Dr. Thoti Yellappa

@ngri.res.in

Principal Scientist, Geochemistry Division, National Geophysical Research Institute, Hyderabad

Dr. Thoti Yellappa


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https://researchid.co/ylp_csir-ngri

EDUCATION

MSc., Ph.D. in Geology

RESEARCH INTERESTS

Precambrian Geology
761

Scholar Citations

13

Scholar h-index

13

Scholar i10-index

RECENT SCHOLAR PUBLICATIONS

  • Stable isotope systematics of metacarbonates from the western part of Cauvery Suture Zone, Southern India: Implications for Neoproterozoic evolution
    VG T. Yellappa
    International seminar on Unearthing the past and shaping the future: 175 … , 2025
    2025
  • Geochemical constraints on depositional environment of metacarbonate rocks from the Neoproterozoic Cauvery Suture Zone, Southern Granulite Terrane, India
    T Yellappa, B Naveen Kumar
    International Geology Review 67 (4), 472-499 , 2025
    2025
  • Geochemistry and tectonic significance of high-Fe bearing tholeiitic dykes from the southern part of Bastar Craton, central India: An evidence for continental arc magmatism
    T Yellappa
    Journal of Earth System Science, 1-30 , 2023
    2023
    Citations: 1
  • Petrogenesis and Geochemical characteristics of Pyroxenite dykes in and around Salem Mafic-Ultramafic Complex, Southern India: An arc-related origin of Alaskan- type
    T Yellappa
    Current Science , 2022
    2022
    Citations: 2
  • Thenmudiyanur Mafic–Ultramafic Complex from the northeastern margin of Southern Granulite Terrane, India: A possible Neoproterozoic Alaskan-type Complex
    T Yellappa
    Journal of Earth System Science , 2022
    2022
    Citations: 1
  • Mineral chemistry of chrome spinels from Thenmudiyanur Mafic- Ultramafic Complex, Belur Shear Zone, Southern India Evidence of Alaskan type Evolution.
    T Yellappa
    36th International Geological Congress, Hyderabad,, 1562-1563 , 2022
    2022
  • High Ti-bearing Gabbros from Chalk Hills of Salem, Southern India: A Co-genetic Origin during Neoproterozoic Alaskan-type Evolution
    T Yellappa
    Journal of the Geological Society of India 97 (1), 21-34 , 2021
    2021
    Citations: 7
  • Geochemical constrains on pyroxenites from Aniyapuram Mafic–Ultramafic Complex, Cauvery Suture Zone, southern India: Suprasubduction zone origin
    T Yellappa, T koizumi, T sunogae
    Journal of Earth System Science 130 (11), 1-24 , 2020
    2020
    Citations: 3
  • The mafic–ultramafic complex of Salem, southern India: An analogue for Neoproterozoic Alaskan‐type complex
    T Yellappa, M Santosh, S Manju
    Geological Journal 54 (5), 3017-3040 , 2019
    2019
    Citations: 30
  • Chemistry of Chrome spinels from Salem Mafic-Ultramafic Complex, Southern India: Evidence for Neoproterozoic Alaskan-type of evolution.
    T Yellappa
    National conference on ‘Tectonics of Evolving Earth’ at University of Hyderabad , 2019
    2019
  • GEOCHEMISTRY OF MAFIC GRANULITES FROM ANIYAPURAM MAFIC-ULTRAMAFIC COMPLEX (CAUVERY SUTURE ZONE) SOUTHERN INDIA: IMPLICATIONS FOR SUPRASUBDUCTION ZONE TECTONICS
    T Yellappa
    International Journal of Emerging Technologies and Innovative Research 5 (7 … , 2018
    2018
  • Geochemical characteristics of Proterozoic granite magmatism from Southern Granulite Terrain, India: implications for Gondwana
    T Yellappa, JM Rao
    Journal of Earth System Science 127 (2), 22 , 2018
    2018
    Citations: 26
  • Crustal architecture and tectonic evolution of the Cauvery Suture Zone, southern India
    TRK Chetty, T Yellappa, M Santosh
    Journal of Asian Earth Sciences 130, 166-191 , 2016
    2016
    Citations: 32
  • Mineral chemistry of isotropic gabbros from the Manamedu Ophiolite Complex, Cauvery Suture Zone, southern India: Evidence for neoproterozoic suprasubduction zone tectonics
    T Yellappa, T Tsunogae, TRK Chetty, M Santosh
    Journal of Asian Earth Sciences 130, 155-165 , 2016
    2016
    Citations: 5
  • Precambrian iron formations from the Cauvery Suture Zone, Southern India: Implications for sub-marine hydrothermal origin in Neoarchean and Neoproterozoic convergent margin …
    T Yellappa, TRK Chetty, M Santosh
    Ore Geology Reviews 72, 1177-1196 , 2016
    2016
    Citations: 18
  • The mafic–ultramafic complex of Aniyapuram, Cauvery Suture Zone, southern India: Petrological and geochemical constraints for Neoarchean suprasubduction zone tectonics
    T Yellappa, V Venkatasivappa, T Koizumi,TRK Chetty, M Santosh, T Tsunogae
    Journal of Asian Earth Sciences 95, 81-98 , 2014
    2014
    Citations: 52
  • Petrological and Geochemical characteristics of some mafic granulites in the eastern part of Cauvery Suture Zone, Southern granulite terrain, India: Implications for their …
    T Yellappa, V Venkatasivappa, TRK Chetty, M Santosh
    Granulites and Grnaulites-2013, Hyderabad , 2013
    2013
  • Mega sheath fold of the Mahadevi hills, Cauvery Suture Zone, southern India: Implication for accretionary tectonics
    TRK Chetty, T Yellappa, DP Mohanty, P Nagesh, VV Sivappa, M Santosh, ...
    Journal of the Geological Society of India 80 (6), 747-758 , 2012
    2012
    Citations: 21
  • Clinopyroxene compositions of Gabbros from Manamedu ophiolite complex, Cauvery Suture Zone, South India a new evidence for suprasubduction zone tectonics
    T Yellappa, TRK Chetty, T Tsunogae
    IAGR Annual Convention-2012, 9th International Symposium on Gondwana to Asia … , 2012
    2012
  • A Neoarchean dismembered ophiolite complex from southern India: Geochemical and geochronological constrains on its suprasubduction origin
    T Yellappa, M Santosh, TRK Chetty, S Kwon, C Park, P Nagesh, ...
    Gondwana Research , 2012
    2012
    Citations: 132

