Page:Midland naturalist (IA midlandnaturalis01lond).pdf/50
nearly along the dip of the Keuper,[1] 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 the overlying sandstone and marl, and the variegated beds swelled out slightly in the direction of the outcrop. The accompanying woodcut is from a sketch taken on the spot.

Junction of Keuper and Upper Bunter, Ford Street, Nottingham.
- e. Thick-bedded soft brown, yellow, and light green sandstone, with red and green finely-laminated marls (Lower Keuper.)
- d. Ferruginous band (6in.)
- c. Soft sandstone, streaked with green, red, and yellow.
- b. Conglomerate, forming base of Lower Keuper (f5), filling eroded cavities in the Bunter (f2), 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, wend was there found to be divided into two strings of pebbles by a lenticular mass of coarse greenish-while sandstone about 4ft. thick. I met 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 Reservoir to Red Lane, about 5ft. of unconsolidated yellow sandstone, streaked with red, and passing up into soft red marl, coming immediately above the conglomerate. The most easterly spot where I have seen the conglomerate is near the Westminster Abbey Tun, where the pebbles were embedded in a coarse red sand overlaid by greenish-gray marl. It has been met with as far east, however, as the first brickyard on Carlton Road, where it was penetrated after passing through 105ft. of Lower Keuper. The only localities where this conglomerate may now be seen to any advantage are in Calcutta Street, where the brown sandstone cropping out of the sloping ground 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 Banter. Although this section was carefully examined by Aveline, and described in his "Memoir on the
- ↑ This section has been opened out since the reading of the paper, and is, therefore, new; but if only bears out the views I had arrived at previously, and exemplifies, on a small scale, something of the character of its unconformity as shown by the more extensive and elaborate exposures of the junction now (Jan.) being made at Nottingham.