Online Books by
Warren C. Day
Books from the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Day, Warren C.: Great Lakes tectonic zone : revisited (U.S. G.P.O., 1993), also by P. K. Sims and Geological Survey (U.S.) (page images at HathiTrust)- Day, Warren C.: Neodymium isotopic evidence for Early Proterozoic units in the Watersmeet Gneiss Dome, northern Michigan (U.S. G.P.O., 1991), also by Karin M. Barovich, Zell E. Peterman, P. K. Sims, John Patchett, and Geological Survey (U.S.) (page images at HathiTrust)
- Day, Warren C.: A regional structural model for gold mineralization in the southern part of the Archean Superior province, United States (U.S. Dept. of the Interior, U.S. Geological Survey ;, 1992), also by P. K. Sims and Geological Survey (U.S.) (page images at HathiTrust)
- Day, Warren C.: Strategic and critical minerals in the midcontinent region, United States (U.S. Dept. of the Interior, U.S. Geological Survey ;, 1992), also by Diane E. Lane and Geological Survey (U.S.) (page images at HathiTrust)
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