CONTENTS. VII 



Page. 



Chapter VIII — Continued. 

 (Sectiiiu IV — (JcintinutMl. 



Geographical (listril)utrii)n, )>. 3S7. SiirroiiiiiIinK rocks, j). 38S. Continuation of the belt 

 east and wcst,i>. HXX. St rue tun- oC thi' licit, ]i. ;W!t. (icncral i)etn)f;raidiical character, 

 p. 390. Minf;lcd <Vai;uu'ntal and Udufragmental sediments, )>. 3itl. Coarsely frag- 

 meutal rocks, ]>. 3!tl. Taliulatiim of petrographicai observations, ]i. 3il(!. 



Section V.— The (jlrecnstones 410 



The main area, p. 410. The area in sections 20, 29, and 39, town.ship 47 N., range 43 

 W., Michigan, p. 414. The area in sections 13, 24, 14, and 15, township 47 N., 

 range 44 VV., Michigan, p. 41."i. 



Section VI. - Stratigra])liy 419 



Lithological evidence as to equivalence with the main Peuokee area, p. 419. Strati- 

 graphical evidence as to equivalence with the main Penokee area, p. 420. Relations 

 of the belts of the Eastern area to one another, p. 423. Great width of parts of the 

 Eastern area, p. 423. The southern dips, \). 426. Se<iuence of events, p. 428. Min- 

 gled fragmental and uoufragmentai sediments, p. 432. Sununary, ]). 433. 



Chaptkr IX. — Genekal Geoi-ocsy of the District 437 



Section 1. — Flexures and faults 437 



Curving of the layers, p. 437. Fault at Bad river, p. 43H. Fault at Potato river, \i. 

 440. Fault in the Kastern area, p. 441. 



• Section II. — Structure 441 



The Southern Complex, ]>. 441. The Cherty limestone and Qnartz-slate members, p. 

 443. Unconformity between the Southern complex and the overlying Cherty Lime- 

 stone and Quartz-slate, p. 444. Unemiformity between the Cherty limestone and the 

 Penokee series proper, p. 4.^4. The Iron-bearing and Upper shite members, p. 455. 

 The unconformity at the liase of the Keweenaw series, p. 45(). The Eastern sand- 

 stone and the unconformity at its liase, )>. 4G1. R^snnn; of geological bi.story, p. 

 463. Why the district is given a separate memoir, p. 466. Depth ami metamoi-- 

 phism, p. 467. 



Section III. — Correlatiou 468 



E(iuivalency of Penokee series j)roper with Animikie series, )i. 468. Ei|nivalency of 

 Penokee and Manjuette series, p. 470. Comparisim with other series, ]i. 472. Table 

 showing relations of Peuokee succession to that of other Lake Suiierior districts, 

 p. 473. 



