Development of a local meteoric water line for southeastern Idaho, western Wyoming, and south-central Montana

Benjamin, Lyn; Knobel, LeRoy L.; Hall, L.F.; Cecil, L. DeWayne; Green, Jaromy R.

doi:10.3133/sir20045126

Cited by 22 publications

(24 citation statements)

References 19 publications

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“…The groundwater becomes progressively more reduced along the flow path. The dD and d 18 O compositions of the springs in the Soda Springs basalt aquifer define a linear array which overlaps the Local Meteoric Water Line defined for the wider region (LMWL; for south-eastern Idaho, western Wyoming and south-central Montana from Benjamin et al, 2004;Fig. 5).…”

Section: Flow Path Chemistrymentioning

confidence: 99%

Kinetics of CO2–fluid–rock reactions in a basalt aquifer, Soda Springs, Idaho

Maskell

Kampman

Chapman

et al. 2015

Applied Geochemistry

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a b s t r a c tThe dissolution of silicate minerals by CO 2 -rich fluids and the subsequent precipitation of CO 2 as carbonate minerals represent a means of permanently storing anthropogenic CO 2 waste products in a solid and secure form. Modelling the progression of these reactions is hindered by our poor understanding of the rates of mineral dissolution-precipitation reactions and mineral surface properties in natural systems. This study evaluates the chemical evolution of groundwater flowing through a basalt aquifer, which forms part of the leaking CO 2 -charged system of the Blackfoot Volcanic Field in south-eastern Idaho, USA. Reaction progress is modelled using changes in groundwater chemistry by inverse mass balance techniques. The CO 2 -promoted fluid-mineral reactions include the dissolution of primary plagioclase, orthoclase, pyroxene and gypsum which is balanced by the precipitation of secondary albite, calcite, zeolite, kaolinite and silica. Mineral mole transfers and groundwater flow rates estimated from hydraulic head data are used to determine the kinetics of plagioclase and orthoclase feldspar dissolution. Plagioclase surface area measurements were determined using the evolution of the U-series isotope ratios in the groundwater and are compared to published surface area measurements. Calculated rates of dissolution for plagioclase range from 2.4 Â 10 À12 to 4.6 Â 10 À16 mol/m 2 /s and orthoclase from 2.0 Â 10 À13 to 6.8 Â 10 À16 mol/m 2 /s respectively. These feldspar reaction rates, correlate with the degree of mineral-fluid disequilibrium and are similar to the dissolution rates for these mineral measured in other natural CO 2 -charged groundwater systems.

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Section: Flow Path Chemistrymentioning

confidence: 99%

Kinetics of CO2–fluid–rock reactions in a basalt aquifer, Soda Springs, Idaho

Maskell

Kampman

Chapman

et al. 2015

Applied Geochemistry

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“…The winter season data are clustered around −10.1‰ without much spread not allowing one to obtain a good measure of the slope. Following standard interpretation of δD − δ 18 O slope (Benjamin, Knobel, Hall, Cecil, & Green, ; Criss, ), it is likely that evaporation in the catchment area and in streams during hot and dry spring season (see temperature in Figure ) results in lower slope value. During the SW monsoon season, dominated by contribution from rains, the slope is close to the global meteoric water line (GMWL with slope of 8.1).…”

Section: Resultsmentioning

confidence: 86%

Seasonal variation in stable isotope compositions of waters from a Himalayan river: Estimation of glacier melt contribution

