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A New Stratigraphic Unit in the Piedmont of Northeastern Virginia
出版U.S. Government Printing Office, 1971
URLhttp://books.google.com.hk/books?id=kuTCVxR0VokC&hl=&source=gbs_api
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註釋Description of a sequence of felsic, intermediate, and mafic metavolcanic and metasedimentary rocks.