1S07.J ASHLEY — GEOLOGY OF ARKANSAS. 289 



The anticline at this gap shows nicely ; the section as given on 

 PL i begins with the top of the black novaculite and shale. The 

 section is as follows : 



FEET. 



Sandstone with some shale (poor exposure) .... 300 



Sandstone with thin layers of shale 400 



Sandstone 365 



Grit or conglomerate 25 



Sandstone 60 



Shaly sandstone in thin layers 140 



Sandstone, soft yellow where weathered 130 



Shale 30 



Black novaculite and shale 400 



White novaculite 400 



Shale and sandstone base 



Total 2450 



The thickness of the Carboniferous in this section is about 1600 

 feet. 



Section V. — Section v is on Little Missouri river, in 5 S., 27 W., 

 section 23, on the north and south stretch in the middle of the sec- 

 tion. The section obtained was : 



FEET. 



Sandstone, all that showed (poor exposure) 185 



Sandstone 370 



Shaly sandstone thin bedded 40 



Sandstone 10 



Shale 15 



Sandstone 5 



Shaly sandstone thin bedded, with some hard 



sandstone 130 



Sandstone 30 



Total 785 



This section is well exposed along the river bank, and is accurate 

 as far as it goes. The dip at the north end is high, but quickly 

 becomes low. 



Section VI. — Section vi is on Little Missouri river, beginning at 

 Pine mountain, in 5 S., 27 W., section 26, and running south to 



