Description
The Nikolai electromagnetic and magnetic airborne geophysical survey is located in interior Alaska in the Delta River mining district, about 200 kilometers southeast of Fairbanks. Frequency domain electromagnetic and magnetic data were collected with the Aerodat Condor system in 1995. A total of 3412.8 line kilometers were collected covering 660.1 square kilometers. Line spacing was 200 meters (m). Data were collected on a helicopter towed sensor platform ('bird') on a 30 m long line. The electromagnetic equipment recorded data slightly above 30 m above ground level (AGL), and the magnetometer recorded data slightly above 45 m AGL due to safety considerations. The Nikolai data were provided to DGGS by the U.S. Department of Interior Bureau of Land Management (BLM) and were merged with the Southern Delta River survey (2002) as a contract deliverable. The 2003 release of the Southern Delta River survey included map sheets of the merged data. The data, as well as additional metadata, are available from the DGGS website: http://doi.org/10.14509/30262.
Resources
| Name | Format | Description | Link |
|---|---|---|---|
| Web Resource | Unknown | Open resource | |
| Web Resource | Unknown | Open resource | |
| Web Resource | Unknown | Open resource | |
| DGGS geophysics datasets are typically compilations of multiple digital data file formats. These formats may include: GeoTiff, ESRI shapefile, Geosoft binary grid (GRD), Microsoft Office documents, PDF, ER Mapper ERS, ASCII text files (including CSV), Geosoft ASCII grid (GXF), Geosoft database, AutoCAD DXF, Geosoft plot file (PLT), Printer files (HPP, PRN, or other), digital images (multiple formats), digital video (multiple formats), Geosoft ASCII XYZ, Geosoft ASCII files (PLY, i0, EXP), and KMZ | Unknown | CSDGM IMPORT ERROR: No digtinfo/formcont | Open resource |
Tags
- aeromagnetic
- aeromagnetic data
- aeromagnetic map
- aeromagnetic survey
- airborne geophysical survey
- analytic signal
- ann creek
- apparent resistivity data
- apparent resistivity map
- apparent resistivity survey
- cabin creek
- chistochina mining district
- clear creek
- conductivity survey
- delta river
- delta river mining district
- electromagnetic data
- electromagnetic survey
- eureka creek
- exploration
- first vertical derivative
- fish lake
- frequency domain electromagnetic data
- geologic
- geology
- geophysical map
- geophysical survey
- geophysics
- geophysics search tag
- gridded data
- landmark gap lake
- line data
- magnetic data
- magnetics
- magnetic survey
- mccallum creek
- mccallum glacier
- phelan creek
- rainbow mountain
- rainbow ridge
- rainy creek
- rainy mountain
- remote sensing
- resistivity
- resistivity survey
- rock creek
- rusty lake
- specimen creek
- valdez creek mining district
- wildhorse creek