44 



RESEARCH IN CHINA. 



I 234 56789 10 II 12 13 i+ 



FIG. 4 (Blackwelder). Ch'ang-hia, Shan-tung. Section of Cambrian strata in the north side of Man-t'o 

 butte. i =red granite; 2 =soft yellow shales; 3= buff earthy limestone; 4= gray and buff calcareous 

 shales; 5 = syenite-porphyry sheet; 6= greenish shale; 7= earthy limestone; 8 = maroon shale; 9 = 

 buff earthy limestone; 10 = white calcareous shale; n=red shale; 12 = olive-gray limestone; 13= dark 

 shales; 14 = gray limestone; 15 = maroon shale; 16 = gray limestone; 1 7 = brown and gray shales ; 18 = 

 gray limestone; 19 = brown shale; 20 = thin-bedded, dark oolite and greenish shale; 21 =gray limestone 

 with black oolitic bodies. This scale of thickness is indicated in feet. 



FIG. 5 (Blackwelder). Yen-chuaug, Shan-tung. Section of Cambrian strata in the western part of the Kiu- 

 lung-shan. i =gray gneiss; 2=bright green shale; 3=gray earthy limestone; 4 = dense blue-black 

 limestone; 5= brown and yellow shale; 6 = blue-gray limestone; 7=shaly gray limestone; 8= dense 

 blue-black limestone; 9 = yellow shale; 10 = gray limestone and shale; n =slaty black limestone; 12 = 

 chocolate slate; I3=brown shaly sandstone; I4 = yellow shale; is=buff earthy limestone; i6 = red 

 shale. (Section continued in fig. 6.) 



1718 19 ZO 21 



z 25 Z6 27 28 29 3O~ 31 ///25 26 27 28 29 30 31 32 



FIG. 6. I7=black limestone; i8=yellow shale; 19 = purple-gray limestone; 2O = gray limestone; 21 = 

 yellow shale and thin limestone; 22 =red shale and thin limestcne: 23 = green-gray limestone; 24 = red 

 and yellow shale; 25=maroon shale; 26 = greenish conglomeritic limestone; 27=brown shale; 28 = 

 buff earthy limestone; 29 = olive-green shale; 30 = cross-bedded green-gray limestone; 31 =olive shale; 

 32 =gray sandy limestone; 33 =hard dark oolite; 34 = light and dark gray limestone; 35 =green shale; 

 36 = dense gray limestone; 37= green nodular shale and thin limestone; 38 = massive dark limestone. 

 The scale of thickness of figures 5 and 6 is iudicated in feet. 



