HR: 1330h
AN: ED32B-1200    [PDF]
TI: Coupling Near-surface Geophysics with Three-Dimensional Geological Model Building for Environmental Investigations
AU: * Kopczynski, S E
EM: sarahk@crrel.usace.army.mil
AF: Cold Regions Research and Engineering Laboratory, 72 Lyme Road, Hanover, NH 03755 United States
AU: Snyder, C F
EM: colbysnyder.yec@verizon.net
AF: YEC, 612 Corporate Way # 4m, Valley Cottage, NY 10989 United States
AU: Myse, T A
EM: Todd.A.Myse@erdc.usace.army.mil
AF: Cold Regions Research and Engineering Laboratory, 72 Lyme Road, Hanover, NH 03755 United States
AU: Baker, G S
EM: gbaker@geology.buffalo.edu
AF: Dept. of Geology, Univ at Buffalo, 876 Natural Sciences Complex, Buffalo, NY 14260 United States
AU: Bigl, S R
EM: sbigl@crrel.usace.army.mil
AF: Cold Regions Research and Engineering Laboratory, 72 Lyme Road, Hanover, NH 03755 United States
AU: Finnegan, D C
EM: david.finnegan@erdc.usace.army.mil
AF: Cold Regions Research and Engineering Laboratory, 72 Lyme Road, Hanover, NH 03755 United States
AU: Delaney, A J
EM: Allan.J.Delaney@erdc.usace.army.mil
AF: Cold Regions Research and Engineering Laboratory, 72 Lyme Road, Hanover, NH 03755 United States
AU: Holmes, J V
EM: James.V.Holmes
AF: Cold Regions Research and Engineering Laboratory, 72 Lyme Road, Hanover, NH 03755 United States
AB: Investigating the subsurface at scales relevant to environmental remedial investigations can be complicated in areas that have been repeatedly glaciated or complicated by the presence discontinuous frozen ground and fractured bedrock. Ground water flow and contaminant migration pathways are very hard to infer in such heterogeneous aquifers characterized by a complex system of juxtaposed hydrogeological facies. Our investigations have merged using near-surface geophysical surveys with complex three-dimensional geological modeling using EarthVision at various sites in Alaska to assist with better delineating possible groundwater and potential contaminant migration pathways to assist with remedial investigations. These modeling efforts provide a three-dimensional framework to assist with remediation decision-making. Site characterization data were acquired from near-surface seismic refraction tomography, DC resistivity surveys, ground penetrating radar profiles, deep borehole drilling, hydrological modeling, and water quality observations. These data are synthesized to develop a conceptual model of local geology in the context of regional record; the conceptual model is then used as the basis to develop a three-dimensional model of subsurface conditions by modeling the data using EarthVision software.
DE: 0935 Seismic methods (3025)
DE: 0994 Instruments and techniques
DE: 1829 Groundwater hydrology
DE: 1832 Groundwater transport
SC: Education and Human Resources [ED]
MN: 2003 Fall Meeting