32 



GEOLOGY OF EAST NOTTINGHAM. 



nearly along the dip of the Keuper.* The conglomerate was here seen 

 just before it crops out, occupying cavities in a gently sloping plane of the 

 Bunter. The pebbles of the conglomerate blended with tlie overlying 

 sandstone and marl, and the variegated beds swelled out slightly in the 

 direction of the outcrop. The accompanj-ing woodcut is from a sketch 

 taken on the spot. 



JTTNCTIOM OF KEX7PER AND TTPPZE BUMTEB, FORD STitEET, NOTTINOHAM. 



6. Thick-bedded soft browu, yellow, and light green sandstone, with red and 



gieen ftnely-himinated marls (Lower Keuper.) 

 cl. rerruRinous band (Gin.) 



c. Soft sandstone, Btreaked with green, red, and yellow. 

 b. CoEglomcrate, forming base of Lower Keuper (fu), filling eroded cavities 



in the Hunci.r if 2), '20in. 

 a. Bunter sandstone, yellow, " false-bedded," with a few pebbles. 



In this section the Keuper appears to dip to the south, the true dip, 

 however, being south-east. 



The conglomerate was twice passed through in Dame Agnes Street 

 during the excavations for the culvert, caused by a fault, as shown in 

 section No. 1, and was there found to be divided into two strings of 

 pebbles by a lenticular mass of coarse gi'eenish- while sandstone about 4ft. 

 thick. I luet with a similar development of sandstone at the base of 

 the Lower Keuper at the bottom of the new road through Patchitt's 

 Park from the Eeseiwoir to Red Lane, about 5ft. of unconsolidated 

 yellow sandstone, streaked with red, and passing up into soft red marl, 

 coming immediately above the con'glomerate. The most easterly spot 

 where I have seen the conglomerate is near the Westminster Abbey Inn, 

 where the pebbles were embedded in a coarse red sand overlaid by 

 greenish-gray max'l. It has been met with as far east, however, as the 

 first brickyard on Carlton Road, where it was penetrated after passing 

 through lOuft. of Lower Keuper. The only localities where tins con- 

 glomerate may now be seen to any advantage are in Calcutta Street, where 

 the brown sandstone cropping out of tho sloping groiind from above the 

 Bunter is studded as thickly as it will hold with pebbles, forming a band 

 22ft. across, with a thickness of about 3ft. ; and in Red Lane, where it is 

 seen encrusting the old surface of the Bunter. Although this section 

 was carefully examined by Aveline, and described in his " Memoir on the 



♦This sec* ion has been opened ont since the reading of the paper, and is, 

 therefore, new; but it only bears out the views I had arrived at previouidy, and 

 exemplifies, on a small scale, something of the character of the unconformity 

 as shown by the more extensive and elaborate exposures of the junction now (Jan.) 

 being made at Nottingham. 



