van der Does, Michèlle; Lamy, Frank; Krätschmer, Stephan; Stuut, Jan-Berend W; Völker, Christoph; Werner, Martin; Winckler, Gisela (2023): Lithogenic thorium fluxes into South Atlantic surface sediments [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.961716, In: van der Does, M et al. (2023): Grain-size distributions, End-member modelling and Th-fluxes of South Atlantic surface sediments [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.961706
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Abstract:
We present the characteristics of the lithogenic components of seafloor surface sediments covering the entire South Atlantic Ocean (from the equator to Antarctica). These samples were collected by multiple seagoing expeditions between 1988 and 2005. This dataset describes the 230-Thorium-normalized fluxes of 232-Thorium, and the calculated specific fluxes for the four end-members that were obtained for the grain-size distributions (as presented in doi:10.1594/PANGAEA.961711). In addition, we present dust fluxes from model simulations at the same stations as the direct observations.
Keyword(s):
Related to:
van der Does, Michèlle; Lamy, Frank; Krätschmer, Stephan; Stuut, Jan-Berend W; Völker, Christoph; Werner, Martin; Winckler, Gisela (2023): End-member composition of South Atlantic surface sediments. PANGAEA, https://doi.org/10.1594/PANGAEA.961711
Coverage:
Median Latitude: -44.817603 * Median Longitude: -9.470131 * South-bound Latitude: -69.889000 * West-bound Longitude: -56.810000 * North-bound Latitude: 0.100000 * East-bound Longitude: 28.546670
Date/Time Start: 1988-03-04T00:00:00 * Date/Time End: 2005-05-14T07:09:00
Minimum Elevation: -5584.0 m * Maximum Elevation: -486.0 m
Event(s):
GeoB1035-2 * Latitude: -21.611667 * Longitude: 5.043333 * Date/Time: 1988-03-04T00:00:00 * Elevation: -4447.0 m * Location: Angola Basin * Campaign: M6/6 * Basis: Meteor (1986) * Method/Device: MultiCorer (MUC) * Comment: Foram.-schlamm, weiß
GeoB1117-3 * Latitude: -3.816660 * Longitude: -14.903330 * Date/Time: 1989-03-05T00:00:00 * Elevation: -3977.0 m * Penetration: 0.44 m * Recovery: 0.43 m * Location: Brazil Basin * Campaign: M9/4 * Basis: Meteor (1986) * Method/Device: Giant box corer (GKG) * Comment: Foram.-sand, tonig
GeoB1306-1 * Latitude: -35.206667 * Longitude: -26.765000 * Date/Time: 1991-01-28T00:00:00 * Elevation: -4057.0 m * Recovery: 0.35 m * Location: Hunter Channel * Campaign: M15/2 (06MT15_2) * Basis: Meteor (1986) * Method/Device: MultiCorer (MUC)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | van der Does, Michèlle | |||
| 2 | LONGITUDE | Longitude | van der Does, Michèlle | Geocode | ||
| 3 | LATITUDE | Latitude | van der Does, Michèlle | Geocode | ||
| 4 | ELEVATION | Elevation | m a.s.l. | van der Does, Michèlle | Geocode | |
| 5 | Depth, top/min | Depth top | m | van der Does, Michèlle | ||
| 6 | Depth, bottom/max | Depth bot | m | van der Does, Michèlle | ||
| 7 | DEPTH, sediment/rock | Depth sed | m | van der Does, Michèlle | Geocode | |
| 8 | Lithogenic, flux | Litho flux | g/cm2/ka | van der Does, Michèlle | ICP-MS, Thermo Fisher Scientific, Element 2 | 230Th normalization |
| 9 | Lithogenic, flux, standard deviation | Litho flux std dev | ± | van der Does, Michèlle | ICP-MS, Thermo Fisher Scientific, Element 2 | 1 sigma |
| 10 | End member, flux | EM flux | g/cm2/ka | van der Does, Michèlle | Calculated | EM1; based on lithogenic flux and relative end-member contribution |
| 11 | End member, flux | EM flux | g/cm2/ka | van der Does, Michèlle | Calculated | EM2; based on lithogenic flux and relative end-member contribution |
| 12 | End member, flux | EM flux | g/cm2/ka | van der Does, Michèlle | Calculated | EM3; based on lithogenic flux and relative end-member contribution |
| 13 | End member, flux | EM flux | g/cm2/ka | van der Does, Michèlle | Calculated | EM4; based on lithogenic flux and relative end-member contribution |
| 14 | Dust, aeolian, flux | Dust aeol flux | g/cm2/ka | van der Does, Michèlle | Calculated | based on lithogenic flux and relative end-member contribution |
| 15 | Dust, aeolian, flux | Dust aeol flux | g/cm2/ka | van der Does, Michèlle | Simulated | simulated |
Change history:
2024-01-29T09:05:06 – 2 columns added: 1-sigma values for the Th lithogenic flux and dust fluxes from a model simulation
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 3 (ProcLevel3)
Size:
1246 data points