Stickley, Catherine E; Brinkhuis, Henk; Schellenberg, Stephen A; Sluijs, Appy; Röhl, Ursula; Fuller, Michael D; Grauert, M; Huber, Matthew; Warnaar, Jeroen; Wiliams, Graham L (2004): Geochemical measurements of the Tasmanian Gateway from ODP Hole 189-1172A [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.742605, Supplement to: Stickley, Catherine E; Brinkhuis, Henk; Schellenberg, Stephen A; Sluijs, Appy; Fuller, Michael D; Grauert, M; Röhl, Ursula; Warnaar, Jeroen; Wiliams, Graham L (2004): Timing and nature of the deepening of the Tasmanian Gateway. Paleoceanography, 19(4), PA4026, https://doi.org/10.1029/2004PA001022
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Abstract:
Tectonic changes that produced a deep Tasmanian Gateway between Australia and Antarctica are widely invoked as the major mechanism for Antarctic cryosphere growth and Antarctic Circumpolar Current (ACC) development during the Eocene/Oligocene (E/O) transition (34-33 Ma). Ocean Drilling Program (ODP) Leg 189 recovered near-continuous marine sedimentary records across the E/O transition interval at four sites around Tasmania. These records are largely barren of calcareous microfossils but contain a rich record of siliceous- and organic-walled marine microfossils. In this study we integrate micropaleontological, sedimentological, geochemical, and paleomagnetic data from Site 1172 (East Tasman Plateau) to identify four distinct phases (A-D) in the E/O Tasmanian Gateway deepening that are correlative among ODP Leg 189 sites. Phase A, prior to 35.5 Ma: minor initial deepening characterized by a shallow marine prodeltaic setting with initial condensation episodes. Phase B, 35.5-33.5 Ma: increased deepening marked by the onset of major glauconitic deposition and inception of energetic bottom-water currents. Phase C, 33.5-30.2 Ma: further deepening to bathyal depths, with episodic erosion by increasingly energetic bottom-water currents. Phase D, <30.2 Ma: establishment of stable, open-ocean, warm-temperate, oligotrophic settings characterized by siliceous-carbonate ooze deposition. Our combined evidence indicates that this early Oligocene Tasmanian Gateway deepening initially produced an eastward flow of relatively warm surface waters from the Australo-Antarctic Gulf into the southwestern Pacific Ocean. This "proto-Leeuwin" current fundamentally differs from previous regional reconstructions of eastward flowing cool water (e.g., a "proto-ACC") during the early Oligocene and thereby represents an important new constraint for reconstructing regional- to global-scale dynamics for this major global change event.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Latitude: -43.959750 * Longitude: 149.928260
Date/Time Start: 2000-04-22T06:45:00 * Date/Time End: 2000-04-26T09:30:00
Minimum DEPTH, sediment/rock: 354.62 m * Maximum DEPTH, sediment/rock: 364.31 m
Event(s):
189-1172A * Latitude: -43.959750 * Longitude: 149.928260 * Date/Time Start: 2000-04-22T06:45:00 * Date/Time End: 2000-04-26T09:30:00 * Elevation: -2621.9 m * Penetration: 522.6 m * Recovery: 483.72 m * Location: Tasman Sea * Campaign: Leg189 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 56 cores; 522.6 m cored; 0 m drilled; 92.6 % recovery
