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Hydrogeology Division

Carrying out short-term and long term pumping tests and determination of safe pumping rates of water sources Library and WRB website come under the hydrogeology division research activities for exploration and exploitation of available groundwater resources in the limestone and hard rock aquifers Get price

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Fundamental Concept of Indication Layer in Coal Floor

Whether the confined aquifer is located above or below the key strata if the key strata don't be broken after exploitation the key strata can act on water-resisting The model of water-resisting key strata has following three meaning lithologic water-resisting with weak rock layer structure water-resisting with hard rock layer and water-Get price

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Development of a sampling protocol for radioactive

This work outlines the methodology employed in order to develop a sampling protocol for radioactive elements in fractured rock aquifers This has included the analysis of previously developed sampling protocols historical data as well as the field application of a draft protocol to the area around Beaufort West in South Africa Get price

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Hydro

Hydro-geological and geochemical characterisation for determination of thresholds values in groundwater - Typology of aquifers Hlne Pauwels Jan Hookey Wolfram Kloppmann Ralf Kunkel Hard-rock Crystalline basement group Schists Volcanic rocks Evaporites -Application of environmental Get price

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Groundwater Prospecting and Exploration in a Low Potential

Groundwater Prospecting and Exploration in a Low Potential Hard Rock Aquifer Case Study from Ogbomoso North South-western Nigeria Oladunjoye Michael 1 Adabanija Moruffdeen 2* Adeboye Oni 1 1Department of Geology University of Ibadan Ibadan Nigeria 2Department of Earth Science Ladoke Akintola University of Technology Ogbomoso NigeriaGet price

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Groundwater Development In A Mixed Geological Terrain

Groundwater occurs in the area in three broad categories fractured/weathered aquifers in hard rock terrain sandstone/grit aquifer in the sedimentary rock terrain and sandstone/conglomerate/ fractured rock in geologic contact areas Groundwater yield varies widely in the three categories Get price

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BGS groundwater resilience case study

crystalline rock aquifer systems to climate change The sustainability of such abstractions was supplies likely exists elsewhere in hard-rock environments with similarly favourable management and determination of "sustainable yield" The benchmark dataset at Makutapora highlights nevertheless the importance of long-term monitoring Get price

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THE ECOLOGICAL IMPACTS OF LARGE SCALE ABSTRACTION

Secondary aquifer (a k a as fractured-rock aquifer) - Aquifers in which the water moves through spaces that were formed after the geological formation was formed such as fractures in hard rock Semi-confined aquife (a k a leaky aquifer) - An aquifer that is physically located between two aquitardes and where the piezometric water level is above the upper boundary of the aquifer Get price

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Hydrogeological Characteristics of Shallow Hard Rock

The weathered mantle of migmatitics of the Pan-African series of Yaounde presents the characteristics of a hard rock aquifer in a humid tropical environment A perched aquifer is identified overlying the alterite aquifer and a hydraulic conductivity decreasing with the depth of the soil Get price

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Applications

Environment Studies With the increase in demand for the redevelopment of brown field sites the determination and location of subsurface features is of considerable importance Microgravity can and has been applied in the detection of such features (usually combined with other geophysical methods) Hard Rock Mining Get price

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Available online a t

comprises 4 groups viz (1) Crystalline aquifer system (2) Cuddapah aquifer system (3) Gondwana aquifers and Alluvial and laterite aquifer system In general ground water occurs in all the formations of the area However its potential depends on the nature and environment in which they occur Get price

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IDENTIFYING SOURCES AND MECHANISM OF

However despite the fact that the studied area have fractured hard rock aquifer system (with a complex geologic environment comprising unsaturated rock matrix and multiple fracture network) as its immediate neighboring aquifer the study has identified dominant recharge processes and flow mechanisms operative in the area Get price

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Mapping Aquifer Bifurcation Through Integrated Geophysical

Mapping Aquifer Bifurcation Through Integrated Geophysical and Tracer Studies in a Granite Terrain By Rolland Andrade Abstract- Identification of groundwater aquifer in hard rock using conventional surface geophysical investigation techniques is intricate in nature Numerous attempts have been madeGet price

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Identification of Groundwater in Hard Rock Terrain Using

the study area is hard rock terrain and 30% comes under potential aquifer zone The results also show that both the areas were characterized by Horst How to cite this paper Sk M Ramanu-jam N Champoil V Biswas S K Rasool Q A and Ojha C (2018) Identification of Groundwater in Hard Rock Terrain UsingGet price

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Hydro

Hydro-geological and geochemical characterisation for determination of thresholds values in groundwater - Typology of aquifers Hlne Pauwels Jan Hookey Wolfram Kloppmann Ralf Kunkel Hard-rock Crystalline basement group Schists Volcanic rocks Evaporites -Application of environmental Get price

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Geophysical Investigation of Subsurface Water of Erunmu

The great variability and the unpredictability of the nature of basement aquifers (Olayinka 1992) make such three-dimensional view highly important in evaluating groundwater potential of the basement complex and developing sustainable water supply program A band of relatively thick overburden zone extending from southern part of the area to a point towards the north are easily identifiable Get price

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CORE

(1) The weathered layer (alterites) is often considered as a porous medium and is the only part frequently used in hard-rock aquifers Recent apparent ages (010 a) are observed in the groundwater fluctuation zone in a thin layer which is from 12 m-thick in the lower parts and 1015 m-thick in Get price

