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This project is jointly funded by the State's Strategic and Critical Minerals Assessment program (part of the Airborne Geological/Geophysical Mineral Inventory [AGGMI]) and the USGS National Cooperative Geologic Mapping Program, STATEMAP component, under award number G14AC00167 for 2014. The views and conclusions contained in this document are those of the authors and should not be interpreted as necessarily representing the official policies, either expressed or implied, of the U.S. Government. We acknowledge Cook Inlet Region Inc. (CIRI), Chickaloon Moose Creek Native Association, Knikatnu, Ninilchik Natives Association, Salamatof Native Association, Seldovia Native Association, and Tyonek Native Corporation for supporting the project and providing access to private lands in the mapping area. Brenda Becker of the Bureau of Land Management (BLM) Glennallen Field Office assisted us with permitting on BLM-managed lands. We thank Peter Oswald, Jeanine Schmidt, Melanie Werdon, Ben Porterfield, David Adams, Laurel Burns, Ken Ridgway, and others for geological discussions that helped us prepare for the field and understand our results when we returned. Jeff Benowitz and Paul Layer of the University of Alaska Fairbanks (UAF) Geochronology Lab provided 40Ar/39Ar analyses and assisted us in their interpretation, and Ken Severin of the UAF Advanced Instrumentation Laboratory assisted us with the microprobe. Scott Arko of the UAF Alaska Satellite Facility furnished us with orthorectified areal imagery. We appreciate the attempts of Paul O'Sullivan and GeoSep Services to recover zircons from some of our undated map units. Robert Blodgett provided us with fossil identifications and supporting discussions. Melanie Werdon and De Anne Stevens gave timely and constructive reviews. We appreciate the warm hospitality and logistical support of Jessi Braga and Stephan Lake Lodge, and we thank Alpine Air Alaska pilots Martin Hoessinger and Jared Berman for skilled and safe flying. The geologic map database was converted to GeMS, quality controlled, and then finalized by DGGS staff Wes Buchanan, Ally Steinleitner, and DGGS contractors. This geologic map (or report or conversion or product, etc.) was funded by the USGS National Cooperative Geologic Mapping Program under STATEMAP award number G23AC00584, 2023, and the State of Alaska General Fund. The views and conclusions contained in this document are those of the authors and should not be interpreted as necessarily representing the official policies, either expressed or implied, of the U.S. Government.
The Alaska Division of Geological and Geophysical Surveys (DGGS) initiated a multi-year project to improve the understanding of mineral potential in western Wrangellia. The project began in 2013 with acquisition of magnetic and electromagnetic (EM) geophysical data over unsurveyed portions of the terrane in the Clearwater and Talkeetna Mountains. DGGS geologists completed a three week field program of geologic mapping, rock, and stream sediment sampling in 2013, and followed up with 1:50,000-scale mapping of the Talkeetna Mountains C-4 Quadrangle during the 2014 field season.
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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.
The State of Alaska makes no express or implied warranties (including warranties of merchantability and fitness) with respect to the character, function, or capabilities of the electronic services 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, any failure thereof, or otherwise, and 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: | geologic map in format geodatabase |
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http://dx.doi.org/10.14509/29470 |