Hydrocarbon-bearing sandstone in the Upper Jurassic Naknek Formation on the south shore of Kamishak Bay

Richard G. Stanley; Trystan M. Herriott; Kenneth P. Helmold; Robert J. Gillis; Paul G. Lillis

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USGS · 70048253

Hydrocarbon-bearing sandstone in the Upper Jurassic Naknek Formation on the south shore of Kamishak Bay

Richard G. Stanley·Trystan M. Herriott·Kenneth P. Helmold·Robert J. Gillis·Paul G. Lillis

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Abstract

The presence of an active petroleum system in Kamishak Bay is demonstrated by an outcrop of hydrocarbon-bearing sandstone in the Upper Jurassic Naknek Formation near the south shore of the bay (fig. 1). The outcrop is about 140 km southwest of Homer on a small, unnamed island near the mouth of the Douglas River (fig. 17). The existence of this outcrop was kindly reported to us by Les Magoon (U.S. Geological Survey, emeritus), who also provided a topographic map showing its exact position. The outcrop was mentioned very briefly in publications by Magoon and others (1975, p. 19) and by Lyle and Morehouse (1977, p. E-1), but to our knowledge there are no detailed descriptions of this outcrop or its hydrocarbons in the published scientific literature.

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Alaska Division of Geological & Geophysical Surveys Preliminary Interpretive Report Report

Source-reported bounding extent: 58° to 61° latitude; -156° to -151.5° longitude. This indicates report coverage, not an exact sampling location. View area on OpenStreetMap.

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Richard G. Stanley, Trystan M. Herriott, Kenneth P. Helmold, Robert J. Gillis, Paul G. Lillis. 2013. Hydrocarbon-bearing sandstone in the Upper Jurassic Naknek Formation on the south shore of Kamishak Bay. https://pubs.usgs.gov/publication/70048253

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