Laskar

Bhattacharya

Rao

et al. 2018

Hydrological Processes

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Stable isotopic compositions (δ18O and δD) in water samples collected from Parbati River in Himachal Pradesh, India, during 2002–2005 were measured to delineate the contributions from different sources in different seasons. A seasonal cycle with high δ18O and δD values (in ‰) during the spring (March to May; −9.2, −58.6), intermediate values during the winter (December to February; −10.1, −65.6), and low values during the south‐west monsoon (July to September; −10.9, −71.8) is observed. The d‐excess values (15.2 ± 2.1‰) are higher compared with the global meteoric waters indicating significant contribution (~26%) of moisture carried by western disturbances. Higher δ‐values during the spring are ascribed to enhanced contribution from snow melt. The lower δ‐values during the monsoon are due to various Rayleigh effects (altitude, continental, and amount effects) and large‐scale convection effect on rains. A three component‐mixing model using the isotopic data and some plausible end member isotopic values was applied to identify contributions to the river discharge from different sources such as groundwater or subsurface base flow, glacier/surface snow melt, and the monsoon rain. Meltwater from glacier and snow combines with the base flow in spring season. South‐west monsoon rain and glacier melt along with the base flow constitute the monsoon discharge. The post‐monsoon season and winter are dominated by groundwater contribution. About 80% of the discharge is contributed by glacier melts in spring season. In the rainy monsoon season, glacier/snow melt contributes ~41% of the discharge. The mean annual glacier melt contribution to the river water is estimated to be 44 ± 15%. The present estimate along with some previous studies suggest that glacier contribution to the river discharge increased from ~35% to 50% during the period 1990 to 2011. This is consistent with recent data on glacier retreats in the Himalayan region.

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“…July–November) (Figure 2c). In dual isotope space (δD vs δ 18 O), the 2007 data fell on the local meteoric water line (LMWL) (Benjamin et al , 2004), but the 2008 data were more enriched in deuterium relative to 18 O (Figure 3). The deuterium‐excess value (d‐excess = δD − 8·01 × δ 18 O, where 8·01 is the slope from the LMWL) and slope of the relationship between δD and δ 18 O of stream water provide information on the degree to which evaporative enrichment has occurred (e.g.…”

Section: Resultsmentioning

confidence: 98%

“… The dual isotope plot of δD vs δ 18 O for 2007 and 2008 in comparison to the local meteoric water line for Wyoming (Benjamin et al , 2004). The data for 2007 fall directly on the LMWL, so the lines for each overlap …”

Section: Resultsmentioning

confidence: 99%

“…The stable isotope ratios of heavy to light hydrogen (expressed as δ 2 H or δD) and oxygen (expressed as δ 18 O) in water have been used successfully as naturally occurring hydrologic tracers to constrain estimates of the contributions of different water sources to streamflow, including snowmelt, glacier meltwater, and groundwater baseflow (Dincer et al , 1970; Behrens et al , 1971; Martinec et al , 1974; Behrens et al , 1978; Rodhe, 1981; Hooper and Shoemaker, 1986; Obradovic and Sklash, 1986; Maule and Stein, 1990;) . Although a number of hydrological investigations have employed isotopic tracers (Coplen and Kendall, 2000; Schuster et al , 2000; Frost et al , 2002; Naftz et al , 2002; Benjamin et al , 2004; Frost and Toner, 2004), the use of isotopes to identify contributions of rain, snowmelt, groundwater baseflow, and glacier meltwater to streamflow in alpine catchments has received little attention. Quantifying the contributions of these sources to streamflow is challenging because existing isotopic mixing model approaches are generally limited in the number of water sources they can accommodate, based on the number of isotopic tracers used (Phillips and Gregg, 2003).…”

Section: Introductionmentioning

confidence: 99%

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Catalytic Three‐Component Domino Reaction for the Preparation of Trisubstituted Oxazoles

Wachenfeldt

Röse

Paulsen

et al. 2013

Chemistry A European J

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Multicomponent reactions are attractive for assembling functionalized heterocyclic compounds. To this end, an efficient gold-catalyzed three-component domino reaction to form oxazoles directly from imines, alkynes, and acid chlorides is presented. The reaction proceeds in a single synthetic step by using a gold(III)-N,N'-ethylenebis(salicylimine) (salen) catalyst to give trisubstituted oxazoles in up to 96 % yield. The substrate scope, a mechanistic study exploring the role of the gold catalyst, and the synthetic applications of the oxazole products are discussed.

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Development of a local meteoric water line for southeastern Idaho, western Wyoming, and south-central Montana

Cited by 22 publications

References 19 publications

Kinetics of CO2–fluid–rock reactions in a basalt aquifer, Soda Springs, Idaho

Kinetics of CO2–fluid–rock reactions in a basalt aquifer, Soda Springs, Idaho

Seasonal variation in stable isotope compositions of waters from a Himalayan river: Estimation of glacier melt contribution

Catalytic Three‐Component Domino Reaction for the Preparation of Trisubstituted Oxazoles

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