Abstract
 Correlating Airborne Geophysical Survey Data to Conductive Strata Track: Environmental Management Author(s): Joseph Giacinto, Leonard Rafalko, Paul Petzrick An airborne geo-electrical survey was undertaken to determine if flooded mine tunnels and acid mine drainage sources could be delineated through the resulting spatial patterns of the data collected. The raw measured survey data was reduced with standard geophysical processing techniques to help eliminate extraneous noise and smooth erroneous data points. The processed data included measurement location coordinates, elevations, and electrical conductivity for subsurface depth intervals encompassing the mine tunnel workings. The nature of the water chemistry in the flooded tunnels theoretically should create a high electrical conductivity signature. The processed survey data was imported into ArcGIS as point data and converted to raster formats for statistical analyses. Through spatial analyses of survey data and correlations to existing mine maps, refined estimates of flooded mine workings extents were developed. Accurately delineating acid mine discharge sources and flooded mine workings is a key component in planning for mitigation of acidic mine water discharge to the surrounding surface water systems. Joseph Giacinto ERM 200 Harry S Truman Parkway, Suite 400 Annapolis , MD 21401 US Phone: 410 266 0006 E-mail: joseph.giacinto@erm.com Leonard Rafalko Environmental Resources Management, Inc. 200 Harry S Truman Parkway, Suite 400 Annapolis , MD 21401 US Phone: 410 266 0006 E-mail: lenny.rafalko@erm.com Paul Petzrick Maryland Power Plant Research Program Tawes State Office Building Annapolis , MD 21401 US Phone: (410) 260 8669 E-mail: ppetzrick@dnr.md.state.us |
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