146 RESEARCH IN CHINA. 
In the Ki-chou-shan.—The section just described may be considered 
typical of the Cambrian on the south side of the Hin-chéu basin. The 
bold front of the Ki-chéu-shan affords numerous opportunities to study 
the same strata and the fossils which they contain. Not only the Cam- 
brian but the entire Sinian sequence, from the basal unconformity to the 
overlying Carboniferous, may be observed south of Ting-hiang-hién. 
NW SE 

300 FEET 


Fic. 39 (Blackwelder).—Chung-hua, Shan-si, atlas sheet B II. Lower Sinian (Cambrian) limestone and 
shales sharply flexed and overthrust by Pre-Cambrian limestones. (Section 0.5 mile, 1 kilometer, 
southwest of that represented in Fig. 31.) 
South of Chung-hua the basal Sinian limestones and shales are sharply 
flexed and overthrust by Algonkian strata (Fig. 39); but near by, on the 
east, the Man-t’o red shale lies unconformably upon the older rocks (Fig. 32). 
A faulted exposure (Fig. 40) of the Sinian occurs in the outlying 
foothills south of Han-yang. The Man-t’o and lower Ki-chéu are repre- 
sented by only a small fraction of their usual thickness and are in 
N 


Fic. 40 (Blackwelder).—Han-yang, Shan-si, atlas sheet BII. Sinian and Hu-t’o (Algonkian) limestones 
in faulted succession in the foothills of the Ki-chéu-shan 4 miles, 6.5 kilometers, south-southeast of 
Han-yang, 
turn overthrust by a dull gray saccharoidal dolomite, which is entirely 
unfamiliar. It bears little resemblance to the dense brownish limestone 
of the upper Ki-chéu, but has some features in common with members 
of the Tung-yii limestones farther east. We are therefore inclined to 
regard it as Algonkian. Pre-Cambrian red granite appears beneath the 