Parameter(s):
# | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
---|---|---|---|---|---|---|
1 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
2 | Grain size, mean | Grain size mean | µm | Stickley, Catherine E | ||
3 | Carbonates | Carb | % | Stickley, Catherine E | Coulometry | weight percent |
4 | Carbon, organic, total | TOC | % | Stickley, Catherine E | Coulometry | weight percent |
5 | δ18O, carbonate | δ18O carb | ‰ PDB | Stickley, Catherine E | Isotope ratio mass spectrometry | |
6 | δ13C, carbonate | δ13C carb | ‰ PDB | Stickley, Catherine E | Isotope ratio mass spectrometry |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
395 data points
Data
1 Depth sed [m] | 2 Grain size mean [µm] | 3 Carb [%] | 4 TOC [%] | 5 δ18O carb [‰ PDB] | 6 δ13C carb [‰ PDB] |
---|---|---|---|---|---|
354.62 | 46.56 | 1.32 | 1.13 | ||
354.72 | 45.23 | 1.38 | 1.10 | ||
354.84 | 50.48 | 1.37 | 1.01 | ||
354.96 | 55.06 | 1.28 | 1.00 | ||
355.06 | 53.90 | 1.39 | 0.99 | ||
355.18 | 53.73 | 1.59 | 1.11 | ||
355.30 | 52.22 | 0.31 | 1.55 | 1.16 | |
355.42 | 53.40 | 1.51 | 1.11 | ||
355.54 | 53.48 | 1.44 | 1.13 | ||
355.66 | 59.89 | 1.52 | 1.18 | ||
355.78 | 60.98 | 0.11 | 1.41 | 1.15 | |
355.92 | 55.64 | 1.49 | 1.26 | ||
356.04 | 1.42 | 1.44 | |||
356.10 | 43.15 | 0.15 | 1.19 | 1.32 | |
356.11 | 13.24 | ||||
356.14 | 1.24 | 1.31 | |||
356.17 | 17.02 | ||||
356.23 | 17.45 | ||||
356.28 | 11.58 | 1.32 | 1.41 | ||
356.29 | 13.53 | ||||
356.34 | 20.91 | 1.39 | 1.72 | ||
356.35 | 10.54 | ||||
356.41 | 11.24 | ||||
356.44 | 18.49 | 0.16 | 1.58 | 1.87 | |
356.47 | 14.30 | ||||
356.53 | 13.20 | ||||
356.56 | 1.25 | 1.95 | |||
356.59 | 10.58 | ||||
356.65 | 11.18 | ||||
356.66 | 1.44 | 1.67 | |||
356.71 | 9.46 | ||||
356.76 | 21.99 | 0.21 | 1.35 | 1.62 | |
356.77 | 10.09 | ||||
356.83 | 10.16 | ||||
356.84 | 1.27 | 1.32 | |||
356.89 | 11.08 | ||||
356.94 | 15.41 | 1.29 | 1.26 | ||
356.95 | 12.56 | ||||
357.01 | 14.88 | ||||
357.02 | 1.05 | 1.34 | |||
357.07 | 10.65 | ||||
357.12 | 13.24 | 0.32 | 1.10 | 1.26 | |
357.13 | 13.29 | ||||
357.19 | 8.89 | ||||
357.20 | 16.83 | 0.18 | 1.10 | 1.46 | |
357.25 | 12.68 | ||||
357.30 | 6.58 | 0.21 | 0.82 | 1.24 | |
357.31 | 19.64 | ||||
357.37 | 24.15 | ||||
357.43 | 8.78 | ||||
357.44 | 1.42 | 0.15 | |||
357.49 | 8.11 | ||||
357.55 | 11.74 | ||||
357.61 | 10.59 | ||||
357.62 | 0.44 | 0.27 | -1.29 | -5.07 | |
357.65 | 8.02 | ||||
357.69 | 9.39 | ||||
357.70 | 0.33 | 0.18 | |||
357.73 | 16.60 | ||||
357.77 | 9.83 | ||||
357.80 | 0.66 | ||||
357.81 | 18.18 | ||||
357.85 | 14.22 | ||||
357.89 | 13.13 | ||||
357.90 | 0.47 | 0.31 | |||
357.97 | 14.40 | ||||
358.00 | 0.29 | 0.22 | |||
358.01 | 24.40 | ||||
358.05 | 18.53 | ||||
358.09 | 10.67 | ||||
358.13 | 26.39 | ||||
358.16 | 0.30 | 0.25 | |||
358.17 | 42.53 | ||||
358.20 | 0.34 | 0.20 | |||
358.21 | 29.33 | ||||
358.22 | 0.48 | 0.19 | -1.71 | -13.44 | |
358.25 | 35.44 | ||||
358.33 | 4.32 | ||||
358.34 | 0.38 | 0.19 | -1.62 | -18.44 | |
358.37 | 15.78 | ||||
358.41 | 49.23 | ||||
358.45 | 12.17 | ||||
358.46 | 0.38 | 0.14 | -1.12 | -17.64 | |
358.49 | 14.60 | ||||
358.53 | 15.15 | ||||
358.56 | 0.36 | 0.17 | -0.54 | -19.44 | |
358.57 | 30.40 | ||||
358.61 | 9.36 | ||||
358.65 | 18.01 | ||||
