ArAr_data: Analytical lab data and accompanying data dictionary ArAr_summary-data: Summary data spreadsheet and accompanying data dictionary
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This work was jointly funded by the State of Alaska and the U.S. Geological Survey through the Earth Mapping Resources Initiative (Earth MRI) program through cooperative agreement G23AC00372. The geochronology data presented in this study were collected at the University of Alaska Fairbanks Geophysical Institute's Geochronology Laboratory. The views and conclusions contained in this document are those of the authors and should not be interpreted as representing the opinions or policies of the U.S. Geological Survey. Mention of trade names or commercial products does not constitute their endorsement by the U.S. Geological Survey.
The purpose of this research was to generate 40Ar/39Ar geochronology ages that improve understanding of the geologic history, tectonic evolution, and timing of mineralization within the Chena Project area of the Big Delta and Circle quadrangles. These age data were collected to support modern 1:100000 scale geologic mapping and to refine interpretations of structurally controlled and intrusion related mineral systems, including gold, tungsten, molybdenum, and syngenetic lead zinc silver occurrences. The results provide chronological constraints that strengthen ongoing efforts to evaluate mineral resource potential in Interior Alaska.
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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 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: | table in format spreadsheet |
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https://doi.org/10.14509/32086 |