430 THE MARQUETTE IRON BEARING DISTRICT. 



variety of brilliantly colored pebbles and bowlders presents a beautiful 

 appearance. At no fewer than four places the actual contacts between 

 the Negaunee and Goodrich formations are seen. In places the dip of the 

 cono-lomerate is low, and on the south slope of the hills truncated banded 

 jasper may be seen, overlain, with slight discordance, by the conglomer- 

 ate. While the conglomerate is studded with waterworn bowlders of the 

 Negaunee formation, it also contains very numerous pebbles and bowlders 

 derived from the Basement Complex. Immediately adjacent to the Negau- 

 nee formation fragments of it are predominant, but a little higher up those 

 from the Basement Complex are equally abundant. The conglomerate 

 grades up in the central and northern part of the basin into a quartzite, but 

 on the north side, adjacent to the Negaunee formation, the fine-grained 

 conglomerate is again found. A short distance east of the village of 

 Palmer, again, the basal conglomei'ates and contacts between the Goodrich 

 quartzite and the Negaunee formation may be seen. Here the phenom- 

 ena are the same as at the contact in the basin just described. About a 

 mile east of Palmer, on an elevation surrounded by a swamp, are large 

 exposures of quartzite and a fine-grained conglomerate, which constitute 

 the eastern extremity of the Palmer basin. 



Goodrich-Saginaw area. — To the west, uumerous cxposures of the Goodrich 

 quartzite constitute a marked ridge, running from about one-fourth of a 

 mile north of the center of sec. 21, T. 47 N., R. 27 W., to the Fitch mine, 

 in the SE. 4 sec. 24, T. 47 N., R. 28 W. (Atlas Sheets XXIII and XXVI). 

 South of this ridge are the Lowthian, Saginaw, and Goodrich mines. At 

 all of these mines, and at the Fitch, the contacts between the Negaunee 

 and Goodrich formations may be seen. At all of them the unconformity 

 between the two is perfectly clear, and great basal conglomerates are pres- 

 ent, the debris of which is derived chiefly from the Negaunee formation. 

 For the most part the discrepancy in the folding between the Negaunee 

 and Goodrich formations is but slight, so that the break is indicated by 

 minor differences in strike and dip; but the quartzite is deposited in the 

 depressions of the irregularly eroded Negaunee formation. At the Good- 

 rich mine the Negaunee jasper is plicated, and it abuts at various angles, 

 up to perpendicularity, against the beds of the conglomerate (figs. 20 and 



