Radon, uranium, strontium and other compositional analytical data documenting groundwater contributions along a mountain headwater catchment in Hyalite Canyon, MT, USA (2016-2018)


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Created: Aug 05, 2020 at 11:02 p.m.
Last updated: Aug 18, 2021 at 9:10 p.m.
DOI: 10.4211/hs.46a2ec0b25ba406bbf8571d9dd56d2d5
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Abstract

This resource provides radon, uranium and strontium isotope data, along with select compositional data, for water samples collected in Hyalite Canyon, Montana. Computations in support of mixing models and monte carlo optimization are included, documenting groundwater contributions to streamflow.

Sampling sites were selected to represent potential contributions from rock units with distinct geochemical character. Sampling sites included surface waters in Hyalite Creek and five tributaries, a spring and associated spring channel in the bank of Hyalite Creek, a well and associated cistern in neighboring Hodgman Canyon, and a well in the uppermost alluvial fan formed by Hyalite Creek at the mountain front. Surface waters were sampled in February and August 2016-2018, when baseflow conditions were presumed to dominate stream flow generation based on hydrograph levels. Surface water samples were collected using a peristaltic pump (Geotech™ Denver, CO, United States) with platinum-cured Silicon tubing. Wells were sampled by purging three well volumes prior to water collection, employing the same filtration and field measures used at surface water sampling sites. Samples were filtered at the time of sampling using a 0.45 µm, mid-capacity capsule filter (Geotech™ Denver, CO, United States). In-situ temperature, pH, specific electrical conductivity (SC), and dissolved oxygen (DO) were measured at each sampling site using a handheld multimeter (YSI 556 Yellow Springs, OH, USA). Alkalinity was measured in the field using colorimetric titration (Hach™ kit; phenolphthalein/bromethymol blue and H2SO4).

Chemical and isotopic analyses were conducted at Montana State University (MSU) in Bozeman, MT, the Montana Bureau of Mines and Geology (MBMG) in Butte, MT, and the USGS Southwest Isotope Research Laboratory (SWIRL) in Denver, CO. Major cations and trace metal concentrations were analyzed by Inductively Coupled Plasma - Optical Emission Spectroscopy (ICP-OES; Perkin Elmer™ Waltham, MA, United States) at MBMG and the MSU Environmental Analytical Laboratory, and by inductively coupled plasma mass spectrometry (ICP-MS) at MBMG. U and Sr isotopic analysis followed procedures described in Ewing et. al. (2015) and Paces & Wurster (2014). Purified U aliquots were analyzed by TIMS using the USGS SWIRL ThermoFinnigan Triton™ equipped with a single secondary electron multiplier and a retarding potential quadrapole (RPQ) electrostatic filter. Purified Sr aliquots were analyzed at the USGS SWIRL by multicollector TIMS using either a ThermoFinnigan Triton™ or an Isotopx Phoenix™. Samples for radon isotope analysis were collected as described in Gardner et al. (2011) and analyzed at the University of Montana using scintillation counting.

We interpreted patterns in stream flow generation from groundwater aquifers along Hyalite Creek first by examining the longitudinal patterns in chemical and isotope characterizations with decreasing elevation and distance downstream. Longitudinal analysis allowed consideration of how geologic structures, geomorphology, and lithology influence the character of stream flow generation and surface-subsurface water interaction (Gardner et al., 2011). This sampling strategy allowed us to construct mixing models that quantify fractional inputs of groundwater to reaches of Hyalite Creek where geochemical data indicated notable influence of a given aquifer. These mixing models were tested and visualized using the analytical code provided with this resource.

