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Hire Dr. Koushik S.

India

USD 40 /hr

Geoscience Machine Learning & MLOps Specialist | XGBoost/LGBM, CoDA-ILR, Sentinel-2, Well-Logging, Core Image CNNs

Profile Summary

I build end-to-end machine learning solutions for geoscience, covering geochemical CoDA–ILR workflows, XGBoost/LightGBM modelling, Sentinel-2 remote sensing analysis, well-logging lithology prediction, and CNN-based core image classification. My pipelines are clean, reproducible, and deployment-ready, with complete evaluation (F1, ROC-AUC, SHAP), FastAPI backends, Streamlit dashboards, and Dockerized delivery for easy handoff and production use.

Subject Matter Expertise

• ★ Earth & Atmospheric Science
• ☆ Mining
• ☆ Geochemistry
• ☆ Seismology, Tectonics & Volcanology
• ☆ Geology
• ☆ Geophysics
• ☆ Mineralogy
• ☆ Python
• ☆ Scikit-learn

Services

• Data & AI

Data & AI Predictive Modeling, Statistical Analysis, Image Processing, Algorithm Design-ML, Data Visualization

Work Experience

Research Scientists

Wadia institute of himalayan geology

January 2008 - Present

Education

PhD

Indian Institute of Technology, Kharagpur

July 2003 - September 2007

Certifications

• Roy, S., Kim, D., & Sen, K. (2025). Harzburgite-dunite transition in the Nidar Ophiolitic Complex, Ladakh, NW India and its effect on olivine crystallographic fabric. Physics and Chemistry of the Eart

  Physics and Chemistry of the Earth

  https://doi.org/10.1016/j.pce.2025.104210

  January 2025 - January 2025

Publications

BOOK CHAPTER

Choudhary, S., Sen, K., Kumar, S.(2022). Pyroxenite-hosted chalcopyrites from Sung Valley, Meghalaya, NE India: implications for the formation of both high-and low-temperature sulfides in plume-derived magma . Geological Society Special Publication. 518. (1). p. 575-591.

Mamtani, M.A., Bhatt, S., Rana, V., Sen, K., Mondal, T.K.(2020). Application of anisotropy of magnetic susceptibility (Ams) in understanding regional deformation, fabric development and granite emplacement: Examples from indian cratons . Geological Society Special Publication. 489. (1). p. 275-292.

JOURNAL ARTICLE

Mukherjee, K., Adlakha, V., Banerjee, S., Sen, K.(2022). Tectonothermal evolution of the Lohit Valley, Eastern Himalaya: New low-temperature thermochronological constraints . Geological Journal. 57. (2). p. 537-556.

Sen, A., Sen, K., Chatterjee, A., Choudhary, S., Dey, A.(2022). Understanding pre-and syn-orogenic tectonic evolution in western Himalaya through age and petrogenesis of Palaeozoic and Cenozoic granites from upper structural levels of Bhagirathi Valley, NW India . Geological Magazine. 159. (1). p. 97-123.

Sain, K., Kumar, A., Mehta, M., Verma, A., Tiwari, S.K., Garg, P.K., Kumar, V., Rai, S.K., Srivastava, P., Sen, K.(2021). A Perspective on Rishiganga-Dhauliganga Flash Flood in the Nanda Devi Biosphere Reserve, Garhwal Himalaya, India . Journal of the Geological Society of India. 97. (4). p. 335-338.

Choudhary, S., Sen, K., Kumar, S., Rana, S., Ghosh, S.(2021). Forsterite reprecipitation and carbon dioxide entrapment in the lithospheric mantle during its interaction with carbonatitic melt: A case study from the Sung Valley ultramafic-alkaline-carbonatite complex, Meghalaya, NE India . Geological Magazine. 158. (3). p. 475-486.

Kharya, A., Sachan, H.K., Spencer, C.J., Sen, K., Prakash, D., Rai, S.R., Kumar, V.(2021). Tracing Late-Stage Fluid Sources and Vein Formation within Ophiolitic Mélanges from the Indus Suture Zone, Ladakh Himalaya . Journal of Geology. 129. (6). p. 695-723.

Kumar, A., Srivastava, P., Sen, K., Morell, K., Hazarika, D.(2020). Evidence for late Quaternary brittle deformation and back thrusting within the Indus Suture Zone, Ladakh Himalaya . Tectonophysics. 792.

