Planktonic foraminiferal biostratigraphy of Leg 166

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doi: 10.2973/odp.proc.sr.166.101.2000
Author(s): Wright, James D.; Kroon, Dick
Ocean Drilling Program, Leg 166, Shipboard Scientific Party, College Station, TX
Author Affiliation(s): Primary:
University of Maine, Department of Geological Sciences, Orono, ME, United States
Other:
Ocean Drilling Program, United States
Geological Survey of Japan, Japan
Johann Wolfgang Goethe-Universität, Federal Republic of Germany
University of South Carolina, United States
University of Hawaii, United States
CNRS-Centre de Sédimentologie et de Géochimie de la Surface, France
University of Bourgogne, France
University of Michigan, United States
Rice University, United States
University of Sydney, Australia
Lamont-Doherty Earth Observatory, United States
Vrije Universiteit, Netherlands
Nova University, United States
University of Edinburgh, United Kingdom
ETH-Zentrum, Switzerland
University of East Anglia, United Kingdom
University of Houston, United States
Christian-Albrechts-Universität zu Kiel, Federal Republic of Germany
Akita University, Japan
University of Copenhagen, Denmark
Leicester University, United Kingdom
University of Maine, United States
Volume Title: Proceedings of the Ocean Drilling Program, scientific results, Bahamas Transect; covering Leg 166 of the cruises of the drilling vessel JOIDES Resolution, San Juan, Puerto Rico, to Balboa Harbor, Panama, sites 1003-1009, 17 February-10 April 1996
Volume Author(s): Swart, Peter K.; Eberli, Gregor P.; Malone, Mitchell J.; Anselmetti, Flavio S.; Arai, Kohsaku; Bernet, Karin H.; Betzler, Christian; Christensen, Beth A.; De Carlo, Eric Heinen; Déjardin, Pascale M.; Emmanuel, Laurent; Frank, Tracy D.; Haddad, Geoffrey A.; Isern, Alexandra R.; Katz, Miriam E.; Kenter, Jeroen A. M.; Kramer, Philip A.; Kroon, Dick; McKenzie, Judith A.; McNeill, Donald F.; Montgomery, Paul; Nagihara, Seiichi; Pirmez, Carlos; Reijmer, John J. G.; Sato, Tokiyuki; Schovsbo, Niels H.; Williams, Trevor; Wright, James D.; Lowe, Ginny
Source: Proceedings of the Ocean Drilling Program, scientific results, Bahamas Transect; covering Leg 166 of the cruises of the drilling vessel JOIDES Resolution, San Juan, Puerto Rico, to Balboa Harbor, Panama, sites 1003-1009, 17 February-10 April 1996, Peter K. Swart, Gregor P. Eberli, Mitchell J. Malone, Flavio S. Anselmetti, Kohsaku Arai, Karin H. Bernet, Christian Betzler, Beth A. Christensen, Eric Heinen De Carlo, Pascale M. Déjardin, Laurent Emmanuel, Tracy D. Frank, Geoffrey A. Haddad, Alexandra R. Isern, Miriam E. Katz, Jeroen A. M. Kenter, Philip A. Kramer, Dick Kroon, Judith A. McKenzie, Donald F. McNeill, Paul Montgomery, Seiichi Nagihara, Carlos Pirmez, John J. G. Reijmer, Tokiyuki Sato, Niels H. Schovsbo, Trevor Williams, James D. Wright and Ginny Lowe; Ocean Drilling Program, Leg 166, Shipboard Scientific Party, College Station, TX. Proceedings of the Ocean Drilling Program, Scientific Results, Vol.166, p.3-12. Publisher: Texas A & M University, Ocean Drilling Program, College Station, TX, United States. ISSN: 0884-5891
Note: In English. 15 refs.CD-ROM format, ISSN 1096-2514; WWW format, ISSN 1096-7451; all chapters are also available on the included CD-ROM and on the Web in PDF format; strat. cols., 1 table, sketch map
Summary: Planktonic foraminifers recovered from Leg 166 drilling showed a progression from well-preserved to poorly preserved specimens with increasing depth. The high carbonate production and shedding from the Great Bahama Bank diluted the pelagic components to the extent that planktonic foraminifers had scattered occurrences, particularly in the lower Pliocene and/or uppermost Miocene sections in Sites 1003-1005 and Site 1007. A reasonable planktonic foraminiferal biostratigraphic framework was possible for these sites because samples from thin, clay-rich layers contained moderately to well-preserved specimens throughout the lower Pliocene to Miocene interval. Better preservation of the specimens occurred in these layers because they were dominated by terrigenous sedimentation. The planktonic foraminiferal zonation shows that Neogene sediments with a basal age of earliest Miocene were recovered from Holes 1003A-1003C. Four unconformities were identified on the basis of planktonic foraminiferal taxa. Upper Pliocene to Holocene sediments were recovered from Hole 1004. Sediment diagenesis prevented placement of the Pliocene/Pleistocene boundary. Middle Miocene to Pleistocene sediments were recovered from Holes 1005A-1005C. A large unconformity separates the lowermost upper Miocene and lower Pliocene sediments. At Site 1006, a complete middle Miocene to Pleistocene section was recovered, in contrast to the sites more proximal to the Bahamian platform. The lower Pliocene recorded high sedimentation rates. Holes 1007A-1007C recovered Neogene and uppermost Oligocene sediments. Three prominent unconformities were identified at the Pliocene/Pleistocene boundary, upper/lower Pliocene boundary and the Miocene/Pliocene boundary. The lower upper Miocene to uppermost Oligocene section appears to be complete at this site.
Year of Publication: 2000
Research Program: ODP Ocean Drilling Program
Key Words: 12 Stratigraphy, Historical Geology and Paleoecology; Atlantic Ocean; Biostratigraphy; Caribbean Sea; Cenozoic; Foraminifera; Great Bahama Bank; Invertebrata; Leg 166; Lower Pliocene; Microfossils; Miocene; Neogene; North Atlantic; ODP Site 1003; ODP Site 1004; ODP Site 1005; ODP Site 1006; ODP Site 1007; Ocean Drilling Program; Planktonic taxa; Pleistocene; Pliocene; Protista; Quaternary; Species diversity; Tertiary; Unconformities; Upper Miocene
Coordinates: N233000 N250000 W0790000 W0794500
Record ID: 2001002880
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