(Table 1) Age determination of sediment core AAS-62/2 ...

Variations in the Indian summer monsoon (ISM) intensity during the last 16.7 ka have been studied using organic carbon (Corg), d15N of sedimentary organic matter, CaCO3, sediment texture, d18OC, and Mg/Ca-derived sea surface temperature, d18O of sea water and sea surface salinity, in a 14C-dated sed...

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Bibliographic Details
Main Authors: Kessarkar, Pratima Mohan, Rao, V Purnachadra, Naqvi, Syed Wajih Ahmad, Karapurkar, Supriya G
Format: Dataset
Language:English
Published: PANGAEA 2013
Subjects:
DEPTH, sediment/rock
Depth, top/min
Depth, bottom/max
Laboratory number
Age, dated
Age, dated standard deviation
Calendar age
Gravity corer
Age, 14C AMS
Age, 14C calibrated, CALIB 5.0.2 Stuiver et al., 2005
Planktonic foraminifera
Online Access:https://dx.doi.org/10.1594/pangaea.820875
https://doi.pangaea.de/10.1594/PANGAEA.820875
Description
Summary:Variations in the Indian summer monsoon (ISM) intensity during the last 16.7 ka have been studied using organic carbon (Corg), d15N of sedimentary organic matter, CaCO3, sediment texture, d18OC, and Mg/Ca-derived sea surface temperature, d18O of sea water and sea surface salinity, in a 14C-dated sediment core from the eastern Arabian Sea. The d18O in water and planktonic foraminifera shells off the central west coast of India may be controlled by the ISM intensity as this area receives high precipitation and land runoff. Also, the Corg and CaCO3 contents of sediments and d15N of sedimentary organic matter may be linked to ISM-induced productivity and denitrification. The results of the present study reveal that between 16 and 15.2 ka BP, the ISM was weak with minor fluctuations and started intensifying around 15.2 ka BP, at the onset of the Bølling-Ållerød (B-A) event. The B-A event is characterized by higher water column denitrification rates comparable to the present day. The ISM signatures observed in the ... : Measured on Globigerinoides ruber. ...

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