1. 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 Author/Creator: Ryder, Robert T. Publication/Creation: [Reston, VA] : U.S. Dept. of the Interior, U.S. Geological Survey, [1998] Resource Type: Book Access & Availability: Loading