INDEX. 



•1;-j7 



Logan on "crowning overflow," 381, 382. 



East Coast Keweenawan, 347, 348. 



Huronian, 401. 



greenstones, Huronian, 389. 



Kaministiquia River slates, 374. 



Keweenaw Series, age of, 13, 341, 344. 



Michipicoten Island, "J4, 313. 



Nipigon Group, 157. 



Original Huronian, 386-388. 



Pio Eiver Huronian, 401. 



— , Publications of, 15, 16, 17. 20. 

 — . on Thunder Bay, 330, 332. 



, sandstono, 332. 



, schists, 390, 397. 



, schists west of, 374. 



Lone Rock, Nonesuch shale belt near, 223. 

 Lower Division, Koweenaw Series, 152, 154-160. 



, on Bad River, 158. 



, Gabbros of, 155. 



Black and Nipigon Bays, 160. 



Douglas County Copper Range, 159. 



Isle Royale, 159. 



Keweenaw Point, 157,158. 



Mamainse, 160. 



Michipicoten Island, 160. 



Minnesota Coast, 266. 



. Gabbros of, 156. 



Montreal River, 158. 



, -Nipigon sandstone of, 157. 



, on Ontonagon River, 158. 



, in Saint Croix Valley. 159. 



, Thickness of, 157-160. 



Lucille Islands, 330. 



, Animikie Group at, 369. 



, Keweenawan diabase on, 369. 



Macfarlane, T., 6. 



— , on Animikie Group, 385. 



"Crowning Overflow," 382. 



East Coast Keweenawan, 347, 348. 



Mamainse, 160, 348. 



Michipicoten Island and its rocks, 85, 86, 87, 93, 112, 160, 



341-346, 436, 437. 



Origin of traps, 10. 



felsites, 12. 



— , Publications of, 20, 23. 



— on Silver Islet, 378. 



Thunder Bay rooks, 332, 377-379, 405. 



Magnetite of augite-syenite, 134. 



diabase-porphyrite, 78, 79. 



olivine-diabase, 70. 



olivine-free diabase, 63. 



orthoclase-gabbro, 51. 



orthoclase-free gabbro, 41. 



Main Trap Range, 165, 187, 188, 198, 201, 208, 229, 414. 



Mamainse, 160, 348, 415. 



-, Dikes of, 143. 



Manitou Island, Outer Conglomerate on, 179. 



, Kind of strata on, 414. 



Manitou River, Temperance River Beds on, 324, 328. 



Marcou, J., 5,11. 



— , Publications of, 16, 17. 



Marquette, 414, 415. 



Marvine, A. R., 5, 7, 10, 21, 52, 163, 416. 



— on amygdaloids, origin of, 11. 



Calumet Conglomerate, 195. 



Eagle River Section, 167-178. 



rocks of Houghton and Keweenaw Cos., 188. 



Mather, \v. w. on Stannard's [took, 197. 



Maw-ske quaw caw maw i 

 322. 



, Orthoolaso-gabbro of, - 



-0,381, 

 Mountain, 374. 

 MoKlnlay, R.,8, 



p, 278. 



Duluth Qroo] 



Snaka and Kettle SI 



Synch Range, 300-366. 



— . Bee Campbell, Chaw ones. 



I, 187, 188. 

 Mendota i -i, 184. 



of Pompolly. Set l> — , (An©. 



grained). 



Macfarlane, 85, 87, 93. 



Menominee Region. See Huronian, Mart] u 



aee. 

 Mesabi Range, Animikie group at, 382-384. 



— , A . I i . i 



.Granite of, 383. 



.Schists of, 398,399. 



Metasoniatic Ii, ■ 



Pumpelly. 

 Michigan, Keweenaw s.-i i. a in, Chap VI. 



on Keweenaw Point, 163-198. 



from Portage Lake to Ontonagon River, 198-201. 



on the South Range, 



. &e Bohemian R 



S&ndeto] 



ti.m, Sa*th Range. 

 Michigan, Geological Survi ,73,80,91,188,188, 



190, 191, 195, 197, 247, 351, 352, 359, 360, 406. 

 Michipicoten Bight, 347, 415. 

 Michipicoten Island and vicinity, 341-346, 415. 



, Amygdaloids of, 345. 



, Area of Keweenaw Series on, 27. 



, Diabases of, 343. 



, Diabase-porphyrite of, 78, 80, B5, 



, Dip of rocks on, 343. 



, Felsite of, 103, 112, 343, 346. 



, Lower Division on, 160. 



, Macfarlane's specimens from, described, 85, 80, 87, 93, 



112,342-346. 



.Peculiar "breccias" of, 430, 437. 



, Quartz-porphyry of, 93, 112, 316. 



.Relation of acid .md basic rocks of, 433,434. 



, Stratification on, 341. 



, Thickness of rocks of, 342. 



Michipicoten River, Huronian rocks of, 400. 

 Microfelsite of Kosenbusch, 96. 

 Middle River, Rocks of, 256. 

 Mineral River, Non- 

 Minnesota, Area of Keweenaw Series in, 27. 

 — , Authorities on, 262. 

 — , Conrse of rock-belts in, 265. 

 —.Dikes of, 143, 264, 278, 283, 293, 294, 301, 306, 307, 320-323, 32», 



334. 

 — , Duluth to French River, 264. 

 — , French River to Split Rock River, 264. 

 — , General structure of, 140, 265. 

 — , Lakeward dip of rocks of, 141. 

 — , Lake Superior coast of, 262-329. 

 _, Mesabi Range, 382-3S4, 398. 399. 

 — , Snake and Kettle River District. 241-246. 

 —.Split Rock River to Gran. 1 Portagi Bay, 264,266. 



