INDEX. 



463 



Vermilion Lake, silver-bearing rocksnear _ 67 



slate and jasper banding near 178 



Soudan formation at 173 



Stuntz conglomerate at Hi 



succession of rocks at ___ 79-80 



topography and geology at, relations of. . . 432-433, 435 

 Upper Keewatin rocks at 11^120 



Vermilion gi'oup, relations of 87,91-92 



stratigrapMc place and thickness of.. 89 



Vermilion iron range, explanation of use of term.. 34 



Vermilion moraine, extent and general features 



of 426-429 



map slioTving 427 



Vermilion range, geology of 111-112 



Vermilion River. See Pike River. 



Volcanic activity, periods of 437-447 



Walcott, C. D., cited on Cambrian Sea transgression 



in North America 445 



Watab granite, age of 76 



"Water power in the district 42-43 



Weidman, Samuel, cited on ellipsoidal structure in 



"Wisconsin rocks _ 150 



West Gull Lake, glacial deposits near 428 



granite and greenstone at _ 274 



greenstone-conglomerate contact at 324 



map showing exposures at 272 



rocks at _ 271-273 



West Seagull Lake, conglomerate and syenite at... 86 



granite at _ 115 



West Two Rivers, conglomerate at 292-293 



White Iron gneiss, stratigraphic place of 89 



White Iron Lake, granite at 353-354 



granitoid and gneissoid rocks at 87 



greenstones near 118 



"Whitewood Lake. See Basswood Lake. 

 "Whittlesey, Charles, cited on geology of the dis- 

 trict 6S,70 



Willis, Bailey, cited on succession and structure in 



part of Vermilion district 79-80 



work in district done by . , 29-30, 214 



Willmott, A. B., cited on ellipsoidal striicture in 



Lake Superior rocks 150 



work in district done by •. 125 



Winchell, Alexander, citation from, on Archean 



rocks of Minnesota 95-96 



on conglomerates 85-86 , 94 



on geology of northeastern Minnesota. 81-82, 85-89 



on granite of Saganaga Lake 258, 265 



on jasper at TownlineLake 310 



on muscovado 343 



on schist and granite at Burntside Lake, re- 

 lations of ■. 158 



on succession of terranes in northeastern 



Minnesota 88-89 



on uncomf or mities in Vermilion district 85-89 



Winchell, H. V., citation from, on granite of Sagan- 

 aga Lake. ._ 265,268 



on inclusions of ii'on-bearing formation in 



greenstones _ 197 



on iron-bearing rocks of Gunflint forma- 

 tion 385 



on iron oxide bodies in Duluth gabbro 420 



on iron region of Minnesota 93 



on muscovado 343 



on Saganaga syenite 101 



Winchell, N, H., citation from, on Archean 



rocks... _ 70 



on arkoses of Saganaga Lake 270 



on basalt, ellipsoidal, in Minnesota _ 145 



on conglomerate of Ogishke Muncie Lake.. 72, 

 304,321 



on copper-bearing series 72 



on crystalline rocks of Minnesota 106-107 



on Dulutii gabbro 401,408 



on Ely greenstones, origin of 154-155 



on eruptive rocks of Minnesota 94 



on geology of Minnesota 70,71-73,76-77, 



82-85, 90-92, 94. 100-101, 104, 106-107, 113-114, 117-125 



on Giants and Mesabi ranges 1 _ 35 



on glacial lakes 127,430 



on gold-bearing quartz at Long Lake 164 



on great gabbro 100-101 



on iron ore at A^ermilion Lake 69, 76 



on iron ores of Gunflint beds... 385 



on Kawishiwin agglomerate 104 



on Mesabi and Giants ranges 35 



on metamorphism of slates to schist 296 



on Ogishke conglomerate and Ely gi-een- 



stone, contact of _. 304 



on schists and granites at Burntside 



Lake 158 



on Snowbank granite, origin of 363 



on spherulitic mottling of Ely greenstones . 142 



on structural geology of Minnesota 117-125 



maps, geologic, collected and pxiblished 



by-. 127 



Winchell, N. H. and H. V., citation from, on rocks 



of the Biwabik formation 378 



on ii'on ores of Minnesota 94r-95. 



96-97, 101-103, 189-190, 232 

 Winchell, N". H., Grant, U. S., and Elftman, A. H., 

 report prepared by, on geology of the 



Vermilion district 117 



Wind Lake, Agawa formation near. 325, 326, 329, 330, 333-335 



conglomeratic rock at 170-171 



green schist near 170 



Winten, industries of 20 



location and population of , 53 



Wonder Island, conglomerate at 85-86 



Z. 



Zenith iron mine, reference to 217 



o 



