Download or read book Use of Advanced Borehole Geophysical Techniques to Delineate Fractured rock Ground water Flow and Fractures Along Water tunnel Facilities in Northern Queens County New York written by and published by . This book was released on 2001 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Use of Advanced Borehole Geophysical Techniques to Delineate Fractured rock Ground water Flow and Fractures Along Water tunnel Facilities in Northern Queens County New York written by and published by . This book was released on 2001 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Use of Advanced Borehole Geophysical Techniques to Delineate Fractured rock Ground water Flow and Fractures Along Water tunnel Facilities in Northern Queens County New York written by and published by . This book was released on 2001 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Use of Advanced Borehole Geophysical Techniques to Delineate Fractured rock Ground water Flow Faults Foliation and Fractures Along the Western Part of Manhattan New York written by Frederick Stumm and published by . This book was released on 2001 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Water resources Investigations Report written by and published by . This book was released on 2001 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Delineation of Faults Fractures Foliation and Ground water flow Zones in Fractured rock on the Southern Part of Manhattan New York Through Use of Advanced Borehole geophysical Techniques written by Frederick Stumm and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Application of Borehole Geophysics in the Characterization of Flow in Fractured Rocks written by F. L. Paillet and published by . This book was released on 1994 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Delineation of the Fractured rock and Unconsolidated Overburden Ground water Flow Systems on the Southern Part of Manhattan New York Through Use of Advanced Borehole geophysical Techniques written by Frederick Stumm and published by . This book was released on 2005 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Use of Airborne Surface and Borehole Geophysical Techniques at Contaminated Sites written by and published by . This book was released on 1993 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the U S Geological Survey Workshop on the Application of Borehole Geophysics to Ground Water Investigations written by and published by . This book was released on 1994 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Use of Surface Geophysical Techniques to Detect Fractures in Bedrock written by Mark R. Lewis and published by . This book was released on 1987 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: See journals under US Geological survey. Circular 987.
Download or read book A Practical Guide to Borehole Geophysics in Environmental Investigations written by W. Scott Keys and published by Routledge. This book was released on 2017-12-06 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: Borehole geophysics is frequently applied in hydrogeological environmental investigations where, for example, sites must be evaluated to determine the distribution of contaminants. It is a cost-effective method for obtaining information during several phases of such investigations. Written by one of world's leading experts in the field, A Practical Guide to Borehole Geophysics in Environmental Investigations explains the basic principles of the many tools and techniques used in borehole logging projects. Applications are presented in terms of broad project objectives, providing a hands-on guide to geophysical logging programs, including specific examples of how to obtain and interpret data that meet particular hydrogeologic objectives.
Download or read book Use of Surface and Borehole Geophysical Surveys to Determine Fracture Orientation and Other Site Characteristics in Crystalline Bedrock Terrain Millville and Uxbridge Massachusetts written by Bruce P. Hansen and published by . This book was released on 1995 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: ... Describes results of seismic and resistivity surface geophysical surveys that were conducted at 3 sites and borehole radar surveys conducted in 3 wells; directions of fracturing at each site are described; report also includes description of surface radar surveys, and geophysical surveys ...
Download or read book Borehole Geophysics Applied to Ground water Hydrology written by W. S. Keys and published by . This book was released on 1988 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Rock Borehole Packer System for Identifying Hydraulically Active Fractures Under Natural Gradient Flow written by Ryan Kroeker and published by . This book was released on 2008 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt: To improve capabilities for understanding and predicting contaminant migration in fractured rock there is need for better field methods to identify the fractures that have active groundwater flow. Current methods have limitations, for example, borehole geophysical imaging, such as acoustic and optical televiewing, identifies fractures appearing on borehole walls but cannot sense groundwater flow. Borehole hydraulic tests determine the transmissivity of fractured zones under conditions altered by the presence of the borehole and its testing and not under natural flow conditions. The natural flow conditions are important because they govern contaminant transport in the whole flow system. Furthermore, conventional tracer tests are used to identify flow in fractures, but these too are typically done under imposed rather than ambient (natural) hydraulic conditions. High resolution fluid temperature logging in lined boreholes can identify some of the hydraulically active fractures, but this method lacks the sensitivity needed to indicate ambient flow in each individual fracture. This thesis presents a new method aimed at determining whether or not any particular fracture targeted for borehole measurement has substantial ambient flow. This method involves a device lowered into an open hole to a target zone where a packer is inflated. This packer has a water-flow-sensitive dyed cotton fabric wrapped around its exterior so that when the packer is inflated, it not only seals the borehole but presses the cotton fabric against the borehole wall. This set-up causes the exact location of hydraulically active fractures at the borehole wall to show up as imprints marked on the fabric. When viewed under black light, individual fracture markings can be seen, and the distribution of the hydraulically active fractures is identified.
Download or read book Cross borehole Fracture Mapping Using Electromagnetic Geotomography written by and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Lawrence Livermore National Laboratory is evaluating high resolution geophysical techniques for characterization of nuclear waste repository sites. This report presents the results of the first phase of this project. We describe the evaluation of a new geophysical technique used to map fractures remotely between boreholes: electromagnetic geotomography used in conjunction with water tracers. Salt water is forced into the fractured rock mass, attenuating the high frequency electromagnetic waves used for probing. The locations in the rock where the salt water has induced signal losses are then mapped by geotomography. An experiment using this technique has been performed near Oracle, Arizona, in a granitic rock mass. The data obtained were reduced to gray level images, which show the calculated signal transmission properties of the rock mass. We analyzed these images and compared them with borehole geophysical data: neutron logs, acoustic velocity logs, caliper logs, and acoustic televiewer logs. Comparisons between the images and the borehole geophysical data suggest that geotomography has merit when used to map fracture in granite. Image anomalies, which can be indicative of fracturing along the borehole walls, usually coincide with geophysical log anomalies. Under the conditions of the Oracle experiment, available data indicate that clusters of fracture zones were detected. Single fractures were not detected. The thickness of the smallest recognizable fractured zone was 0.6 m (2 ft).
Download or read book Use of Borehole and Surface Geophysics to Investigate Ground water Quality Near a Road deicing Salt storage Facility Valparaiso Indiana written by Martin R. Risch and published by . This book was released on 2001 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt:
