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schists, of the same appearance as the one met with at C.Brown. 

 The green colour is probably caused principally by thin mica- 

 ceous and chloritic scales ; moreover, there is a dense, sericitic 

 mass; nor is calcite lacking as a matrix. 



I also came^across similar schists at another spot underneath 

 the conglomerate rock. There were both green and red schists 

 of the same appearance as those just described and, in ad- 

 dition, lighter, hard, granulite-like layers which create a fine 

 banded texture, while certain layers swell out into small lenses 

 which may cut off the adjacent ones. In this series 1 also 

 found veins or irregular layers of a dense, dark-grey limeslone. 



The conglomerate that here rests on the schist, differs 

 from that just described in having a much looser character, 

 which, as shown under the microscope, is closely allied to a 

 well-marked crushing structure, and unless the foreign, well 

 preserved pebbles were there one would be inclined to consider 

 it a dislocation breccia rather than a clastic conglomerate. As 

 it is, no other explanation can be given than that a dislocation 

 has really taken place, chiefly affecting the conglomerate along 

 the contact where it rests on the Archaean rock. In this con- 

 glomerate, too, I found an intervening layer of schist, whose 

 intense red colour was created by a fine dust of iron-oxide 

 which transverses the cementing mass, whilst the numerous 

 splinters of quartz which constitute the bulk of the rock are 

 pure and uncoloured. In its structure the rock is exactly like 

 the green schist just described. 



Of great interest are the pebbles in this conglomerate, which 

 I tried to examine somewhat closer. True crystalline schists 

 play no part, the chief mass is made up of red granites, of 

 which, however, many, by their general habitus or their passing 

 over into syenites, show that they do not belong to the normal 

 archaean rock series, but to the more recent series of eruptives 

 which are found cropping out further north on the coast and 

 \\hich are later to be described, chiefly from the specimens 



