A ceo a lit of Glacial Deposits of Bacchus Marslt. 57 



unstratitied Diaterial bearing striated stones, and overlaid by 

 very irregularly stratified tumultuous-looking sandstones. 

 These sandstones are very probably simply beds associated 

 with the glacial deposit. This is indicated by their 

 tumultuous ajipearance, and by the fact that we found 

 several well scored stones in them. Moreover, a small patch 

 of a material sin.ilar to that beneath occurs intercalated 

 \vith them. 'J'he basalt is banked right u[) against this, the 

 line of junction being almost \ertical. The whole mass 

 probably formed a ridge in the valley at the time the basalt 

 overflowed it. Striated stones can be traced foi' about a 

 third of a mile further down this valle}', on the right hand 

 side, being overlaid by basalt (Fig. 2) The characteristic 

 stones of the glacial deposit can be traced along the hills 

 flanking the valley on the left. At one spot, between the 

 big quairy and another smaller one further down the valley, 

 a conglomerate occurs, which consists of a loam}- matrix, in 

 which are scattered angular fragments, in all |)i)sitions, of 

 soft sandstone. This rests on the denuded edges of well 

 stratifled Triassic saridstone, from which the fragments have 

 apparently been derived. 



Some distance further on, a small quarry occurs in the 

 Triassic sandstones, whicli here dip E.S.E. about r35°. The 

 glacial conglomerate can be traced to about 200 feet above 

 the Ci-eek. and in the quari-y can be seen in section lesting on 

 the sandstf)nes to a depth of about Ave feet. On the left 

 hand side of this section, the junction is very marked, wh.ile 

 ti-acing it to the right, it becomes very indeflnite by the 

 disintegration of the sandstone. This section is at right 

 angles to the dip. At the same quarr}^ another section is 

 exposed at right angles to the former. This exhibits 

 remarkable and important features. Beginning at the lower 

 en;l of the section, a pell-mell accumulation of rough angular 

 and rounded blocks, up to eighteen inches and two feet 

 in diameter, embedded in a loamy matrix, is seen overlying 

 soft purplish stratifled clays or shales. The lattei are much 

 broken up and disintegrated at their junction with the over- 

 lying deposit. Anoular blocks of sandstone in every 

 conceivable position are mixed up in the ruin, and in fact 

 a deflnite junction it is almost impossible to distinguish. 

 Further aloiig the section, this mixed matei-ial merges into a 

 purplish mass of clay, ovei'lying broken and shattered sand- 

 stones. (The shales and sandstones are of the same 

 formation.) This purplish clay, which is evidently derived 



