Geochemical Analyses of Rock, Sediment, and Water from the Region In and Around the Tuba City Landfill, Tuba City, Arizona

Johnson, Raymond H.; Wirt, Laurie

doi:10.3133/ofr20091020

Cited by 3 publications

(8 citation statements)

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“…An analysis of the stable isotopes of U in a location where the Chinle Fm. did not outcrop revealed that high U concentrations downstream from mine tailings were associated with a short groundwater residence time (Johnson and Writ, 2009).…”

Section: U Concentrations In Waters and Minesmentioning

confidence: 97%

“…is mobile and that radiation in areas where the Chinle Fm. outcrops is higher than in the surrounding regions (Johnson and Writ, 2009). Recent work has shown that U concentrations increased in soil effluent from the Chinle region when the longer the soils were exposed to wateragain demonstrating the mobility of U in areas where the Chinle Fm.…”

Section: U Concentrations In Waters and U-rich Rocksmentioning

confidence: 98%

“…outcrops may help determine the influence of a mine by assessing how long water from a water source has been in the aquifer (Johnson and Writ, 2009;Campbell and Ingram, 2014). An analysis of the stable isotopes of U in a location where the Chinle Fm.…”

Section: U Concentrations In Waters and Minesmentioning

confidence: 99%

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Uranium in Waters of The Southern Colorado Plateau: Implications for the Navajo Nation

Webster¹,

Credo²,

Ingram³

et al. 2022

Preprint

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Uranium (U) has been observed to be enriched in the waters of the southern Colorado Plateau including waters of the Navajo Nation. The region has naturally occurring U in rocks and a history of mining which may exacerbate U concentrations in waters. Despite past research into the abundance of U in the waters of the Navajo Nation, a regional framework has not been established to understand where U is typically higher and lower. We examined data collected by multiple studies and organizations to establish where and why U is likely to be enriched in waters of the Navajo Nation. Our work shows that U concentrations are related to the presence of U-rich rock bodies, elevation, and the salinity of local aquifers. Additionally, we show that U concentrations in water sources downstream from abandoned U mines are higher than they are in water sources that are not downstream from mines. Our work provides a means for understanding the patterns of U concentration in waters of the Navajo Nation and can act as a guide for local water withdrawal, as well as remediation and mitigation efforts for regional water sources.

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Section: U Concentrations In Waters and Minesmentioning

confidence: 97%

Section: U Concentrations In Waters and U-rich Rocksmentioning

confidence: 98%

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Uranium in Waters of The Southern Colorado Plateau: Implications for the Navajo Nation

Webster¹,

Credo²,

Ingram³

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…In this region, rainwater may infiltrate and percolate through the sediments and rocks of Chinle Fm. into the Coconino-De Chelly aquifer (Johnson and Writ, 2009). Thus, in the south of the Coconino-De Chelly aquifer, the entire Chinle Fm., whose rocks have a median U concentration of 300 ppm., is in hydrological contact with the De Chelly Sandstone (Johnson and Writ, 2009).…”

Section: Geological Settingmentioning

confidence: 99%

“…into the Coconino-De Chelly aquifer (Johnson and Writ, 2009). Thus, in the south of the Coconino-De Chelly aquifer, the entire Chinle Fm., whose rocks have a median U concentration of 300 ppm., is in hydrological contact with the De Chelly Sandstone (Johnson and Writ, 2009). In places where the colorful Chinle Fm.…”

Section: Geological Settingmentioning

confidence: 99%

Uranium in Waters of The Southern Colorado Plateau: Implications for the Navajo Nation

Webster¹,

Locey²,

Pelletier³

et al. 2022

Preprint

View full text Add to dashboard Cite

Uranium (U) is enriched in the waters of the southern Colorado Plateau, including waters of the Navajo Nation. The region has naturally occurring U in rocks and a history of U mining which may increase U concentrations in waters. Despite prior research into the concentration of U in the waters of the Navajo Nation, a framework has not been established to understand the variation of U in the region’s groundwater. To this end, we examined data from six studies to establish where and why U is likely to be enriched in waters of the southern Colorado Plateau. We show that U concentrations are related to the presence of U-rich rock bodies, elevation, and local aquifer salinity. Additionally, we show that U concentrations in waters downstream from abandoned U mines are higher than in waters that are not downstream from mines, and that the area around mines has an elevated U concentration relative to background U concentrations. Our work can act as a guide for local water withdrawal, regional water remediation and mitigation efforts, and provides a means for understanding the geographical patterns of U concentration in waters of the southern Colorado Plateau.

show abstract

Uranium in Waters of The Southern Colorado Plateau: Implications for the Navajo Nation

Webster¹,

Locey²,

Pelletier³

et al. 2023

Preprint

View full text Add to dashboard Cite

Uranium (U) is enriched in the waters of the southern Colorado Plateau, including waters of the Navajo Nation. The region has naturally occurring U in rocks and a history of U mining which may increase U concentrations in waters. Despite prior research into the concentration of U in the waters of the Navajo Nation, a framework has not been established to understand the variation of U in the region’s groundwater. To this end, we examined data from five studies to establish where and why U is likely to be enriched in waters of the southern Colorado Plateau. We show that U concentrations are related to the presence of U-rich rock bodies, surface elevation, and local aquifer salinity. Additionally, we show that the distance to the nearest mine is a significant predictor of U in water sources. Our work can act as a guide for local water withdrawal, regional water remediation and mitigation efforts, and provides a means for understanding the geographical patterns of U concentration in waters of the southern Colorado Plateau.

show abstract

Geochemical Analyses of Rock, Sediment, and Water from the Region In and Around the Tuba City Landfill, Tuba City, Arizona

Cited by 3 publications

References 0 publications

Uranium in Waters of The Southern Colorado Plateau: Implications for the Navajo Nation

Uranium in Waters of The Southern Colorado Plateau: Implications for the Navajo Nation

Uranium in Waters of The Southern Colorado Plateau: Implications for the Navajo Nation

Uranium in Waters of The Southern Colorado Plateau: Implications for the Navajo Nation

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