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Singh, Dharmendra Pratap; Saraswat, Rajeev; Mohtadi, Mahyar; Kumar, Pankaj (2021): Age determination of sediment core SSD004_GC03 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.939909

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Published: 2021 (exact date unknown) • DOI registered: 2022-02-08

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Abstract:
Here, we reconstructed sea surface temperature (SST) and upwelling intensity record from the northern tropical Indian Ocean for the last glacial termination (8-24 kyr BP). The marine sedimentary archive was collected during forth voyage of ORV Sindhu Sadhana and SST record was reconstructed using Mg/Ca in G. ruber white (sensu stricto). The upwelling intensity was reconstructed using percentage abundance of G. bulloides. The record demonstrates that the northern tropical Ocean began warming well before the increase in the atmospheric carbo dioxide and has potential implications for the strengthening of the AMOC as well as the eventual glacial termination.
Keyword(s):
G. ruber white; Mg/Ca paleothermometry; Tropical Indian Ocean
Related to:
Singh, Dharmendra Pratap; Saraswat, Rajeev; Mohtadi, Mahyar; Kumar, Pankaj (in review): Warm northern tropical Indian Ocean strengthened the ocean circulation prior to the last glacial termination. Geophysical Research Letters
Coverage:
Latitude: 7.225400 * Longitude: 77.945800
Minimum DEPTH, sediment/rock: 1.625 m * Maximum DEPTH, sediment/rock: 3.435 m
Event(s):
SSD004_GC03 * Latitude: 7.225400 * Longitude: 77.945800 * Method/Device: Gravity corer (GC)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 NumberNoSingh, Dharmendra Pratap
2 DEPTH, sediment/rockDepth sedmSingh, Dharmendra PratapGeocode
3 Laboratory code/labelLab labelSingh, Dharmendra Pratap
4 Age, dated materialDated materialSingh, Dharmendra Pratap
5 Age, datedAge datedkaSingh, Dharmendra PratapAge, 14C AMS
6 Age, dated standard errorAge std e±Singh, Dharmendra PratapAge, 14C AMS
7 Calendar age, minimum/youngCal age minka BPSingh, Dharmendra PratapAge, 14C calibrated
8 Calendar age, maximum/oldCal age maxka BPSingh, Dharmendra PratapAge, 14C calibrated
9 Calendar age, medianCal age medianka BPSingh, Dharmendra PratapAge, 14C calibrated
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
120 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 
No		2 
Depth sed [m]		3 
Lab label		4 
Dated material		5 
Age dated [ka]		6 
Age std e [±]		7 
Cal age min [ka BP]		8 
Cal age max [ka BP]		9 
Cal age median [ka BP]
11.625IUACD#20C3149G.ruber + T. sacculifer8.4810.0388.9359.1269.028
21.845IUACD#20C3150G.ruber + T. sacculifer9.1190.0459.6629.9079.792
32.295IUACD#20C3151G.ruber + T. sacculifer10.1710.04711.14211.32211.235
42.435IUACD#19C2586G.ruber + T. sacculifer10.7480.05511.24612.18311.929
52.595IUACD#19C2587G.ruber + T. sacculifer11.0400.08012.28112.91212.588
62.755IUACD#19C2588G.ruber + T. sacculifer12.7990.05113.73314.78914.345
62.755IUACD#19C2596C. wuellerstorfi + C. pachyderma13.5250.05415.58315.81615.693
72.875IUACD#19C2589G.ruber + T. sacculifer13.8050.05515.45216.31316.022
82.945IUACD#19C2590G.ruber + T. sacculifer14.9620.05816.50617.59217.567
93.055IUACD#19C2591G.ruber + T. sacculifer15.0030.07217.22618.60518.097
103.095IUACD#19C2592G.ruber + T. sacculifer16.0610.07818.11818.84418.670
113.175IUACD#19C2593G.ruber + T. sacculifer17.0780.07119.39620.24819.958
113.175IUACD#19C2597C. wuellerstorfi + C. pachyderma17.3570.07320.29220.52320.403
123.355IUACD#19C2594G.ruber + T. sacculifer17.7000.07120.43021.44020.951
133.435IUACD#19C2595G.ruber + T. sacculifer18.9370.07821.59822.31322.189