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Shikha Sharma


Dr. Sharma’s research bridges the fields of stable Isotope geochemistry, biogeochemistry, and hydrogeochemistry to address a wide variety of issues related to the “Energy-Environment” nexus.

IsoBioGem Lab

PI: Shikha Sharma, Professor of Geology


My lab group is currently engaged in several DOE, NSF and EPA funded research projects that address a wide variety of issues related to the “Energy-Environment” nexus. The central theme of my research is to develop better understanding of how nano-scale properties and interactions can transform field scale behaviors of geologic systems. We accomplish this by utilizing wide variety of isotopic, geochemical, biomarker, spectroscopic and mineralogical tools.

The current research in our laboratory seeks to answer fundamental research questions related to 1) physico-biogeochemical interactions occurring in deep subsurface systems like unconventional shale reservoirs and CO2 sequestration systems, 2) tracing transport of fluids, gas, and contaminants in anthropogenically disturbed subsurface and surface hydrologic systems and, 3) cycling of C/N/O/S/H in modern and ancient environments.


  • GEOL 486: Environmental Isotopes
  • GEOL 591X: Analytical Techniques in Geology
  • GEOL 586: Advanced Isotope Geochemistry
  • GEOL 101: Planet Earth

Recent Publications

* indicates Sharma’s advisee

Sharma, S., Agrawal*, V., Akondi R. 2019. Role of Biogeochemistry in efficient shale oil and gas production. Fuel (in press)

Agrawal*, V. and Sharma, S. 2018. Improved Kerogen models for determining hydrocarbon potential and thermal maturity of shales. Nature Scientific Reports DOI:10.1038/s41598-018-35560-8

Pilewski*, J., Sharma, S., Agrawal, V., Hakala, A., Stuckman, MY. 2019. Effect of Maturity and Mineralogy on Fluid-Rock Reactions in the Marcellus Shale. Environmental Science Processes and Impacts, 21(5), 845-855 DOI: 10.1039/C8EM00452H

Akondi* R., Sharma S., Trexler R., Mouser PJ, Pfiffner SM 2019. Microbial Lipid Biomarkers Detected in Deep Subsurface Black Shales, Environmental Science Processes and Impacts 21(2), 291-307 DOI: 10.1039/c8em00444g

Agrawal* V. and Sharma S., 2018. Molecular Characterization of Kerogen from Mature Marcellus Shale and its Implications for Determining Hydrocarbon Potential and Thermal Maturity. Fuel, 228: 429–437.