FIELD GEOLOGY IN THE DIGITAL AGE: LEVERAGING GOOGLE EARTH VISUALIZATIONS TO ENHANCE GEOLOGIC MAPPING PRODUCTIVITY

High-resolution 3D Google Earth (GE) surface models serve as interactive imagery that can be used for reconnaissance mapping prior to field work and as a 3D visualization tool during geologic mapping campaigns. Our workflow involves detailed reconnaissance mapping using the GE platform on ultra-high definition (UHD) workstation displays prior to field work. Native GE path and polygon tools are adapted for geologic mapping and used to characterize depositional, intrusive, and structural contacts. Mappable units and structures are distinguished in areas with high-resolution imagery and cross-checked against the USGS National Geologic Map Database to provide additional geologic context. Geologic models constructed in GE serve as working hypotheses that are tested during field mapping and serve to focus field work in critical areas. In the field, conventional mapping utilizes printouts of high-resolution GE images overlain with transparency on USGS topographic maps. We enhance field mapping through high-resolution GE visualizations accessed via a mobile research laboratory with layout-work space and with satellite uplink providing internet connectivity viewed on UHD capable workstations. The mobile laboratory facilitates feedback between field-based activities and digital visualizations. This process fosters a rapid iteration of geologic models integrating contextual information from GE and rigorous field observation. This workflow focuses detailed geologic mapping, provides regional context, enhances geologic model development and validation, and greatly increases productivity during field work. The mobile laboratory and research activities are supported by a partnership between the University of Texas at Dallas, the Ellison Miles Foundation, Pioneer Natural Resources, Inc., and the National Science Foundation.