Laura J. Crossey

Ph.D., University of Wyoming, 1985 (Professor and Associate Chair)
(505) 277-5349 Email:

Research and Academic Interests:

Aqueous and Sedimentary Geochemistry. Applications of low-temperature geochemistry to problems in hydrochemistry, diagenesis, geomicrobiology, and geothermal processes. My research approach combines field examination of modern environments (biogeochemistry of water and sediments) with laboratory analysis as well as core and outcrop evaluations applied to evaluate paleohydrology, spring sustainability and reservoir/aquifer characteristics. Activities include geoscience outreach, K-12 outreach, and science education research as well as programs to increase the participation of under-represented groups in the science disciplines. Prospective graduate students can read the letter linked here. To find out more about the variety of research projects, check out Laura J. Crossey Personal Page

List of Related Web Links:

Laura J. Crossey Personal Page
The Trail of Time at Grand Canyon.
New Mexico EPSCoR.
UNM LSAMP Programs.
E-MRGE G K-12 Program.
Hydrogeoecology Research

Listing of Recent Publications:

"Continental smokers couple mantle degassing and unique microbiology within continents", 2016, Crossey, L.J., Karlstrom, K.E., Schmandt, B., Crow, R., Colman*, D., Cron*, B., Takacs-Vesbach, T.D., Dahm, C., Northup, D.E., Hilton, D.R., Ricketts*, J.R., Lowry, A.R., Earth and Planetary Science Letters, v. 435, p. 22-30,

"The importance of groundwater in propagating downward integration of the 6-5 Ma Colorado River System: Geochemistry of springs, travertines and lacustrine carbonates of the Grand Canyon region over the past 12 million years", 2015, Crossey, L.C., Karlstrom, K.E., Dorsey, R., Pearce*, J., Wan, E., Beard, L.S., Asmerom, Y., Polyak, V., Crow, R.S, Cohen, A., Bright*, J., Huth, Geosphere, v. 11; no. 3; p. 660–682; doi:10.1130/GES01073.1.

“An analysis of geothermal and carbonic springs in the western United States sustained by deep fluid inputs”, 2014, Colman*, D., Garcia, J., Crossey, L.J., Karlstrom, K., Jackson-Weaver, O., Takacs-Vesbach, Geobiology,v. 12, p. 83-98.

“Surface response to mantle convection beneath the Colorado Rocky Mountains and Colorado Plateau”, 2012, Karlstrom, K.E., Coblentz, D., Dueker, K., Ouimet, W., Kirby, E., Van Wijk, J., *Schmandt, B., Kelley, S., Lazear, G., Crossey, L.J., *Crow, R., Aslan, A, *Darling, A., Aster, R., *MacCarthy, J., *Hansen, S.M., *Stachnik, J., Stockli, D.F., *Hoffman, M., *McKeon, R., *Feldman, J. Heizler, M., *Donahue, M.S., and the CREST working group, Lithosphere, v. 4 no. 1, p. 3-22.

“The La Madera travertines, Rio Ojo Caliente, northern New Mexico: investigating the linked system of CO2-rich springs and travertines as neotectonic and paleoclimate indicators”, 2011, Crossey, L.J., Karlstrom, K.E., Newell, D.L., *Kooser, A., and *Tafoya, A., in Koning, D.J., Karlstrom K.E., Kelley, S.A., Lueth, V.W., and Aby, S. B., eds., “Geology of the Tusas Mountains and Ojo Caliente Area”, New Mexico Geological Society, Guidebook 62, p. 301-316.

“Deep Permeable Fault-Controlled Helium Transport and Limited Mantle Flux in Two Extensional Geothermal Systems in the Great Basin, USA”, 2011, Banerjee, A., Person, M., Hofstra, A., Sweetkind, D., Cohen, D., Sabin, A., Unruh, J., Zyvoloski, G., Gable, C.W., Crossey, L., and Karlstrom, K., Geology, v. 39, p. 195-198.

“Late Cenozoic evolution of the Colorado Rockies: Evidence for Neogene uplift and drainage integration”, 2010, Aslan, A., Karlstrom, K. E., Crossey, L. J., Kelley, S., Cole, R., Lazear, G., and Darling, A., 2010, , in Morgan, L. A., and Quane, S. L., eds., in “Through the Generations: Geologic and Anthropogenic Field Excursions in the Rocky Mountains from Modern to Ancient”, Geological Society of America Field Guide 18, p. 21-54.

“Experimental analysis of arsenic precipitation during microbial sulfate and iron reduction in model aquifer sediment reactors”, 2010, *Kirk, M.F., Roden, E.E., Crossey, L.J., Brearley, A.J., Spilde, M., Geochimica et Cosmochimica Acta, v. 74, p. 2538-2555.

“Studies of informal geologic time learning at the ‘Trail of Time’ in Grand Canyon National Park”, 2009, Semken, S., Dodick, J., *Frus, R., Wells, M., Perry, D., Bryan, J., Williams, M., *Crow, R., Crossey, and Karlstrom, K.,The Informal Learning Review, 99, p. 1-5.

