DGGS Staff, 2013, Geologic Map Index of Alaska: Digital Data Series DDS 5, State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys, Fairbanks, AK, USA.Online Links:
This is a Point data set.
The map projection used is GS_1984_Web_Mercator_Auxiliary_Sphere.
Planar coordinates are encoded using coordinate pair
Abscissae (x-coordinates) are specified to the nearest 0.00000001
Ordinates (y-coordinates) are specified to the nearest 0.00000001
Planar coordinates are specified in meters
The horizontal datum used is D_WGS_1984.
The ellipsoid used is WGS_1984.
The semi-major axis of the ellipsoid used is 6378137.000000.
The flattening of the ellipsoid used is 1/298.257223563.
The online Map Index dataset and application were compiled and developed through funding from the federal Minerals Data and Information Rescue in Alaska (MDIRA) program and State of Alaska's General Fund. The following DGGS employees helped create the Map Index application: Jennifer Athey (project manager, geologist), Susan Seitz (database manager/programmer), Anonymous (programmer), Simone Montayne (geologist), and Ken Woods (systems administrator). Application design ideas and an application prototype were provided by Will Fisher, Geographic Information Network of Alaska (programmer). DGGS staff responsible for original data compilation: Laurel Burns (project manager, geophysicist), Robin Smith (geologist), Shelley Hicks (geologist), and Heather Erickson (geologist). USGS collaborator David Soller (Chief, National Geologic Map Database project) provided data for thousands of U.S. Geological Survey geology-related maps in Alaska.
(907)451-5020 (voice)
dggsgis@alaska.gov
The Map Index interactive web mapping application will make it easier for anyone with Internet access to find the geologic maps they need to perform research, make informed resource- and land-management decisions, and better understand the geology across the state. This project was initiated and originally funded through the federal Minerals Data and Information Rescue in Alaska (MDIRA) program and continues to be supported by State of Alaska general funds.
U.S. Geologic Survey, unknown, National Geologic Map Database <http://ngmdb.usgs.gov/>.
Map Index records are checked programmatically to be consistent with other publication databases. Errors, inconsistencies, and missing records may be reported to <dnr.dggs.webapps@alaska.gov>.
All maps have an associated spatial footprint, either as an outline surrounding the area that was mapped or as a rectangular outline representing the extent of geologic mapping. The map outlines are generalized and do not correspond exactly with the actual mapped area.
On its launch, Map Index contained records for approximately 90 percent of DGGS's total geology-related map collection and approximately 70 percent of the USGS's map collection. DGGS plans to add outlines and data to the application for remaining geologic maps published by DGGS, USGS, U.S. Bureau of Mines, and U.S. Bureau of Land Management. The application will be updated irregularly with new map publications as they become available.
Referential integrity among the tables is enforced by the database system.
Are there legal restrictions on access or use of the data?
- Access_Constraints:
- This report, map, and/or dataset is available directly from the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys (see contact information below).
- Use_Constraints:
- Any hard copies or published datasets utilizing these datasets shall clearly indicate their source. If the user has modified the data in any way, the user is obligated to describe the types of modifications the user has made. The user specifically agrees not to misrepresent these datasets, nor to imply that changes made by the user were approved by the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys. The State of Alaska makes no express or implied warranties (including warranties for merchantability and fitness) with respect to the character, functions, or capabilities of the electronic data or products or their appropriateness for any user's purposes. In no event will the State of Alaska be liable for any incidental, indirect, special, consequential, or other damages suffered by the user or any other person or entity whether from the use of the electronic services or products or any failure thereof or otherwise. In no event will the State of Alaska's liability to the Requestor or anyone else exceed the fee paid for the electronic service or product.
(907)451-5020 (voice)
(907)451-5050 (FAX)
dggspubs@alaska.gov
DDS 5
The State of Alaska makes no expressed or implied warranties (including warranties for merchantability and fitness) with respect to the character, functions, or capabilities of the electronic data or products or their appropriateness for any user's purposes. In no event will the State of Alaska be liable for any incidental, indirect, special, consequential, or other damages suffered by the user or any other person or entity whether from the use of the electronic services or products or any failure thereof or otherwise. In no event will the State of Alaska's liability to the Requestor or anyone else exceed the fee paid for the electronic service or product.
| Data format: | HTML/text |
|---|---|
| Network links: |
<http://maps.dggs.alaska.gov/mapindex/> |
| Data format: | WFS |
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| Network links: |
TBD |
| Data format: | KML |
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| Network links: |
TBD |
(907)451-5020 (voice)