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This geologic map was made possible through the collaborative efforts of several contributors. Geologic GIS data layers were developed by M.D. Hendricks (2019), A.L. Willingham (2019), A.E. Macpherson (2022), and K.A. Qureshi (2024, 2025). Cartographic design and layout were completed by A.E. Macpherson (2022) and K.A. Qureshi (2024, 2025). Ally M. Steinleitner implemented final database quality control and packaging. The map benefited from peer review by J.H. Long (2025), whose insights helped improve its clarity and accuracy. Funding was provided by the State of Alaska and the USGS National Cooperative Geologic Mapping Program under STATEMAP award number G21AC10706. 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 purpose of this research was to produce a detailed, 1:63,360-scale interpretive bedrock geologic map of the Racetrack Basin area in the northeastern Chandler Lake quadrangle, northern Alaska. The study aimed to refine the understanding of sedimentologic, stratigraphic, and structural relationships within Brookian megasequence strata, which recorded the evolution of the Colville foreland basin and Brooks Range. By documenting stratigraphic thickness variability and recognizing previously abandoned members of the Schrader Bluff Formation, the research contributed to regional sequence-stratigraphic interpretations and enhanced the geologic framework critical to petroleum systems analysis in northern Alaska.
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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: | geologic map in format geodatabase |
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https://doi.org/10.14509/31723 |