نتایج جستجو برای: geophysical survey
تعداد نتایج: 381129 فیلتر نتایج به سال:
*Alaska Science Center, U.S. Geological Survey, 4210 University Drive, Anchorage, Alaska 99508, U.S.A. {Alaska Fire Service, Bureau of Land Management, P.O. Box 35005, Fort Wainwright, Alaska 99703, U.S.A. {Department of Meteorology, San Jose State University, San Jose, California 95192, U.S.A. 1Earth Surface Processes Team, U.S. Geological Survey, Denver Federal Center, Denver, Colorado 80225,...
Pletser et al. performed a seismic-refraction survey on Devon Island with the goal of assessing the feasibility of astronauts carrying out such operations on Mars to detect subsurface water. We demonstrate that the seismic analysis is fundamentally flawed. The survey performed in this test will likely bear little resemblance to future crewed geophysical surface operations, and better methods ex...
This study provides an example of fault structure delineation using both geophysical measurements and soil-gas surveys. Seismic refraction and electrical resistivity tomography investigations were performed in com-bination with Direct Push (DP) soil gas concentration measurements, with the main objective being the char-acterization of an assumed permeable fault structure which is covered by sed...
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