Browsing by Subject "palaeoclimatology"
Now showing items 1-14 of 14
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A 27,000 year record of Red Sea outflow: Implication for timing of post-glacial monsoon intensification
(American Geophysical Union, 1996)The history of the Red Sea Outflow (RSO) over the past 27,000 years from an AMS sup(14) C-dated high-resolution Delta sup(13) C record of benthic foraminifera from the inner Gulf of Aden assuming the dominance of circulation ... -
A first look at past sea surface temperatures in the equatorial Indian Ocean from Mg/Ca in foraminifera
(AGU, 2005)Sea surface temperature (SST) for the central equatorial Indian Ocean, has been reconstructed over the last approx. 137 kyr, from Mg/Ca of the planktonic foraminiferal species Globigerinoides ruber. According to our record ... -
A glimpse of the Quaternary monsoon history from India and adjoining seas
(Elsevier, 2014)The evolution of the monsoon is briefly summarized taking into account previous studies conducted on both terrestrial and marine records recovered from the Indian subcontinent and the adjoining seas. While the initiation ... -
Change in the intensity of low-salinity water inflow from the Bay of Bengal into the Eastern Arabian Sea from the Last Glacial Maximum to the Holocene: Implications for monsoon variations
(Elsevier, 2014)A 100–400 km wide region of the coastal Eastern Arabian Sea (EAS), off the west-coast of India, is characterized by a low-salinity tongue formed by the inflow of low-salinity surface water from the Bay of Bengal (BoB). ... -
Climate, vegetation and ecology during Harappan period: Excavations at Kanjetar and Kaj, mid-Saurashtra coast, Gujarat
(Elsevier, 2013)A multi-proxy study was carried out to address climate–culture relationship from two trenches one each from Kaj and Kanjetar (mid-Saurashtra coast) deposited in a lacustrine setting, since ~1960 Cal BC and ~2230 Cal BC, ... -
Deglaciation in the tropical Indian Ocean driven by interplay between the regional monsoon and global teleconnections
(Elsevier, 2013)High resolution climate records of the ice age terminations from monsoon-dominated regions reveal the interplay of regional and global driving forces. Speleothem records from Chinese caves indicate that glacial terminations ... -
Effect of river discharge on the morphology of benthic foraminiferal test
(Geological Society of India, 1994)Twenty one surface sediment samples collected from the inner shelf region off Karwar at 22-52 m water depth range have been studied for foraminiferal content. Based on the external test morphology the entire foraminiferal ... -
Foraminifera and changing pattern of monsoon rainfall
(Current Science Association, Bangalore, India, 1993)The palaeomonsoonal history can be reconstructed utilizing climatically sensitive properties of marine microorganisms; foraminifera. The results show a major boundary at 3500 years B.P. and periods of rather low precipitation ... -
Planktonic foraminifera from a quaternary deep sea core from the southern Arabian Sea
(Geological Society of India, 1989)An investigation on planktonic foraminifera and calcium carbonate content of a box core collected at a depth of 2556 m from the southern part of the Arabian sea indicates faunal changes depicting Quaternary climatic ... -
Proloculus size variation in Recent benthic foraminifera: Implications for paleoclimatic studies
(Elsevier, 1987)Ratios of dimorphic (microspheric/megalospheric) forms of Foraminifera are affected by temperature and hence are useful in paleoclimatic studies. In some cases, however, it is not possible to distinguish between the dimorphic ... -
Sediment traps as a new tool for estimation of longevity of planktonic foraminifera
(NCAOR, Goa, 2005)Sediment trap technique provides time series data of sinking particles (faunal and sediment) from surface to bottom of the sea. Besides many other applications, data can also be used to estimate life span of planktonic ... -
Supra-generic radiolarian transfer function based late Miocene palaeomonsoonal changes in the northeastern tropical Indian Ocean
(Indian Geological Association, 1995)A Q-mode factor analysis of the % data of 25 broadly defined supra-generic radiolarian groups in 42 deep-sea surface sediments produced four statistically significant and geographically distinct faunal assemblages related ... -
Supra-generic radiolarian transfer function based late Miocene palaeomonsoonal changes in the northeastern tropical Indian Ocean
(Indian Geological Association, 1995)A Q-mode factor analysis of the % data of 25 broadly defined supra-generic radiolarian groups in 42 deep-sea surface sediments produced four statistically significant and geographically distinct faunal assemblages related ... -
Variation in the Indian summer monsoon intensity during the Bolling-Allerod and Holocene
(American Geophysical Union, 2013)Variations in the Indian summer monsoon (ISM) intensity during the last 16.7 ka have been studied using organic carbon (C<sub>org</sub>), delta <sup>15</sup>N of sedimentary organic matter, CaCO<sub>3</sub>, sediment ...