MOST CITED SCHOLAR PUBLICATIONS

  • The Neoproterozoic subduction complex in southern India: SIMS zircon U–Pb ages and implications for Gondwana assembly
    M Santosh, WJ Xiao, T Tsunogae, TRK Chetty, T Yellappa
    Precambrian Research 192, 190-208 , 2012
    2012
    Citations: 196
  • A Neoarchean dismembered ophiolite complex from southern India: Geochemical and geochronological constrains on its suprasubduction origin
    T Yellappa, M Santosh, TRK Chetty, S Kwon, C Park, P Nagesh, ...
    Gondwana Research , 2012
    2012
    Citations: 132
  • The Manamedu Complex: Geochemical constraints on Neoproterozoic suprasubduction zone ophiolite formation within the Gondwana suture in southern India
    T Yellappa, TRK Chetty, T Sunogae, M Santosh
    Journal of Geodynamics 50, 268-285 , 2010
    2010
    Citations: 96
  • Mapping of Shear Zones in the Western Ghats, Southwestern Part of Dharwar Craton
    TRK CHETTY, DP MOHANTY, T YELLAPPA
    Journal of Geological Society of India , 2012
    2012
    Citations: 57
  • The mafic–ultramafic complex of Aniyapuram, Cauvery Suture Zone, southern India: Petrological and geochemical constraints for Neoarchean suprasubduction zone tectonics
    T Yellappa, V Venkatasivappa, T Koizumi,TRK Chetty, M Santosh, T Tsunogae
    Journal of Asian Earth Sciences 95, 81-98 , 2014
    2014
    Citations: 52
  • Structural anatomy of a dismembered ophiolite suite from Gondwana: The Manamedu complex, Cauvery suture zone, southern India
    TRK Chetty, T Yellappa, P Nagesh, DP Mohanty, V Venkatasivappa, ...
    Journal of Asian Earth Sciences 42 (3), 176-190 , 2011
    2011
    Citations: 42
  • Crustal architecture and tectonic evolution of the Cauvery Suture Zone, southern India
    TRK Chetty, T Yellappa, M Santosh
    Journal of Asian Earth Sciences 130, 166-191 , 2016
    2016
    Citations: 32
  • The mafic–ultramafic complex of Salem, southern India: An analogue for Neoproterozoic Alaskan‐type complex
    T Yellappa, M Santosh, S Manju
    Geological Journal 54 (5), 3017-3040 , 2019
    2019
    Citations: 30
  • Geochemical characteristics of Proterozoic granite magmatism from Southern Granulite Terrain, India: implications for Gondwana
    T Yellappa, JM Rao
    Journal of Earth System Science 127 (2), 22 , 2018
    2018
    Citations: 26
  • Mega sheath fold of the Mahadevi hills, Cauvery Suture Zone, southern India: Implication for accretionary tectonics
    TRK Chetty, T Yellappa, DP Mohanty, P Nagesh, VV Sivappa, M Santosh, ...
    Journal of the Geological Society of India 80 (6), 747-758 , 2012
    2012
    Citations: 21
  • Precambrian iron formations from the Cauvery Suture Zone, Southern India: Implications for sub-marine hydrothermal origin in Neoarchean and Neoproterozoic convergent margin …
    T Yellappa, TRK Chetty, M Santosh
    Ore Geology Reviews 72, 1177-1196 , 2016
    2016
    Citations: 18
  • Occurrence of lamproitic dykes at the northern margin of the Indravati Basin, Bastar Craton, Central India
    T Yellappa, NVC Rao, TRK Chetty
    Journal of the Geological Society of India 75 (4), 632-643 , 2010
    2010
    Citations: 18
  • Tectonic framework of southern Bastar Craton, Central India: a study based on different spatial information data sets
    T Yellappa, TRK Chetty, M Santosh
    Geological Journal 47 (2-3), 161-185 , 2012
    2012
    Citations: 13
  • High Ti-bearing Gabbros from Chalk Hills of Salem, Southern India: A Co-genetic Origin during Neoproterozoic Alaskan-type Evolution
    T Yellappa
    Journal of the Geological Society of India 97 (1), 21-34 , 2021
    2021
    Citations: 7
  • Tectonic history and occurrence of 2.4 Ga mafic dyke swarms adjacent to Godavari Basin, Karimnagar, India
    JM Rao, GVSP Rao, M Widdowson, T Yellappa, SP Kelley
    Current Science 98 (11), 1472 , 2010
    2010
    Citations: 6
  • Mineral chemistry of isotropic gabbros from the Manamedu Ophiolite Complex, Cauvery Suture Zone, southern India: Evidence for neoproterozoic suprasubduction zone tectonics
    T Yellappa, T Tsunogae, TRK Chetty, M Santosh
    Journal of Asian Earth Sciences 130, 155-165 , 2016
    2016
    Citations: 5
  • Geochemical constrains on pyroxenites from Aniyapuram Mafic–Ultramafic Complex, Cauvery Suture Zone, southern India: Suprasubduction zone origin
    T Yellappa, T koizumi, T sunogae
    Journal of Earth System Science 130 (11), 1-24 , 2020
    2020
    Citations: 3
  • Mafic dykes around Ramagiri schist belt, East Dharwar Craton, South India: Possible plaleaostress regimes
    T Yellappa, TRK Chetty
    Indian Dyke Volume, 2008, 261-279 , 2008
    2008
    Citations: 3
  • Petrogenesis and Geochemical characteristics of Pyroxenite dykes in and around Salem Mafic-Ultramafic Complex, Southern India: An arc-related origin of Alaskan- type
    T Yellappa
    Current Science , 2022
    2022
    Citations: 2
  • Geochemistry and tectonic significance of high-Fe bearing tholeiitic dykes from the southern part of Bastar Craton, central India: An evidence for continental arc magmatism
    T Yellappa
    Journal of Earth System Science, 1-30 , 2023
    2023
    Citations: 1

