Siesser, William G; Bralower, Timothy J; Tang, Cheng; Galbrun, Bruno (1992): Calcareous nannofossil biomagneochronology of ODP Hole 122-762B (Tables 1, 2) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.759936, Supplement to: Siesser, WG et al. (1992): Late Miocene-Quaternary calcareous nannofossil biomagnetochronology on the Exmouth Plateau, Northwest Australia. In: von Rad, U; Haq, BU; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 122, 677-681, https://doi.org/10.2973/odp.proc.sr.122.164.1992
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Published: 1992 (exact date unknown) • DOI registered: 2011-05-27
Abstract:
Drilling on the Exmouth Plateau during Ocean Drilling Program Leg 122 recovered an almost complete Cenozoic sequence at Site 762. Sediments at this site contain abundant, diverse, and generally well-preserved calcareous nannofossils. The continuity of the stratigraphic sequence, preservation of the taxa, and availability of magnetostratigraphy offered an opportunity to construct a first-order biomagnetochronologic history for late Miocene-Quaternary calcareous nannofossils at Site 762. Magnetochronologically dated FADs/LADs for 23 different nannofossils are given in this study. FADs or LADs for five of these species (Discoaster blackstockae, D. calcaris, Rhabdosphaera claviger, R. longistylis, and R. procera) have never been presented before. In addition, a LAD for Ceratolithus rugosus is new. We believe these new age datums, and the complementary information on previous datums, will add to the growing refinement of Cenozoic biomagnetochronology.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Latitude: -19.887000 * Longitude: 112.254000
Date/Time Start: 1988-07-26T11:00:00 * Date/Time End: 1988-07-27T03:25:00
Minimum DEPTH, sediment/rock: 4.9 m * Maximum DEPTH, sediment/rock: 109.4 m
Event(s):
122-762B * Latitude: -19.887000 * Longitude: 112.254000 * Date/Time Start: 1988-07-26T11:00:00 * Date/Time End: 1988-07-27T03:25:00 * Elevation: -1371.0 m * Penetration: 175.4 m * Recovery: 174.9 m * Location: South Indian Ridge, South Indian Ocean * Campaign: Leg122 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 19 cores; 175.4 m cored; 0 m drilled; 99.7 % recovery
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Ageprofile Datum Description | Ageprof dat des | Siesser, William G | FAD = first appearance datum, LAD = last appearance datum | ||
| 2 | DEPTH, sediment/rock | Depth sed | m | Geocode – mbsf | ||
| 3 | Age model | Age model | ka | Siesser, William G | this study | |
| 4 | Age model, optional | Age model opt | ka | Siesser, William G | compiled by Berggren et al. (1985) |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
88 data points
Data
| 1 Ageprof dat des | 2 Depth sed [m] | 3 Age model [ka] | 4 Age model opt [ka] |
|---|---|---|---|
| LAD Pseudoemiliania lacunosa | 4.9 | 300 | 470 |
| LAD Rhabdosphaera procera | 10.7 | 900 | |
| FAD Rhabdosphaera longistylis | 13.4 | 900 | |
| LAD Ceratolithus rugosus | 16.4 | 1100 | |
| FAD Gephyrocapsa oceanica | 23.9 | 1600 | 1680 |
| FAD Gephyrocapsa caribbeanica | 25.2 | 1700 | 1740 |
| LAD Discoaster brouweri | 28.2 | 1900 | 1900 |
| LAD Discoaster pentaradiatus | 36.2 | 2400 | 2400 |
| LAD Discoaster surculus | 36.2 | 2400 | 2400 |
| LAD Discoaster tamalis | 41.9 | 2700 | 2600 |
| LAD Discoaster variabilis s.l. | 41.9 | 2700 | 2900 |
| FAD Rhabdosphaera claviger | 52.4 | 3100 | |
| LAD Sphenolithus abies/S. neoabies | 57.4 | 3400 | 3500 |
| LAD Reticulofenestra pseudoumbilica | 63.9 | 3600 | 3500 |
| FAD Discoaster tamalis | 66.2 | 3700 | 3800 |
| FAD Pseudoemiliania lacunosa | 67.7 | 3800 | 3400 |
| LAD Amaurolithus delicatus | 67.7 | 3800 | 3700 |
| FAD Discoaster asymmetricus | 71.4 | 4000 | 4100 |
| LAD Ceratolithus acutus | 88.7 | 4800 | 4600 |
| LAD Amaurolithus tricorniculatus | 88.7 | 4800 | 3700 |
| LAD Triquetrorhabdulus rugosus | 90.4 | 4900 | 5000 |
| FAD Ceratolithus rugosus | 93.2 | 5100 | 4500 |
| LAD Amaurolithus amplificus | 93.2 | 5100 | 5600 |
| LAD Discoaster blackstockae | 98.9 | 5400 | |
| FAD Ceratolithus acutus | 99.9 | 5400 | 5000 |
| LAD Discoaster quinqueramus | 100.0 | 5400 | 5600 |
| FAD Amaurolithus tricorniculatus | 101.3 | 5600 | 6000 |
| FAD Discoaster blackstockae | 106.6 | 6300 | |
| FAD Amaurolithus amplificus | 109.4 | 6700 | 5900 |
| FAD Amaurolithus delicatus | 109.4 | 6700 | 6500 |
| FAD Discoaster surculus | 109.4 | 6700 | |
| LAD Discoaster calcaris | 109.4 | 6700 |