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Dr. Laura J. Crossey

Ph.D., University of Wyoming, 1985. (Professor) (505) 277-5349 lcrossey@unm.edu

Research and Academic Interests:

Aqueous and Sedimentary Geochemistry. Applications of low-temperature geochemistry to problems in hydrochemistry, sedimentary diagenesis, and geomicrobiology. My research approach combines field examination of modern early diagenetic environments (biogeochemistry of water and sediments) with laboratory analysis as well as core and outcrop evaluations applied to evaluate paleohydrology 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 (such as NM Alliance for Minority Participation).

Dr. Crossey

Prospective graduate students can read the letter linked here.

Past & Current Students:

Masters Students Supervised

Peter McCarville (1994), Karen Roche (1998), Laura Hagan Petronis (2000), Susan Block (2002), *David Vinson (2002), Ron Amato (MWR, 2004), Tom Loveland (2004), Eileen Embid (2009), James Dyer (MWR,2006), Jan Curtis (MWR, 2009), Jessica  Lopez Pearce (2010), *Amy Williams (2009), Elizabeth Premo (2012), *Ara Kooser (2011),  *Brandi Cron (2011), Lauren Sherson (2012), April Tafoya (2012), *Gloria Jimenez (2014), Pavel Vakhlamov (current), Christopher McGibbon (current), Valerie Blomgren (current), Jared Smith (current) 

* continued on for  PhD

PhD Students Supervised

Patrick Longmire (Co-Chair; 1991), Paul Eberly (Co-Chair), Daniel Larsen (1994), Jennifer Loomis (1996), Deborah Bergfeld (Co-Chair, 2001), Armand Groffman (2002), Angela McLain (Co-Chair), Barton Faulkner (Co-Chair, 2006), Dennis Newell (Co-Chair, 2007), Matthew Kirk (2008), Alexandra Priewisch (2014), Rebecca Frus (current) 

My Classes:

EPS 101: How the Earth Works (Freshman Learning Community)
EPS 415/515: Geochemistry of Natural Waters
EnvSc 430/530: Advanced Environmental Science
EPS 558/Biol 558: Geomicrobiology
EPS 420/520L: Advanced Field Geology

Current & Recent Proposals & Contracts:

  • "Energize New Mexico: Geothermal Energy and Water Quality": NSF EPSCoR (7/01/2013 – 6/30/2018);
  • "MRI: Acquisition of an Inductively Coupled Plasma-Mass Spectrometer (ICP-MS) System for Elemental Analysis and Speciation": NSF MRI (11/01/2012 – 10/31/2013) ; w/B. Thomson , M. Ali and others.
  • "Climate change impacts on New Mexico’s mountain sources of water (water quality)": NSF EPSCoR (9/01/2008 – 8/31/2011) ; w/C. Dahm, Biology
  • "Spring Survey and Water Monitoring, Cibola National Forest, NM": USFS (11/01/2010 –10/31/2015)
  • "US Egypt Cooperative Research: Comparisons between New Mexico and Egyptian travertines and tufas": NSF OISE (10/01/2010-9/30/2012),w/ Karl Karlstrom
  • "Climate change impacts on New Mexico’s mountain sources of water (water quality)": NSF EPSCoR (9/01/2008 – 8/31/2011) ; w/C. Dahm, Biology
  • "Continental Smokers: evaluating mantle degassing, CO2 flux, geomicrobiology, and water quality in extensional continental regimes"; NSF EAR-Hydrolgic Sciences, 1/1/2009-12/31/2012; w/K. Karlstrom, C. Vesbach & D. Northup (Bio)
  • "Biogenic cave carbonates: Identifying surface carbon input to subsurface ecosystems": NSF Geochem Program (w/Diana Northup and Leslie Melim)
  • "CREST: Colorado Rockies Experiment and Seismic Transects"; Continental Dynamics, 11/01/2007-12/31/2010 (w/ K. Karlstrom)
  • "Dating sedimentary sequences: In situ U/Th-Pb microprobe dating of early diagenetic monazite in Neoproterozoic black shales": NSF Sed. Geo & Paleo Program; (6-1-07 to 7-31-09) w/ K. Karlstrom
  • "Testing models for incision and neotectonics of the Grand Canyon region: field studies, 40Ar/39Ar dating of Neogene basalts, and detrital zircon and monazite studies of alluvial deposits": NSF Tectonics Program; (6-1-07 to 7-31-09), w/ K. Karlstrom
  • "CO2 springs and travertines of the southwestern U.S.: Hydrologic pathways linking tectonism and water quality": NSF Hydrologic Sciences Program (01/01/2006-12/31/2008), w/ K. Karlstrom & T. Fischer
  • "Track 1, GK-12: Ecohydrogeology in the Middle Rio Grande Environment"; NSF/EHR; S. Collins (Biology Dept., UNM) and L.Crossey.
  • "Geomicrobial Interactions of Microbial Communities in Cave Deep Subsurface Environments: A Novel Extreme Environment" with Clifford Dahm and Diana Northup (UNM Biology), and Mike Spilde (Institute of Meteoritics), NSF Life in Extreme Environments (LexEn) Program
  • "Biogeochemical Cycling of Redox-sensitive Metals During Surface-subsurface Water Exchange in a Shallow Alluvial Aquifer" with H.M. Valett (Biologist, Virginia Tech), NSF Environmental Geochemistry/Biogeochemistry (EGB) Program
  • "Collaborative research: Mesoproterozoic tectonics of inboard southwestern Laurentia: insight into assembly and configuration of Rodinia from study of sedimentary successions." with Karlstrom, John Bloch, Mike Williams and Matt Heizler, NSF Tectonics Program;
  • "Acquisition of an ICP-OES for Geoscience Research at the University of New Mexico" with Abdul Mehdiali, Yemane Asmerom, Tobias Fischer, Jane Selverstone, NSF Instrumentation and Facilities Program
  • "Dissected hydrologic system at Grand Canyon: interaction between upper and lower world waters in modern springs and ancient travertines" with Tobias Fischer, NSF Hydrologic Sciences Program
  • "Identification of Microbial Signatures in Biogenic Cave Ferromanganese Deposits" with Diana Northup, Mike Spilde, Cliff Dahm, and Penny Boston (NMT), NSF Biological Sciences Division

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