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J, E. Marr — Physiography of Lakeland. 



considerable waterfall, reaches Gill Head Bridge at a height of 

 about 540 feet. Above this is an alluvial flat extending to the 

 Coniston copper works at the junction of the Eed Dell Beck with 

 that formed by the union of Lever's Water and Low Water Becks. 

 The bottom of this alluvial valley is occupied by stratified deposits, 

 formed by the washings of the copper works, which will, of course, 

 not be confused with the much older deposits about to be described. 



Explanation of Map of Church Beck, Coniston. 

 SS, Outcrop of Skelgill beds (shifted by fault above head of Coniston Lake). 

 ' «, Position of gravels with fragments of Skelgill beds. 

 h, Position of contorted loam, etc., on Boulder-clay. 

 The dotted line on map marks the 500-feet contour line. 

 The plain arrow indicates the direction of the Local Glacier. 

 The feathered arrow indicates the direction of the Yewdale Glacier. 



Close to Gill Head Bridge, by the side of the road on the left 

 bank of the stream, is a section in gravel and loam (a similar gravel 

 occurs by the side of the road at a lower level and nearer Coniston 

 Village at a height of 400 feet). 



These deposits are well stratified, and rest on glaciated rocks 

 with strise pointing down the Church Beck Valley, and no doubt 

 formed by a glacier coming down from the Old Man Eange. 

 Amongst other stones, they contain a number of fragments of the 

 Skelgill graptolite-bearing beds, occurring in situ about 350 feet 

 lower down the valley. It is of interest to inquire how these frag- 

 ments got into this position. 



The top of the gravel forms an indistinct terrace, at a height 

 of about 575 feet, which may be seen on either side of the valley ; 

 but it does not run continuously round it, for the stratified deposits 

 abut against and overlie Boulder-clay near the top of the alluvial 

 plain, just below the Copper Works, and by the side of the above- 



