geochron-data: Spreadsheets with geochronology lab results, preferred ages, and additional data documentation.
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The authors are indebted to Gil Mull for showing LePain the outcrop addressed in this report during the 1999 field season. Paul Decker (Oil Search Alaska) was instrumental in establishing the regional framework for the Schrader Bluff Formation and helping to integrate subsurface observations with surface outcrops. We thank Trystan Herriott (DGGS) for reviewing an early version of fig. 4 and discussions regarding sources of error in U-Pb geochronology. Funding was provided by Chevron North America Exploration and Production Company, ConocoPhillips Alaska, Oil Search Alaska, U.S. Geological Survey, and the State of Alaska. We thank Ken Helmold (Alaska Division of Oil and Gas) for reviewing a draft of this report.
The DGGS Energy Resources Section generates new, unbiased information on the geologic framework of frontier areas in Alaska that may host undiscovered oil, gas, coal, and geothermal resources. Northern Alaska is a world class petroleum province that includes some of the most prospective onshore regions remaining in North America. Despite this potential, the North Slope remains underexplored relative to other sedimentary basins around the world. New exploration ventures are hampered by the limited amount of published geologic data, and much of the available information is reconnaissance in nature. The measured stratigraphic section presented in this report documents facies association stacking patterns in part of the upper Schrader Bluff Formation in an outcrop along the west side of the Ivishak River in the central North Slope of Alaska. The section is located on the north limb of the Kuparuk anticline approximately 8.4 km (5.2 mi) south-southeast of the Mobil Echooka Unit 1 well. Despite extensive cover through fine-grained intervals, the outcrops addressed in this report represent the best exposures of the upper Schrader Bluff Formation known to the authors. For this reason, we view it as a reference section for the upper Schrader Bluff Formation and the U-Pb age is the first published robust radioisotopic age constraint for Upper Cretaceous rocks on the east-central North Slope.
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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: | Spreadsheets with sample locations, geochronology lab results, summary ages, and data dictionaries. in format report, tables |
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| Network links: |
https://doi.org/10.14509/30693 |