Fluxo das águas subterrâneas em um aquífero carbonático ‘subajustado’ em clima semiárido: aplicação de traçadores ambientais para a Bacia Salt, Novo México (EUA)

Sigstedt, Sophia C.; Phillips, Fred M.; Ritchie, Andre B.

doi:10.1007/s10040-016-1402-2

Cited by 6 publications

(10 citation statements)

References 35 publications

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“…In some simulations such as Run 8, the 1,200-m contour migrated down toward the playas, indicating enhanced filling of the upper aquifer . This seems reasonable given that the present-day water levels within the Salt Basin are quite deep (i.e., underfit; Sigstedt et al, 2016). Sigstedt et al (2016) also noted that stable isotopic composition of Pleistocene-age groundwater within the Salt Basin likely experienced lower evapotranspiration rates.…”

Section: Discussionmentioning

confidence: 86%

Hydrogeology and water resources of the Salt Basin, New Mexico and Texas

Timmons¹,

Sturgis²

2022

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The research team at New Mexico Tech is especially grateful for the support of the U.S. Bureau of Reclamation staff throughout this project, especially Sarah Branum and Dagmar Llewlleyn for their reviews of the draft report. The team at the New Mexico Interstate Stream Commission (ISC) and collaborating consultants from S.S. Papadopulos & Associates (SSPA) were incredible to work with, especially John Longworth at the ISC and Gilbert Barth and Jessica Rodgers at SSPA. Reviews and collaboration by USGS staff, including Jeff Pepin and Andre Ritchie, were also very helpful in improving the details related to the geophysical studies and the modeling sections, respectively.The fieldwork and data collection could not have been accomplished without the cooperation of the many land owners and well owners who granted access to wells for measurement or sampling.

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Section: Discussionmentioning

confidence: 86%

Hydrogeology and water resources of the Salt Basin, New Mexico and Texas

Timmons¹,

Sturgis²

2022

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“…Most water samples were slightly oversaturated with respect to calcite (Figure 9c), which caused a dedolomitization process in the aquifer. This process has been well‐documented in many carbonate systems (Back et al, ; McIntosh & Walter, ; Sigstedt, Phillips, & Ritchie, ). It is noted that the deep groundwater samples exhibited higher SO 4 2+ /Ca 2+ , [HCO 3 ‐ + CO 3 2‐ ]/[Ca 2+ +Mg 2+ ] ratios, larger decreases in dolomite and calcite SIs, and more significant increase in gypsum SI values than those observed in the shallow groundwater (Figure and Figure ); overall, these results reflect the enhanced dedolomitization process.…”

Section: Discussionmentioning

confidence: 99%

“…Most water samples were slightly oversaturated with respect to calcite (Figure 9c), which caused a dedolomitization process in the aquifer. This process has been welldocumented in many carbonate systems (Back et al, 1983;McIntosh & Walter, 2006;Sigstedt, Phillips, & Ritchie, 2016 and calcite SIs, and more significant increase in gypsum SI values than those observed in the shallow groundwater (Figure 8 and Figure 9); overall, these results reflect the enhanced dedolomitization process. Figure 8), suggesting that they were associated with the same flow path and hydrogeochemical processes ( Table 3).…”

Section: -mentioning

confidence: 98%

Using hydrogeochemical data to trace groundwater flow paths in a cold alpine catchment

