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Wei, Wuchang; Wise, Sherwood W (1993): Paleogene calcareous nannofossil biostratigraphy of DSDP Hole 21-210. PANGAEA, https://doi.org/10.1594/PANGAEA.786499, Supplement to: Villa, Giuliana; Wei, Wuchang (1993): Data report: Paleogene calcareous nannofossil biostratigraphy of DSDP Site 210, offshore northeastern Australia. In: McKenzie, JA; Davies, PJ; Palmer-Julson, A; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 133, 779-785, https://doi.org/10.2973/odp.proc.sr.133.217.1993

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Abstract:
The major objectives of Leg 133 were (1) to define the evolution of the carbonate platforms on the northeastern Australian margin, including their relationship to adjoining basins; and (2) to understand the effects of climate and sea level on their development in space and time (Davies, McKenzie, Palmer-Julson, et al., 1991, doi:10.2973/odp.proc.ir.133.1991). Sixteen sites were drilled, and more than 5.5 km of Neogene core was recovered during Leg 133. However, recovery of Paleogene sediments was unexpectedly poor (a total of a few meters), and the sediments were poorly dated because of strong diagenesis. On the other hand, Site 210 drilled in this region during Leg 21 yielded an expanded Paleogene section, which contains abundant calcareous microfossils. Biostratigraphic information for this section given in Burns, Andrews, et al. (1973, doi:10.2973/dsdp.proc.21.1973) was based primarily on shipboard results. Detailed calcareous nannofossil and planktonic foraminifer biostratigraphies have not been published. Here we provide a detailed documentation of the calcareous nannofossil distribution in the section, biostratigraphically date the section using the modern nannofossil zonation of Okada and Bukry (1980. doi:10.1016/0377-8398(80)90016-X), and construct an age-depth curve based on current knowledge of nannofossil magnetobiochronology. This should provide a useful Paleogene biostratigraphic reference in the northeastern Australian sea, as Site 210 has apparently yielded the most complete Paleogene record in the region. The detailed biostratigraphy should provide a better age constraint for the regional Eocene-Oligocene hiatus recognized previously (e.g., Jenkins and Srinivasan, 1986, doi:10.2973/dsdp.proc.90.113.1986) and should be useful for future studies on various aspects of Paleogene history of the northeastern Australian sea.
Project(s):
Coverage:
Latitude: -13.766500 * Longitude: 152.896300
Date/Time Start: 1971-12-30T00:00:00 * Date/Time End: 1971-12-30T00:00:00
Event(s):
21-210 * Latitude: -13.766500 * Longitude: 152.896300 * Date/Time: 1971-12-30T00:00:00 * Elevation: -4643.0 m * Penetration: 711 m * Recovery: 261.9 m * Location: South Pacific/Coral Sea/BASIN * Campaign: Leg21 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 48 cores; 432 m cored; 18 m drilled; 60.6 % recovery
Size:
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