466 MARIUS R. CAMPBELL 



a height of 450 feet there is a small shaly interval, which is 

 overlain by 60 or 70 feet of heavy conglomerate. 



In comparing sections 3 and 4, it is apparent that the great 

 increase in thickness of the sandy series at the mouth of Big 

 Sycamore Creek is not accomplished by the swelling-out of the 

 Charleston sandstone proper, but by the addition to its upper 

 part of about 200 feet of coarse sandstones and conglomerates, 

 which are feebly represented in the Blue Creek section by thin 

 and independent beds of conglomerate, and are not represented 

 at all in the Charleston section by coarse material. If the three 

 sections given above stood alone, the identity of the beds might 

 be open to question, but in the areal work a score or more of 

 intermediate sections were obtained which make the transition 

 complete and incontestible. 



From Big Sycamore Creek to Clay exposures are good along 

 the line of the railroad, and continuous tracing proves that the 

 coal bed which is at railroad level opposite Clay is the same as 

 the coal shown in section No. 4, 125 feet above railroad grade, 

 and occurs only a short distance below the coal bed which is 

 mined between Clendenin and Queen Shoal. 



Section No.*5 was obtained on the road which climbs to the 

 upland back of Clay. Although broken by a few small shale 

 intervals the section consists generally of coarse sandstones for 

 a height of about 380 feet above railroad grade. If the section 

 is placed according to the coal horizon, there is a very close 

 agreement with the Big Sycamore section both in total thick- 

 ness and in the detail of the beds. 



Dr. White in discussing the coal outcrops along Elk River ^ 

 correlates the Clendenin coal with a small coal bed 375 feet 

 above Clay, or in other words about the top of section No. 5. 

 It seems probable that this error in correlation is due to the 

 assumption that the observed rise of the beds between Clendenin 

 and Queen Shoal is continued eastward to Clay. In that case 

 it is probable that the Clendenin coal would appear near the 

 top of the sandstone series, but the eastward rise is an assump- 

 tion which is not in accord with the facts. A broad anticline in 



' Op. ciL, p. 125. 



