94 :mr. l. m. paeson^s ois- the CARBO]yiFEROirs [vol. Ixxiii, 



The lower beds wholly composed of shale become interbedded with 

 thm sandy layers towards the top, and these Hnally assmne the 

 pebbly character of the lowest part of the Millstone Grrit. The 

 dip of the beds is here about 4° to the south-east. 



IV. The Eastern Ixliers. 



If we deHne the Eastern series of inliers as those occurring 

 against the Breedon Fault, two small inliers — one at King's Newton 

 north of Melbourne, where ' Pendleside ' Shales are tilted against 

 the Breedon Fault, and the other at Grace Dieu near Charnwood — 

 must be included with the larger masses of Breedon Cloud, etc., 

 although they more nearl}' resemble the rocks of the Western inliers 

 of Ticknall, etc. The remaining inliers, from Breedon-on-the-Hill 

 to Osgathorpe, possess many features in common, such as high in- 

 clination, the dense yellow dolomitic charactei" of the strata, and, 

 despite their relative barrenness, the presence of a fauna indicating 

 stratigraphical horizons in the DibunopliyUjiii} Zone. 



Breedoii-on-the-Hill. 



This hill, which forms a landmark for many miles round, is 

 made up of moderately thick-bedded dolomites, Avith some thinner 

 beds in j^laces. No interbedded shaly partings are seen, and the 

 unconformable cover of the Trias conceals any ' Pendleside ' Shales 

 that may exist west of the hill. The strike is constant — 

 about N.' 20° E. to S. 20^ W., while the angle of dip varies but 

 slightly, averaging about 46° westwards. Slight flexures occur 

 in the middle part of the sequence, but no faulting is apj^arent, 

 the inlier differing remarkably in this respect from Breedon Cloud. 

 The thickness of Carboniferous Limestone at Breedon-on-the-Hill 

 is about 850 feet^-a figure considerably greater than the 500 feet 

 mentioned in the Greological Survev Memoir, Avhich, however, 

 does not make it clear whether Breedon-on-the-Hill or Breedon 

 Cloud is meant. 1 The estimate of 850 feet is based upon measure- 

 ments in the field guided by faunal evidence, and is confirmed by 

 observations at Breedon Cloud. The great quarry-face at the 

 southern end of the hill extends at right angles to the strike, and 

 thus affords an excellent section. The beds exposed along this 

 face constitute roughly two-thirds of the total thickness of the 

 strata forming the inlier — the highei' beds being covered with grass, 

 except those at the very top of the sequence which are to be seen 

 along the western side of the hill. 



The whole of the rock exposed consists of dolomites, variable 

 both in chemical composition and in mineralogical structure. A 

 detailed subdivision of the beds, based upon either lithological or 

 palieontoloo'ical evidence, has not been found possible ; but the 

 sequence may be considered broadly to consist of four parts the 

 exact boundaries of which are not very definite. Commencing at 



' ' The Geology of the Country between Derby, Burton- on -Trent, Ashby- 

 de-la-Zouch, & Loughborough' Mem. Geol. Surv. 190.5, p. 18— Sheet No. 141. 