Pundir, S., Adlakha, V., Kumar, S., Singhal, S., Sen, K.(2020). Petrology, geochemistry and geochronology of granites and granite gneisses in the SE Karakoram, India: Record of subduction-related and pre- to syn-kinematic magmatism in the Karakoram Fault Zone . Mineralogy and Petrology. 114. (5). p. 413-434.

Lakhan, N., Singh, A.K., Singh, B.P., Sen, K., Singh, M.R., Khogenkumar, S., Singhal, S., Oinam, G.(2020). Zircon U–Pb geochronology, mineral and whole-rock geochemistry of the Khardung volcanics, Ladakh Himalaya, India: Implications for Late Cretaceous to Palaeogene continental arc magmatism . Geological Journal. 55. (5). p. 3297-3320.

Phukon, P., Sen, K., Singh, P.C., Sen, A., Srivastava, H.B., Singhal, S.(2019). Characterizing anatexis in the Greater Himalayan Sequence (Kumaun, NW India) in terms of pressure, temperature, time and deformation . Lithos. 344-345. p. 22-50.

Sen, K., Adlakha, V., Singhal, S., Chaudhury, R.(2018). Migmatization and intrusion of “S-type” granites in the trans-Himalayan Ladakh Magmatic Arc of north India and their bearing on Indo-Eurasian collisional tectonics . Geological Journal. 53. (4). p. 1543-1556.

Phukon, P., Sen, K., Srivastava, H.B., Singhal, S., Sen, A.(2018). U-Pb geochronology and geochemistry from the Kumaun Himalaya, NW India, reveal Paleoproterozoic arc magmatism related to formation of the Columbia supercontinent . Bulletin of the Geological Society of America. 130. (7-8). p. 1164-1176.

Bikramaditya Singh, R.K., Krishnakanta Singh, A., Sen, K., Sangode, S.J.(2017). Detection of a weak late-stage deformation event in granitic gneiss through anisotropy of magnetic susceptibility: Implications for tectonic evolution of the Bomdila Gneiss in the Arunachal Lesser Himalaya, Northeast India . Geological Magazine. 154. (3). p. 476-490.

Hazarika, D., Paul, A., Wadhawan, M., Kumar, N., Sen, K., Pant, C.C.(2017). Seismotectonics of the Trans-Himalaya, Eastern Ladakh, India: Constraints from moment tensor solutions of local earthquake data . Tectonophysics. 698. p. 38-46.

Sen, K., Chaudhury, R., Pfänder, J.(2015). ⁴⁰Ar-³⁹Ar age constraint on deformation and brittle-ductile transition of the Main Central Thrust and the South Tibetan Detachment zone from Dhauliganga valley, Garhwal Himalaya, India . Journal of Geodynamics. 88. p. 1-13.

Tandon, R.S., Gupta, V., Sen, K.(2015). Seismic properties of naturally deformed quartzites of the Alaknanda valley, Garhwal Himalaya, India . Journal of Earth System Science. 124. (6). p. 1159-1175.

Sen, K., Mukherjee, B.K., Collins, A.S.(2014). Interplay of deformation and magmatism in the Pangong Transpression Zone, eastern Ladakh, India: Implications for remobilization of the trans-Himalayan magmatic arc and initiation of the Karakoram Fault . Journal of Structural Geology. 62. p. 13-24.

Sen, K., Mukherjee, B.K., Collins, A.S.(2014). Reply to comment on "Interplay of deformation and magmatism in the Pangong Transpressional Zone, Eastern Ladakh, India: Implications for remobilization of the trans-Himalayan magmatic arc and initiation of the Karakoram Fault" . Journal of Structural Geology. 65. p. 120-122.

Hazarika, D., Sen, K., Kumar, N.(2014). Characterizing the intracrustal low velocity zone beneath northwest India-Asia collision zone . Geophysical Journal International. 199. (3). p. 1338-1353.

Sen, K., Tripathi, K., Dubey, A.K.(2013). Is the North Indian continental margin a palaeo-proterozoic magmatic arc? Insights from magnetomineralogy and geochemistry of the wangtu gneissic complex, himachal lesser himalaya . Current Science. 104. (11). p. 1527-1533.

