TY - BOOK AU - Books,Kenneth G. ED - United States TI - Paleomagnetism of some Lake Superior Keweenawan rocks U1 - 538.7 PY - 1972///. CY - Washington: PB - United States Government Printing Office, KW - Paleomagnetism KW - Michigan KW - Keweenaw Peninsula KW - Precambrian N1 - Includes bibliographical references (p. 40-42) N2 - Remanent magnetization directions for lower and middle Keweenawan rocks fall into three groups that have their polarities alternately normal, reversed and normal ER -