Trace Element Cycling

 

GSL-AntelopeIsland  

Fluxes

Proposed selenium discharges to the Great Salt Lake motivated a comprehensive study of selenium mass balance in the lake, focusing on loads from rivers, streams, and effluents, and removal of selenium from the lake via permanent sedimentation and volatilization. (Diaz et al., 2009; Beisner et al., 2009; Oliver et al., 2009, Naftz et al., 2009; Johnson et al., 2006)

FFFstds

Flow field flow fractionation for nano-size range of particles (Diaz et al., Applied Geochem., 2009).

 

FFFDiaz

Flow field flow fractionation of particles from the Deep and Shallow brine layers of the Great Salt Lake (Diaz et al., Applied Geochem., 2009).

CoreCut BuoySnag   WadeOliver ximenapict
Bill Johnson cutting cores from the Great Salt Lake (collected with USGS). Dr. Johnson snagging a buoy on the sediment traps.   Wade Oliver measuring upward volatile selenium flux on the Great Salt Lake. Dr. Ximena Diaz
GregAbbyCore GregAbby AbbyLab
Greg Carling & Abigail Rudd collecting cores from Farmington Bay to examine the spatial variation in mercury methylation rates in the sediment & water column. (Farmington Bay, Great Salt Lake, Utah) Abby & Greg love field work! (Farmington Bay, Great Salt Lake, Utah) Abigail also loves the lab work!
MeGregEcuador GregAbbyEddy.jpg   EddyZaruma GregMeCotopaxi
Dr. Johnson & graduate student Greg Carling collect a water sample from a stream in the upper Amazon Basin of Ecuador. Greg Carling, Eddy Pazmino, & Abby Rudd collecting samples in Nambija Ecuador.   Eddy (El Toro) Pazmino collecting a water sample near Zaruma, Ecuador. Greg Carling & Bill Johnson walking down after hiking to the summit of Cotopaxi (Eddy Pazmino is right behind).
Kim Beisner teaching 6th graders to Navigate the waters of the Great Salt Lake on the Salt Island Princess Kim Beisner collecting surface sediment samples for selenium leaching tests on the south shore of the Great Salt Lake      
Kim Beisner teaching 6th graders to Navigate the waters of the Great Salt Lake on the Salt Island Princess Kim Beisner collecting surface sediment samples for selenium leaching tests on the south shore of the Great Salt Lake      
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Prof. William Johnson | Frederick Albert Sutton Bldg | Rm 441 | 115 S. 1460 E. | Salt Lake City, UT | 84112
Office: (801) 581-5033 | Email: william.johnsonutah.edu