Veeran, Yoganandan (2023): Organic carbon, calcium carbonate contents, mass accumulation rate, burial efficiency, and paleoproductivity record from a sediment core SK-313 GC01 southeastern Arabian Sea [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.946959
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Abstract:
Variations in the paleoproductivity during the last 14.4 kyr have been studied using organic carbon (OC), calcium carbonate (CaCO3) contents and their mass accumulation rate and burial efficiency, in a 14C-dated sediment core (SK 313 GC-01; 4.82-m) from the southeastern Arabian Sea. The core was sub-sampled at 1-cm intervals for the top 1 m and 2-cm intervals for the rest of the core. All subsamples were oven-dried at 40°C and finely powdered in an agate mortar with a pestle. CaCO3 content was determined by Ethylene Diamine Tetra-Acetic acid (EDTA) titration using Patton & Reader as an indicator (Shapiro and Brannock, 1962, doi:10.3133/b1144A). The OC content was determined by chromic acid digestion and subsequent titration with ferrous ammonium sulfate as described in Gaudette et al. (1974, doi:10.1306/74D729D7-2B21-11D7-8648000102C1865D). We note that paleoproductivity was the highest during the Bølling–Allerød warm event; a step-wise decreased productivity during the Younger Dryas cold period, the lowest productivity during the early Holocene, and increased and stabilized productivity during the mid-late Holocene interval.
Keyword(s):
Related to:
Veeran, Yoganandan (submitted): A 14.4 kyr record of paleoproductivity changes in the southeastern Arabian Sea. Marine Geology
Funding:
Coverage:
Latitude: 10.501800 * Longitude: 75.375000
Date/Time Start: 2014-06-08T15:49:11 * Date/Time End: 2014-06-08T15:49:11
Minimum Elevation: -513.2 m * Maximum Elevation: -513.2 m
Event(s):
Comment:
Accumulation rate (MAR) of OC and CaCO3 (g/m²/a) was calculated using the following formula: OC (CaCO3) = (OC (CaCO3)×DBD×LSR)/100.
Paleoproductivity (g/cm²/a) was estimated using the following formula by Stein (1986, hdl:10013/epic.14450): Paleoproductivity (PP) = 5.31 [OC (DBD)]0.71× LSR0.07 × WD0.45.
Burial efficiency (BE, %) of OC was estimated using the following formula by Bhushan et al. (2001, doi:10.1016/S0025-3227(01)00179-7): BE (%) = [(Burial Flux)/Productivity]×100.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | AGE | Age | ka BP | Veeran, Yoganandan | Geocode | |
| 2 | Carbon, organic | C org | % | Veeran, Yoganandan | See description in dataset comment | wt. % |
| 3 | Calcium carbonate | CaCO3 | % | Veeran, Yoganandan | See description in dataset comment | wt. % |
| 4 | Accumulation rate, carbon, organic | Acc rate C org | g/cm2/a | Veeran, Yoganandan | See description in dataset comment | |
| 5 | Accumulation rate, calcium carbonate | Acc rate CaCO3 | g/cm2/a | Veeran, Yoganandan | See description in dataset comment | |
| 6 | Burial rate of organic carbon | OC bur | g/cm2/a | Veeran, Yoganandan | See description in dataset comment | |
| 7 | Burial rate of calcium carbonate | CaCO3 bur | g/cm2/a | Veeran, Yoganandan | See description in dataset comment | |
| 8 | Burial efficiency of calcium carbonate | CaCO3 bur eff | % | Veeran, Yoganandan | Determined according to Bhushan et al. (2001) | |
| 9 | Paleoproductivity, as organic carbon | PP OC | g/cm2/a | Veeran, Yoganandan | PP calculated (Stein, 1986) |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1928 data points