Characteristics of discrete and basin-centered parts of the Lower Silurian regional oil and gas accumulation, Appalachian basin: Preliminary results from a data set of 25 oil and gas fields

U.S. Geological Survey Open-File Report 98-216

Figure 5:  Map of the regiopnal hydrocarbon accumulation in Lower Silurian sandstone reservoirs of the Appalachian basin showing oil and gas fields used in this report.  Also shown is the approximate updip limit of the basin-centered (deep basin) gas accumulation and adjoining water-block trap of Davis (1984) and Zagorski (1991).

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