Koehler, R.D., 2013, Quaternary Faults and Folds (QFF): Digital Data Series DDS 3, Alaska Division of Geological & Geophysical Surveys, Fairbanks, AK, USA.Online Links:
This is a vector 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 authors extend gratitude to many staff members of the Division of Geological & Geophysical Surveys who assisted in completing this project. Partial funding was provided by the U.S. Geological Survey National Earthquake Hazards Reduction Program (Grant #03WRAG0027) and the State of Alaska, Division of Homeland Security and Emergency Management, Earthquake Hazards Reduction State Assistance Program (Grant #39320/39507).
(907)451-5029 (voice)
dggsgis@alaska.gov
To provide an accurate, user-friendly, reference-based fault inventory to the public, we have compiled an interactive map which displays locations and relative activity of Alaska's faults and folds. This resource is intended to provide simple and quick means of visualizing structure locations and characteristics. Users must recognize mapping certainty and data accuracy limitations when zooming in farther than the stated mapped scale for a given feature and treat resulting visual representations with appropriate caveats.
Plafker, George, Gilpin, L.M., and Lahr, J.C., 1994, Neotectonic map of Alaska: The Geology of Alaska: Geological Society of America, Boulder, CO, United States.Online Links:
Plafker, George, and Berg, H.C., 1994, The Geology of Alaska.Online Links:
Koehler, R.D., Farrell, Rebecca-Ellen, Burns, P.A.C., and Combellick, R.A., 2012, Quaternary faults and folds in Alaska: A digital database: Miscellaneous Publication MP 141, Alaska Division of Geological & Geophysical Surveys, Fairbanks, AK, USA.Online Links:
Koehler, R.D., Burns, P.A.C., and Weakland, J.R., 2013, Digitized faults of the Neotectonic map of Alaska (Plafker and others, 1994): Miscellaneous Publication MP 150, Alaska Division of Geological & Geophysical Surveys, Fairbanks, AK, USA.Online Links:
Data sources used in this process:
The features in the dataset were entirely derived from peer reviewed publications. Users are directed to see DGGS publications MP 141 (Quaternary) and MP 150 (pre-Quaternary) for a comprehensive discussion of the attribute accuracy of the originating data.
Users must recognize mapping certainty and data accuracy limitations when zooming in farther than the stated mapped scale for a given feature and treat resulting visual representations with appropriate caveats. The scale of the originating Plafker map that was used to locate pre-Quaternary features is 1:2,500,000.
This resource is intended to provide simple and quick means of visualizing structure locations and characteristics.
Not applicable
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 3
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.
DGGS publications are available as free online downloads or you may purchase paper hard-copies or digital files on CD/DVD or other digital storage media by mail, phone, fax, or email from the DGGS Fairbanks office. To purchase this or other printed reports and maps, contact DGGS by phone (907-451-5020), e-mail (dggspubs@alaska.gov), or fax (907-451-5050). Payment accepted: Cash, check, money order, VISA, or MasterCard. Turnaround time is 1-2 weeks unless special arrangements are made and an express fee is paid. Shipping charge will be the actual cost of postage and will be added to the total amount due. Contact us for the exact shipping amount.
| Data format: | vector digital data |
|---|---|
| Network links: |
<http://dx.doi.org/10.14509/24956> <http://maps.dggs.alaska.gov/qff/> |
(907)451-5020 (voice)