Bulletin, Ausgabe 947

50 feet adit Alaska altitude average azurite Baranof Island beds Blashke Islands Bohemia Basin bornite calcite camp chalcocite chalcopyrite Chichagof Island Chitina Valley Chitistone limestone Chitistone River chromite Clear Creek contains Copper Creek copper deposits copper minerals covellite diamond-drill dikes drill hole dunite east exposed fault feet long feet thick fractures gabbro Geological Survey Glacier Creek grade graywacke greenstone gulch hornblende hornblendite hornfels inches intrusive Kane Peak Kennecott Kuskulana lens Lituya Bay malachite material Mertie miles Moffit molybdenite molybdenite deposits Mount Burnett Muskeg Muskeg body nickel-copper deposits Nikolai greenstone Nizina district norite open cuts outcrop percent of copper percent of nickel portal prospect pyrite pyroxenite pyrrhotite quartz diorite Radovan Red Bluff Bay Rua Cove schist shear zone southeastern Alaska strike sulfide minerals sulfide-bearing surface Survey Bull tonnage tons trail U. S. Geol ultrabasic rocks underground vein wehrlite winze Yakobi Island