Philip L Verplanck
Philip Verplanck is a Research Geologist with the Geology, Geophysics, and Geochemistry Science Center.
Science and Products
Filter Total Items: 85
Aluminum mobility in mildly acidic mine drainage: Interactions between hydrobasaluminite, silica and trace metals from the nano to the meso-scale Aluminum mobility in mildly acidic mine drainage: Interactions between hydrobasaluminite, silica and trace metals from the nano to the meso-scale
Aluminum precipitates control the hydrochemistry and mineralogy of a broad variety of environments on Earth (e.g., acid mine drainage, AMD, coastal wetlands, boreal and alpine streams, tropical acid sulfate soils, laterites and bauxites, …). However, the geochemical and mineralogical processes controlling Al (and other associated metals and metalloids) transport and removal in those...
Authors
Manuel A. Caraballo, Richard B. Wanty, Philip Verplanck, Leonardo Navarro-Valdivia, Carlos Ayora, Michael Hochella
Rare earth element mineral deposits in the United States Rare earth element mineral deposits in the United States
Because of their unique special chemical properties, many of the metals in the group of rare earth elements (REEs) have essential applications in 21st century technologies. Examples of products that use REEs are cell phones, computers, fluorescent and light-emitting-diode lights, flat-screen television and computer monitors, and in high-strength magnets used by clean energy technologies...
Authors
Bradley S. Van Gosen, Philip L. Verplanck, Poul Emsbo
The ~1.85 Ga carbonatite in north China and its implications on the evolution of the Columbia supercontinent The ~1.85 Ga carbonatite in north China and its implications on the evolution of the Columbia supercontinent
Mantle-derived carbonatites provide a unique window in the understanding of mantle characteristics and dynamics, as well as insight into the assembly and breakup of supercontinents. As a petrological indicator of extensional tectonic regimes, Archean/Proterozoic carbonatites provide important constraints on the timing of the breakup of ancient supercontinents. The majority of the...
Authors
Yuling Xie, Yunwei Qu, Richen Zhong, Philip L. Verplanck, Sebastien Meffre, Daoxue Xu
Strategic and critical metals in produced geothermal fluids from Nevada and Utah Strategic and critical metals in produced geothermal fluids from Nevada and Utah
Herein we summarize the results of an investigation dealing with the concentrations and inventories of strategic, critical and valuable materials (SCVM) in produced fluids from geothermal and hydrocarbon reservoirs (50-250° C) in Nevada and Utah. Water samples were collected from thirty-four production wells across eight geothermal fields, the Uinta Basin oil/gas province in northeast...
Authors
Stuart F. Simmons, Stephe H. Kirby, Philip L. Verplanck, Karen Duttweiler Kelley
Cinnamon gulch revisited: Another look at separating natural and mining-impacted contributions to instream metal load Cinnamon gulch revisited: Another look at separating natural and mining-impacted contributions to instream metal load
Baseline, premining data for streams draining abandoned mine lands is virtually non existent, and indirect methods for estimating premining conditions are needed to establish realistic, cost effective cleanup goals. One such indirect method is the proximal analog approach, in which premining conditions are estimated using data from nearby mineralized areas that are unaffected by mining...
Authors
Robert L. Runkel, Philip L. Verplanck, Briant Kimball, Katherine Walton-Day
Rare-earth elements Rare-earth elements
The rare-earth elements (REEs) are 15 elements that range in atomic number from 57 (lanthanum) to 71 (lutetium); they are commonly referred to as the “lanthanides.” Yttrium (atomic number 39) is also commonly regarded as an REE because it shares chemical and physical similarities and has affinities with the lanthanides. Although REEs are not rare in terms of average crustal abundance...
Authors
Bradley S. Van Gosen, Philip L. Verplanck, Robert R. Seal,, Keith R. Long, Joseph Gambogi
Science and Products
Filter Total Items: 85
Aluminum mobility in mildly acidic mine drainage: Interactions between hydrobasaluminite, silica and trace metals from the nano to the meso-scale Aluminum mobility in mildly acidic mine drainage: Interactions between hydrobasaluminite, silica and trace metals from the nano to the meso-scale
Aluminum precipitates control the hydrochemistry and mineralogy of a broad variety of environments on Earth (e.g., acid mine drainage, AMD, coastal wetlands, boreal and alpine streams, tropical acid sulfate soils, laterites and bauxites, …). However, the geochemical and mineralogical processes controlling Al (and other associated metals and metalloids) transport and removal in those...
Authors
Manuel A. Caraballo, Richard B. Wanty, Philip Verplanck, Leonardo Navarro-Valdivia, Carlos Ayora, Michael Hochella
Rare earth element mineral deposits in the United States Rare earth element mineral deposits in the United States
Because of their unique special chemical properties, many of the metals in the group of rare earth elements (REEs) have essential applications in 21st century technologies. Examples of products that use REEs are cell phones, computers, fluorescent and light-emitting-diode lights, flat-screen television and computer monitors, and in high-strength magnets used by clean energy technologies...
Authors
Bradley S. Van Gosen, Philip L. Verplanck, Poul Emsbo
The ~1.85 Ga carbonatite in north China and its implications on the evolution of the Columbia supercontinent The ~1.85 Ga carbonatite in north China and its implications on the evolution of the Columbia supercontinent
Mantle-derived carbonatites provide a unique window in the understanding of mantle characteristics and dynamics, as well as insight into the assembly and breakup of supercontinents. As a petrological indicator of extensional tectonic regimes, Archean/Proterozoic carbonatites provide important constraints on the timing of the breakup of ancient supercontinents. The majority of the...
Authors
Yuling Xie, Yunwei Qu, Richen Zhong, Philip L. Verplanck, Sebastien Meffre, Daoxue Xu
Strategic and critical metals in produced geothermal fluids from Nevada and Utah Strategic and critical metals in produced geothermal fluids from Nevada and Utah
Herein we summarize the results of an investigation dealing with the concentrations and inventories of strategic, critical and valuable materials (SCVM) in produced fluids from geothermal and hydrocarbon reservoirs (50-250° C) in Nevada and Utah. Water samples were collected from thirty-four production wells across eight geothermal fields, the Uinta Basin oil/gas province in northeast...
Authors
Stuart F. Simmons, Stephe H. Kirby, Philip L. Verplanck, Karen Duttweiler Kelley
Cinnamon gulch revisited: Another look at separating natural and mining-impacted contributions to instream metal load Cinnamon gulch revisited: Another look at separating natural and mining-impacted contributions to instream metal load
Baseline, premining data for streams draining abandoned mine lands is virtually non existent, and indirect methods for estimating premining conditions are needed to establish realistic, cost effective cleanup goals. One such indirect method is the proximal analog approach, in which premining conditions are estimated using data from nearby mineralized areas that are unaffected by mining...
Authors
Robert L. Runkel, Philip L. Verplanck, Briant Kimball, Katherine Walton-Day
Rare-earth elements Rare-earth elements
The rare-earth elements (REEs) are 15 elements that range in atomic number from 57 (lanthanum) to 71 (lutetium); they are commonly referred to as the “lanthanides.” Yttrium (atomic number 39) is also commonly regarded as an REE because it shares chemical and physical similarities and has affinities with the lanthanides. Although REEs are not rare in terms of average crustal abundance...
Authors
Bradley S. Van Gosen, Philip L. Verplanck, Robert R. Seal,, Keith R. Long, Joseph Gambogi