The Cretaceous/Tertiary boundary in the Southern Indian Ocean; results from the coring operations of the Ocean Drilling Program

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doi: 10.1029/GM070p0275
Author(s): Pospichal, James J.; Huber, Brian T.
Author Affiliation(s): Primary:
Florida State University, Department of Geology, Tallahassee, FL, United States
University of Michigan, United States
University of Wales College of Cardiff, United Kingdom
Bundesanstalt für Geowissenschaften und Rohstoffe, Federal Republic of Germany
Lamont-Doherty Geological Observatory of Columbia University, United States
Smithsonian Institution, United States
Volume Title: Synthesis of results from scientific drilling in the Indian Ocean
Volume Author(s): Duncan, Robert A., editor; Rea, David K.; Kidd, Robert B.; von Rad, Ulrich; Weissel, Jeffrey K.
Source: Synthesis of results from scientific drilling in the Indian Ocean, edited by Robert A. Duncan, David K. Rea, Robert B. Kidd, Ulrich von Rad and Jeffrey K. Weissel. Geophysical Monograph, Vol.70, p.275-294. Publisher: American Geophysical Union, Washington, DC, United States. ISSN: 0065-8448. ISBN: 978-1-118-66803-0 CODEN: GPMGAD
Note: In English. 57 refs.; illus., incl. strat. cols., sketch map
Summary: Recent coring in the Indian Ocean during Ocean Drilling Program (ODP) Legs 119-122 has resulted in the recovery of several continuous or near continuous Cretaceous/Tertiary (K/T) boundary sections. Paleontological, sedimentological, and geochemical data have been compiled from these sequences and are summarized in this report with emphasis on calcareous nannofossil and foraminiferal distributions. Leg 119 recovered a complete K/T section at Site 738 on the southern tip of the Kerguelen Plateau at a latitude of 63°S. This high-latitude sequence was complemented by the Leg 120 Site 750 recovery of a nearly complete section at 55°S, also on the Kerguelen Plateau. These two sections are important in that they provide data from the high latitudes, where few sites have been drilled. Preservation of calcareous microfossils is generally moderate or poor at each site, but intervals with good preservation are present above and below the boundary at Sites 738 and 750. (Auth. mod.)
Year of Publication: 1992
Research Program: ODP Ocean Drilling Program
Key Words: 12 Stratigraphy, Historical Geology and Paleoecology; Algae; Australasia; Australia; Broken Ridge; Cenozoic; Continental margin; Cores; Cretaceous; Foraminifera; Indian Ocean; Invertebrata; K-T boundary; Kerguelen Plateau; Leg 119; Leg 120; Leg 121; Leg 122; Lower Paleocene; Magnetostratigraphy; Mesozoic; Nannofossils; Ocean Drilling Program; Paleocene; Paleogene; Plantae; Protista; Stratigraphic boundary; Tertiary; Upper Cretaceous
Coordinates: S684114 S492407 E0855147 E0713936
S584302 S544838 E0811426 E0762427
S310148 N052304 E0933525 E0873548
S203512 S163357 E1153337 E1121231
Record ID: 2007093166
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