Crystalline rocks of the Potomac River gorge near Washington, D.C.
By: by John C. Reed, Jr., and Janice Jolly.
Contributors: Jolly, Janice L. W.
Series: Contributions to general geology; Geological Survey professional paper -- 414-H
Publisher: U.S. Govt. Print. Off.
Published: 1963
Place of publication: Washington
Language: eng
Number of pages: 16
Subjects: Geology, Stratigraphic -- Paleozoic.; Rocks, Crystalline -- Potomac River.; Geology, Structural -- Potomac River.; Gorges -- Potomac River.
Notes: Two folded leaves of maps in pocket.

"A description of the rocks exposed in the gorge of the Potomac River below Great Falls, with a discussion of their structural and metamorphic history."

Includes bibliographical references (p. 16).