Updated on 2025/02/10

写真a

 
SASIDHARAN KIRAN
 
Organization
Academic Assembly Institute of Science and Technology Specially Appointed Assistant Professor
Faculty of Science Specially Appointed Assistant Professor
Title
Specially Appointed Assistant Professor
Contact information
メールアドレス
External link

Degree

  • Ph.D. in Geology ( 2024.3 )

  • Masters in Applied Geology ( 2016.7 )

  • Bachelors in Geology ( 2014.4 )

Research Interests

  • Precambrian Geology, Archaen life, Stromatolites, Feild Geology, Petrology, Petrography, Stable Isotope Geochemistry, Raman Specctroscopy of carbonaceous material, HIgh-end Micrsocopy analysis

Research Areas

  • Natural Science / Solid earth sciences  / Precambrian Geology, Archaen life, Stromatolites, Feild Geology, Petrology, Petrography, Stable Isotope Geochemistry, Raman Specctroscopy of carbonaceous material

Research History (researchmap)

  • Niigata University   Faculty of Science   Geology   Specially Appointed Assistant Professor

    2024.4

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    Country：Japan

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  • Indian Institute of Science, Bangalore   Centre for Earth Sciences   Project Assistant

    2016.10 - 2019.9

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    Country：India

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Research History

  • Niigata University   Faculty of Science   Specially Appointed Assistant Professor

    2024.4

  • Niigata University   Institute of Science and Technology, Academic Assembly   Specially Appointed Assistant Professor

    2024.4

Education

  • Niigata University   Graduate School of Science and Technology   Phd in Environmental Science and Technology

    2020.4 - 2024.3

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    Country： Japan

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  • University of Mysore, Karnataka   Department of Geology   Masters in Applied Geology

    2014.7 - 2016.7

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    Country： India

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  • Sree Narayana College, Varkala   Department of Geology   Bachelors in Geology

    2011.7 - 2014.4

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    Country： India

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Papers

  • Identification of Multiple Thermal Events in High‐Grade Metacarbonate Rocks Using Carbon Isotope Thermometry: An Example From the Sør Rondane Mountains, East Antarctica Reviewed

    M. Satish‐Kumar, Sasidharan Kiran, Fumiko Higashino, Tetsuo Kawakami, Tomokazu Hokada

    Geological Journal   2024.12

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Wiley  

    ABSTRACT

    Nine metacarbonate layers from the regionally metamorphosed terrane of the Sør Rondane Mountains in the Eastern Dronning Maud Land in East Antarctica were examined in detail for constraining the thermal events using carbon isotope exchange between dolomite/calcite and graphite. Equilibrium carbon isotope fractionation between dolomite and graphite suggested peak metamorphic temperature conditions reaching up to 802°C ± 29°C were estimated at the Balchenfjella locality, where multiple samples from six thick layers of metacarbonate rocks were examined. However, some of the samples exhibit lower carbon isotope fractionation reflecting the possibility of ultrahigh‐temperature metamorphic conditions, which is consistent with recent reports. Furthermore, several metacarbonate rock samples display large variations in δ<sup>13</sup>C<sub>VPDB</sub> values for graphite grains, despite dolomite and calcite showing homogeneous carbon and oxygen isotopic composition indicating signatures of retrograde metamorphism and fluid infiltration events. Detailed textural observation suggested alteration of δ<sup>13</sup>C<sub>VPDB</sub> values of graphite during retrograde metamorphism might have resulted due to the overgrowth of graphite crystals by the infiltration of low δ<sup>13</sup>C<sub>VPDB</sub>‐bearing fluids, the extent of alteration being a direct function of the fluid–rock ratio. Field evidence indicates the presence of carbonate veins cutting across the metacarbonate rocks suggesting that carbon isotope thermometry can also be utilised to understand the effect of external fluid infiltration. At Perlebandet locality the metamorphic temperature conditions were estimated to be around 915°C, whereas those from Tanngarden and Menipa gave lower temperature estimates. Detailed textural analysis of graphite in combination with isotopic composition provided clear evidence for retrograde events. Thus, our results provide tight constraints of peak and post‐peak metamorphic temperature conditions and a regional thermal structure for the Sør Rondane Mountains and further testify the usefulness of carbon isotope thermometry in polymetamorphic terrains.

