277 ft. 6 in. 



Upper 

 Limestone 



Group. 



164 Dr. Wheelton Hind — The Yoredale Series. 



"■ Geo]. Yorks.," ii, a measured section of the beds on tlie west flank 

 of Great Whernside, as follows : — 



ft. in. 



Bearing grit 100 



[ Plate 84 



Sharp, liard limestone ... ... ... 6 



Parting 



Light- coloured limestone 9 



Parting 



Light-coloured limestone 36 



Parting 



Light- coloured limestone ... ... ... 60 



Plate 4 6 



^ Dark -coloured limestone ... ... ... 78 



Limestones and some gritstones and plate ..'. 210 



It will be noted that the figures given of liis Upper Limestone 

 Group total up to 277 ft. 6 in., so that the partings are so 

 thin as to be practically neglected, and the only bed of shale of 

 any measurable size, 4 ft. 6 in., which might have served as 

 a base-line, is not so used, but apparently hypothetical lines are 

 chosen for the subdivision. 



Tracing the beds to Starbottom and Bishopdale, the shale beds 

 gradually thicken to the north-west, and beds of sandstones become 

 intercalated with them ; and this series of beds, which measures 

 277 ft. 6 in. at Great Whernside, is increased to 510 feet at Starbottom. 



If the Carboniferous succession be examined on the western side of 

 the Pennine anticlinal, the first indication of any limestone between 

 the main mass and the Millstone Grit is to be seen in the Outside 

 Pastures east of Lancliffe Scar, between that locality and Malham 

 Tarn. This patch of ground is much faulted, but a bed of dark 

 limestone, with a low dip, is seen in the shales of the brooks, 

 and it forms a feature in Black Hill, which is capped with Millstone 

 Grit. It is quite possible that this bed may be the equivalent of the 

 Pendleside limestones, but if so the shales are much diminished, 

 especially between it and the limestone mass below. 



In the side of the hill below Black Hill is a patch of ground 

 where a small stream comes out at the junction of the limestone 

 and the shale below it, called Clattering Sykes. This stream 

 washes out thousands of encrinite rings and a few other fossils, 

 as Or this MicJielini, Spirifer, Productus, etc., which are left on 

 the ground. These are doubtless derived from the shale bed, which 

 holds up the water which has sunk through the thin bed of 

 limest(me, and show the continuity of the fauna of the mass of 

 limestone during the deposition of the shales. 



Three miles north of Black Hill is Penyghent, with 500 feet of 

 strata between the main mass of limestone and the Millstone Grit 

 which caps it, and in the 500 feet are no less than four beds of 

 limestone. In Ingleborough this series measures 900 feet, and on 

 Whernside 1000 feet, and the Great Scar Limestone is only about 

 600 feet thick, so that here the whole series is no thicker than the 

 Mountain Limestone of Derbyshire. 



Immediately north of the districts mentioned above is Wensleydale, 



