Borehole characterization of hydraulic properties and groundwater flow in a crystalline fractured aquifer of a headwater mountain watershed, Laramie Range, Wyoming

2018 ◽  
Vol 561 ◽  
pp. 780-795 ◽  
Author(s):  
Shuangpo Ren ◽  
Samuel Gragg ◽  
Ye Zhang ◽  
Bradley J. Carr ◽  
Guangqing Yao
Keyword(s):  
Groundwater Flow ◽  
Hydraulic Properties ◽  
Fractured Aquifer ◽  
Mountain Watershed ◽  
Laramie Range

scholarly journals Characterization of Surface Evidence of Groundwater Flow Systems in Continental Mexico

Water ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 2459
Author(s):  
Alessia Kachadourian-Marras ◽  
Margarita M. Alconada-Magliano ◽  
José Joel Carrillo-Rivera ◽  
Edgar Mendoza ◽  
Felipe Herrerías-Azcue ◽  
...  
Keyword(s):  
Groundwater Flow ◽  
Water Cycle ◽  
Regional Scale ◽  
Ground Surface ◽  
The Public ◽  
Groundwater Flow Systems ◽  
Human Needs ◽  
Flow Systems ◽  
Vegetation And Climate

The dynamics of the underground part of the water cycle greatly influence the features and characteristics of the Earth’s surface. Using Tóth’s theory of groundwater flow systems, surface indicators in Mexico were analyzed to understand the systemic connection between groundwater and the geological framework, relief, soil, water bodies, vegetation, and climate. Recharge and discharge zones of regional groundwater flow systems were identified from evidence on the ground surface. A systematic hydrogeological analysis was made of regional surface indicators, published in official, freely accessible cartographic information at scales of 1:250,000 and 1:1,000,000. From this analysis, six maps of Mexico were generated, titled “Permanent water on the surface”, “Groundwater depth”, “Hydrogeological association of soils”, “Hydrogeological association of vegetation and land use”, “Hydrogeological association of topoforms”, and “Superficial evidence of the presence of groundwater flow systems”. Mexico’s hydrogeological features were produced. The results show that 30% of Mexico is considered to be discharge zones of groundwater flow systems (regional, intermediate, and recharge). Natural recharge processes occur naturally in 57% of the country. This work is the first holistic analysis of groundwater in Mexico carried out at a national–regional scale using only the official information available to the public. These results can be used as the basis for more detailed studies on groundwater and its interaction with the environment, as well as for the development of integrative planning tools to ensure the sustainability of ecosystems and satisfy human needs.

scholarly journals Innovative strategies for high resolution site characterization: application to a flood plain

2014 ◽  
Vol 3 (4) ◽  
Author(s):  
Thomas Vienken ◽  
Manuel Kreck ◽  
Jörg Hausmann ◽  
Ulrike Werban ◽  
Peter Dietrich
Keyword(s):  
Hydraulic Properties ◽  
Test Site ◽  
Flood Plain ◽  
Site Characterization ◽  
Geological Structure ◽  
Small Scale ◽  
Alluvial Deposits ◽  
Innovative Strategies ◽  
Sedimentary Deposits

Solving complex hydrogeological problems often requires a thorough understanding of (hydro-) geological subsurface conditions. This is especially true for sedimentary deposits with complex architecture, where lithology and/or hydraulic properties can significantly vary over short horizontal and vertical distances. At these sites, a traditional, solely sample-based investigation approach is often not applicable due to limited data accuracy, resolution, and efficiency. Instead, an adapted investigation approach is required that combines exploration technologies of different resolution and investigation scales. This paper aims to demonstrate the feasibility of such a multi-scale approach for the characterization of a test site near the city of Löbnitz, Germany, that is comprised of heterogeneous alluvial deposits. Our focus is on site characterization in terms of lithology and hydraulic properties, as well as on the delineation and characterization of an aggradated oxbow as a typical example of a small scale geological structure.

scholarly journals Scale dependence of the hydraulic properties of a fractured aquifer estimated using transfer functions

2016 ◽  
Vol 52 (7) ◽  
pp. 5008-5024 ◽  
Author(s):  
D. Pedretti ◽  
A. Russian ◽  
X. Sanchez-Vila ◽  
M. Dentz
Keyword(s):  
Hydraulic Properties ◽  
Transfer Functions ◽  
Scale Dependence ◽  
Fractured Aquifer

Hydrogeological characterisation of regional faults and dolerite dykes in the Precambrian Basement and Karoo Supergroup (Tete Province, Mozambique)

2019 ◽  
Vol 122 (3) ◽  
pp. 343-356
Author(s):  
R.C. Minnaar ◽  
M.A. Dippenaar
Keyword(s):  
Groundwater Flow ◽  
Hydraulic Properties ◽  
Sequential Process ◽  
High Permeability ◽  
Vibrating Wire ◽  
Aquifer Testing ◽  
Groundwater Occurrence ◽  
Geophysical Surveys ◽  
Piezometric Surface ◽  
Level Monitoring

Abstract Faults and dolerite dykes within Basement- and Karoo-aquifers in northern Mozambique may increase groundwater occurrence but may also be barriers to groundwater flow. Should observation boreholes drilled into regional and local faults as well as dykes show a response to aquifer testing, it would be deduced that these hydrogeological discontinuities are not barriers to groundwater flow. The approach adopted for this study included a sequential process involving data acquisition through a hydrogeological fieldwork programme consisting of geophysical surveys, borehole drilling, aquifer testing, and groundwater level monitoring. The Zambezi Border and geological contact faults were characterised by high variability in hydraulic properties. Aquifer testing resulted in drawdown in observation boreholes as well as a reduction in piezometric surface in the installed vibrating wire piezometers located in different aquifer units, indicating the Zambezi Border- and geological contact-faults were not barriers to groundwater flow. Not all the northwest-southeast trending dykes acted as barriers to groundwater flow, as there were discreet intervals with relatively high permeability present.

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