Geochemistry of Energy Fuels Task

Science Center Objects

Geologic and geochemical processes that impact fuel quality, quantity, and availability can be best understood by utilizing a range of approaches, including, but not limited to isotopic signatures, inorganic and organic analyses, and neutron scattering techniques. Current work focuses on using neutron scattering to understand how fluids are stored and flow through tight continuous reservoirs and the use of statistical machine learning techniques to classify waste products from energy utilization. Work in this task is used to inform assessments and land managers.


Key Findings and Accomplishments

Fouskas, Fotios., Ma, Lin, Engle, M.A., Ruppert, L.F., Geboy, N.J., and Costa, M.A., 2018, Cadmium isotope fractionation during coal combustion: insights from two U.S. coal-fired power plants: Applied Geochemistry, v. 96, p. 100-112,

Martín-Fernández, J.A., Engle, M.A., Ruppert, L.F., and Olea, R.A., 2019, Self-organizing map for compositional data: Analysis of elemental concentrations in coal combustion products: Stochastic Environmental Research and Risk Assessment,

Ruppert, L.F. and Radlinski, A.P, 2018, In honor of Dr. Yuri B. Melnichenko: Application of neutron scattering (SANS and USANS) to research on fossil fuel energy sources: International Journal of Coal Geology, v. 189, p. 68-69.

Jones, K.B., Hodgins, G.W.L., and Sandweiss, D.H., in press, Radiocarbon chronometry of Site QJ-280, Quebrada Jaguay, a terminal Pleistocene to early Holocene fishing site in southern Peru: Journal of Island and Coastal Archaeology, 19 p.,

Etayo-Cadavid, M.F., Andrus, C.F.T., Jones, K.B., and Hodgins, G.W.L., in press, Subseasonal variations in marine reservoir age from pre-bomb Donax obesulus and Protothaca asperrima shell carbonate: Chemical Geology, 20 p.,

Jones, K., Scott, A., and Ruppert, L.F., 2019, Isotopic examination of thick pyrite bands in the Pittsburgh coal bed: International Journal of Coal Geology (in prep.)

Jubb, A.M., Ruppert, L.F., Headen, T., and Youngs, T.G.A., 2019, A contrast matching study of the behavior of methane in nano-sized pores in the Marcellus Shale: Fuel, in preparation.

Ruppert, L.F., Jubb, A.M., Youngs, T.G.A., Headen, T., 2019, NIMROD measurements of carbon dioxide adsorption in Marcellus Shale samples: Energy & Fuels, in preparation.


Ruppert, L.F. and Duncan, D.W., 2015, Recent trends and research in U.S. gas shale [abs.]: Abstracts of the 32nd Annual Meeting of the Society for Organic Petrology, Yogyakarta, Java, Indonesia, September 20-27, 2015, ISSN 1060-7250. (Presenter)

Warwick, P.D., Ruppert, L.F., and Qi, H., 2015, Carbon and oxygen isotopes of coal and carbon dioxide derived from laboratory coal combustion: Abstracts of the 32nd Annual Meeting of the Society for Organic Petrology, Yogyakarta, Java, Indonesia, September 20-27, 2015, ISSN 1060-7250.

Ruppert, L.F., 2017, U.S. Geological Survey overview and energy and mineral resource science: Presentation to the Kosovo U.S. Consultation for Independent Commission for Mines and Minerals, Department of the Interior, April 13, 2017. (Invited)

Stefanopoulos, K.L., Youngs, T.G.A., Sakurovs, R., Ruppert, L.F., and Bahadur, J., 2016, In situ neutron scattering measurements of CO2 adsorption in Marcellus Shale samples [abs.], Abstracts of the 33d Annual Meeting of the Society for Organic Petrology, Houston, TX. (Presenter)

Bahadur, J., Ruppert, L.F., Pipich, V., Sakurovs, R., and Melnichenko, Y.B., 2017, Porosity of the Marcellus Shale: A contrast matching small-angle neutron scattering study [abs.]: Abstracts of the 34th Annual Meeting of the Society for Organic Petrology, September 20-24, 2017. Calgary, Canada. (Presenter)

Martin-Fernandez, J.A., Olea, R.A., and Ruppert, L.F., 2017, Analysis of coal combustion products using compositional data techniques: International Association of Mathematical Geosciences: IAMG17 Abstracts, September 6, 2017, Perth, Australia

Martin-Fernandez, J.A., Engle, M.A., Ruppert, L.F., and Olea, R.A., 2018, New insights on the self-organizing maps for compositional data: analysis of coal combustion products with an application to a Wyoming power plant [abs.]: International Association of Mathematical Geosciences: IAMG18 Abstracts, September 2-8, 2018, Prague, Czech Republic. 

Ruppert, L.F., Youngs, T.G.A., Stefanopolos, K.L, and Sakurovs, R., 2018, Contrast matching Marcellus Shale study: The Society for Organic Petrology Annual Meeting, Beijing, China, August 17, 2018.