INDEX. 



589 



Folding of Clarksburg formation 401, 46;), 48 



of diovite schists 86 



of ferruginous chert 380 



at Starwest mine, figure of 334 



of ferruginous slate interlaminated with si'his- 



tose greenstone, figare of 332 



of Goodrich quartzite 410^11, 427, 428, 431 



plate of 338 



of grunerite-magnetito-scbiat 434 



of hematite 388 



of interbedded greenstone and sediment 515-516 



of Ishpeming formation 421 



of jaspilite 356, 358, 362, 371, 380, 386, 550 



plate of 336 



of Kona dolomite 242,243,255,256 



of Lower Marquette of Republic troagh 533 



of Marquette district 2,332,537,562-563,566-571 



of Mesnard quartzite 222,230,233,234,236,237,238 



of Michigamme formation 445,456 



of Negaunee formation 332, 



333, 335, 338, 379, 383, 384, 385, 431 



of Negaunee jasper 430 



of Q uartzite series 54-55, 86 



of Republic trougb 525, 538-541, 549 



of Siamo slate 315,326,327,395,407 



figure of 315 



plate of 570 



of slate 306,312 



of Upper Marquette time 402.419 



of Wewe slate '•'57, 



258, 271, 272, 273, 274, 275, 277, 278, 281, 316 

 Poliation. (See Cleavage; Fissility; Schistosity.) 

 roster, J. W. 



on geology of Marquette district 23-24 



referred to 0,16.17,38,39,40, 



41, 43, 44, 46, 47, 48, 52, 56, 60, 64, 71, 72, 76, 77, 79, 99, 113, 125 

 (See Whitney and Foster.) 



on Azoic system 26-27, 29-30, 32-33 



on general geology of Upper Peninsula of 



Michigan 27-34 



on geology of M.arquette district 24-26, 27-34 



on occurrence and origin of iron ores 31-34 



on systems of elevation in Korth America. . 26 



Foster mine 45, 383 



Fracture and flowage, zone of. {Sec Zom- of frac- 

 ture and flowage.) 



Fragmental aggregate in biotite-granite 172 



Fragmental rocks 58, 133 



of Huronian series 65 



volcanic 171 



(See a!«o Tuffs ; Asbes; Volcanic-breccias.) 



Fragmental series 41 



Fundamental Complex. (See Archean Basement Complex.) 



Gabbro 155,156 



Galena 13 



Garnet, alteration of 300,421 



chlorite pseudoraorpbs of 62, 94 



development by greenstone intrusion 369 



of biotite-slate 384 



of chlorite-achist -^21 



of conglomerate 434, 478, 479, 483, 486 



of contact phases of cblorite-schist 513 



of feldspathic biotite-schist 197 



of greenstone 503 



rage. 



(Inrnct of griinerite-magnetite-rock 387 



of griinerite-magnetite-scbist. - . 293, :169, 391. 419, 423, 444 



of griineritc-scbist 513-514 



of iron-bearing formation 529 



of iron ore 364, 374 



of jaspilite 390 



of Marquette formations 574 



of mica-schist 444, 447, 449, 456, 457, 459 



of mice-slate 430 



of quartz-schist 293 



of qiLiitzite 300, 313, 422, 529 



of slate 92 



Gariletiferona green schist 513-514 



Geologic.ll Society of America 141-142 



Geological Society of London 135 



Geological Survey of Michigan. iSee Michigan Geo- 

 logical Survey.) 



Georgian Bay 55 



Gibbon mine 89 



Gilmore mine 509 



Glaciation of grunerite-magnetite-schiat 389 



of Archean 526 



of Ishpeming formation 429 



Glass fragments in Clarksburg tufla 474-475 



in matrix of pebbles of Kitcbi acbiats 164 



Gneiss 3, 40, 230, 526, 527, 534 



aasociated with granite 83 



of Baaement Complex 98, 134, 554 



described 555 



of Cascade formation 138 



of granite-conglomerate 557 



of Grenville series, origin of 201 



of Northern Complex 169,178,188-189 



of Southern Complex 190, 192, 194, 193, 209-211 



origin and age of 101, 104, 147 



relations to greenstone 120-121 



relations to sedimentary beds, Epidote 103 



(See Gneissoid granite. Granite-gneiss, Horn- 

 blende-gneiss, Mica-gneiss, and Palmer gneiss.) 



Gneisaoid granite 259 



described' 169-176,209-211 



in isolated areaa 220 



in Northern Complex 132, 153, 169-176, 188 



in Southern Complex 190, 192, 194, 195, 209-211 



intrusive in schist 193 



figureof 209 



river course through, plate of 170 



(See Biotite-granite and Muscovite-granite.) 



Goetbite 90 



Goetz, G. W., on analyses of iron ores 129 



Gold 13 



Goodrich mine 89,125,126, 



142, 299, 332, 335, 383, 384, 396, 409, 430, 431, 432, 560 



Goodrich quartzite 288,311,332,333,360,363,366,394,402, 



406, 417, 419, 429, 529, 535, 540, 541, 542. 554, 565, 569 

 and Bijiki schist, gradation between, plate of. . - 412 

 contact with plicated Negaunee jaspilite, figures 



of- 



335 



deposition of 563-564 



described 409-416 



dip of 539 



in Lake Superior mine, plate of 338 



relations to Ajibik quartzite 310, 409, 411 



relations to Baaement Complex 411, 413, 536 



relations to Bijiki schist 411,419 



relations to Clarksburg formation 461, 463 



