Geochemistry Lab

Yogesh Kulkarni^$, Gyana Ranjan Tripathy, Satish J Sangode, KCV Naga Kumar, G Demudu and K Nageswara (2024) Geochemical evidence for increased sediment supply from the Deccan basalts during the Late Holocene aridity. Quaternary International, DOI: 10.1016/j.quaint.2024.07.016.
Rakesh Kumar Rout^$ and Gyana Ranjan Tripathy (2024) Net effect of chemical erosion in a tropical basin on carbon cycle: Constraints from elemental and sulfur isotopic composition of the Mahanadi river water. Chemical Geology, 644, 121859, DOI: doi.org/10.1016/j.chemgeo.2023.121859.
Nafees Ahmad, Satinder Pal Singh, Shivam Sahu, Rohan Bhattacharyya, Abhayanand Singh Maurya, Nitish Kumar, Rakesh Kumar Rout^$ and Gyana Ranjan Tripathy (2024) Isotopic evidence of autochthonous organic matter acting as a major sink of anthropogenic heavy metals in modern lacustrine sediments. Environmental Pollution 349 (2024) 123964, DOI: doi.org/10.1016/j.envpol.2024.123964.
Achyuth Venugopal^$, Gyana Ranjan Tripathy, Vineet Goswami, Sumit Kumar Ghosh and Deependra Singh (2023) Oceanic redox state during the early Cambrian: Insights from Mo-S isotopes and geochemistry of Himalayan shales. Geochemistry Geophysics Geosystems, 24, e2023gc011182, DOI: doi.org/10.1029/2023GC011182.
Reema Mandal, Anirban Das, Gyana Ranjan Tripathy, A.K. Sudheer, Sanjeev Kumar, R.D. Deshpande and Virendra Padhya (2023) Impact of soil salinity on groundwater chemistry in semi-arid regions in Western India: Insights from major ion and stable isotopic (δ2HH2O, δ18OH2O,and δ13CDIC) characteristics. Groundwater for Sustainable Development 21, 100939. DOI: doi.org/10.1016/j.gsd.2023.100939.
Mohd Danish^$ and Gyana Ranjan Tripathy (2022) Sources and internal cycling of dissolved barium in a tropical coastal lagoon (Chilika lagoon, India) system. Marine Chemistry, 240,104083. DOI: doi.org/10.1016/j.marchem.2021.104083.
Nafees Ahmad, Satinder Pal Singh, Aasif Mohmad Lone, Abul Qasim, Ravi Bhushan, Gyana Ranjan Tripathy and Chinmay Shah (2022) Historical variations in autochthonous and allochthonous sediment supplies to the largest freshwater lake in Central India. International Journal of Sediment Research. DOI: doi.org/10.1016/j.ijsrc.2022.02.008.
Aasif Mohmad Lone, Satinder Pal Singh, Rayees Ahmad Shah, Hema Achyuthan, Nafees Ahmad, Abul Qasim, Gyana Ranjan Tripathy, Anupam Samanta^$ and Pankaj Kumar (2022) The late Holocene hydroclimate variability in the Northwest Himalaya: Sedimentary clues from the Wular Lake, Kashmir Valley. Journal of Asian Earth Sciences, 229, 105184, DOI: doi.org/10.1016/j.jseaes.2022.105184.
Anupam Samanta^$, Gyana Ranjan Tripathy, B Nagender Nath, Ravi Bhushan, Rajani Panchang, Nisha Bharti and Ankush Shrivastava (2022) Holocene variability in chemical weathering and ocean redox state: A reconstruction using sediment geochemistry of the Arabian Sea. Journal of Asian Earth Sciences, 224, 105029. DOI: doi.org/10.1016/j.jseaes.2021.105029.
Mohd Danish^$, Gyana Ranjan Tripathy, Sirsha Mitra, Rakesh Kumar Rout^$, and Shubhangi Raskar (2021) Non-conservative removal of dissolved rhenium from a coastal lagoon: Clay adsorption versus biological uptake. Chemical Geology, 580, 120378. DOI: doi.org/10.1016/j.chemgeo.2021.120378.
Anirban Mandal^$, Gyana Ranjan Tripathy, Vineet Goswami, Lukáš Ackerman, Suraj K Parcha, and Rakesh Chandra (2021) Re–Os and Sr isotopic study of Permian–Triassic sedimentary rocks from the Himalaya: Shale chronology and Carbonate diagenesis. Minerals, 11 (4), 417.
Satyabrata Das, Gyana Ranjan Tripathy, Santosh Rai, Mohd Danish^$, Divya Thakur, Som Dutt and S Sarangi (2021) The Role of Sulfuric Acid in Continental Weathering: Insights from Dissolved major ions and inorganic carbon isotopes of the Teesta River, lower Brahmaputra system. Geochemistry Geophysics Geosystems, 22 (4) e2020GC009324.
Anupam Samanta^$, Gyana Ranjan Tripathy, Aswin Pradeep T and Anirban Mandal (2021) Major ion chemistry of two cratonic rivers in the Tropics: Weathering rates and their controlling factors. Hydrological Processes, 35, 2, e14035, DOI: 10.1002/hyp.14035.
