These data include sediment black carbon and total organic carbon concentrations and stable carbon ratio (13C) values. These data were collected on multiple cruises in throughout the Atlantic; specifically, in the Amazon Delta (EN-480; July 2010), Sierra Leone Rise (EN-481; August 2010), Niger Delta (GeoB 4901, GeoB 4903, GeoB 4904, GeoB 4905, GeoB 4907, and GeoB 4908; February/March 1998), Senegal Delta (GeoB 9501; April/May 2003), and Northwest Argentina Basin (GeoB 2814; July/August 1994). Se...
Show moreSediment samples were collected via a 4-barrel multi-corer (R/V Endeavor) and box corer (GeoB; samples previously collected from the Department of Geosciences at Bremen University, see MARUM GeoB Core Repository https://www.marum.de/en/Infrastructure/MARUM-GeoB-Core-Repository.html). Sediments collected on the R/V Endeavor were segmented into 1-2 cm sections, dried in a drying oven (35°C) and homogenized via mortar and pestle; sediments from GeoB had previously been segmented into 1-10cm sections, freeze-dried and ground with a mortar and pestle. All sediments were decalcified using 10% hydrochloric acid and kept frozen until processed. Black carbon was isolated using the chemothermal oxidation at 375°C method.
Instruments:
Sediment samples from the GeoB cores were quantified using an Elementar Vario MICRO cube elemental analyzer coupled to an Isoprime100 isotope ratio-mass spectrometer (IR-MS); sediments collected on EN-480 and EN-481 were analyzed on a Carlo Erba elemental analyzer coupled to a GV Optima 588 system IR-MS. The detection limit of both instruments was 100 ng of carbon.
Location
Amazon Delta (approximately: 4 N, 47 W; 2400-3500m); Sierra Leone Rise (approximately: 7 N, 20 W; 2800-3800m), Niger Delta (approximately: 1 N, 8 E; 1200-3000m), Senegal Delta (approximately: 17 N, 17 W; 330 m), and Northwest Argentina Basin (approximately: 37 S, 39 W; 5000m)
Cruise or Deployment
R/V Endeavor (EN-480, EN-481; July/August 2010); GeoB (4901, 4903, 4904, 4905, 4907, 4908; February/March 1998), GeoB (9501; April/May 2003), GeoB (2814, July/August 1994)
* R/V Endeavor cruises were attached to this dataset as "Deployments."
* Collection information for the GeoB samples previously collected from the Department of Geosciences at Bremen University can be found in table "Atlantic Sediment Cruise Information" in the Supplemental Files section of this dataset.
Lohmann, R., St. Laurent, K. A. (2023) Atlantic sediment black carbon, total organic carbon, and stable carbon ratio (13C) values from samples collected using a multi-corer and box corer from multiple cruises throughout the Atlantic between 1994 and 2010. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2023-09-14 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.908373.1 [access date]
Terms of Use
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