Precambrian basement map of the northern midcontinent, U.S.A.
By: compiled by P.K. Sims ; prepared in cooperation with the Geological Surveys of Arkansas ... [et al.].
Contributors: Arkansas Geological Survey.; Geological Survey (U.S.)
Series: Open-file report -- 85-604.; Open-file report (Geological Survey (U.S.)) -- 85-604.
Publisher: U.S. Dept. of the Interior, Geological Survey
Published: 1985
Place of publication: [Reston, Va.?]
Language: eng
Format: Microform
Subjects: Geology, Stratigraphic -- Precambrian.; Shields (Geology) -- United States.
Notes: Distributed to depository libraries in microfiche.

Bibliography: p. 11-16.

Microfiche. [Denver, Colo. : U.S. Dept. of the Interior, Geological Survey, 1986?]. 2 microfiches ; 11 x 15 cm.