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SUMMARY:Geo 5050 Colloquium Series: Jason Greenwood, M.Sc., Resistivity Surveys
DESCRIPTION;ENCODING=QUOTED-PRINTABLE:Marine Resistivity Mapping in Support of Panama Canal Expansion and Submarine Groundwater Discharge StudiesJason Greenwood is a geophysicist at Advanced Geosciences, Inc. in Austin, TX who will be focusing on instrument and software training, support, marketing and sales.  He brings with him over 12 years of related experience working for the US Geological Survey, hydroGeophysics, Inc. and the Pacific Northwest National Laboratory.  Recent research projects focused on applying 3D borehole electrical resistivity and induced polarization methods to monitor and characterize underground waste storage sites undergoing remediation. =0D=0A=
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He received his BS in Environmental Geology from the University of Idaho before working for the US Geological Survey while completing his MS in Geophysics from the University of South Florida under the direction of Prof. Sarah Kruse and Prof. Stewart Sandburg.  During this time, static and streaming marine resistivity methods were utilized to image time series fluctuations in submarine groundwater discharge in Santa Barbara, CA and Tampa Bay, Florida as well as locate brine seeps beneath a freshwater reservoir in Israel (Sea of Galilee).  These methods were then deployed on a larger scale covering the entire Panama Canal in 2008-09 with hydroGeophysics, Inc. to map geotechnical properties in support of ongoing canal expansion.=0D=0A=
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Pacific Northwest National Lab projects in 2009-2012 focused on time series 3D electrical resistivity tomography imaging of tracer movement within a former waste disposal site, fluctuations in ground and river water within an associated hyporheic zone and measurements of electrical anisotropy and heterogeneity.  Resistivity tomography methods helped to evaluate strategies for the injection of various remediation agents designed to sequester radionuclides within the vadose zone.  Project locations included former Uranium and Plutonium processing sites in Washington and Colorado.=0D=0A=

LOCATION:BSB E231
DTSTART;TZID=US_Central:20120914T150000
DTEND;TZID=US_Central:20120914T160000
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