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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Geology of the New Castle area, Craig County, Virginia

Bregman, Martin L. January 1967 (has links)
Location of Area: The New Castle area is located in the northeastern half of Craig County, Virginia, in the Valley and Ridge Province. The northwestern corner of the area is 4.5 miles from the Virginia-West Virginia border (fig. 1). The map area is rectangular and encompasses approximately 45 square miles. It is bounded by latitudes 37° 25' 50" N. and 37° 31' 30" N., and longitudes 80° 05' 00“ W. and 80° 12' 30" W. Purpose of the Investigation: The investigation included: 1) Preparation of a geologic map and crosssections; 2) The study and descriptions of the rock formations, with detailed measurements of several stratigraphic sections; 3) An analysis of the geologic structure, and; 4) An interpretation of the geologic history of the area. Methods of Study: Geologic mapping of the area on a scale of 1:24,000 was carried out from June 1966 to April 1967. The field data were recorded on a composite map of portions of the Catawba, Virginia and Looney, Virginia, 7%-minute quadrangles and southern sections of the 15-minute New Castle, Virginia quadrangle advance sheets. The northern portion of the area, recorded on the advance New Castle sheets, has a contour interval of 40 feet whereas the southern portion, recorded on the Catawba and Looney quadrangles, has a contour interval of 20 feet. As much use as possible was made of United States Geological Survey aerial photographs at scales of 1:27,120. Owing to the lack of distinctive lithologic horizons the structure of the Middle Devonian shales was not mapped in detail. / Master of Science

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