378 DALE— CAMBRIAN MANGANESE DEPOSITS OF [April 25, 



Nanuels Tliuer 



ZIJM'f- 



12= l+\ 



BS= AS 



3-f= 3.5-' 



33= fo 



ZifJII = 3-0' 



I . I . I . I 



"<p. .". : .*. .0. 



d ' ' ' "o" ". ". '. .0 



green shale 



shlybosfebs. 



hlH. nod greert shI. 



red man^j. sh/- 



ja^pei-j m an^.lenr^hl, 



i^ed '*'*</ gveen jasp. mang. 5hl. 



xed slate. 



red^Vgfeen man^.shl. 



red' shale 



red rnang.shl. 



rn an q. nodular shale 



green shale 

 crjptozoan shale 



green shale 



pinKish lirnestorn 

 red shale 



_green shale 



bluish limestone 



conglomerate 



- uncon-Jormity 



vo/canic$'V inr.gran'rte 



Fig. 2. Columnar section showing the details of the manganese zone in 

 the Lower Cambrian of Manuels brook, 219 A and B. 



