Oligocene to middle Miocene radiolarian stratigraphy of southern high latitudes from Leg 113, Sites 689 and 690, Maud Rise

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doi: 10.2973/odp.proc.sr.113.200.1990
Author(s): Abelmann, Andrea
Author Affiliation(s): Primary:
Alfred Wegener Inst. Polar and Mar. Res., Bremerhaven, Federal Republic of Germany
Univ. R.I. at Narragansett, United States
Ocean Drilling Program, United States
Tex. A&M Univ., United States
Lamont-Doherty Geol. Obs., United States
Univ. Oslo, Norway
Alfred Wegener Inst. Polar and Ocean Res., Federal Republic of Germany
Univ. Southampton, United Kingdom
Univ. Tex. at Austin, United States
Woods Hole Oceanogr. Inst., United States
Fed. Inst. Tech., Switzerland
Univ. Tokyo, Japan
Mem. Univ. Newfoundland, Canada
CNRS-Luminy, France
R. Ont. Mus., Canada
Univ. Bremen, Federal Republic of Germany
Wesleyan Univ., United States
Fla. State Univ., United States
Volume Title: Proceedings of the Ocean Drilling Program, Weddell Sea, Antarctica, covering Leg 113 of the cruises of the Drilling Vessel JOIDES Resolution, Valparaiso, Chile, to East Cove, Falkland Islands, sites 689-697, 25 December 1986-11 March 1987
Volume Author(s): Barker, Peter F.; Kennett, James P.; O'Connell, Suzanne B.; Berkowitz, Stephen; Bryant, William R.; Burckle, Lloyd H.; Egeberg, Per Kristian; Fütterer, Dieter Karl; Gersonde, Rainer Erich; Golovchenko, Xenia; Hamilton, Norman; Lawver, Lawrence; Lazarus, David B.; Lonsdale, Malcolm J.; Mohr, Barbara A. R.; Nagao, Toshiyasu; Pereira, Christopher P. G.; Pudsey, Carol J.; Robert, Christian M.; Schandl, Eva S.; Spiess, Volkhard; Stott, Lowell D.; Thomas, Ellen; Thompson, Keith F. M.; Wise, Sherwood W., Jr.; Kennett, Diana M.; Masterson, Amanda; Stewart, Norman J.
Source: Proceedings of the Ocean Drilling Program, Weddell Sea, Antarctica, covering Leg 113 of the cruises of the Drilling Vessel JOIDES Resolution, Valparaiso, Chile, to East Cove, Falkland Islands, sites 689-697, 25 December 1986-11 March 1987, Peter F. Barker, James P. Kennett, Suzanne B. O'Connell, Stephen Berkowitz, William R. Bryant, Lloyd H. Burckle, Per Kristian Egeberg, Dieter Karl Fütterer, Rainer Erich Gersonde, Xenia Golovchenko, Norman Hamilton, Lawrence Lawver, David B. Lazarus, Malcolm J. Lonsdale, Barbara A. R. Mohr, Toshiyasu Nagao, Christopher P. G. Pereira, Carol J. Pudsey, Christian M. Robert, Eva S. Schandl, Volkhard Spiess, Lowell D. Stott, Ellen Thomas, Keith F. M. Thompson, Sherwood W. Wise, Jr., Diana M. Kennett, Amanda Masterson and Norman J. Stewart. Proceedings of the Ocean Drilling Program, Scientific Results, Vol.113, p.675-708. Publisher: Texas A & M University, Ocean Drilling Program, College Station, TX, United States. ISSN: 0884-5891
Note: In English. 92 refs.; illus. incl. 5 tables, 8 plates
Summary: At Sites 689 and 690, moderately to well preserved radiolarian assemblages were obtained from continuously recovered upper Oligocene and Neogene sequences. Based on radiolarian investigations, a biostratigraphic zonation for a time interval covering the late Oligocene to the middle Miocene is proposed. The radiolarian zonation comprises 10 zones. Five zones are new, and five zones previously defined by Chen (1975) were modified. The zones and the ranges of the nominate species are directly calibrated with a geomagnetic polarity record. This is the first attempt at a direct correlation of late Oligocene to middle Miocene radiolarian zones with the geomagnetic time scale. Six hiatuses were delineated in the studied upper Oligocene to middle Miocene sections. One major hiatus, spanning ca. 6 m.y., is between the upper Oligocene and the lower Miocene sequences. Another important hiatus separates the lower and middle Miocene sediments. As a base for the biostratigraphic investigations, a detailed taxonomic study of the recovered radiolarian taxa is achieved. Three new radiolarian species that occur in upper Oligocene and lower Miocene sediments are described (Cycladophora antiqua, Cyrtocapsella robusta, and Velicucullus altus). (Auth.)
Year of Publication: 1990
Research Program: ODP Ocean Drilling Program
Key Words: 12 Stratigraphy, Historical Geology and Paleoecology; Algae; Antarctic Ocean; Biostratigraphy; Cenozoic; Faunal studies; Invertebrata; Leg 113; Maud Rise; Microfossils; Miocene; Neogene; ODP Site 689; ODP Site 690; Ocean Drilling Program; Oligocene; Paleo-oceanography; Paleogene; Plantae; Protista; Radiolaria; Southern Ocean; Stratigraphy; Tertiary; Thallophytes; Weddell Sea; Zoning
Coordinates: S643100 S643100 E0030600 E0030600
S650937 S650937 E0011217 E0011217
Record ID: 1991051181
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