| | Report (issue) | R-'O CKS AND MINERALS FOR THE COLLECTOR Ann P. Sabina Sudbury to Winnipeg I.I Energy, Mines and Resources...Resources Canada E:nergie, Mines et Ressourees Canada Canada THE ENERGY OF OUR RESOURCES THE POWER...OUR IDEAS COVER Left: Amethyst - Thunder Bay, Ontario. Specimen measures 4.5 cm across the base. National...50263. GSC 204977-1 Right: Gypsum (selenite) - Red River Floodway, Winnipeg, Manitoba. Specimen measures...204971-1 Geological Survey of Canada Miscellaneous Report 49 ROCKS AND MINERALS FOR THE COLLECTOR Sudbury | | | Book | 37 39 CHAPTER 3 THE E ARLY EARTH A D THE ARCHEAN ROCK R ECORD 3-1. 3-2. 3-3. by W. Gary Ernst Introduction...Introduction The H adean Earth The Archean Rock Record and Inferred P hysical Conditions 43 46 47 49 50...Superior Prol'i11ce. Canada l'elloll'k11ife Supergroup, Slave Prori11ce, Canada Bulcrwayan Group. B11lawa_...Sceeprock Group, Quecico Belt, Superior Prot'i11ce, Canada Ventersdorp Supergroup. South Africa Fortescue...G EOGRAPHI C AN D G EO LOGIC D ATA FOR PROCESSED ROCK SAlVIPLES by Malcolm R. Walter, Hans J. Hofmann |
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