J. Lindsay Embrey Trustee Assistant Professor
B.S., Environmental Sciences, Texas Christian University, 1998; M.S., Geology, Washington State University, 2000; Ph.D., Earth Science, Dartmouth College, 2009.
A central theme of my research is the study of aqueous metal enrichment and contamination in the natural environment by probing both solution and solid chemistry of natural materials. The exact state of a given metal may control its partitioning between solid and solution under a given set of parameters. This relationship can be used in both forward and reverse reasoning. Exploring the fate of metals under lab controlled or field measured conditions sheds light on behavior of the given metal. Conversely, measuring speciation of natural samples in a well understood system may give information of environmental conditions.
Additionally, my research program investigates solid phases that have traditionally been difficult to observe. Nanoscale minerals and/or poorly crystalline solids are ubiquitous in the natural world and are increasingly being found to play an enormous role in environmental processes. These phases inherently pose problems for data collection, analysis, and interpretation due to their size. Further, numerous phases are often unstable when conditions are altered from ambient posing even greater challenge in observation. These solids are the substrate for biogenic processes, the source of both essential soil nutrients and toxic trace metals, and often the sequestration phases for trace metals that can record environmental conditions.
Quicksall, AN; Bostick, BC; & Sampson, M. Linking organic matter deposition and iron mineral transformations to groundwater arsenic levels in the Mekong delta, Cambodia. Applied Geochemistry. Vol. 23, Issue 11, pp. 3088-3098, Nov 2008.
Papacostas, N; Bostick, BC; Quicksall, AN; & Landis, JD. Geomorphic Controls on Groundwater Arsenic Distribution in the Mekong River Delta, Cambodia. Geology. Vol. 36, Issue 11, pp. 891-894, Nov 2008.
Meyer, EE; Burgreen, BN; Lackey, H; Landis JD; Quicksall, AN; & Bostick, BC. Evidence for Basin Restriction During Syn-Collisional Basin Formation in the Silurian Arisaig Group, Nova Scotia. Chemical Geology. Vol. 256, Issue 1-2, pp. 1-11, Oct. 30, 2008.
deLemos, JL; Bostick, BC; Quicksall, AN; Landis, JD; George, CC; Slagowski, NL; Rock, T; Brugge, D; Lewis, J; & Durant, JL. Rapid Dissolution of Soluble Uranyl Phases in Arid, Mine-Impacted Catchments near Church Rock, NM. Environmental Science and Technology. Vol.42, pp.3951-3957, May 2008.
Meyer, EE; Bostick, BC; Quicksall, AN; Landis, JD; & Link, PK. Ocean Overturn Initiates Microbial Bloom and the Deposition of a Late Sturtian Cap Carbonate. Chemical Geology. (In Review)
Meyer, EE; Bostick, BC; Theissen, K; & Quicksall, AN. Reduced Depositional Environments of a Neoproterozoic synglacial carbonate in the Kingston Peak Formation, Southern Death Valley Region, CA. Geology. (In Review)
Alessi, DS; Forbes, TZ; Quicksall, AN; Sigmon, GE; Burns, PC; & Fein, JB. Highly non-ideal effects of ppm-level substitution on solid-phase solubility. Nature. (In Review)
Quicksall, AN & Bostick BC. Effect of Parallel Iron and Sulfate Reduction on Transient Aqueous Lead and Zinc Concentrations in Contaminated Wetland Soils from the Coeur d’Alene River, ID. Applied Geochemistry. (Submitted)
Quicksall, AN & Bostick, BC. Variable Rates of Microbially-Mediated Iron and Sulfate Reduction: Impact on Aqueous Arsenic Levels. Geochimica et Cosmochimica Acta. (Submitted)
Quicksall, AN; Bostick, BC; & Landis, JD. Iron Mineralogical Transformations and Associated Arsenic Behavior under Progressive Sulfidization. (In Prep)
Quicksall, AN; Siegfried, MR; Webb, SM; & Bostick BC. Real-time Synchrotron Wide Angle X-ray Scattering Analysis of Mineralogical Transformations from Ferrihydrite Sulfidization. (In Prep)
Quicksall, AN; Barton LE; Kosel, TH; & Maurice, PA. Size-Driven Structural Changes in Hematite Nanoparticles. (In Prep)
Hunter EL; Quicksall, AN; Haack, EA; Johnston, CT; & Maurice, PA. Lead -Siderophore Co-Sorption into the Interlayer of Montmorillonite. (In Prep)
Quicksall, AN; Hunter EL; Haack, EA; Mishra, B; Bunker, BA; & Maurice, PA. Characterization of Pb sorption complexes to montmorillonite in the presence of the bacterial siderophore DFOB. (In Prep)