About
6
Publications
3,165
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49
Citations
Citations since 2017
Introduction
My research interest is to understand the climate and weathering linkage at different timescales: seasonal to kilo-year. I frequently rely on isotopic and geochemical data of sediment and water samples to understand more about these problems.
Additional affiliations
August 2016 - September 2022
Indian Institute of Science Education and Research, Pune
Position
- Graduate Student
Education
August 2016 - September 2022
Field of study
- Paleoclimate; Weathering and Erosion, Carbon Cycle; Geochemistry; Isotopes
August 2013 - June 2015
Publications
Publications (6)
This study focuses on the immensely debated pre-instrumental centennial–millennial scaled forcing of the late Holocene hydroclimate variability in the Northwest Himalaya (NWH). The Wular Lake is ideally situated close to the modern intertropical convergence zone (ITCZ) in the NWH and fed by the Jhelum River draining the vast Kashmir Valley, which r...
Major and trace elemental geochemistry of a sediment core (SSK40/GC10; water depth ~ 50 m) from the eastern Arabian Sea (17° 59.89123 N, 72° 22.45161 E) have been investigated to reconstruct the continental weathering pattern and ocean redox state between 7.2 and 0.8 kyr BP (kyr, hereafter). The covariations of Fe/Al with K/Al and Ti/Al ratios indi...
Continental weathering plays a dominant role in regulating the global carbon cycle, soil chemistry, and nutrient supply to oceans. The CO2‐mediated silicate weathering acts as a major CO2 sink, whereas sulfuric acid‐mediated carbonate dissolution releases CO2 to the atmosphere‐ocean system. In this study, dissolved major ions and silica concentrati...
The CO2-mediated weathering of silicate rocks acts as a major sink of atmospheric CO2 over a geological time-scale. The intensity of these processes in the tropics has mainly been linked to climatic changes, in addition to several other geological factors (lithology, basin slope, tectonics). In this study, we present time-series major ion and Sr co...
Dissolved major ions and Sr concentrations of the Brahmaputra River at Guwahati, India, have been investigated on weekly basis for one year to understand the seasonality in weathering pattern and relative contributions from possible solute sources. Comparison of major ion data sets from present and earlier studies for this location shows no appreci...
Terrestrial geothermal fields and oceanic hydrothermal vents are considered as candidate environments for the emergence of life on Earth. Nevertheless, the ionic strength and salinity of oceans present serious limitations for the self-assembly of amphiphiles, a process that is fundamental for the formation of first protocells. Consequently, we syst...
Questions
Questions (2)
Hi,
I am interested in quantifying the abundances of different phases of clay minerals of marine sediments using XRD analysis. Any suggestions regarding the detailed method/software will be appreciated.
Thanks!
Anupam
I am a geologist and interest to identify different minerals present within the natural rock samples like quartz, feldspar etc, also interestd about different clay minerals like keolinite, illite etc.
There are much free softwares on interenet but most of them are designed for chemistry people (I think so) who work on synthetic materials. Being a geologist I am very much interested in natural samples mainly different mineral phases, so looking for a software which also has a good database on that. Thank you very much for your suggestion. I highly appreciate your time.
