Select Peer-Reviewed and Conference Papers

Callahan, O. A., & Eichhubl, P., eds., in press, The geologic basement of Texas: a volume in honor of Peter T. Flawn: The University of Texas at Austin, Bureau of Economic Geology Report of Investigations No. 286. 10.23867/RI0286.

Cladouhos, T. T. & Callahan, O. A. (2024) Heat extraction from superhot rock – technological development. 49th Workshop on Geothermal Reservoir Engineering, Stanford University, Stanford, California. (download)

Callahan, O. A., Brigham, C., Heitmann, E., Sullivan, E., Jackson, A., Mat, S. R., Mudambi, J., Osako, J., Needle, M., Huntington, K., & Crider, J. G. (2023) High-resolution structure-from-motion models of hydrothermal sites in the Central Nevada Seismic Belt: applications in tectonic, climate, and hydrothermal investigations. 48th Workshop on Geothermal Reservoir Engineering, Stanford University, Stanford, California. (download)

Cladouhos, T. T. & Callahan, O. A. (2023) Heat extraction from superhot rock: a survey of methods, challenges, and pathways forward. GRC Transactions, 47. (download)

Callahan, O. A., Eichhubl, P., & Kyle, J. R. (2023) Geology and hydromechanical properties of the basement-sediment interface, Llano Uplift, central Texas, in Callahan, O. A. & Eichhubl, P., eds., The geologic basement of Texas: a volume in honor of Peter T. Flawn: The University of Texas at Austin, Bureau of Economic Geology Report of Investigations No. 286. 10.23867/RI0286C8

Jackson, A., Callahan, O. A., Mat, S. R., Heitmann, E., Schauer, A., Brigham, C., Mudambi, J., Osako, J., Sullivan, E., Huntington, K., & Crider, J. G. (2023) Paleothermometry of an enigmatic travertine deposit: Cottonwood Travertine, Stillwater Range, NV. 48th Workshop on Geothermal Reservoir Engineering, Stanford University, Stanford, California. (download)

Callahan, O. A., Eichhubl, P., & Davatzes, N. C. (2020) Mineral precipitation as a mechanism of fault core growth. Journal of Structural Geology, 140. 10.1016/j.jsg.2020.104156

Callahan, O. A., Eichhubl, P., Olson, J. E., & Davatzes, N. C. (2020) Experimental investigation of chemically aided fracture growth in silicified fault rocks. Geothermics, 83. 10.1016/j.geothermics.2019.101724

Callahan, O. A., Eichhubl, P., Olson, J. E., & Davatzes, N. C. (2019) Fracture mechanical properties of damaged and hydrothermally altered rocks, Dixie Valley ‐ Stillwater Fault Zone, Nevada, USA. Journal of Geophysical Research: Solid Earth, 124(4), 4069-4090. 10.1029/2018jb016708

Iovenitti, J., Ibser, F. H., Clyne, M., Sainsbury, J., & Callahan, O. A. (2016) The Basin and Range Dixie Valley Geothermal Wellfield, Nevada, USA – a test bed for developing an Enhanced Geothermal System exploration favorability methodology. Geothermics, 63, 195-209. 10.1016/j.geothermics.2016.01.001

Callahan, O. A., Cladouhos, T. T., Larson, B., & Ketcham, R. A. (2015) The thermal history of Garland Mineral Springs, North Cascades, WA, from apatite fission track analysis of well cuttings from geothermal exploration well GAR-1. GRC Transactions, 39, 513-528. (download)

Sonnenthal, E., Spycher, N., Callahan, O., Cladouhos, T., & Petty, S. (2012) A thermal-hydrological-chemical model for the enhanced geothermal system demonstration project at Newberry Volcano, Oregon. 37th Workshop on Geothermal Reservoir Engineering, Stanford University. (link)

Peer Reviews

AAPG Bulletin, Bureau of Economic Geology - Open File Map Series, Geosciences, Geosphere, GRC Transactions, GSA Bulletin, Journal of the Geological Society, Journal of Structural Geology, Marine and Petroleum Geology, NSF-EAR Tectonics Program, Society of Petroleum Engineers – Reservoir Evaluation & Engineering, Solid Earth

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