Carl Steefel is an American geoscientist and academic. He is the head of the Geochemistry Department and a senior scientist in the Energy Geosciences Division of Berkeley Laboratory's Earth and Environmental Sciences Area.[1]
Steefel earned a B.A. in English Literature from Washington University in 1974. In 1976,he worked as a Manuscripts librarian at the Huntington Library,and in 1978,he held the position of Geological Assistant at the United States Geological Survey's Branch of Exploration Research. Between 1979 and 1985,he worked as a Geologist at Anaconda Minerals while earning his M.S. in Geology from the University of Colorado in 1982. In 1985,he assumed Teaching and Research Fellowships at the Yale University Department of Geology,which he held until 1991. Subsequently,he was appointed as a Post-Doctoral Associate at the Mineralogisch-Petrographisches Institut,Universität Bern,where he worked until 1993. During this time,he also earned an M.Phil. in Geology in 1987 and a Ph.D. in Geochemistry in 1991,both from Yale University.[1]
Later career
From 1993 to 1995,Steefel worked as a Research Scientist in the Interfacial Geochemistry Group at Battelle Pacific Northwest Laboratories,where he was later designated as a Senior Research Scientist in 1995. He was also employed as an assistant professor of Geology at the University of South Florida between 1995 and 1998. Subsequently,he was appointed as a staff scientist in the Environmental Science Division at Lawrence Livermore National Laboratory. In 2004,he left Lawrence Livermore National Laboratory and joined Lawrence Berkeley National Laboratory as a staff scientist in 2004,becoming a senior scientist in 2012. In 2016,he was appointed department head for Geochemistry in the Earth and Environmental Sciences Area.[4][1]
Steefel is the Principal Developer of the CrunchFlow Reactive Transport software,[5] which received an R&D 100 Award.[6]
Research
Steefel's research has focused on reactive transport modeling,high-performance computing,machine learning,mineral-water kinetics,and biogeochemistry;In 1990,alongside Philippe Van Cappellen,he documented how the kinetic modeling approach provided the understanding of water-rock interaction by incorporating nucleation,precursors,and Ostwald ripening.[7] Later,in a study,he developed the coupled model for multi-species transport and kinetic precipitation-dissolution reactions in single-phase hydrothermal systems.[8]
With Kate Maher,he applied reactive transport modeling in 2009 to address the reconciliation of laboratory and field rates of chemical weathering.[9]
In 1996,Steefel co-edited a Reviews in Mineralogy volume on Reactive Transport in Porous Media with Peter Lichtner and Eric Oelkers,[10] and worked as Lead Editor and author for a second Reviews in Mineralogy and Geochemistry volume on Pore-Scale Geochemical Processes in 2015.[11]
Steefel, C. I.; Lasaga, A. C. (1994). "A coupled model for transport of multiple chemical species and kinetic precipitation/dissolution reactions with application to reactive flow in single phase hydrothermal systems". American Journal of Science. 294 (5): 529–592. Bibcode:1994AmJS..294..529S. doi:10.2475/ajs.294.5.529.
Steefel, C. I.; Lichtner, P. C. (1994). "Diffusion and reaction in rock matrix bordering a hyperalkaline fluid-filled fracture". Geochimica et Cosmochimica Acta. 58 (17): 3595–3612. Bibcode:1994GeCoA..58.3595S. doi:10.1016/0016-7037(94)90152-X.
Steefel, C. I.; Lichtner, P. C.; Oelkers, E. H. (1996). Steefel, C. I.; Lichtner, P. C.; Oelkers, E. H. (ed.). "Reactive transport in porous media". Mineralogical Society of America. 34: 1–28. doi:10.1515/9781501509797-002.{{cite journal}}: CS1 maint: multiple names: editors list (link)
Steefel, C. I.; McQuarrie, K. T. B. (1996). "Approaches to modeling of reactive transport in porous media". Reviews in Mineralogy. 34: 83–130. doi:10.1515/9781501509797-005.
Steefel, C. I.; DePaolo, D. J.; Lichtner, P. C. (2005). "Reactive transport modeling: An essential tool and a new research approach for the Earth sciences". Earth and Planetary Science Letters. 240 (3–4): 539–558. doi:10.1016/j.epsl.2005.09.017.
Li, L.; Steefel, C. I.; Yang, L. (2008). "Scale dependence of mineral dissolution rates within single pores and fractures". Geochimica et Cosmochimica Acta. 72 (2): 360–377. Bibcode:2008GeCoA..72..360L. doi:10.1016/j.gca.2007.10.027.
Steefel, C. I.; Appelo, C. A. J.; Arora, B.; Jacques, D.; Kalbacher, T.; Kolditz, O.; Yeh, G. T. (2015). "Reactive transport codes for subsurface environmental simulation". Computational Geosciences. 19 (3): 445–478. Bibcode:2015CmpGe..19..445S. doi:10.1007/s10596-014-9443-x.
Steefel, C. I.; Beckingham, L. E.; Landrot, G. (2015). "Micro-continuum approaches for modeling pore-scale geochemical processes". Reviews in Mineralogy and Geochemistry. 80 (1): 217–246. Bibcode:2015RvMG...80..217S. doi:10.2138/rmg.2015.80.07.
↑ Stoffregen, R. (1 October 1996). "Numerical simulation of mineral-water isotope exchange via Ostwald ripening". American Journal of Science. 296 (8): 908–931. Bibcode:1996AmJS..296..908S. doi:10.2475/ajs.296.8.908.
↑ Zhu, C. (1 January 2009). "Geochemical Modeling of Reaction Paths and Geochemical Reaction Networks". Reviews in Mineralogy and Geochemistry. 70 (1): 533–569. Bibcode:2009RvMG...70..533Z. doi:10.2138/rmg.2009.70.12.
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