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Hydrogeophysical Parameters Estimation for Aquifer

Hydrogeophysical Parameters Estimation for Aquifer Characterisation in Hard Rock Environment A Case Study from Yaounde Cameroon William Assats Teikeu 1 Philippe Nouck Njandjock 1* Dieudonn Bisso 2 Quentin Yene Atangana 2 Jean-Paul Sep Nlomgan 3 1 Department of Physics Faculty of Science University of Yaounde I Yaounde Get price

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GROUND WATER

Water quality within aquifers varies depending on • If the water is from a sand or rock aquifer and • The level of impact from neighbouring land uses such as agriculture industry housing estates etc Fine sand aquifers generally have poorer water quality where as sandy coastal aquifers Get price

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Applicability of Hydro

Applicability of Hydro-Geophysical Parameter Estimation in a Basement Complex Environment Case Study of the University of Ibadan Campus Southwestern Nigeria M O M O Nyadawa V S Singh and D Ratnakar 2011 Hydrogeophysical parameter estimation for aquifer characterisation in hard rock environments A case study from Jangaon sub Get price

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Hydraulic Properties Aquifer Testing 101

Aquifer tests (pumping tests slug tests and constant-head tests) are performed to estimate site-specific values for the hydraulic properties of aquifers and aquitards Under certain circumstances however site-specific hydraulic property data may not be available when needed For example reconnaissance studies or scoping calculations may require hydraulic property values before on-site Get price

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Determination of Groundwater Potential of the Tsumeb

22/04/2013The scope of exploration drilling and comprehensive hydraulic testing in the project area was determined and tendering and supervision of the works were conducted in order to assess the long-term sustainable groundwater potential of a terrain of 10 000 km with complicated hard-rock and porous aquifer-systems Get price

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IDENTIFYING SOURCES AND MECHANISM OF

However despite the fact that the studied area have fractured hard rock aquifer system (with a complex geologic environment comprising unsaturated rock matrix and multiple fracture network) as its immediate neighboring aquifer the study has identified dominant recharge processes and flow mechanisms operative in the area Get price

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Geophysical Characterization of Hard Rock Aquifers

Abstract Geophysics plays a major role for characterizing the hard rocks for groundwater studies The qualitative and quantitative application has increased since past few years due to rapid development and advancement in microprocessors and associated numerical modelling solutions Get price

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Selected Hydrogeologic Problems of the Bohemian Massif

Buy Selected Hydrogeologic Problems of the Bohemian Massif and of other Hard Rock Terrains in Europe 1 by Steffen Bender Till K Rubbert Stefan Wohnlich Paula Jskelinen Lasse Ahonen Antnio Chambel (ISBN 9788322929124) from Amazon's Book Store Everyday low Get price

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Exploitation of High‐Yields in Hard‐Rock Aquifers

01/07/2001Read Exploitation of High‐Yields in Hard‐Rock Aquifers Downscaling Methodology Combining GIS and Multicriteria Analysis to Delineate Field Prospecting Zones Ground Water on DeepDyve the largest online rental service for scholarly research with thousands of academic publications available at your fingertips Get price

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Groundwater Development in Hard Rocks

GROUNDWATER – Vol II – Groundwater Development in Hard Rocks - Shrikant Daji Limaye Encyclopedia of Life Support Systems (EOLSS) recharge or replenishment benefit/cost ratio of the proposed use and environmental impacts of the proposed use Hard rock aquifers for the purpose of this article mean the noncarbonate fractured rockGet price

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Geophysical investigations for groundwater in a hard rock

23/11/2013Abstract The main aim of a geophysical investigation in a hard rock region is to solve different hydrogeological problems like depth of water table basement rock thickness of weathered zone/formation structural and stratigraphic conditions relevant to groundwater conditions and permeability of aquifers Get price

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Determination of Groundwater Potential of the Tsumeb

22/04/2013The scope of exploration drilling and comprehensive hydraulic testing in the project area was determined and tendering and supervision of the works were conducted in order to assess the long-term sustainable groundwater potential of a terrain of 10 000 km with complicated hard-rock and porous aquifer-systems Get price

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Hydro

Hydro-geological and geochemical characterisation for determination of thresholds values in groundwater - Typology of aquifers Hlne Pauwels Jan Hookey Wolfram Kloppmann Ralf Kunkel Hard-rock Crystalline basement group Schists Volcanic rocks Evaporites -Application of environmental Get price

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1 1 4 1 Groundwater systems

This aquifer contains mineral sands and has been investigated for its mineral deposits as well as being a source of water (Coffey and Sinclair Knight Mertz 1996 SML 1971) Fractured rock aquifers There is a series of aquifers hosted by fractured rock formations including the Liverpool Range Volcanics Jurassic Narrabeen and Permian group Get price

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Hydrogeophysical Parameters Estimation for Aquifer

Hydrogeophysical Parameters Estimation for Aquifer Characterisation in Hard Rock Environment A Case Study from Yaounde Cameroon DOI 10 4236/jwarp 2012 411110 PP 944-953 William Assats Teikeu Philippe Nouck Njandjock Dieudonn Bisso Quentin Yene Atangana Jean-Paul Sep NlomganGet price

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