Map and digital database of sedimentary basins and indications of petroleum in the Central Alaska Province

This database and accompanying text depict historical and modern reported

occurrences of petroleum both in wells and at the surface within the

boundaries of the Central Alaska Province. These data were compiled from

previously published and unpublished sources and were prepared for use in

the 2002 U.S. Geological Survey petroleum assessment of Central Alaska,

Yukon Flats region. Indications of petroleum are described as oil or gas

shows in wells, oil or gas seeps, or outcrops of oil shale or oil-bearing

rock and include confirmed and unconfirmed reports. The scale of the

source map limits the spatial resolution (scale) of the database to

1:2,500,000 or smaller.