Yadav, Ramanand; Naik, Sushant S; Naidu, Pothuri Divakar (2022): Dissolution indices above the lysocline over the last ~40 ka measured in sediment core SSD044_GC01 from the central equatorial Indian Ocean [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.948518
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Published: 2022-09-20 • DOI registered: 2022-12-24
Abstract:
We have deciphered the deep sea carbonate-ion content and associated dissolution in the central Equatorial Indian Ocean (5°N & 77°E). The marine sedimentary core was collected during the 044th Cruise of RV Sindhu Sadhana (SSD-044/GC01) using Gravity corer, which covers the period of the last 43 ka. Variations of dissolution indices were observed for the last 43ka. The overall data set shows the variation in carbonate dissolution during the late Glacial to Holocene epoc.
Keyword(s):
Related to:
Yadav, Ramanand; Naik, Sushant S; Naidu, Pothuri Divakar (2022): Contrasts in calcium carbonate dissolution above the lysocline in the equatorial Indian Ocean over the last ~40 ka. Marine Geology, 444, 106717, https://doi.org/10.1016/j.margeo.2021.106717
Yadav, Ramanand; Naik, Sushant S; Naidu, Pothuri Divakar (2022): Shell weights above the lysocline over the last ~40 ka measured in sediment core SSD044_GC01 from the equatorial Indian Ocean [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.948520
Yadav, Ramanand; Naik, Sushant S; Naidu, Pothuri Divakar (2022): Species abundances above the lysocline over the last ~40 ka measured in sediment core SSD044_GC01 from the equatorial Indian Ocean [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.948516
Funding:
Ministry of Earth Sciences (MOES), grant/award no. Gap-2949: Biogeochemical Process and Paleoceanographic Studies of the Eastern Indian Ocean, Geological Oceanography Division
Coverage:
Latitude: 5.000000 * Longitude: 77.000000
Date/Time Start: 2017-11-23T00:00:00 * Date/Time End: 2017-11-23T00:00:00
Minimum DEPTH, sediment/rock: 3 m * Maximum DEPTH, sediment/rock: 149 m
Event(s):
SSD044_GC-01 * Latitude: 5.000000 * Longitude: 77.000000 * Date/Time: 2017-11-23T00:00:00 * Elevation: 3160.0 m * Location: Equatorial Indian Ocean * Campaign: SSD-044 * Basis: Sindhu Sadhana * Method/Device: Gravity corer (GC)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Yadav, Ramanand | Geocode | |
| 2 | AGE | Age | ka BP | Yadav, Ramanand | Geocode | |
| 3 | Size index | Size index | % | Yadav, Ramanand | Stereo microscope | |
| 4 | Dissolution index, susceptible plankt foraminifera | SI96 | % | Yadav, Ramanand | Stereo microscope |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