Sen, K., Collins, A.S.(2013). Reply to comment on "Dextral transpression and late-Eocene magmatism in the trans-Himalayan Ladakh Batholith (North India): Implications for tectono-magmatic evolution of the Indo-Eurasian collisional arc" . International Journal of Earth Sciences. 102. (3). p. 973-975.

Sen, K., Das, S., Mukherjee, B.K., Sen, K.(2013). Bimodal stable isotope signatures of Zildat Ophiolitic Mélange, Indus Suture Zone, Himalaya: Implications for emplacement of an ophiolitic mélange in a convergent setup . International Journal of Earth Sciences. 102. (7). p. 2033-2042.

Sen, K., Collins, A.S.(2013). Dextral transpression and late Eocene magmatism in the trans-Himalayan Ladakh Batholith (North India): Implications for tectono-magmatic evolution of the Indo-Eurasian collisional arc . International Journal of Earth Sciences. 102. (7). p. 1895-1909.

Tripathi, K., Sen, K., Dubey, A.K.(2012). Modification of fabric in pre-Himalayan granitic rocks by post-emplacement ductile deformation: Insights from microstructures, AMS, and U-Pb geochronology of the Paleozoic Kinnaur Kailash Granite and associated Cenozoic leucogranites of the South Tibetan Detachment zone, Himachal High Himalaya . International Journal of Earth Sciences. 101. (3). p. 761-772.

Sen, K., Dubey, A.K., Tripathi, K., Pfänder, J.A.(2012). Composite mesoscopic and magnetic fabrics of the Paleo-Proterozoic Wangtu Gneissic Complex, Himachal Himalaya, India: Implications for ductile deformation and superposed folding of the Himalayan basement rocks . Journal of Geodynamics. 61. p. 81-93.

Mukherjee, B.K., Sen, K., Sachan, H.K., Paul, S.K.(2012). Exhumation history of the Karakoram fault zone mylonites: New constraints from microstructures, fluid inclusions, and ⁴⁰ Ar- ³⁹ Ar analyses . Lithosphere. 4. (3). p. 230-241.

Sharma, R., Gupta, V., Arora, B.R., Sen, K.(2011). Petrophysical properties of the Himalayan granitoids: Implication on composition and source . Tectonophysics. 497. (1-4). p. 23-33.

Sen, K., Sharma, R., Arora, B.R., Gupta, V.(2010). Influence of magnetic fabric anisotropy on seismic wave velocity in paramagnetic granites from NW Himalaya: Results from preliminary investigations . Journal of the Geological Society of India. 76. (4). p. 322-330.

Jayangondaperumal, R., Dubey, A.K., Sen, K.(2010). Mesoscopic and magnetic fabrics in arcuate igneous bodies: An example from the Mandi-Karsog pluton, Himachal Lesser Himalaya . Geological Magazine. 147. (5). p. 652-664.

Jayangondaperumal, R., Dubey, A.K., Sen, K.(2010). Structural and magnetic fabric studies of recess structures in the Western Himalaya: Implications for 1905 kangra earthquake . Journal of the Geological Society of India. 75. (1). p. 225-238.

Sen, K., Mukherjee, B.K., Sachan, H.K.(2009). Field and microstructural analysis of the Pangong Granodiorite, Ladakh (NW India): Implications for tectonics along the Karakoram Fault Zone . Current Science. 96. (8). p. 1124-1130.

Sinha, S., Sen, K., Sangode, S.J., Kumar, R., Ghosh, S.K.(2009). Sedimentology and magnetic fabric studies of Mio-Pliocene fluvial succession in the NW Himalayan Foreland Basin . Current Science. 96. (2). p. 260-267.

Sen, K., Mamtani, M.A.(2006). Magnetic fabric, shape preferred orientation and regional strain in granitic rocks . Journal of Structural Geology. 28. (10). p. 1870-1882.

Sen, K., Majumder, S., Mamtani, M.A.(2005). Degree of magnetic anisotropy as a strain intensity gauge in ferromagnetic granites . Journal of the Geological Society. 162. (4). p. 583-586.

BOOK

Sen, A., Sen, K., Srivastava, H.B., Singhal, S., Phukon, P.(2019). Age and geochemistry of the paleoproterozoic bhatwari gneiss of garhwal lesser himalaya, nw india: Implications for the pre-himalayan magmatic history of the lesser himalayan basement rocks . Geological Society Special Publication. 481. (1). p. 319-339.