Kathleen S (Kathy) Smith, Ph.D. (Former Employee)
Science and Products
Filter Total Items: 68
The importance of mineralogical input into geometallurgy programs The importance of mineralogical input into geometallurgy programs
Mineralogy is the link between ore formation and ore extraction. It is the most fundamental component of geomet programs, and the most important aspect of a life-of-project approach to mineral resource projects. Understanding orebodies is achieved by understanding the mineralogy and texture of the materials, throughout the process, because minerals hold the information required to unlock...
Authors
K. Olson Hoal, J.D. Woodhead, Kathleen S. Smith
A GIS and statistical approach to identify variables that control water quality in hydrothermally altered and mineralized watersheds, Silverton, Colorado, USA A GIS and statistical approach to identify variables that control water quality in hydrothermally altered and mineralized watersheds, Silverton, Colorado, USA
Hydrothermally altered bedrock in the Silverton mining area, southwest Colorado, USA, contains sulfide minerals that weather to produce acidic and metal-rich leachate that is toxic to aquatic life. This study utilized a geographic information system (GIS) and statistical approach to identify watershed-scale geologic variables in the Silverton area that influence water quality. GIS...
Authors
Douglas B. Yager, Raymond H. Johnson, Barnaby W. Rockwell, Jonathan S. Caine, Kathleen S. Smith
Automated quantitative micro-mineralogical characterization for environmental applications Automated quantitative micro-mineralogical characterization for environmental applications
Characterization of ore and waste-rock material using automated quantitative micro-mineralogical techniques (e.g., QEMSCAN® and MLA) has the potential to complement traditional acid-base accounting and humidity cell techniques when predicting acid generation and metal release. These characterization techniques, which most commonly are used for metallurgical, mineral-processing, and
Authors
Kathleen S. Smith, K.O. Hoal, Katherine Walton-Day, J.G. Stammer, K. Pietersen
Geochemical results from stream-water and stream-sediment samples collected in Colorado and New Mexico Geochemical results from stream-water and stream-sediment samples collected in Colorado and New Mexico
Scientists from the U.S. Geological Survey are studying the relationship between watershed lithology and stream-water chemistry. As part of this effort, 60 stream-water samples and 43 corresponding stream-sediment samples were collected in 2010 and 2011 from locations in Colorado and New Mexico. Sample sites were selected from small to midsize watersheds composed of a high percentage of...
Authors
Philip L. Hageman, Andrew S. Todd, Kathleen S. Smith, Ed DeWitt, Mathew P. Zeigler
Pre- and post-remediation characterization of acid-generating fluvial tailings material Pre- and post-remediation characterization of acid-generating fluvial tailings material
The upper Arkansas River south of Leadville, Colorado, USA, contains deposits of fluvial tailings from historical mining operations in the Leadville area. These deposits are potential non-point sources of acid and metal contamination to surface- and groundwater systems. We are investigating a site that recently underwent in situ remediation treatment with lime, fertilizer, and compost...
Authors
Kathleen S. Smith, Katherine Walton-Day, Karin O. Hoal, Rhonda L. Driscoll, K. Pietersen
Approach for environmental baseline water sampling Approach for environmental baseline water sampling
Samples collected during the exploration phase of mining represent baseline conditions at the site. As such, they can be very important in forecasting potential environmental impacts should mining proceed, and can become measurements against which future changes are compared. Constituents in stream water draining mined and mineralized areas tend to be geochemically, spatially, and...
Authors
K. S. Smith
Science and Products
Filter Total Items: 68
The importance of mineralogical input into geometallurgy programs The importance of mineralogical input into geometallurgy programs
Mineralogy is the link between ore formation and ore extraction. It is the most fundamental component of geomet programs, and the most important aspect of a life-of-project approach to mineral resource projects. Understanding orebodies is achieved by understanding the mineralogy and texture of the materials, throughout the process, because minerals hold the information required to unlock...
Authors
K. Olson Hoal, J.D. Woodhead, Kathleen S. Smith
A GIS and statistical approach to identify variables that control water quality in hydrothermally altered and mineralized watersheds, Silverton, Colorado, USA A GIS and statistical approach to identify variables that control water quality in hydrothermally altered and mineralized watersheds, Silverton, Colorado, USA
Hydrothermally altered bedrock in the Silverton mining area, southwest Colorado, USA, contains sulfide minerals that weather to produce acidic and metal-rich leachate that is toxic to aquatic life. This study utilized a geographic information system (GIS) and statistical approach to identify watershed-scale geologic variables in the Silverton area that influence water quality. GIS...
Authors
Douglas B. Yager, Raymond H. Johnson, Barnaby W. Rockwell, Jonathan S. Caine, Kathleen S. Smith
Automated quantitative micro-mineralogical characterization for environmental applications Automated quantitative micro-mineralogical characterization for environmental applications
Characterization of ore and waste-rock material using automated quantitative micro-mineralogical techniques (e.g., QEMSCAN® and MLA) has the potential to complement traditional acid-base accounting and humidity cell techniques when predicting acid generation and metal release. These characterization techniques, which most commonly are used for metallurgical, mineral-processing, and
Authors
Kathleen S. Smith, K.O. Hoal, Katherine Walton-Day, J.G. Stammer, K. Pietersen
Geochemical results from stream-water and stream-sediment samples collected in Colorado and New Mexico Geochemical results from stream-water and stream-sediment samples collected in Colorado and New Mexico
Scientists from the U.S. Geological Survey are studying the relationship between watershed lithology and stream-water chemistry. As part of this effort, 60 stream-water samples and 43 corresponding stream-sediment samples were collected in 2010 and 2011 from locations in Colorado and New Mexico. Sample sites were selected from small to midsize watersheds composed of a high percentage of...
Authors
Philip L. Hageman, Andrew S. Todd, Kathleen S. Smith, Ed DeWitt, Mathew P. Zeigler
Pre- and post-remediation characterization of acid-generating fluvial tailings material Pre- and post-remediation characterization of acid-generating fluvial tailings material
The upper Arkansas River south of Leadville, Colorado, USA, contains deposits of fluvial tailings from historical mining operations in the Leadville area. These deposits are potential non-point sources of acid and metal contamination to surface- and groundwater systems. We are investigating a site that recently underwent in situ remediation treatment with lime, fertilizer, and compost...
Authors
Kathleen S. Smith, Katherine Walton-Day, Karin O. Hoal, Rhonda L. Driscoll, K. Pietersen
Approach for environmental baseline water sampling Approach for environmental baseline water sampling
Samples collected during the exploration phase of mining represent baseline conditions at the site. As such, they can be very important in forecasting potential environmental impacts should mining proceed, and can become measurements against which future changes are compared. Constituents in stream water draining mined and mineralized areas tend to be geochemically, spatially, and...
Authors
K. S. Smith