148 data points
Data
| 1 Depth sed [m] | 2 Age [ka BP] | 3 Size index [%] | 4 SI96 [%] |
|---|---|---|---|
| 3 | 2.5 | 1.28571 | 3.24503 |
| 5 | 3.2 | 1.46835 | 2.43077 |
| 7 | 3.9 | 1.09278 | 3.12903 |
| 9 | 4.7 | 1.44340 | 2.91209 |
| 11 | 5.4 | 1.49474 | 3.10458 |
| 13 | 6.1 | 1.05769 | 2.74406 |
| 15 | 6.9 | 1.68000 | 2.27273 |
| 17 | 7.6 | 0.93182 | 2.90429 |
| 19 | 8.3 | 1.79221 | 2.17514 |
| 21 | 9.0 | 1.46575 | 2.28840 |
| 23 | 9.8 | 3.35484 | 1.26016 |
| 25 | 10.5 | 1.27143 | 2.18069 |
| 27 | 11.2 | 2.73585 | 1.64596 |
| 29 | 12.0 | 2.77193 | 1.73252 |
| 31 | 12.7 | 2.67164 | 1.87151 |
| 33 | 13.4 | 2.59615 | 1.63522 |
| 35 | 14.2 | 4.75806 | 1.14815 |
| 37 | 14.9 | 5.07843 | 1.17512 |
| 39 | 15.6 | 3.92683 | 1.25382 |
| 41 | 16.3 | 3.16438 | 1.63677 |
| 43 | 17.1 | 4.77500 | 1.06383 |
| 45 | 17.8 | 1.71622 | 2.16374 |
| 47 | 18.5 | 2.28070 | 1.75385 |
| 49 | 19.3 | 1.39024 | 2.72425 |
| 51 | 19.9 | 1.22000 | 2.82486 |
| 53 | 20.3 | 1.27957 | 2.83537 |
| 55 | 20.8 | 0.95413 | 3.62126 |
| 57 | 21.3 | 1.77500 | 2.31884 |
| 59 | 21.8 | 2.10000 | 2.05279 |
| 61 | 22.2 | 1.57143 | 2.22222 |
| 63 | 22.7 | 1.00952 | 3.32278 |
| 65 | 23.2 | 2.21739 | 1.88525 |
| 67 | 23.7 | 1.19417 | 2.95977 |
| 69 | 24.1 | 1.61290 | 2.42820 |
| 71 | 24.6 | 3.01563 | 1.61209 |
| 73 | 25.1 | 0.55797 | 4.58472 |
| 75 | 25.6 | 1.92754 | 2.16981 |
| 77 | 26.0 | 4.29730 | 1.07246 |
| 79 | 26.5 | 1.51042 | 2.53968 |
| 81 | 27.0 | 1.16484 | 2.78287 |
| 83 | 27.5 | 1.69048 | 2.49258 |
| 85 | 27.9 | 2.48611 | 1.76039 |
| 87 | 28.4 | 2.15000 | 2.16802 |
| 89 | 28.9 | 1.30851 | 2.60388 |
| 91 | 29.4 | 1.18391 | 2.79743 |
| 93 | 29.8 | 0.99138 | 3.34294 |
| 95 | 30.3 | 1.20930 | 2.81967 |
| 97 | 30.8 | 0.71111 | 3.73961 |
| 99 | 31.3 | 1.00000 | 3.25926 |
| 101 | 31.7 | 1.23571 | 3.53535 |
| 103 | 32.2 | 2.24419 | 2.29333 |
| 105 | 32.7 | 2.43243 | 1.85930 |
| 107 | 33.2 | 1.51546 | 2.46193 |
| 109 | 33.7 | 1.21788 | 3.11304 |
| 111 | 34.2 | 1.26531 | 3.24503 |
| 113 | 34.7 | 1.85455 | 2.52874 |
| 115 | 35.2 | 2.06918 | 2.24576 |
| 117 | 35.7 | 2.14493 | 2.03540 |
| 119 | 36.1 | 1.44628 | 2.71910 |
| 121 | 36.6 | 1.29524 | 3.32278 |
| 123 | 37.1 | 1.05217 | 3.40237 |
| 125 | 37.6 | 1.57522 | 2.60970 |
| 127 | 38.1 | 1.18939 | 2.69939 |
| 129 | 38.6 | 1.04511 | 3.50923 |
| 131 | 39.1 | 1.18519 | 2.98343 |
| 133 | 39.6 | 1.48980 | 2.55208 |
| 135 | 40.0 | 0.76991 | 3.99293 |
| 137 | 40.5 | 0.97581 | 3.54286 |
| 139 | 41.0 | 1.03704 | 3.63636 |
| 141 | 41.5 | 1.58721 | 2.95026 |
| 143 | 42.0 | 1.30526 | 3.00633 |
| 145 | 42.5 | 1.28947 | 3.13187 |
| 147 | 43.0 | 2.30952 | 2.08955 |
| 149 | 43.5 | 0.73643 | 4.28571 |