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Li, Qianyu; McGowran, Brian; Brunner, Charlotte A (2003): Planktonic foraminiferal stratigraphy and datum levels of ODP Leg 182 sites [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.785833, Supplement to: Li, Q et al. (2003): Neogene planktonic foraminiferal biostratigraphy of Sites 1126, 1128, 1130, 1132, and 1134, ODP Leg 182, Great Australian Bight. In: Hine, AC; Feary, DA; Malone, MJ (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 182, 1-67, https://doi.org/10.2973/odp.proc.sr.182.005.2003

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Abstract:
Planktonic foraminifers from Ocean Drilling Program Leg 182, Holes 1126B and 1126C, 1128B and 1128C, 1130A and 1130B, 1132B, and 1134A and 1134B confirm the neritic record that during the early Miocene the Great Australian Bight region was in a cool-temperate regime with abundant Globoturborotalita woodi. Warm marine environments started to develop in the later part of the early Miocene, and the region became warm temperate to subtropical in the early middle Miocene with abundant Globigerinoides, Orbulina, and Globorotalia, corresponding to global warming at the Miocene climatic optimum. Fluctuations between cool- and warm-temperate conditions prevailed during the late Miocene, as indicated by abundant Globoconella conoidea and Menardella spp. A major change in planktonic foraminiferal assemblages close to the Miocene/Pliocene boundary not only drove many Miocene species into extinction but also brought about such new species as Globorotalia crassaformis and Globoconella puncticulata. Warm-temperate environments continued into the early and mid-Pliocene before being replaced by cooler conditions, supporting numerous Globoconella inflata and Globigerina quinqueloba.
Based on data from this study and published results from the Australia-New Zealand region, we established a local planktonic foraminifer zonation scheme for separating the southern Australian Neogene (SAN) into Zones SAN1 to SAN19 characterizing the Miocene and Zones SAN20 to SAN25 characterizing the Pliocene. The Neogene sections from the Great Australian Bight are bounded by hiatuses of ~0.5 to >3 m.y. in duration, although poor core recovery in some holes obscured a proper biostratigraphic resolution. A total of 15 hiatuses, numbered 1 to 15, were identified as synchronous events from the base of the Miocene to the lower part of the Pleistocene. We believe that these are local manifestations of major third-order boundaries at about (1) 23.8, (2) 22.3, (3) 20.5, (4) 18.7, (5) 16.4, (6) 14.8, (7) 13.5, (8) 11.5, (9) 9.3, (10) 7.0, (11) 6.0, (12) 4.5, (13) 3.5, (14) 2.5, and (15) 1.5 Ma, respectively. This hiatus-bounded Neogene succession samples regional transgressions and stages of southern Australia and reveals its stepwise evolutionary history.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: -33.655768 * Median Longitude: 127.626822 * South-bound Latitude: -34.391180 * West-bound Longitude: 127.263960 * North-bound Latitude: -33.316030 * East-bound Longitude: 128.066830
Date/Time Start: 1998-10-26T06:45:00 * Date/Time End: 1998-12-04T11:30:00
Event(s):
182-1126B * Latitude: -33.509350 * Longitude: 128.066550 * Date/Time Start: 1998-10-26T06:45:00 * Date/Time End: 1998-10-27T14:15:00 * Elevation: -783.8 m * Penetration: 263.3 m * Recovery: 162.35 m * Location: Great Australian Bight * Campaign: Leg182 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 30 cores; 253.5 m cored; 0 m drilled; 64 % recovery
182-1128B * Latitude: -34.391180 * Longitude: 127.590760 * Date/Time Start: 1998-11-03T19:35:00 * Date/Time End: 1998-11-05T15:15:00 * Elevation: -3874.6 m * Penetration: 280.7 m * Recovery: 231.57 m * Location: Indian Ocean * Campaign: Leg182 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 30 cores; 280.7 m cored; 0 m drilled; 82.5 % recovery
182-1130A * Latitude: -33.420180 * Longitude: 127.602330 * Date/Time Start: 1998-11-11T22:07:00 * Date/Time End: 1998-11-13T18:15:00 * Elevation: -486.7 m * Penetration: 380.4 m * Recovery: 312.47 m * Location: Great Australian Bight * Campaign: Leg182 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 41 core; 380.4 m cored; 0 m drilled; 82.1 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
14 datasets

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Datasets listed in this publication series

  1. Li, Q; McGowran, B; Brunner, CA (2003): (Table T2) Datum levels of ODP Hole 182-1126B. https://doi.org/10.1594/PANGAEA.785828
  2. Li, Q; McGowran, B; Brunner, CA (2003): (Table AT1) Planktonic foraminiferal stratigraphy of ODP Hole 182-1126B. https://doi.org/10.1594/PANGAEA.785911
  3. Li, Q; McGowran, B; Brunner, CA (2003): (Table AT2) Planktonic foraminiferal stratigraphy of ODP Hole 182-1126C. https://doi.org/10.1594/PANGAEA.785912
  4. Li, Q; McGowran, B; Brunner, CA (2003): (Table T3) Datum levels of ODP Hole 182-1128B. https://doi.org/10.1594/PANGAEA.785829
  5. Li, Q; McGowran, B; Brunner, CA (2003): (Table AT3) Planktonic foraminiferal stratigraphy of ODP Hole 182-1128B. https://doi.org/10.1594/PANGAEA.785913
  6. Li, Q; McGowran, B; Brunner, CA (2003): (Table AT4) Planktonic foraminiferal stratigraphy of ODP Hole 182-1128C. https://doi.org/10.1594/PANGAEA.785914
  7. Li, Q; McGowran, B; Brunner, CA (2003): (Table T4) Datum levels of ODP Hole 182-1130A. https://doi.org/10.1594/PANGAEA.785830
  8. Li, Q; McGowran, B; Brunner, CA (2003): (Table AT5) Planktonic foraminiferal stratigraphy of ODP Hole 182-1130A. https://doi.org/10.1594/PANGAEA.785917
  9. Li, Q; McGowran, B; Brunner, CA (2003): (Table AT6) Planktonic foraminiferal stratigraphy of ODP Hole 182-1130B. https://doi.org/10.1594/PANGAEA.785916
  10. Li, Q; McGowran, B; Brunner, CA (2003): (Table T5) Datum levels of ODP Site 182-1132. https://doi.org/10.1594/PANGAEA.785831
  11. Li, Q; McGowran, B; Brunner, CA (2003): (Table AT7) Planktonic foraminiferal stratigraphy of ODP Hole 182-1132B. https://doi.org/10.1594/PANGAEA.785918
  12. Li, Q; McGowran, B; Brunner, CA (2003): (Table T6) Datum levels of ODP Hole 182-1134A. https://doi.org/10.1594/PANGAEA.785832
  13. Li, Q; McGowran, B; Brunner, CA (2003): (Table AT8) Planktonic foraminiferal stratigraphy of ODP Hole 182-1134A. https://doi.org/10.1594/PANGAEA.785919
  14. Li, Q; McGowran, B; Brunner, CA (2003): (Table AT9) Planktonic foraminiferal stratigraphy of ODP Hole 182-1134B. https://doi.org/10.1594/PANGAEA.785921