Download groundwater geophysics in hard rock in pdf or read groundwater geophysics in hard rock in pdf online books in PDF, EPUB and Mobi Format. Click Download or Read Online button to get groundwater geophysics in hard rock in pdf book now. This site is like a library, Use search box in the widget to get ebook that you want.



Groundwater Geophysics In Hard Rock

Author: Prabhat Chandra Chandra
Publisher: CRC Press
ISBN: 0203093674
Size: 32.66 MB
Format: PDF
View: 1393
Download and Read
In hard rock terrain, shallow water wells generally have a poor to moderate yield. Sinking wells deeply to tap yielding fracture zones often backfires, because the borehole may miss the saturated fracture zones at depths. A wrong approach to groundwater exploration in hard rock has therefore often led to unnecessary recurring expenditures and waste of time, something that could have been avoided by a systematic and proper geophysical approach. The combination of various geophysical techniques with environmental conditions is essential to constrain the interpretation and reduce uncertainties in this respect. This book presents the approach to groundwater exploration in hard rocks, various geophysical techniques and combinations to be used, interpretation of data with case studies and drilling results and the preparation of different utility maps.

Groundwater Dynamics In Hard Rock Aquifers

Author: Shakeel Ahmed
Publisher: Springer Science & Business Media
ISBN: 140206540X
Size: 46.75 MB
Format: PDF, ePub, Mobi
View: 4069
Download and Read
This book contains the results and findings of the advanced research carried out in a pilot area with a thorough investigation of the structure and functioning of an aquifer in a granitic formation. It characterizes the hard rock aquifer system and examines its properties and behavior as well as systematically details the geophysical, geological and remote sensing applications to conceptualize such an aquifer system.

Integration Of Geophysical Methods For Groundwater Exploration In Hard Rock Areas

Author: Bereket Mebrahtu Derie
Publisher:
ISBN:
Size: 74.62 MB
Format: PDF, Kindle
View: 7560
Download and Read
The integrated use of Electromagnetic Ground Conductivity, Ground Electrical Resistivity and Seismic Refraction geophysics methods was made in Alia valley, Eritrea for the aim of developing a methodology best suited for ground water exploration in hard rock areas with limited professional and financial resources. A total area of 25 square kilometer was covered with the geophysical surveys. The effective use of information from wells and geological information from outcrops and existing literature helped to create a preliminary conceptual hydrogeologic model that in turn provided a general picture of the research site in terms of its groundwater potential and related factors. The optimum configuration of the geophysical methods and their interpretation was researched by the use of synthetic mathematical models and experimental surveys in areas of known hydrogeological characteristics like lithology and depth of water table. Two approximately parallel electromagnetic ground conductivity profile lines crossed the survey area in approximately north-south direction to assess the variation in the electrical conductivity of the major geological structures. Vertical electrical sounding (VES) surveys were conducted close to existing wells with lithological information and at some selected sites. Survey sites for the two dimensional electrical resistivity imaging and the seismic refraction surveys were selected based on the results from the electromagnetic ground conductivity surveys. The formal geophysical surveys results were correlated with nearby boreholes and with each other. The responses of the different geophysical methods for each lithological layer were recognized. In addition, the location and characteristics of the major geological structures of the area were studies based on the information from the geophysical surveys and other available information. At the end of the research, parts of the research area with better groundwater potential were identified. As a result of the research, an efficient and cost effective geophysical approach was developed for groundwater exploration in hard rock areas of Eritrea and similar places of the world. Recommendations were made on the wider and effective use of the approach with due consideration for the limited financial, human resource and material capacities available for ground water exploration in most countries of Africa and other countries of the world.

Groundwater Geophysics

Author: Reinhard Kirsch
Publisher: Springer Science & Business Media
ISBN: 3540293876
Size: 75.13 MB
Format: PDF, Mobi
View: 342
Download and Read
Geophysical techniques can map the underground conditions apart from boreholes. The use of these methods for hydrogeological applications is demonstrated for mapping of porous and structural aquifers, determination of groundwater quality (mineralization), assessment of hydraulic properties, determination of aquifer vulnerability and mapping of contaminated sites. Additionally, a description of geophysical techniques used for groundwater studies is given including seismics, resistivity methods, magnetics, ground penetrating radar and NMR (nuclear magnetic resonance). In this second edition new chapters on RMT (radio magnetotelluric) and on the determination of groundwater flow in monitoring wells are included.

Groundwater Prospecting And Management

Author: H. P. Patra
Publisher: Springer
ISBN: 9811011486
Size: 71.62 MB
Format: PDF, Docs
View: 644
Download and Read
The book provides an elaborate treatment of groundwater prospecting and management covering remote sensing, geological–geophysical cum hydrogeological studies, exploration (geological and geophysical), development (well logging techniques, pump test, its analysis and applications in well design), contamination (pollution of groundwater) and regulatory legislations regarding groundwater utilization under one cover. The book presents an elucidation of fundamental and theoretical background of each technique supported by necessary illustrative examples and exclusive case studies. It is a text-cum-reference book not only for students, research scholars and practicing earth scientists but also for practicing civil and agricultural engineers working in the application of groundwater resources, engaged in its exploration, development, contamination, legislation and management. The general readers can also refer the book for understanding the groundwater domain for adequate knowledge, as groundwater resources are essential life support commodity which is replenishable but not inexhaustible.