Borrelli, Chiara; Koorapati, Ravi Kiran; Lam, Adriane R: Miocene to Early Pliocene carbonate accumulation rates from the western South Atlantic, IODP Site 393-U1583 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.993321 (dataset in review)
Abstract:
Here, we present carbonate accumulation rates from a site drilled in the western South Atlantic, Internation Ocean Discovery Program (IODP) Site U1583 (Hole C). Carbonate accumulation rates were calculated by multiplying calcium carbonate weight percent with mass accumulation rates. Calcium carbonate weight percent was measured at the Lamont-Doherty Earth Observatory of Columbia University (New York, NY) using an UIC inc. CM5012 CO2 coulometer with an Automate FX Inc. automated sample acidification and delivery carousel. For the analysis, a carbonate standard was used (GFS Chemicals Calcium Carbonate Standard - ACS). Mass accumulation rates were calculated as the product of linear sedimentation rate and dry bulk density, which was determined using the approach described in Coggon et al. (2024, doi:10.14379/iodp.proc.390393.102.2024). Sample ages were astronomically tuned for the older part of the record (~13.8-23.2 Ma), whereas the ages for the youngest part of the record (~3.8-13.7 Ma) were calculated using to the shipboard age model (Teagle et al., 2024, doi:10.14379/iodp.proc.390393.107.2024) and reported according to the Geological Time Scale 2020 (Gradstein et al., 2020, doi:10.1016/C2020-1-02369-3). Orbitally tuned ages using the Laskar 2010 solution and agreeing with the GTS 2020 model.
Keyword(s):
References:
Coggon, Rosalind M; Teagle, Damon A H; Sylvan, Jason B; Reece, Julia; Estes, Emily R; Williams, Trevor J; Christeson, Gail L; IODP Expedition 390/393 Scientists (2024): South Atlantic Transect. Proceedings of the International Ocean Discovery Program, International Ocean Discovery Program, 390/393, https://doi.org/10.14379/iodp.proc.390393.2024
Gradstein, Felix M; Ogg, James G; Schmitz, Mark D; Ogg, Gabi (2020): Geologic Time Scale 2020. Elsevier, https://doi.org/10.1016/C2020-1-02369-3
Coverage:
Latitude: -30.710000 * Longitude: -20.433900
Date/Time Start: 2022-07-06T18:00:00 * Date/Time End: 2022-07-07T15:40:00
Minimum DEPTH, sediment/rock: 11.010 m * Maximum DEPTH, sediment/rock: 37.120 m
Event(s):
393-U1583C * Latitude: -30.710000 * Longitude: -20.433900 * Date/Time Start: 2022-07-06T18:00:00 * Date/Time End: 2022-07-07T15:40:00 * Elevation: -4214.6 m * Number of cores: 13 * Penetration: 107.5 m * Recovery: 102.5 % * Location: Central South Atlantic * Campaign: Exp393 * Basis: Joides Resolution * Method/Device: Core drilling (CDRILL) * Comment: Cores = APC: 12, XCB: 1
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Borrelli, Chiara | |||
| 2 | Sample code/label | Sample label | Borrelli, Chiara | |||
| 3 | Sample comment | Sample comment | Borrelli, Chiara | DSDP/ODP/IODP sample designation | ||
| 4 | DEPTH, sediment/rock | Depth sed | m | Borrelli, Chiara | IODP Depth Scale Terminology | Geocode – Mid-Depth (m, CSF-B) |
| 5 | Age | Age | Ma | Borrelli, Chiara | Age model, Gradstein et al. (2020) GTS2020 | |
| 6 | Age | Age | Ma | Borrelli, Chiara | Age model, GTS 2020, orbital solution, Laskar et al. (2010) | |
| 7 | Calcium carbonate | CaCO3 | % | Borrelli, Chiara | CO2 coulometer, UIC inc., CM5012 | |
| 8 | Gamma ray attenuation | GRA | Borrelli, Chiara | Bartington MS2C (WRMSL and STMSL) | ||
| 9 | Porosity | Poros | % | Borrelli, Chiara | According to Coggon et al. (2024) | |
| 10 | Density | Density | g/cm3 | Borrelli, Chiara | According to Coggon et al. (2024) | |
| 11 | Linear sedimentation rate | LSR | cm/ka | Borrelli, Chiara | Calculated | |
| 12 | Accumulation rate, mass | MAR | mg/cm2/ka | Borrelli, Chiara | Calculated | |
| 13 | Accumulation rate, calcium carbonate | CaCO3 AR | mg/cm2/ka | Borrelli, Chiara | Calculated |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1043 data points