Interior basins of Alaska

Sedimentology and hydrocarbon source rock potential of Miocene-Oligocene strata, McGrath Quadrangle: An outcrop analog for the Holitna Basin

“…Kirschner (1994) arrived at a similar conclusion. However, a small-to moderate-sized gas accumulation (100 to 200 billion cubic feet) could represent a significant resource for local consumption.…”

“…1). This gravity low is situated astride the Farewell fault zone (Kirschner, 1994), the western continuation of the Denali fault system (DFS) in southwestern Alaska.…”

“…The Holitna basin is entirely a subsurface feature -its presence is inferred from regional gravity data that show an elongate northeast-trending, tear drop-shaped gravity low astride the Farewell fault zone (Kirschner, 1994;Meyer and Krouskop, 1984; Fig. 1).…”

Summary of 2012 reconnaissance field studies related to the petroleum geology of the Nenana Basin, interior Alaska

“…1). Subsequent studies further suggested the basin was likely extensional in origin (Kirschner, 1994), a conclusion later confirmed by seismic data (Van Kooten and others, 2012). The first two exploratory wells (Union Nenana No.…”

“…The subsidence in these basins is clearly tectonic in origin and they appear to be dominantly filled by Cenozoic nonmarine sediment (Kirschner, 1994). The Nenana basin was first recognized as a thick sedimentary basin following the collection of regional gravity data (Barnes, 1961; see contours in fig.…”