Geology of the Sanokole Quadrangle, Liberia

Open-File Report 74-304
Prepared in cooperation with the Liberian Geological Survey
By:  and 

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Abstract

As part of a program undertaken cooperatively by the Liberian Geological Survey (LGS) and the U. S. Geological Survey (USGS), under the sponsorship of the Government of Liberia and the Agency for Inter-national Development, U. S. Department of State, Liberia was mapped by geologic and geophysical methods during the period 1965 to 1972. The resulting geologic and geophysical maps are published in ten folios, each covering one quadrangle (see index map). Systematic map synthesis by Force began in 1971 and included field data as shown on figure 1. Observations but not interpretations made by Offerberg and Tremaine (1961) were incorporated in the mapping. The area compiled by Berge (fig. 1) is the LAMCO (Liberian American-Swedish Minerals Co.) Nimba Concession Area. Mapping has been done by company geologists since 1955 and summarized by Berge (1966, 1968, 1973, 1974). Detailed mapping has been done in many areas underlain by iron deposits, but the concession area as a whole has been mapped only by reconnaissance methods. For both compilers, photogeologic mapping and the interpretation of air-borne magnetic and radiometric surveys (Behrendt and Wotorson, 1974, a and b) are integral to the interpretation as shown.

Study Area

Publication type Report
Publication Subtype USGS Numbered Series
Title Geology of the Sanokole Quadrangle, Liberia
Series title Open-File Report
Series number 74-304
DOI 10.3133/ofr74304
Year Published 1974
Language English
Publisher U.S. Geological Survey
Description Report: 17 p.; 1 Plate: 35.55 x 24.59 inches
Country Liberia
Scale 250000
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