Citation:

PANGAEA.939909

Name: Age determination of sediment core SSD004_GC03
Published: 2021
License: https://creativecommons.org/licenses/by/4.0/
Keywords: G. ruber white; Mg/Ca paleothermometry; Tropical Indian Ocean

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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):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Number	No		Singh, Dharmendra Pratap
2	DEPTH, sediment/rock	Depth sed	m	Singh, Dharmendra Pratap		Geocode
3	Laboratory code/label	Lab label		Singh, Dharmendra Pratap
4	Age, dated material	Dated material		Singh, Dharmendra Pratap
5	Age, dated	Age dated	ka	Singh, Dharmendra Pratap	Age, 14C AMS
6	Age, dated standard error	Age std e	±	Singh, Dharmendra Pratap	Age, 14C AMS
7	Calendar age, minimum/young	Cal age min	ka BP	Singh, Dharmendra Pratap	Age, 14C calibrated
8	Calendar age, maximum/old	Cal age max	ka BP	Singh, Dharmendra Pratap	Age, 14C calibrated
9	Calendar age, median	Cal age median	ka BP	Singh, Dharmendra Pratap	Age, 14C calibrated

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

120 data points

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Datasets with similar metadata

Singh, DP; Saraswat, R; Mohtadi, M et al. (2021): Northern tropical Indian Ocean Mg/Ca derived SST for the last glacial termination, sediment core SSD004_GC03. https://doi.org/10.1594/PANGAEA.933903
Nogué, S; Tovar, C; Bhagwat, SA et al. (2021): Age determination of sediment core Ghats_TS. https://doi.org/10.1594/PANGAEA.930071
Nogué, S; Tovar, C; Bhagwat, SA et al. (2021): Age determination of sediment core Ghats_RAJ. https://doi.org/10.1594/PANGAEA.930070