Hochmuth, Katharina; Gohl, Karsten; Leitchenkov, German L; Sauermilch, Isabel; Whittaker, Joanne; Uenzelmann-Neben, Gabriele; Davy, Bryan; DeSantis, Laura (2020): Paleobathymetry and sediment thickness of the Southern Ocean since 34 Ma [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.918663
Always quote citation above when using data! You can download the citation in several formats below.
Abstract:
Paleobathymetric models and sediment thickness estimations give insight into the development of the Antarctic Ice Sheets, Southern Ocean current systems and opening of the Southern Ocean Gateways since the Eocene/Oligocene Boundary. A more sophisticated assessment of the paleobathymetry and the sediment deposition in the Southern Ocean are essential for robust reconstructions of paleoclimate and paleooceanographic scenarios.
For this reconstruction, we used all available reflection seismic data (refer to Hochmuth et al. (2020) Fig. 1 for data coverage) and borehole information within the Southern Ocean. Paleobathymetric grids are calculated using the backstripping method as implemented in the BalPal code (Wold et al. 1992). Plate tectonic reconstruction follows Müller et al. (2018). The following paleobathymetric reconstruction time slices are available: Eocene/Oligocene Boundary (34 Ma), early Oligocene (27 Ma), Oligocene/Miocene Transition (24 Ma), early Miocene (21 Ma), middle Miocene (14 Ma), late Miocene (10.5 Ma), early Pliocene (5 Ma), Pliocene/Pleistocene Boundary (2.6 Ma) and middle Pleistocene (0.65 Ma).
The sediment thickness maps presented here include pre- and post-34 Ma sediment deposition as well as the specific time intervals of the early Oligocene (34 Ma – 27 Ma), late Oligocene to early Miocene (27 Ma – 24 Ma), early Miocene (24 Ma – 21 Ma), early to middle Miocene (21 Ma – 14 Ma), middle to late Miocene (14 Ma – 10.5 Ma), late Miocene (10.5 Ma – 5 Ma), Pliocene (5 Ma – 2.65 Ma) and Pleistocene (2.6 Ma to recent).
Keyword(s):
Supplement to:
Hochmuth, Katharina; Gohl, Karsten; Leitchenkov, German L; Sauermilch, Isabel; Whittaker, Joanne; Uenzelmann-Neben, Gabriele; Davy, Bryan; de Santis, Laura (2020): The Evolving Paleobathymetry of the Circum‐Antarctic Southern Ocean Since 34 Ma: A Key to Understanding Past Cryosphere‐Ocean Developments. Geochemistry, Geophysics, Geosystems, 21(8), https://doi.org/10.1029/2020GC009122
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | File content | Content | Hochmuth, Katharina | |||
| 2 | File name | File name | Hochmuth, Katharina | |||
| 3 | File format | File format | Hochmuth, Katharina | |||
| 4 | File size | File size | kByte | Hochmuth, Katharina | ||
| 5 | Uniform resource locator/link to file | URL file | Hochmuth, Katharina |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
95 data points
Data
| 1 Content | 2 File name | 3 File format | 4 File size [kByte] | 5 URL file |
|---|---|---|---|---|
| Paleobathymetry SouthernOcean 0.65Ma | Paleobathymetry_SouthernOcean_0.65Ma | NC | 10184.035 | Paleobathymetry_SouthernOcean_0.65Ma.nc |
| Paleobathymetry SouthernOcean 10.5Ma | Paleobathymetry_SouthernOcean_10.5Ma | NC | 10184.035 | Paleobathymetry_SouthernOcean_10.5Ma.nc |
| Paleobathymetry SouthernOcean 14Ma | Paleobathymetry_SouthernOcean_14Ma | NC | 10184.031 | Paleobathymetry_SouthernOcean_14Ma.nc |
| Paleobathymetry SouthernOcean 2.6Ma | Paleobathymetry_SouthernOcean_2.6Ma | NC | 10184.035 | Paleobathymetry_SouthernOcean_2.6Ma.nc |
| Paleobathymetry SouthernOcean 21Ma | Paleobathymetry_SouthernOcean_21Ma | NC | 10184.031 | Paleobathymetry_SouthernOcean_21Ma.nc |
| Paleobathymetry SouthernOcean 24Ma | Paleobathymetry_SouthernOcean_24Ma | NC | 10184.031 | Paleobathymetry_SouthernOcean_24Ma.nc |
| Paleobathymetry SouthernOcean 27Ma | Paleobathymetry_SouthernOcean_27Ma | NC | 10184.031 | Paleobathymetry_SouthernOcean_27Ma.nc |
| Paleobathymetry SouthernOcean 34Ma | Paleobathymetry_SouthernOcean_34Ma | NC | 10184.031 | Paleobathymetry_SouthernOcean_34Ma.nc |
| Paleobathymetry SouthernOcean 5Ma | Paleobathymetry_SouthernOcean_5Ma | NC | 10184.031 | Paleobathymetry_SouthernOcean_5Ma.nc |
| Sediment thickness 21Ma-24Ma | Sedimenthickness_21Ma-24Ma | NC | 6183.293 | Sedimenthickness_21Ma-24Ma.nc |
| Sediment thickness 10.5Ma-14Ma | Sedimentthickness_10.5Ma-14Ma | NC | 6183.297 | Sedimentthickness_10.5Ma-14Ma.nc |
| Sediment thickness 14Ma-21Ma | Sedimentthickness_14Ma-21Ma | NC | 6183.293 | Sedimentthickness_14Ma-21Ma.nc |
| Sediment thickness 2.6Ma-5Ma | Sedimentthickness_2.6Ma-5Ma | NC | 6183.293 | Sedimentthickness_2.6Ma-5Ma.nc |
| Sediment thickness 2.6Ma-recent | Sedimentthickness_2.6Ma-recent | NC | 6183.297 | Sedimentthickness_2.6Ma-recent.nc |
| Sediment thickness 24Ma-27Ma | Sedimentthickness_24Ma-27Ma | NC | 6183.293 | Sedimentthickness_24Ma-27Ma.nc |
| Sediment thickness 27Ma-34Ma | Sedimentthickness_27Ma-34Ma | NC | 6183.293 | Sedimentthickness_27Ma-34Ma.nc |
| Sediment thickness 34Ma-present | Sedimentthickness_34Ma-present | NC | 6183.309 | Sedimentthickness_34Ma-present.nc |
| Sediment thickness 5Ma-10.5Ma | Sedimentthickness_5Ma-10.5Ma | NC | 6183.293 | Sedimentthickness_5Ma-10.5Ma.nc |
| Sediment thickness pre-34Ma | Sedimentthickness_pre-34Ma | NC | 6183.293 | Sedimentthickness_pre-34Ma.nc |