1897.] ASHLEY — GEOLOGY OF ARKANSAS. 267 



quarter of section 14 is a sugar-loaf-shaped knob of novaculite 

 about 200 feet high making a conspicuous landmark, as the country 

 for a few miles in every direction is comparatively level. This may 

 be a continuation of the Haw Knob anticline, the evidence being 

 insufficient to decide the question. 



The Haw Knob Anticline. — The Haw Knob anticline is first 

 met with in a small ravine in 5 S., 23 W., about the centre of sec- 

 tion 22. Half a mile southwest it is crossed by the Amity-Caddo 

 Gap road, novaculite being exposed on either side of the road. 

 Running southwest the novaculite produces a ridge which, though 

 broken at two places, rises until at the western end, in the northeast 

 quarter of section 29, where it is nearly three hundred feet high, it 

 forks and ends abruptly. Farther west it appears to be continuous 

 with an anticline on a branch of Antoine creek in section 30 north- 

 west quarter and another anticline a mile further west in 5 S., 24 

 W., section 25, quarter of a mile north of the centre. The inter- 



FiG. 19. — Section across a stream tohuvv- 

 ing an anticline. 



mediate structure, however, is too broken to allow of direct con- 

 nection being traced. 



This structure seems to show that Pine mountain, running east 

 and west through the centre of 5 S., 24 W., is synclinal in its 

 structure. 



Minor Anticlines. — Between the Haw Knob and Amity anticlines 

 the structure seems to be a syncline with the layers near the surface 

 crumpled into a number of small folds. Along the Amity-Caddo 

 Gap road in 5 S., 23 W., section 27 and 22, several anticlines are 

 exposed. On the Caddo, in 5 S., 23 W., section 13, two overturns 

 are exposed, one on the east bank close to where the Caddo crosses 

 the south section line of section 13, and the other on the western 

 side at the mouth of a small drain a little below where the Caddo 

 crosses the west section line of section 13. The latter fold is a gap- 

 ing anticline along which the stream flows. Fig. 19 shows a section 



