Hemming, S. R. <br/><br/>
Precambrian crustal blocks in Minnesota--neodymium isotope evidence from basement and metasedimentary rocks / 
by S.R. Hemming, G.N. Hanson, and S.M. McLennan. 
 - Washington, DC :  Denver, CO :  U.S. G.P.O. :  U.S. Dept. of the Interior, U.S. Geological Survey ;  For sale by U.S. Geological Survey, Information Services,  1995. 
 - iii, 15 p. :  ill., maps ;  28 cm. 
 - Contributions to Precambrian geology of Lake Superior region ;  ch. U U.S. Geological Survey bulletin ;  1904 .
<br/><br/>Includes bibliographical references (p. 13-15). 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology, Stratigraphic--Precambrian.<br/>Samarium-neodymium dating--Minnesota.<br/>Geology--Minnesota.
<br/><br/><label>LC Class. No.: </label>QE75  QE653  / .B9 no. 1904-U