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- Publications
- Influence
Diel biogeochemical processes and their effect on the aqueous chemistry of streams: A review
- D. Nimick, C. Gammons, S. R. Parker
- Chemistry
- 7 April 2011
Abstract This review summarizes biogeochemical processes that operate on diel, or 24-h, time scales in streams and the changes in aqueous chemistry that are associated with these processes. Some… Expand
Hydrogeochemistry and rare earth element behavior in a volcanically acidified watershed in Patagonia, Argentina
- C. Gammons, S. Wood, +4 authors G. Baffico
- Geology
- 5 November 2005
Abstract The Rio Agrio watershed in northern Patagonia, Argentina is naturally acidic due to discharges of volcanic H 2 SO 4 , HCl, and HF at its headwaters near the summit of Copahue Volcano. A… Expand
Diel behavior of rare earth elements in a mountain stream with acidic to neutral pH
- C. Gammons, S. Wood, David A. Nimick
- Geology
- 1 August 2005
Abstract Diel (24-h) changes in concentrations of rare earth elements (REE) were investigated in Fisher Creek, a mountain stream in Montana that receives acid mine drainage in its headwaters. Three… Expand
Biogeochemical controls on Diel cycling of stable isotopes of dissolved O2 and dissolved inorganic carbon in the Big Hole River, Montana.
- S. R. Parker, S. Poulson, C. Gammons, M. DeGrandpre
- Environmental Science, Medicine
- Environmental science & technology
- 18 August 2005
Rivers with high biological productivity typically show substantial increases in pH and dissolved oxygen (DO) concentration during the day and decreases at night, in response to changes in the… Expand
The aqueous geochemistry of the rare earth elements. Part XIV: The solubility of rare earth element phosphates from 23 to 150 °C
- Z. Çetiner, S. Wood, C. Gammons
- Chemistry
- 15 April 2005
Abstract Rare earth element (REE) phosphates such as monazite and xenotime are important as ore minerals, potential hosts of radioactive waste, and target phases for isotopic dating. However, there… Expand
Diel cycles in dissolved metal concentrations in streams: Occurrence and possible causes
- D. Nimick, C. Gammons, T. E. Cleasby, J. Madison, Don Skaar, Christine Brick
- Chemistry, Geology
- 1 September 2003
[1] Substantial diel (24-hour) cycles in dissolved (0.1-μm filtration) metal concentrations were observed during low flow for 18 sampling episodes at 14 sites on 12 neutral and alkaline streams… Expand
Diel behavior of iron and other heavy metals in a mountain stream with acidic to neutral pH: Fisher Creek, Montana, USA
- C. Gammons, D. Nimick, S. R. Parker, T. E. Cleasby, R. McCleskey
- Chemistry
- 15 May 2005
Abstract Three simultaneous 24-h samplings at three sites over a downstream pH gradient were conducted to examine diel fluctuations in heavy metal concentrations in Fisher Creek, a small mountain… Expand
Factors controlling copper solubility and chalcopyrite deposition in the Sungun porphyry copper deposit, Iran
- A. Hezarkhani, A. E. Williams-Jones, C. Gammons
- Geology
- 23 November 1999
Abstract The Sungun porphyry copper deposit is hosted in a Diorite/granodioritic to quartz-monzonitic stock that intruded Eocene volcanosedimentary and Cretaceous carbonate rocks. Copper… Expand
Creating Lakes from Open Pit Mines: Processes and Considerations, Emphasis on Northern Environments
- C. Gammons, L. Harris, J. Castro, Peter A. Cott, B. W. Hanna
- Environmental Science
- 2009
Gammons, C. H., Harris, L.N., Castro J.M., Cott, P.A., and Hanna, B.W. 2009. Creating lakes from open pit mines: processes and considerations with emphasis on northern environments. Can. Tech. Rep.… Expand
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Chemical mobility of gold in the porphyry-epithermal environment
- C. Gammons, A. Williams-Jones
- Chemistry
- 1 February 1997
Using recently published experimental data, we have calculated the solubility of gold for simplified magmatic fluids that cool between 500 degrees and 300 degrees C. The starting fluid has the… Expand
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