Wang

et al. 2019

Hydrological Processes

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Significant uncertainty remains in understanding the groundwater flow pathways in the northeastern Qinghai–Tibet Plateau. Hydrogeochemical and isotopic data as well as hydrogeological data were combined to explore the groundwater flow path in a representative cold alpine catchment in the headwater region of the Heihe River. The results indicate that the suprapermafrost groundwater chemical components were mainly affected by calcite dissolution and evaporation, whereas the geochemistry of subpermafrost groundwater was controlled by dolomite and gypsum dissolution, calcite precipitation, and albite and halite dissolution. Distinct hydrogeochemical characteristics and controlling processes suggest a poor hydraulic connectivity between the suprapermafrost and subpermafrost groundwater. The hydraulic connectivity between permafrost groundwater and groundwater in the seasonally frozen area was confirmed by their similar hydrogeochemical features. In the seasonally frozen area, a silty clay layer with low permeability separates the aquifer into the deep (depth >20 m) and shallow (depth <20 m) flow paths. The deep groundwater was characterized by the enhanced dedolomitization and enhanced cation exchange processes compared with the shallow groundwater. Groundwater in the seasonally frozen area finally discharges as base flow into the stream. These results provide useful information about the groundwater flow systems in the unique alpine gorge catchments in Qinghai–Tibet Plateau. The above findings suggest that the permafrost distribution and the aquifer structures within the seasonally frozen area have significant impact on groundwater flow paths. Cross‐validation by drilling work and hydrograph data confirms that the hydrogeochemical and isotopic tracers combined with field investigations can be relatively low‐cost tools in interpreting the groundwater flow paths in similar alpine catchments.

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“…There is almost no other groundwater literature that was found in the references cited in this paper using the terms "flow capacity" or "terrain capacity." Sigstadt et al [6] used the term "underfit aquifer" for an aquifer that is well-below flow capacity, but other terms do not appear in the literature except for summary descriptions, such as "the aquifer is full" or "is at full storage capacity' quote symbol wrong? In a closely related topic, there is abundant literature on fossil spring deposits and fossil wetlands that developed in flow systems that were once at flow capacity [1,[7][8][9][10][11][12][13].…”

Section: Previous Research On Aquifer Flow Capacitymentioning

confidence: 99%

Commentary and Review of Modern Environmental Problems Linked to Historic Flow Capacity in Arid Groundwater Basins

Hibbs

2022

Geosciences

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Environmental problems may develop in groundwater basins when water levels change due to long-term wetter or drier climate or land development. A term related to water-level elevation is flow capacity, which develops in aquifers when the water table is at or very close to land surface. Non-capacity develops in systems where the water table is too deep for capillary water to reach the land surface. Flow capacity is the maximum amount of water that an aquifer can transmit. Sufficient moisture is not available for flow capacity to be established in most aquifers in arid zones and these aquifers are at non-capacity, but many aquifers in today’s deserts were at flow capacity when paleoclimates were cooler and moister during the late Pleistocene. Climate change and anthropogenic activities can cause aquifers to move toward flow capacity but in the last 15,000 years, almost always toward non-capacity. This paper reviews environmental and geotechnical problems associated with the transition of groundwater basins from flow capacity to non-capacity, and vice versa. Five relevant topics are discussed and evaluated: (1) The effects of flow capacity and non-capacity on groundwater basins targeted for waste repositories; (2) The salt contamination of groundwater where flow capacity was present in the Late Pleistocene and is no longer present; (3) Trace element enrichment in salt crusts in playa sediments and environmental risks to groundwater when the flow systems transition from flow capacity to non-capacity; (4) The development and retention of environmental tracers in arid groundwater flow systems at flow capacity that cannot be explained under conditions of non-capacity; and (5) The relationship of flow capacity to fossil hydraulic gradients and non-equilibrium conditions where there is little groundwater extraction. A case example is provided with each of these topics to demonstrate relevance and to provide an understanding of topics as they relate to land management.

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Fluxo das águas subterrâneas em um aquífero carbonático ‘subajustado’ em clima semiárido: aplicação de traçadores ambientais para a Bacia Salt, Novo México (EUA)

Cited by 6 publications

References 35 publications

Hydrogeology and water resources of the Salt Basin, New Mexico and Texas

Hydrogeology and water resources of the Salt Basin, New Mexico and Texas

Using hydrogeochemical data to trace groundwater flow paths in a cold alpine catchment

Commentary and Review of Modern Environmental Problems Linked to Historic Flow Capacity in Arid Groundwater Basins

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