    DOI： 10.1002/gj.5095

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  • Carbon isotopic composition of solid carbon and C–H–O fluid produced through the decomposition of stearic acid under HP-HT condition Reviewed

    Hideaki Kawamura, Hiroaki Ohfuji, Madhusoodhan Satish-Kumar, Sasidharan Kiran, Akio Suzuki

    High Pressure Research   44 ( 1 )   38 - 52   2023.12

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Informa UK Limited  

    DOI： 10.1080/08957959.2023.2297680

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  • Himalayan magnesite records abrupt cyanobacterial growth that plausibly triggered the Neoproterozoic Oxygenation Event Reviewed

    Prakash Chandra Arya, Claude Nambaje, S. Kiran, M. Satish-Kumar, K. Sajeev

    Precambrian Research   395   107129 - 107129   2023.9

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.precamres.2023.107129

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  • 2.0 Ga orogenic graphite deposits and associated 13C-enriched meta-carbonate rocks from South China Craton: Implications for global Lomagundi event Reviewed

    Yihe Li, Madhusoodhan Satish-Kumar, Sasidharan Kiran, Chuanhui Wan, Jianping Zheng

    Geoscience Frontiers   13 ( 4 )   101409 - 101409   2022.7

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.gsf.2022.101409

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  • Comparison between Raman spectra of carbonaceous material and carbon isotope thermometries in low-medium grade meta-carbonates: Implications for estimation of metamorphic temperature condition Reviewed

    S. Kiran, M. Satish-Kumar, Y. Nakamura, T. Hokada

    Precambrian Research   374   106656 - 106656   2022.6

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    Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    DOI： 10.1016/j.precamres.2022.106656

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  • A new inlet system for microscale carbon and oxygen stable isotope analysis using dual inlet isotope ratio mass spectrometer at Niigata University, Japan Reviewed

    M., Satish-Kumar, S., Kiran, M., Abe

    Science Reports of Niigata University   36   21 - 42   2021.3

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    Language：English   Publishing type：Research paper (bulletin of university, research institution)  

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Presentations

  • Evaluation of the biogenecity of 2.72 Ga titanite filled microtubular texture

    S., Kiran, Y., Nakamura, H, Ohfuji, M., Satish-Kumar

    Japan geoscience union (JpGU)  2024 

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    Language：English   Presentation type：Oral presentation (general)  

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  • Application of Raman spectra of carbonaceous material and carbon isotope thermometry in low-medium grade metacarbonate from the Chitradurga Schist Belt, Dharwar Craton

    S., Kiran, M, Satish-Kumar, Y., Nakamura, T., Hokada

    International Conference of Gondwana Research (IAGR)  2023 

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    Language：English   Presentation type：Poster presentation  

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  • An approach to understand the mode of formation of titanite microtube texture in Tumbiana Formation stromatolites, Pilbara Craton, western Australia

    S., Kiran, Y., Nakamura, M, Satish-Kumar, H., Ohfuji

    Japan Association of Mineralogical Sciences (JAMS)  2023 

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    Language：English   Presentation type：Oral presentation (general)  

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  • Micro-Raman Spectroscopy of low grade carbonaceous materials and its evolution

    S., Kiran, Y., Nakamura, M, Satish-Kumar

    Japan geoscience union (JpGU)  2022 

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    Language：English   Presentation type：Oral presentation (general)  

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  • Physical and chemical evolution of carbonaceous materials in Archean low to medium grade metasedimentary rocks

    S., Kiran, Y., Nakamura, H, Ohfuji, M., Satish-Kumar

    Japan Association of Mineralogical Sciences (JAMS)  2022 

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    Language：English   Presentation type：Oral presentation (general)  

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  • The physico chemical evolution of carbonaceous material during low-grade metamorphism of Archean stromatolites by Raman spectroscopy and carbon isotopes.

    S., Kiran, M, Satish-Kumar, Y., Nakamura, T., Hokada, H, Ohfuji

    Japan Association of Mineralogical Sciences (JAMS)  2021 

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    Language：English   Presentation type：Oral presentation (general)  

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  • A comparison between carbon isotope thermometry and Raman spectra of carbonaceous material (RSCM) thermometry in low-grade carbonate rocks from the Chitradurga Schist Belt, Dharwar Craton

    S., Kiran, M, Satish-Kumar, Y., Nakamura, H., Ohfuji

    Japan geoscience union (JpGU)  2021 

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    Language：English   Presentation type：Oral presentation (general)  

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