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Google圖書搜尋
Revisions of Stratigraphic Nomenclature Within the Keweenawan Supergroup of Northern Michigan
William F. Cannon
Suzanne W. Nicholson
出版
U.S. Government Printing Office
, 1992
URL
http://books.google.com.hk/books?id=JEJSAQAAMAAJ&hl=&source=gbs_api
EBook
FULL_PUBLIC_DOMAIN
註釋
A new formation name (Porcupine Volcanics) and a new group name (Bergland Group) are proposed for middle Proterozoic volcanic units in northern Michigan, and a sedimentary unit (Copper Harbor Conglomerate) is recorrelated.
