Dr. Arun Kumar Ojha

Scientist , Geochemistry

Dr. Arun Kumar Ojha

ojhaarun323@ngri.res.in

Academic Identity
           

Specialization

Structural Geology and Tectonics

Research Area

Dr. Arun Kumar Ojha received both M.Sc. and Ph.D. degrees from the Indian Institute of Technology, Roorkee. Dr. Ojha, extensively involved in Himalayan shear zones to understand the evolutionary history using a multi-proxy approach that includes structural geology, fluid inclusion microthermometry, geochronology, and numerical simulations during his Ph.D. After the submission of his Ph.D. in 2019, Dr. Ojha joined the Research School of Earth Sciences, Australian National University with Prof. Gordon Lister in a ‘Slab Modelling’ project to model the subducting Pacific slab. The aim of the slab modelling work was to understand the slab geometry and its role in upper plate tectonics and deformation. Dr. Ojha joined NGRI in April 2021 as a scientist.

Ongoing Research Projects

1. SERB-StartUp grant (Dec. 2022 to Dec. 2024)- Revisiting the Himachal Himalaya to test different tectonic models and their implications to Himalayan geodynamics (27.4 Lakhs).

Honors & Awards

  1. Future Research Talent Award 2019 by the Australian government.
  2. Prof. D.N Wadia Prize for best oral presentation in 2nd National Geo-Research Scholar Meet, 2017, held in WIHG, India.
  3. ANUX Summer School Fellowship 2015 (Australia).

Publications

  • Joshi, G., Phukon, P., Agarwal, A., Ojha, A.K., (2023). On the emplacement of the impact melt at the Dhala impact structure, India. Journal of Geophysical Research Planets, 128(7), 1-14. doi: 10.1029/2023JE007840.

 

  • Sahoo, A. K., Krishnamurthi, R., Dinkar, G. K., Rao, N.V. Chalapathi, Ojha, A. K., Raghuvanshi, S., Bhunia, S., (2023). Gold-Sulfide Mineralization in Banded Iron Formation at Girar, Bundelkhand Craton, India: Inferences from Field Observations and Petrography. Journal of Geological Society of India, 99 (1), 13-22.

 

  • Pradhan, R.M.*, Singh, A., Ojha, A.K. and Biswal, T.K., (2022). Structural controls on bedrock weathering in crystalline basement terranes and its implications on groundwater resources. Scientific Reports. 12(1), 1-22. doi: 10.1038/s41598-022-15889-x.

 

  • Ojha, A.K.*, Srivastava, D.C. and Sharma, R. (2022). Fluctuation in the fluid and tectonic pressures in the South Almora Thrust Zone (SATZ), Kumaun Lesser Himalaya; paleoseismic implications. Journal of Structural Geology, 1.4631. doi: 10.1016/j.jsg.2022.104631.

 

  • Rai, S.R., Sachan, H.K.*, Spencer, C.J., Kharya, A., Singhal, S., Ojha, A.K., Chattopadhaya, P. and Pati, P., (2022). Zircon geochronology and Hf isotopic study from the Leo Pargil Dome, India: implications for the palaeogeographic reconstruction and tectonic evolution of a Himalayan gneiss dome. Geological Magazine. 1-18. doi: 10.1017/S0016756822000449.

 

  • Ojha, A.K.*, Sharma, R. and Srivastava, D.C., (2019). Polyphase development of chocolate-tablet boudins in the SAT zone, Kumaun Lesser Himalaya, India. Journal of Structural Geology. 127, 103863. Doi: 10.1016/j.jsg.2019.103863.

 

  • Ojha, A.K.* and Srivastava, D.C., (2018). Effect of grain packing tightness on strain estimation from the Fry method. Journal of Earth System Science. 127(5), 1-12. Doi: 10.1007/s12040-018-0961-0.

 

  • Chakraborty, D. and Ojha, A.K.* (2017). Structural geometry of Nidar ophiolite, Ladakh: evidence from volcanic-sedimentary bands. HIMALAYAN GEOLOGY. 38(1), 91-99.

 

  • Kumar, R., Srivastava, D.C.* and Ojha, A.K., (2014). A comparison of the methods for objective strain estimation from the Fry plots. Journal of Structural Geology. 63, 76-90. Doi: 10.1016/j.jsg.2014.03.002.

Books

NIL

Research Scholars

NIL

Educational Qualification

Proffessional Experience

  • 2021 to present: Scientist, CSIR- National Geophysical Research Institute, Hyderabad, India.
  • 2019 to 2020: Postdoc fellow at Australian National University, Canberra, Australia.
  • 2013 to 2019: Doctoral candidate at Indian Institute of Technology, Roorkee, India.

Proffessional Affiliations