Updated on 2024/05/03

写真a

 
PENDANATH GOPINATHAN ATHIRA
 
Organization
Academic Assembly Institute of Science and Technology Specially Appointed Assistant Professor
Faculty of Science Specially Appointed Assistant Professor
Title
Specially Appointed Assistant Professor
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Degree

  • PhD in Geology ( 2022.12 )

  • Master of Science in Applied Geology ( 2013.4 )

  • Bachelor of Science in Geology ( 2011.5 )

Research Areas

  • Natural Science / Solid earth sciences  / Placer heavy minerals, Geochronology, Geochemistry, Tectonics

Research History (researchmap)

  • Niigata University   Faculty of Science Department of Geology   Specially Appointed Assistant Professor

    2023.2

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    Country：Japan

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  • Indian Institute of Science   Centre for Earth Sciences   Project Associate

    2022.9 - 2023.1

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    Country：India

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  • Indian Institute of Science   Centre for Earth Sciences   Technical Assistant

    2014.5 - 2016.4

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Research History

  • Niigata University   Faculty of Science   Specially Appointed Assistant Professor

    2023.2

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

    2023.2

Education

  • Calicut University   PhD

    2016.4 - 2022.12

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    Country： India

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  • Anna University   Department of Geology   Master of Science

    2011.8 - 2013.4

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    Country： India

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  • Government College Kottayam, Mahatma Gandhi University   Department of Geology   Bachelor of Science

    2009.6 - 2011.5

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    Country： India

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Papers

  • U-Pb ages of detrital zircon and monazite from beach placers in Sri Lanka: Implications for configuration of the Columbia supercontinent Reviewed

    Pendanath Gopinathan Athira, Krishnan Sajeev, Sanjeewa P. K. Malaviarachchi, Paul Mathews George, Mingguo Zhai, Ligang Zhou, Gayathri K. Wijeratne, Prasanna Lakshitha Dharmapriya, Brian F. Windley, Valiyaveettil Abdu Ayisha

    Journal of Asian Earth Sciences   251   105668 - 105668   2023.8

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

    DOI： 10.1016/j.jseaes.2023.105668

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  • Tracing remnants of Ediacaran S-type granitoids from beach placers in SE Madagascar Reviewed

    P.G. Athira, K. Sajeev, P.M. George, M.G. Zhai, L.G. Zhou, T. Razakamanana, B.F. Windley, V.A. Ayisha

    GSA Bulletin   135 (5-6) ( 1297–1309 )   2023.5

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    Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：Geological Society of America  

    Southeast Madagascar hosts several major deposits of beach placers, the provenance of which is little understood. To redress this imbalance, we present new laser ablation−inductively coupled plasma−mass spectrometry (LA-ICP-MS) U-Pb ages, and trace elements of zircons and monazites, as well as Hf isotopes of zircons from heavy mineral beach sands at Taolagnaro (Fort Dauphin) in SE Madagascar. The ages of detrital zircon grains range from 650 Ma to 450 Ma and from 1900 Ma to 1700 Ma (one grain has an age of 2633 Ma), and detrital monazite ages range from 574 Ma to 484 Ma. The Ediacaran−Cambrian zircons (650−450 Ma) and monazites (574−484 Ma) record a major Pan-African orogenic event in SE Madagascar. Geologically, the 650−450 Ma ages correlate well with coeval granitic gneisses in southern Madagascar, and a few 1900−1700 Ma ages can be linked to putative Paleoproterozoic protoliths of metasedimentary rocks from the Anosyen Domain and from the Itremo Group of central Madagascar. The zircon mineral chemistry indicates that some of the grains (P>25 μmol g−1) were sourced from S-type granitic rocks. The monazite chemistry points toward a metamorphic provenance from garnet-bearing amphibolite facies rocks, such as migmatitic gneisses in southern Madagascar. The Hf isotopic compositions of detrital zircons indicate reworking of their probable Paleoproterozoic−Archean source rocks. We conclude that the beach sand zircons and monazites were largely sourced from the uplifted and eroded Anosyen and Androyan Domains in SE Madagascar, and with minor contributions from central Madagascar, which were all transported by rivers to the ambient ocean to the southeast.

    DOI： 10.1130/b36176.1

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  • Beach placers of southwestern India: An archive of Precambrian supercontinent growth histories Reviewed

    P.G. Athira, K. Sajeev, Daniel J. Dunkley, P.M. George, Mingguo Zhai, Ligang Zhou, V.A. Ayisha

    Precambrian Research   364   106342 - 106342   2021.9

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

    DOI： 10.1016/j.precamres.2021.106342

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MISC

  • Geochemical and chronological studies on the beach placer monazites from southern India and Sri Lanka: implications on multiple thermal events related to Gondwana

    P.G. Athira, K Sajeev, P.M. George, Mingguo Zhai, Sanjeewa, P.K. Malaviarachchi, Ligang Zhou, V.A. Ayisha, Gayathri K. Wijeratne

    Proceedings of the 6th Shear Zones and Crustal Blocks of Southern India conference   6 ( 26-27 )   2020.11

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    Authorship：Lead author   Language：English   Publishing type：Research paper, summary (international conference)  

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Presentations

  • Tracing crustal evolution using detrital zircon and monazite from beach placers of Gondwana

    Athira., P. G, Sajeev, K, Dunkley, D. J, Zhai, M. G, Malaviarachchi, S. P.K, Razakamanana, T, Windley, B.F, Ayisha, V.A

    International Association for Gondwana Research 2023 Convention and 20th International Conference on Gondwana to Asia  2023.10 

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    Language：English   Presentation type：Poster presentation  

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  • Geochemical and chronological studies on the beach placer monazites from southern India and Sri Lanka: implications on multiple thermal events related to Gondwana.

    Athira, P. G, Sajeev, K, George, P. M, Zhai, M, Malaviarachchi, S. P, Zhou, L, Wijeratne, G. K

    6th Shear Zones and Crustal Blocks of Southern India conference  2020.11 

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    Language：English   Presentation type：Oral presentation (general)  

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  • Detrital zircon geochronology, Hf isotope studies and geochemistry of beach sediments from southwest coast of India: Implications for provenance

    Athira, P. G, Sajeev, K, Zhai, M, Satish-Kumar, M, Ayisha, V. A

    JSPS-DST international conference (Japan-India Forum for Advanced Study)  2019.3 

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    Language：English   Presentation type：Poster presentation  

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