Subject Keywords

Resource Level Coverage

Spatial

Coordinate System/Geographic Projection:
WGS 84 EPSG:4326
Coordinate Units:
Decimal degrees
Place/Area Name:
Hyalite Canyon, MT
North Latitude
45.6135°
East Longitude
-110.9308°
South Latitude
45.4490°
West Longitude
-111.0839°

Content

Readme.txt

Data, code and supplementary figures documenting groundwater contributions along a mountain headwater catchment (Hyalite Canyon, MT)

Citation
Ewing, S., F. R. Miller, R. Payn, J. B. Paces (2020). Data, code and supplementary figures documenting groundwater contributions along a mountain headwater catchment (Hyalite Canyon, MT), HydroShare, https://doi.org/10.4211/hs.46a2ec0b25ba406bbf8571d9dd56d2d5.
	
The content of this resource serves as the data and analytical code for:
Miller, F R, Ewing, S A, Payn, R A, Paces, J B, Leuthold, S L, Custer, S. (in press November 2020) Sr and U Isotopes Reveal the Influence of Lithologic Structure on Groundwater Contributions Along a Mountain Headwater Catchment (Hyalite Canyon, MT). Journal of Hydrology

Summary
Supplemental text, figures and full dataset documenting geochemical differences among surface waters, springs, and groundwaters in 2016-2018. 

Software
Analyses were performed using R version 3.5.0, as described in Miller et al.

Description of Contents
The file titled 180619_HY_Figs contains U, Sr, Ca, and associated data for all water samples collected for this work during 2016-2018 in Hyalite Canyon, Montana. 

The file titled 180328_HY_RadonValues contains the 222Rn activities measured at select Hyalite Creek main stem and tributary sites in March 2018. 

The file titled 180305_GRW_Mixing.csv contains the endmember and mixture values for U and Sr concentrations and isotope values.

The file titled MillerFetal_SupplementalMaterial_20201107 contains a table of endmembers used in the monte carlo analysis described in Miller et al., the R code for monte carlo realizations and maximum likelihood optimization, and probability density plots of fractional contributions to Hyalite Creek derived from this analysis.

Licenses
The data in this resource are licensed under the Creative Commons Attribution CC-BY 4.0 license.See here for the full legal text: 
https://creativecommons.org/licenses/by/4.0/legalcode

The analytical code in this resource is licensed under the MIT license found in the LICENSE_code.txt file in the root directory of this resource.  


Contact
Stephanie Ewing: stephanie.ewing@montana.edu

Related Resources

This resource is referenced by Miller, F R, Ewing, Payn, R A, S A, Paces, J B, Leuthold, S L, Custer, S. (in press 2020) Sr and U Isotopes Reveal the Influence of Lithologic Structure on Groundwater Contributions Along a Mountain Headwater Catchment (Hyalite Canyon, MT). Journal of Hydrology.

Credits

Funding Agencies

This resource was created using funding from the following sources:
Agency Name Award Title Award Number
United States Geologic Survey National Institute of Water Resources Competitive Grants Program G16AP00193
Montana Agricultural Experiment Station MONB00389, MONB00349
National Science Foundation EPSCoR Track 1, Consortium for Research on Environmental Water Systems Cooperative Agreement OIA-1757351

Contributors

People or Organizations that contributed technically, materially, financially, or provided general support for the creation of the resource's content but are not considered authors.

Name Organization Address Phone Author Identifiers
Rob Striegl USGS
Payton Gardner University of Montana
Venice Bayrd Montana State University;Montana EPSCoR

How to Cite

Ewing, S., F. R. Miller, R. Payn, J. B. Paces, S. Leuthold, S. G. Custer (2021). Radon, uranium, strontium and other compositional analytical data documenting groundwater contributions along a mountain headwater catchment in Hyalite Canyon, MT, USA (2016-2018), HydroShare, https://doi.org/10.4211/hs.46a2ec0b25ba406bbf8571d9dd56d2d5

The data in this resource are licensed under the Creative Commons Attribution CC-BY 4.0 license. See here for the full legal text:
https://creativecommons.org/licenses/by/4.0/legalcode

The analytical code in this resource is licensed under the MIT license found in the LICENSE_code.txt file in the root directory of this resource.

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