Great Basin Paleontological Database
Ning Zhang et al., GeoInformation Consulting, 2650 NW Roosevelt Drive, Corvallis, Oregon 97330, USA.
This paper summarizes the philosophy and structure behind the recently established Great Basin Paleontological Database, which can be served over the World Wide Web for data entry, queries, displays, and retrievals. The legacy data being entered is derived from internal U.S. Geological Survey fossil reports and publications generated over the past 150 years. Once fully populated, this database should prove to be an invaluable tool for future geologic mapping, paleontological research, inventory of fossils on public lands, and mineral and oil exploration in the Great Basin.
Laser rangefinders and ArcGIS combined with three-dimensional photorealistic modeling for mapping outcrops in the Slick Hills, Oklahoma
Mohammed Alfarhan et al., Center for Lithospheric Studies, Dept. of Geosciences, University of Texas at Dallas, 800 West Campbell Road, Richardson, Texas 75080-3021, USA.
For detailed mapping of geologic outcrop features such as contacts and terrain, especially on steep slopes and cliffs, it is effective to map digitally and obliquely at relatively close range using handheld reflectorless laser rangefinders ("guns"). The module three-dimensional laser tool (3DLT) has been written to combine the ESRI ArcGIS module ArcMap using Visual Basic application language and the ArcObjects components in order to provide a simple, yet sophisticated platform for mapping, visualizing, and analyzing outcrops with a field computer. It integrates a relatively inexpensive laser rangefinder and any type of global positioning system (GPS) and assigns attributes defined by the user or from an extensive geologic dictionary. It uniquely allows for real-time display and analysis in 3-D space as points, lines, a
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Geological Society of America