM in PDF format and on the Web in PDF and HTML. 18 refs.CD-ROM format, ISSN 1096-2514; WWW format, ISSN 1096-7451; sects., strat. cols., 3 tables, sketch map
Summary: New high-resolution seismic reflection data recorded between Ocean Drilling Program Sites 1166 and 742 are interpreted to link acoustic features to lithologic units at the two drill sites. New findings include: (1) Site 1166 drilled a deeper (older) section than Site 742; (2) Paleogene units mostly do not extend between the two sites, except the deformed sand unit (Units III [1166] and VI [742]); (3) the preglacial to glacial unconformity sampled at Site 1166 lies ∼50 m below Site 742; (4) the Paleogene flooding surface at Site 1166 lies on top of Unit III, not within, as previously reported; and (5) Pliocene diatomaceous horizons correlated between the sites based on downhole logging cannot be traced between the two sites in seismic data. For the study region, we infer a progression from a preglacial setting on a low-relief alluvial plain to glaciomarine and subglacial settings. Late Cretaceous alluvial plain and lagoonal environments evolved to a late Eocene broad fluvial channel system or outwash plain. Marine transgression infilled and buried the channel system with glacial deposits that were extensively eroded during the Oligocene to late Miocene. Late Neogene environments were mostly subglacial with episodes of reduced ice and biogenic deposition.
Year of Publication: 2004
Research Program: ODP Ocean Drilling Program
Key Words: 12 Stratigraphy, Historical Geology and Paleoecology; 20 Geophysics, Applied; Antarctica; Cenozoic; Correlation; Cretaceous; Depositional environment; Geophysical methods; Geophysical profiles; Geophysical surveys; Leg 119; Leg 188; Lithostratigraphy; Mesozoic; Neogene; ODP Site 1166; ODP Site 742; Ocean Drilling Program; Paleo-oceanography; Paleoenvironment; Prydz Bay; Seismic methods; Seismic profiles; Seismic stratigraphy; Southern Ocean; Surveys; Tertiary
Coordinates: S674200 S674100 E0744800 E0744700
S673259 S673258 E0752417 E0752416
Record ID: 2004083820
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