358.66 | 0.33 | 0.30 | -1.18 | -18.64 | |
358.69 | 4.55 | ||||
358.70 | -1.30 | -18.64 | |||
358.72 | -1.59 | -17.44 | |||
358.73 | 7.06 | ||||
358.74 | -2.01 | -15.54 | |||
358.76 | 0.27 | 0.31 | |||
358.77 | 5.10 | ||||
358.78 | 0.22 | 0.31 | |||
358.81 | 7.22 | ||||
358.85 | 5.66 | ||||
358.88 | 0.24 | 0.35 | |||
358.89 | 3.87 | ||||
358.93 | 6.57 | ||||
358.97 | 10.36 | ||||
359.00 | 0.16 | 0.63 | |||
359.01 | 5.51 | ||||
359.05 | 9.25 | ||||
359.09 | 45.83 | ||||
359.10 | 0.31 | 0.51 | -1.11 | -6.74 | |
359.11 | 6.70 | ||||
359.17 | 7.57 | ||||
359.20 | 0.29 | 0.37 | |||
359.23 | 15.58 | ||||
359.24 | 0.21 | 0.41 | |||
359.29 | 17.63 | ||||
359.35 | 24.11 | ||||
359.36 | 0.56 | 0.55 | -1.69 | -4.38 | |
359.41 | 35.48 | ||||
359.42 | 0.41 | 0.56 | -2.30 | -7.01 | |
359.47 | 15.51 | ||||
359.53 | 18.46 | ||||
359.56 | 0.71 | 0.50 | -1.19 | -3.00 | |
359.59 | 24.82 | ||||
359.65 | 7.89 | ||||
359.70 | 1.42 | 0.48 | |||
359.71 | 6.88 | ||||
359.76 | 1.50 | 0.47 | -0.64 | -0.24 | |
359.77 | 7.69 | ||||
359.83 | 3.95 | ||||
359.89 | 3.14 | ||||
359.90 | 0.28 | 0.54 | |||
359.95 | 3.93 | ||||
359.98 | 0.22 | 0.46 | |||
360.01 | 13.42 | ||||
360.02 | 0.22 | ||||
360.07 | 23.96 | ||||
360.10 | 0.31 | 0.23 | |||
360.10 | 0.29 | 0.26 | |||
360.13 | 28.24 | ||||
360.14 | 0.23 | 0.23 | |||
360.19 | 64.36 | ||||
360.25 | 40.56 | ||||
360.30 | 0.25 | 0.25 | -2.25 | -17.84 | |
360.31 | 26.84 | ||||
360.37 | 42.57 | ||||
360.40 | 0.34 | 0.47 | -2.11 | -15.34 | |
360.43 | 13.04 | ||||
360.44 | 0.29 | 0.63 | |||
360.49 | 20.53 | ||||
360.55 | 44.02 | ||||
360.56 | 0.35 | 0.52 | |||
360.61 | 25.64 | ||||
360.65 | 20.78 | ||||
360.70 | 0.62 | 0.81 | -1.47 | -2.41 | |
360.73 | 23.08 | ||||
360.76 | -1.17 | -1.73 | |||
360.79 | 31.26 | ||||
360.80 | 1.25 | -0.75 | -0.45 | ||
360.82 | -0.51 | 0.25 | |||
360.85 | 62.65 | ||||
360.88 | 3.33 | 0.29 | -0.43 | 1.21 | |
360.91 | 30.49 | ||||
360.97 | 33.98 | ||||
361.00 | 4.08 | 0.82 | -0.28 | 1.27 | |
361.03 | 24.58 | ||||
361.09 | 32.99 | ||||
361.15 | 28.41 | ||||
361.20 | 4.83 | 0.74 | -0.26 | 1.42 | |
361.23 | 20.98 | ||||
361.27 | 29.26 | ||||
361.33 | 18.38 | ||||
361.39 | 17.61 | ||||
361.40 | 5.00 | 0.70 | -0.28 | 1.13 | |
361.45 | 26.38 | ||||
361.51 | 30.03 | ||||
361.57 | 33.73 | ||||
361.60 | 4.41 | 0.81 | -0.03 | 1.25 | |
361.63 | 20.22 | ||||
361.70 | -0.08 | 1.40 | |||
361.75 | 13.90 | ||||
361.80 | 4.91 | 0.96 | -0.19 | 1.25 | |
361.81 | 18.03 | ||||
361.87 | 18.36 | ||||
361.99 | 15.07 | ||||
362.00 | 5.75 | 0.51 | -0.19 | 1.13 | |
362.05 | 19.20 | ||||
362.14 | 4.91 | 0.75 | -0.06 | 1.16 | |
362.20 | -0.19 | 1.20 | |||
362.32 | 4.33 | 0.82 | -0.08 | 1.27 | |
362.54 | 4.17 | 0.83 | -0.26 | 1.20 | |
362.72 | 6.00 | 0.79 | -0.12 | 1.42 | |
362.94 | 7.83 | 1.02 | -0.25 | 1.41 | |
362.94 | 7.83 | 1.35 | -0.21 | 1.48 | |
363.14 | 11.41 | 0.92 | -0.17 | 1.55 | |
363.32 | 9.75 | 0.98 | |||
363.52 | 9.83 | 0.89 | -0.29 | 1.50 | |
363.60 | -0.29 | 1.42 | |||
363.70 | -0.11 | 1.48 | |||
363.80 | 9.25 | 0.83 | -0.18 | 1.63 | |
363.92 | -0.01 | 1.53 | |||
364.00 | -0.03 | 1.58 | |||
364.04 | 7.53 | 0.38 | -0.10 | 1.57 | |
364.04 | 8.15 | 0.75 | |||
364.07 | -0.08 | 1.63 | |||
364.27 | -0.07 | 1.65 | |||
364.31 | 8.66 | 0.84 | -0.16 | 1.65 |