﻿Vol. 66.~] LIMESTONE SOUTH OF THE CRAVEN FAULT. 549 



to make out the relationship of the strata. The dip is at a low 

 angle, almost due south-eastwards, and so there is some irregularity 

 in the anticline here, as at Owslin Barn. I obtained Syringopora 

 cf. reticulata, Goldf., Caninia aff. gigantea, Mich., and Orthotetes 

 crenistria (Phill.). 



Winterburn Chapel Quarry. — This cutting is in the hillside, 

 east of Winterburn Chapel. We are here on the northern side of 

 the anticline. 



The rocks are chiefly a blue-black limestone in fairly thin beds, 

 •extremely fissile and breaking with a splintery fracture. There are 

 very thin shaly partings between some of the limestones. The 

 bedding is remarkably well seen. The strata remind one of Bell- 

 Busk cutting, the Crags (already described), and Warrel Quarry. 

 Dip north-north-westwards at about 55° ; but there is some change 

 apparent, and the Survey officers — who probably took the dip when 

 the quarry had not its present aspect — obtained 60°. The thickness 

 exposed is about 60 feet. The fossils which I obtained are : — 



Productus pustulosus, Phill. 



Productus scahriculus, Mart. 



Productus semireticulatus, Mart. 



Productus giganteus, Mart., or a 

 ' Chonetiproductid.' 



Chonetes aff. kardrensis (Phill.). (Very 

 small, rather rectangular, and very 

 finely striated.) 



Orthotetes crenistria (Phill.). (Ke- 

 rn inding one of Warrel.) 



Aihyris aff. royssii (L'Eveille). 



Syringopora cf. reticulata, Goldf. 

 (Plentiful.) 



Syringopora gigantea, Thomson. 

 (Rare.) 



Michelinia tenuisepta (Phill.). (Com- 

 mon.) 



Michelinia cf. megastoma (Phill.). 

 (Quite common.) 



Caninia aff. subibicina, M'Coy. 

 (Rare.) 



'Caninia aff. gigantea, Mich. (Com- 

 mon.) 



Campophyllum aff. caninoides, Sibly. 

 (Rare.) 



As in all these dark limestones, the brachiopods are not readily obtained 

 •complete. 



Caninia gigantea occurs here in great profusion : I have a specimen of it 

 from this quarry, which illustrates in a remarkable manner the movement of 

 these beds one over the other. A stout well-developed coral has been broken, 

 and one part of the coral pushed up along the upper part, which shows 

 slickensiding very clearly. The broken pushed part is now cemented to the 

 upper part very firmly by a deposit of calcite, just as one often finds along 

 slickensided surfaces. 



Owslin Barn. — There are a few small exposures in the pastures 

 north-north-west of Skelda Gate, between Hetton and Winterburn. 

 Most of them are much overgrown, but it can be seen that there is 

 here some roll in the beds, and that consequently the anticline is 

 not a simple one. The only exposure worthy of the name of quarry 

 is a small cutting close to Owslin Pasture, where thinly bedded 

 limestone with shale dips north-north-westwards at a high angle. 

 There are not more than 15 or 16 feet of beds exposed at this place. 

 The beds are, however, fossiliferous, and I obtained the following 

 specimens : — 