Publications

19. Yellappa, T., 2022. Geochemistry of Pyroxenites dykes in and around Salem mafic-Ultramafic complex, southern India: An evidence of Arc related origin of Alaskan- type. Current Science (IF: 1.103) (Accepted)
18. Yellappa, T. 2022. Thenmudiyanur Mafic-Ultramafic Complex from the north eastern margin of Southern Granulite Terrane, India: a possible Neoproterozoic Alaskan- type Complex Journal of Earth System Science 131:206, 1-27. (IF: 1.371).
17. Yellappa, T., 2021. High Ti-bearing gabbros from Chak hills of Salem Southern granulite terrane India. Journal of the Geological Society of India 97, 21-34. (IF: 1.459)
16. Yellappa, T. Koizumi, T. Tsunogae, T. 2021. Geochemical constrains on pyroxenites from the Aniyapuram mafic-ultramafic complex, Cauvery Suture Zone, Southern India: a Suprasubduction zone origin. Journal of Earth System Science 130:11, 1-24. (IF: 1.371)
15. Yellappa, T., Santosh, M. and Manju, S. 2019. The mafic-ultramafic complex of Salem, southern India: An analogue for Neoproterozoic Alaskan- type complex. Geological Journal 54(5), 3017-3040. . (IF: 2.489).
14. Yellappa, T. and Mallikarjuna Rao, M., 2018. Geochemical Constrains on Neoproterozoic Granitoids from Cauvery Suture Zone, Southern granulite Terrain: implications for Gondwana. Journal of Earth System Science 127:22, 1-31. (

GRANT DETAILS

5. Geochemical constrains on evolution- 22.39 lakhs 2019-2022
history of calc-silicate rocks from the north
and central parts of Southern granulite terrane,
India DST (sponsored) PI: Dr. T. Yellappa
-----------------------------------------------------------------------------------------------------------------
4. Age and Tectonothermal history of mafic and 11.40 lakhs 2015-2019
ultramafic rocks within the Cauvery Suture Zone
Southern India
DST (sponsored) PI: Dr. T. Yellappa
-----------------------------------------------------------------------------------------------------------------
3. Thermal evolution of Peninsular India: 40.00 lakhs 2010-2013
Past behaviours and future potential
(Indo-Australian Collaboration-AISRF)
PI: Dr. TRK Chetty
DST (sponsored) Member: Dr. T. Yellappa
-----------------------------------------------------------------------------------------------------------------
2. Structure and dynamics of shear 10.80 lakhs 2008-2011
zone systems across the Dharwar
Craton along Kasargoad-Kurnool Transect
PI: Dr. T.R.K. Chetty
DST (sponsored) Co-PI: Dr. T. Yellappa
-----------------------------------------------------------------------------------------------------------------
1. Tectanothermal evolution of 02.00 lakhs 2008-2010
Gondwana suture, Southern India
(Indo-Japan Collaboration)
PI: Dr. T.R.K