

Lower 

 Cambrian 



Middle 

 Cambrian 



1 



Upper 

 Cambrian 



Shan-tung 



c 



Shen-si 



Liau-tung 



A'nla fra^^'.lii 







X 







X 





A. sterope 







X 







X 





A. woodi 







X 







X 





Schizophyta 

















Cirvanella 



X 







X 









a, 



O 

 v. 



O 



fcuO \ 



c 



The sequence of the Cambrian rocks in the Chang-hsia district in prov. 

 Shan-tung will be here c'ted as the tj'pe of the Cambrian formation prevailing 

 in the laad lying north of the Tsin-ling-shan ; according to E. Blackwelder,'^' 

 it is as follows : 



Tsi-nan dolomite — -Ordovician. 



Chau-mi-tien*^ limestone ; a complex, iSo m. thick and composed of blue 

 gray hmestone with intraformational conglomerate at various 

 horizons. 



Ku-shan^' shale ; a 15 m. thick complex of green shale and slabby limestone. 

 Chang -hia limestone ; a complex 150 m. thick and composed of gray 

 limestone mottled with ocher in its upper, dark gray ool'tlc lime- 

 stone in the middle and olive gray oolitic limestone in the lower 

 part. 



Man-to"^ shale ; a complex 150 m. ihick and composed of (upper) brown 

 shale with thin gray limestones and (lower) buff and gray shales 

 with gray and buff earthy limestone and black slabby limestone. 

 Tai-shan complex — ■Arclican. 



1) Blackvvelder; Petrography in Research in China, Vol. IL, p. 379. 1907. 



2) Blackwelder in Research in China, Vol. L, i. p. 24 et seq. 



3) Kiu-lung = ;?Ltl 



4) Chau-mi-tien-='jti>^0 



5) Ku-shan = g(Ij 



6) Man-to = If 5g 



