586 



INDEX. 



Page. 



ClcTeland Lake mine 395 



Cleveland hematite mine 395 



Coal Measures 10? 



Columbia School of Mines, articles hy students of.. 93-97 



Concentration of ore. (See Iron ore, concentration 

 ot^. 



Concretionary structure in quartz 390 



in ferrugnious chert 370 



in grunerite-magnetite-schist 373 



in iron oxide 376-377 



in Menominee jasper 531 



in mica-gneiss 450 



Conglomerate 134, 



227. 228, 230, 231. 235, 254, 256, 258, 266, 277, 282, 284. 292. 297. 

 40S. 409, 410, 411, 421, 424, 425, 428, 434, 436, 444, 446. 535, 556 



above granite 147 



above iron ores .... 31. 81, 89, 103, 115, II", 125-127, 131. 144 



associated with iron ore 41,67 



associated with diorite-schist 86 



associated with quartzite 88-89,94 



at base of Holyoke formation 137 



at base of Republic formation 136. 138 



at Jackson mine 37 



at Saginaw mine 115, 142 



basal. [See Basal congloraerate.) 



between Archean and Lower Marquette series . 127, 143 



between Archean and Upper Alarquette series. - 127 



between dolomite and sandstone 60 



between granite and stratified beds 122 



between Kitchi schists and Algonkian beds 162 



between Lower Marquette and Tpper Marquette 



series 144 



between Palmer gneiss and Algonkian beds 212 



between quartzite and granite 88 



described 452 



Ominii. described 235 



replaced by ore 360 



State road 305 



described 232 



in Clarksburg formation 460, 



462. 464, 468, 473, 476-480, 481-482, 483, 484 

 in Kitchi schists. (Sef Conglomeratic Kitchi 

 schista.) 



near Palmer 31 



origin of 44 



volcanic. (See Clarksburg formation and Vol- 

 canic conglomerate.) 

 (See Greenstone-conglomerate, Schist-conglom- 

 erate^ and Volcanic conglomerate.) 



Conglomeratic Kitchi shist 160 



tigureof 161 



at base of Huroniau 188 



Conglomeratic schist 153 



in Clarksburg formation 477 



Contact action, in Clarksburg series 475, 479. 480 



of greenstone - 49S-499, 513-514 



structure of amphibole in Republic greenstone, 



plate of 470 



{See Fnconformity.) 



Cooper Lake. {See Lake Cooper.) 



Copper 12,13 



black oxide of 13 



ore of 13 



Copper-bearing seriea 48. 56, 64 



and Huronian, comparison of 63 



{See Keweenawan.) 



70-71 

 67-68 



45-16 

 44-45 



Coming Lake. (See Lake Coming.) 

 Correlation of Huronian series in Lake Superior re- 

 gion .• 



of Marquette series 5' 



of I^larquetto series and Canadian Huronian 



of Marquette series and Menominee series 



of Marquette series with Horonian and Mount 



Alban series 



of Penokee series and Marqnette Huronian 



Credner, H.. on geology of the Upper Peninsola of 



Michigan 



on geology of the Marquette district 



referred to 6,71.72,532 



Crocker, referred to 94 



Crosby, on origin of jaspers and cherts 68-69 



referred to 6 



I Crystal Falls and Metropolitan iron-bearing dis- 



I tricts, monograph on 577 



I Crystalline rocks 58 



in Northern complex 150 



Crystalline schists 158. 526 



of Basement Complex 554 



described 555 



(See Schists.) 



Crystallization of Clarksburg rocks 461. 468, 473, 474, 475 



of greenstone 502 



Cunningham , "Walter, on boundaries of the Chippewa 



land district 12 



referred to 6 



D. 

 Daddow, S. H., with Benjamin Bannan. on deposition 



of Marquette ores 43-44 



Daliba (Phenix) mine 127 



Dana. J. D.. on origin and position of Marquette ores . 61, 146 



referred to 71, 72, 77 



Dawes, referred to 94 



Deer Lake 55. 74, 115, 116, 117, 121, 123, 125, 151, 160-167 



conglomerates 160 



{See Kitchi schists.) 



Dead River 9,12.13,18,23,30.85.125.161 



Death River 12 



Den udation of Archean 230, 297, 537, 555 



of Bijiki schist 417 



of Lower Marquette 311, 312, 387, 440, 531, 537, 564 



of Maniuette district 561, 562-563 



of Marquette series 572-573 



of Negaunee formation 331. 334-335 



of Upper Marquette series 402 



of TTewe slate 258 



plain of 567, 568 



See Erosion, "Weathering.) 



Dexter mine 377,378,424 



Diabase 65,66, 



98, 131, 132, 139. 148, 153, 155, 156, 157, 485, 487, 516, 572 



alteration of 140. 155, 162, 538 



in Marquette series 490-491, 494 



in Northern Complex 151,178,179-180 



intrusive in green schist 74 



in iron-bearing rocks 119 



in Marquette series 142,571-572 



in Northern Complex 555 



in Republic area 528 



olivine 507,520-521 



porphyritic 521 



quartz 507,519-520 



