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  3. U-series and Sr-isotope data release supporting Tufa and Water Radiogenic Geochemistry and Tufa Ages for Two Karst Aquifers in the Buffalo National River Region, Northern Arkansas

U-series and Sr-isotope data release supporting Tufa and Water Radiogenic Geochemistry and Tufa Ages for Two Karst Aquifers in the Buffalo National River Region, Northern Arkansas

Extended abstract for 2017 USGS Karst Interest Group Meeting

Dates

Publication Date
Time Period
2014
Time Period
2017

Citation

Paces, J.B., 2019, U-series and Sr-isotope data release supporting Tufa and Water Radiogenic Geochemistry and Tufa Ages for Two Karst Aquifers in the Buffalo National River Region, Northern Arkansas: U.S. Geological Survey data release, https://doi.org/10.5066/P9L1J7BG.

Summary

This dataset includes tables of U- and Th-isotopic data used to calculate uranium-series age estimates (230Th/U method) and initial 234U/238U activity ratios for samples of tufa mounds formed by groundwater seepage. In addition, data include 87Sr/86Sr and 234U/238U values determined for spring discharge and streamflow collected from sites in the vicinity of Buffalo National River.

Contacts

Point of Contact :
James B Paces
Originator :
James B Paces
Metadata Contact :
James B Paces, U.S. Geological Survey
Publisher :
U.S. Geological Survey
Distributor :
U.S. Geological Survey - ScienceBase
SDC Data Owner :
Geosciences and Environmental Change Science Center
USGS Mission Area :
Core Science Systems

Attached Files

Click on title to download individual files attached to this item.

U-series_and_Sr-isotope_data_supporting_Tufa_and_Water_Radiogenic_Geochemistry_and_Tufa_Ages_Buffalo_National_River_FINAL.xml
“MetaData file”
Original FGDC Metadata
View 		22.05 KB application/fgdc+xml
BNR_Tufa_UTh_Sr_data.csv
“Sr- and U-series-isotopes for tufa samples” 		6.16 KB text/csv
BNR_HOH-WR_UTh_Sr_data.csv
“Sr & U isotopes for water & whole rock samples” 		2.54 KB text/csv
BNR_Water_and_Tufa_data_dictionary.csv
“Data Dictionary” 		6.09 KB text/csv

Purpose

U- and Th-isotopic data were used to calculate uranium-series age estimates (230Th/U method) and initial 234U/238U activity ratios for a tufa mounds that are related to evolution of landscapes in the Buffalo National River. In addition, Sr- and U-isotopic groundwater and streamflow were used evaluate potential aquifer sources for tufas. These datasets support interpretations presented in a paper titled "Tufa and Water Radiogenic Geochemistry and Tufa Ages for Two Karst Aquifers in the Buffalo National River Region, Northern Arkansas" by Hudson et al., published as a contribution to USGS SIR 2017-5023 (https://doi.org/10.3133/sir20175023).

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Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P9L1J7BG

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