... Cuchilla, Honduras, they asked Living Water Honduras to conduct a geophysical survey of the area to locate a confined aquifer and to drill the well. An aquifer was located, drilled and is now providing the clean water for the sanitation facility and for other needs of the community. Using DC resistivity...

..., and DC resistivity methods. Surveys were primarily performed: (1) above the primary El Zarzal landslide; (2) perpendicular to the Majes-Siguas cliff where significant water seepage is observed; and (3) across the Siguas Valley where the geology is similar but without agricultural activity. We provide...

...) course instruction, (2) direct current (DC) resistivity field surveys, and (3) post-project sustainability. Open source refers to software, educational material and data that are made freely available under a license that allows others to reuse, adapt, and contribute to the development of the resources...

... groundwater exploration water international summary seg international exposition upstream oil & gas bob thorpe structural geology exploration geophysicist 10 rwanda robert wiley reservoir characterization dc resistivity resistivity training granite river quartzite berkeley...

.... Geophysical methods have the potential to improve underground construction projects by imaging the subsurface ahead of a TBM. In particular, direct current (DC) resistivity is an attractive option because the electrical conductivities of soils, rocks, pipes, and other anomalous features vary over several...

... ABSTRACT We present an element-free Galerkin method (EFGM) based on adaptive background cells for 2.5D direct current (DC) resistivity modelling. In our method, we only need nodal data, which makes it flexible for the description of arbitrary complex geoelectric models and efficient for local...

... coliform water well dc resistivity artesian spring groundwater log analysis ABSTRACT The residents of Leogane, Haiti have historically relied on shallow hand-excavated wells as a source of water. Following the 2010 Haiti Earthquake, a cholera outbreak occurred in Leogane. Cholera...

... hydrogeologic process lagoon electrode porewater reservoir characterization sensitivity application survey configuration resistivity subsurface henderson rarotonga log analysis dc resistivity well logging parengaru stream crp survey Applications of DC resistivity for mapping hydrogeologic...

... need to be considered. dc resistivity anomaly magnetic permeability spherical target electrical potential dipole magnetic source magnetic anomaly upstream oil & gas seg houston 2013 geophysics frequency background conductivity low frequency dipole source magnetic target...

... and Guallardo (the inversion looks for models with strcutural similarities) to perform the joint inversion of DC resistivity and seismic data. Time-lapse inversion is performed with an actively time-constrained (ATC) approach. In this approach, the subsurface is defined as a space-time model. All the snapshots...

... SUMMARY In this talk, we present results from a geophysical investigation at the Chimney Rock Great House using magnetics, electromagnetics, and DC resistivity. Our data is focused on a grid southwest of the Great House, where we use geophysics to detect potential buried walls. These walls may...

...Locating abandoned coal mines to assess subsidence risk using self-potential and dc resistivity, Weld County, Colorado Karoline Bohlen* and André Revil, Colorado School of Mines and Nancy House, EnCana Oil & Gas (USA), Inc Summary Shallow geophysical surveying may prove a valuable component...

... will not be large enough at either site to warrant magnetic method in exploration for willemite. Electrical method simulations vary for the two deposit sites. At Vazante, neither DC resistivity or induced polarization (IP) will generate a detectable response based on physical property values; while at Beltana...

... mineralization interpretation oldenburg inversion dc resistivity geophysical data chargeability information susceptibility metals & mining Mining Geophysics 1: Hard Rock Monday afternoon, October 24th Joint interpretation of DC, IP, magnetic, airborne EM, geological, and mineralization data...

... ABSTRACT No preview is available for this paper. sp anomaly graben anomaly limestone dike resistivity dc resistivity reservoir characterization reflection survey foundation rock dam eng 3 upstream oil & gas self potential geophysical investigation corps us government...