INDEX. 



585 



Pago. 



Chert, hcnmtitic, from Negamiec, plate of 348, 300 



of congloiiieratt) 226, 230, 311, 360, 411, 420, 424, 429 



of dolomite 244,240,248,250 



of ferruginous slate .-. 344 



of Lower Marquette series 130,131 



of quartz-conglomerate 432 



of quartzite 412, 415 



of slate 317 



of Upper Marquette series 127 



origiuof 08-09,106-109 



veins 248 



in Northern Complex 186 



in slate 200 



(See Veins of chert.) 

 (See Ferruginous chert, Hematitic chert, .Jasper, 

 Silica, Quartz.) 



Chert-hroecia 269,273 



(Icscriheil 248 



Chert-conglomerate 429,504 



Chcrty dolomite 214 



Cherty iron carbonate. {See Cherty siderite. ) 



Cherty siderite 336 



alteration of 337, 401-403 



analyses of 337 



plate of 340 



Cherty siderite-slate, described 360-308 



Cherty silica of siderite-slate 367 



Cherty quartz of gray wacke 229, 230 



of jaspilite 371 



of qiiartz.achist 239 



Cherty quartzite 228,239,291,300,306 



and dolomite, iiseudo-unconformity between, fig- 

 ure of 



243 



of Mcsnard formation 227 



Chicago and Northweatorn Eailroad 76,473,515,517 



Chippewa Exploration 537 



Chippewa Land District 12,27 



Chippewa mine 53, 54. 439 



Chlorite from amphibole 388 



from feldspar 265, 



290, 302, 318, 319, 327-328, 433, 448, 449, 450, 458 



from garnet 50,62,300 



from griinerite 423,436 



of biotite-granite, 172 



of biotite-schiat 302 



of chlorite-schist 509 



of conglomerate 264 



of gray wacko 265, 304, 318-319, 453 



of greenstone 474, 494, 496, 499 



of greenstone-schist 205 



of griinerite-magnetites-chist 369, 390, 391 



of iron ore 374, 399, 434, 435, 440 



of Kitchischist 164, 165-166 



of in ica-gneiss 416 



of mica-schist 320,324,410,444 



of uiica-slate 455 



of Mona schist 155,156,157,158 



of novaculite 304 



of ore and .jasper conglomerate 426 



of recompoaed ore 411 



of quartz-schist 293, 322, 416 



of quartzite 290, 300, 302, 303, 304, 313, 415, 421, 434, 529 



of achist-congloracrate 442 



of slate 292, 304, 320, 448 



of talcoso schist 510 



pseudomorphous after garnet 02, 94, 421 



Pago. 



Chlorite-schist 1,37,204,289,302, 



490, 494, 500, 503, 500, .'i07, 508, 509, 510, 511, 513-514, 515, 517, 523 



associated with iron ore 131. 140 



contact mctamorphism produced bj' 513 



contact with iron ores 72 



dikes 181,421 



origin of 103-104 



Chlorite-slato 436 



Chloritic quartzite 392 



Chloritic rock 116 



Chloritic 8<;hist 49 



at Spurr mine 62 



in Marquette series 488 



Chloritoid, analysis of, referred to 140 



including quartz and feldspar 459 



of arkose 129 



of Clarksburg hornblende-schist 476 



of conglomerate 129 



of greenstone 504-505, 509-510 



of iron ore 435 



of Marquette formations 574 



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



of Palmer gneiss 215, 216 



of phyllite-schist 148 



of quartzite 300 



Chocolate quarry 55 



Chocolate Hivcr 9,11,12.13,14,22,24,59 



C'hocolay Kiver 237 



Claassen, Edo., on orthoclase crystals in hematite. . . 97 



Clarksburg 4, 



142, 440, 455, 456, 460, 462, 463, 464, 484, 485, 564, 571 



Clarksburg formation 408, 435, 454-455, 554, 564-505 



composition of 460 



con glomcrates in 476, 480 



deposition of 464 



described 460-484 



folding of 463 



gradation types between sediments and tuffs in. 472-473 



origin of 480-481 



relations to Goodrich quartzite 461-463 



relations to Michigamme slato 461-463 



sediments in 468-472 



tuflsin 470,473-479 



volcauics of 447 



Clasolito, term proposed 139 



Clay, analysis of, referred to 140 



Clay-slate lU-11, 50, 67, 367 



Cleavage in argillaceous beds 255 



in conglomerate 437 



in gray wacko 207, 316, 446 



in griinerite and hornblende 388 



in iron-bearing member 532 



in Marquette formations 574 



in Michigamme formation 452 



in novaculite 267 



in slate 242,260, 



266, 267, 269. 271 , 272, 274, 275, 310, 316, 317, 325, 446, 453, 455 



figure of 243 



in Boaprock 541 



in quartz-schist 293 



passing into fisaility 317,325 



relations to bedding 315, 317. 325, 452, 455, 574 



(See Fissility, Schistosity.) 



Cleveland mine 46,89,94,97,119,142,507 



open pit of, plate of 336 



Cleveland Cliff's mine 379 



