Search Results - "Bain, Jeff"

Sphalerite weathering and controls on Zn and Cd migration in mine waste rock: An integrated study from the molecular scale to the field scale by Bao, Zhongwen, Al, Tom, Bain, Jeff, Shrimpton, Heather K., Finfrock, Y. Zou, Ptacek, Carol J., Blowes, David W.

“…[Display omitted] •Cross-scale analytical techniques are utilized to delineate mechanisms of sphalerite weathering in a mine waste-rock pile.•Oxidation causes…”
Get full text

Removal of arsenic and metals from groundwater impacted by mine waste using zero-valent iron and organic carbon: Laboratory column experiments by Angai, Joanne U., Ptacek, Carol J., Pakostova, Eva, Bain, Jeff G., Verbuyst, Brent R., Blowes, David W.

“…Acid mine drainage and the associated contaminants, including As and metals, are ongoing environmental issues. Passive remediation technologies have the…”
Get full text

Microbiological and geochemical characterization of As-bearing tailings and underlying sediments by Verbuyst, Brent R., Pakostova, Eva, Paktunc, Dogan, Bain, Jeff G., Finfrock, Y. Zou, Saurette, Emily M., Ptacek, Carol J., Blowes, David W.

“…Over the past 100 years, extensive oxidation of As-bearing sulfide-rich tailings from the abandoned Long Lake Gold Mine (Canada) has resulted in the formation…”
Get full text

A cross scale investigation of galena oxidation and controls on mobilization of lead in mine waste rock by Bao, Zhongwen, Al, Tom, Couillard, Martin, Poirier, Glenn, Bain, Jeff, Shrimpton, Heather K., Finfrock, Y. Zou, Lanzirotti, Antonio, Paktunc, Dogan, Saurette, Emily, Hu, Yongfeng, Ptacek, Carol J., Blowes, David W.

“…Galena and Pb-bearing secondary phases are the main sources of Pb in the terrestrial environment. Oxidative dissolution of galena releases aqueous Pb and SO4…”
Get full text

Geochemical and mineralogical investigation of cemented crusts in the tailings cover at Long Lake Gold Mine, Sudbury, Canada by Sapkota, Birendra, Verbuyst, Brent, Bain, Jeff, Ptacek, Carol, Blowes, David, Al, Tom

“…In mine tailings, precipitation of secondary minerals may cement the tailings material and form cemented crusts or hardpans. Hardpans typically form beneath…”
Get full text

Geochemistry and mineralogy of legacy tailings under a composite cover by Zhang, Aria, Bain, Jeff G., Schmall, Adrienne, Ptacek, Carol J., Blowes, David W.

Get full text

Mineralogy-dependent sulfide oxidation via polysulfide and thiosulfate pathways during weathering of mixed-sulfide bearing mine waste rock by Bao, Zhongwen, Bain, Jeff, Saurette, Emily, Zou Finfrock, Y., Hu, Yongfeng, Ptacek, Carol J., Blowes, David W.

“…Tracking the S oxidation pathway in sulfide-bearing mine waste-rock piles is complicated by variations in water content, O2 and Fe3+ concentrations, microbial…”
Get full text

Delineation of the spatial variability of carbonate and sulfide minerals in mine waste-rock piles using geostatistics by Bao, Zhongwen, Wilson, David, Bain, Jeff, Ptacek, Carol J., Blowes, David W.

“…[Display omitted] •Geostatistical analyses of C and S contents in waste-rock piles at three mine sites.•Log-normal distributions of C and S contents persist in…”
Get full text

Faro Waste Rock Project: Characterizing geochemical heterogeneity in sulfide- and carbonate-rich waste rock by Bao, Zhongwen, Bain, Jeff, Holland, Steven P., Wilson, David, MacKenzie, Peter, Ptacek, Carol J., Blowes, David W.

“…Sustained oxidation of sulfide minerals in waste rock generates acid mine drainage for time frames of hundreds to thousands of years. Management to minimize…”
Get full text

Seasonal hydrology and gas transport in a composite cover on sulfide tailings by Zhang, Aria, Bain, Jeff, Schmall, Adrienne, Ptacek, Carol J., Blowes, David W.

“…This study presents the field performance of a five-layer composite cover to mitigate acid mine drainage in legacy sulfide tailings in northern Ontario,…”
Get full text

Sphalerite weathering and controls on Zn and Cd migration in mine waste rock: An integrated study from the molecular scale to the field scale by Bao, Zhongwen, Al, Tom, Bain, Jeff, Shrimpton, Heather K., Finfrock, Y. Zou, Ptacek, Carol J., Blowes, David W.

“…Degraded water quality and environmental impacts caused by weathering of sulfide-bearing mine wastes are a legacy remaining at many historical mine sites…”
Get full text

Faro Waste Rock Project: Characterizing Variably Saturated Flow Behavior Through Full‐Scale Waste‐Rock Dumps in the Continental Subarctic Region of Northern Canada Using Field Measurements and Stable Isotopes of Water by Bao, Zhongwen, Blowes, David W., Ptacek, Carol J., Bain, Jeff, Holland, Steven P., Wilson, David, Wilson, Ward, MacKenzie, Peter

“…Understanding water flow through variably saturated waste‐rock dumps is important for determining the extent of sulfide‐mineral oxidation, contaminant…”
Get full text

Mineralogy-dependent sulfide oxidation via polysulfide and thiosulfate pathways during weathering of mixed-sulfide bearing mine waste rock by Bao, Zhongwen, Bain, Jeff, Saurette, Emily, Zou Finfrock, Y., Hu, Yongfeng, Ptacek, Carol J., Blowes, David W.

“…Tracking the S oxidation pathway in sulfide-bearing mine waste-rock piles is complicated by variations in water content, O2 and Fe3+ concentrations, microbial…”
Get full text

Hydrogeochemical Response of a Variably Saturated Sulfide‐Bearing Mine Waste‐Rock Pile to Precipitation: A Field‐Scale Study in the Discontinuous Permafrost Region of Northern Canada by Bao, Zhongwen, Bain, Jeff, Holland, Steven P., Wilson, David, Ptacek, Carol J., Blowes, David W.

“…Globally, drainage from sulfide‐bearing waste‐rock piles, containing high concentrations of toxic metal(loid)s, can severely degrade surrounding ecosystems…”
Get full text

Microbial community structure within a weathered waste-rock pile overlain by a monolayer soil cover by McNeill, Brayden J., Pakostova, Eva, Bain, Jeff G., Gould, W. Douglas, Amos, Richard T., Wilson, G. Ward, Ptacek, Carol J., Blowes, David W.

“…A historic waste-rock stockpile (WRS) at the Detour Lake Mine (DLM), covered with a thin layer (<1 m) of local overburden, was studied to determine the…”
Get full text