“CREST Experiment Probes the Roots and Geologic History of the Colorado Rockies”, 2009, Aster, R., *MacCarthy, J., Heizler, M., Kelley, S., Karlstrom, K., Crossey, L., Dueker, K., and the CREST Team, The Outcrop, v. 38, p. 6-11.

"Effect of saline groundwater upwelling on iron and manganese cycling in the Rio Grande floodplain aquifer", 2009, *Kirk, M.F., Crossey, L.J., Takacs-Vesbach, C., Newell, D.L., Bowman, R.S., Applied Geochemistry, v. 24, p. 426-437.

"Degassing of mantle-derived CO2 and 3He from springs in the southern Colorado Plateau region— neotectonic connections and implications for groundwater systems", 2009, Crossey, L.J., Karlstrom, K.E., Springer, A., Newell*, D., Hilton, D., and Fischer, T., Geological Society of America Bulletin, v. 121, p. 1034-1053.

"Informal geoscience education on a grand scale: the Trail of Time exhibition at Grand Canyon", 2008, Karlstrom, K., Semken, S., Crossey, L., Perry, D., Gyllenhaal, E. D., Dodick, J., Williams, M., Hellmich-Bryan, J., Crow*, R., Bueno Watts*, N., & Ault, C., Journal of Geoscience Education, v. 56, p. 354-361.

"Model for tectonically driven incision of the less than 6 Ma Grand Canyon", 2008, Karlstrom, K.E., Crow*, R, Crossey, L.J., Coblentz, D., and van Wijk, J., Geology, v. 36, p. 835-838.

"Molecular Characterization of the Diversity and Distribution of a Thermal Spring Microbial Community using rRNA and Functional Genes", 2008, Hall*, J.R., Mitchell*, K.R., Jackson-Weaver*, O., Crossey, L.J., Kooser*, A., Cron, B.* and Takacs-Vesbach, C.D., Applied and Environmental Microbiology, v. 74, p. 4910-4922.

"Biogeochemistry and mineral cycling of a regulated shallow alluvial river aquifer in a semi-arid environment", 2007, *Vinson, D.S., Crossey, L.J., *Block, S. and Dahm, C.N.: Geosphere, v. 3 No. 5, p. 366-380.

"Oxygen isotope composition of modern and mid-Holocene banded travertine, Grand Canyon, Arizona, USA",2006, *O'Brien, G.*, Kaufman, D., Sharp, W., Atudorei, V., Parnell, R., Crossey, L.,Quaternary Research, v. 65, p. 366-379.

"Tectonic inferences from the ca. 1255-1100 Ma Unkar Group and Nankoweap Formation, Grand Canyon: Intracratonic deformation and basin formation during protracted Grenville orogenesis", 2006, Bloch, J.D., Timmons, J.M., Crossey, L.J., Gehrels, G.E., Karlstrom, K.E., Journal of Sedimentary Petrology, v. 76, p. 1106-1119.

"Dissected hydrologic system at the Grand Canyon: Interaction between deeply derived fluids and plateau aquifer waters in modern springs and travertine", 2006, Crossey, L.J., Fischer, T.B., Patchett, P.J., Karlstrom, K.E., Hilton, D.R., *Newell, D.L., Huntoon, P., and *Reynolds, A.C., Geology, v. 34, 25-28.

"Natural geochemical analogues for carbon dioxide storage in deep geological porous reservoirs, a United Kingdom perspective", 2005, Haszeldine, R.S., Quinn, O., England, G., Wilkenson, M., Graham, C., Shipton, Z., Ballentine, C., Crossey, L., Evans, J., and Heath, J., Oil and Gas Science and Technology, v.60, p. 33-49.

"Geomicrobiology of cave ferromanganese deposits: a field and laboratory investigation", 2005, Spilde, M.A., Northup, D.E., Boston, P.J., Schelble, R.T., Dano, K.E., Crossey, L.J., Dahm, C.N., Geomicrobiology Journal, v. 22, p. 99-116.

"Pleistocene geomorphology and geochronology of eastern Grand Canyon: Linkages of landscape components during climate changes", 2005, Anders*, M.A., Pederson, J.L., Rittenhour, T.M., Sharp, W.D., Gosse, J.C., Karlstrom, K.E., Crossey, L.J., Goble, R.J., Stockli, L., and Yang, G., Quaternary Science Reviews v. 24, p. 2428-2448.

"Inferences from the ca. 1255-1100 Ma Unkar Group and Nankoweap Formation, Grand Canyon: Intracratonic deformation and basin formation during protracted Grenville orogenesis",2005, Timmons, J.M., Karlstrom, K.E., Heizler, M.T., Bowring, S.A., Gehrels, G.E., Crossey, L.J., Geological Society of America Bulletin, v. 117, 1573-1595.

"Delta13C composition of organic carbon and dolomites, lithostratigraphy and mudrock petrology of the Neoproterozoic Chuar Group (~770-742 Ma), Grand Canyon: Implications for pre-742 Ma climate change", 2005, Dehler, C.M., Elrick, M., Bloch, J.D., Crossey, L.J., Karlstrom, K.E. and DesMarais, D.J., Geological Society of America Bulletin, v. 117, 32-45.

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