Mohd Danish^$, Gyana Ranjan Tripathy and Waliur Rahaman (2020) Submarine groundwater discharge to a tropical coastal lagoon (Chilika lagoon, India): An estimation using Sr isotopes. Marine Chemistry, 224, 103816, 1-13.
M Nuruzzama, Waliur Rahaman, Gyana Ranjan Tripathy, Rahul Mohan and Shramik Patil (2020) Dissolved major ions, Sr and ⁸⁷Sr/⁸⁶Sr of coastal lakes from Larsemann hills, East Antarctica: Solute sources and chemical weathering in a polar environment. Hydrological Processes, 34,2351-2364.
Mohd Danish^$, Gyana Ranjan Tripathy, Rajani Panchang, Naveen Gandhi and Satya Prakash (2019) Dissolved boron in a brackish-water lagoon system (Chilika lagoon, India): Spatial distribution and coastal behavior. Marine Chemistry, 214, 103663, 1-13.
Anupam Samanta^$, Gyana Ranjan Tripathy, Ritima Das (2019) Temporal variations in water chemistry of the (lower) Brahmaputra river: implications to seasonality in mineral weathering. Geochemistry Geophysics Geosystems, 20, 2769-2785.
Gyana Ranjan Tripathy, Smruti Mishra, Mohd Danish and Kirpa Ram (2019) Elevated barium concentrations in rain water from east-coast of India: role of regional lithology. Journal of Atmospheric Chemistry, 76, 59-72.
Gyana Ranjan Tripathy, Judith Hannah and Holly Stein (2018) Refining the Jurassic-Cretaceous boundary: Re-Os geochronology and depositional environmeet of Upper Jurassic shales from the Norwegian Sea. Palaeogeography Palaeoclimatology Palaeoecology, 503, 13-25.
Manesh Joshi, Anupam Samanta, Gyana Ranjan Tripathy and Sudha Rajamani (2017) Formation and Stability of Prebiotically Relevant Vesicular Systems in Terrestrial Geothermal Environments. Life, 7, 51, 1-14.
Gyana Ranjan Tripathy, Judith Hannah, Holly Stein, Nicholas Geboy and Leslie Ruppert (2015) Radiometric dating of marine-influenced coal using Re-Os geochronology. Earth and Planetary Science Letters, 432, 13-23.
Gyana Ranjan Tripathy, and Singh S. K. (2015) Re-Os depositional age for black shales from the Kaimur Group, Upper Vindhyan, India. Chemical Geology, 413, 63-72.
Nicholas Geboy, Gyana Ranjan Tripathy, L F Ruppert, C F Eble, B M Blake, Judith Hannah and Holly Stein (2015) Re-Os age for Lower-Middle Pennsylvanian Boundary and Comparison with associated Palynoflora. International Journal of Coal Geology, 140, 23-30.
Gyana Ranjan Tripathy, Judith Hannah, Holly Stein and Gang Yang (2014) Re-Os age and depositional environment for black shales from the Cambrian-Ordovician boundary, Green Point, western Newfoundland. Geochemistry Geophysics Geosystems , 15, 1021-1037.
Gyana Ranjan Tripathy, Sunil Kumar Singh and V Ramaswamy (2014) Major and trace element geochemistry of Bay of Bengal sediments: Implications to Provenances and their controlling factors. Palaeogeography Palaeoclimatology Palaeoecology, 397, 20-30.
Gyana Ranjan Tripathy and Anirban Das (2014) Modeling geochemical datasets for source apportionment: Comparison of least square regression and inversion approaches. Journal of Geochemical Exploration, 144, 144-153.
Gyana Ranjan Tripathy, Sunil Kumar Singh and Harsh Bhu (2013) Re-Os isotopes and major and trace elemental geochemistry of carbonaceous shales, Aravalli Supergroup, India: Impact of post-depositional processes. Chemical Geology, 354, 93-106.
S Krishnaswami and Gyana Ranjan Tripathy (2012) Chemical and Physical erosion of river basins of India: Links to climate and tectonics. Proceedings of the Indian National Science Academy, 78 (3), 299-311.
Gyana Ranjan Tripathy, Singh S. K. and Krishnaswami S (2011). Sr and Nd isotopes as tracers of Chemical and Physical erosion. In “Handbook of Environemental isotope Geochemistry”, Ed. M. Baskaran, pp. 521-552, Springer-Verlag Berlin Heidelberg.
Gyana Ranjan Tripathy, Singh S.K., Bhushan R. and Ramaswamy V (2011). Sr-Nd isotope signatures of Bay of Bengal Sediments: Impact of Climate on Erosion. Geochemical Journal 45, 175-186.
Gyana Ranjan Tripathy, and Singh S. K. (2010). Chemical Erosion Rates of the Ganga headwater basin: Reassessment based on inversion of dissolved major ions, Sr and ⁸⁷Sr/⁸⁶Sr.Geochemistry Geophysics Geosystems, 11, Q03013, DOI: 10.1029/2009GC002862.
Gyana Ranjan Tripathy, Goswami V., Singh S. K. and Chakrapani G. J. (2010) Temporal variations in Sr and ⁸⁷Sr/⁸⁶Sr of the Ganga headwaters: Estimates of dissolved Sr flux to the mainstream. Hydrological Processes 24, 1159-1171. DOI: 10.1002/hyp.7572.