

CANADA. 



351 



tliis zone belonged to the Lower Laurentian. (Quart. Jour. Geol. Soc., 



1867, XXIIL 253-257.) 



In the same paper Mr. H. G. Vennor gives a section of the Hastings 



series in ascending order ; this is here given, abbreviated by the omission 



of the descriptive portions. 



1 . Ked -f elspathic strata. 



2. Dark -green chlorite sLiIl'S. 



3» Whitish highly crystalline limestone. 



4. Gray silicious or fine micaceous slates. 



6. Bluish and greyish mica slates. 

 C. Grey and pinkish dolomite. 



7. Grey micaceous limestone or calc schist. 



8. Green diorite-slates. 



9. Reddish granitic gneiss. 



In the lieport of Progress for 186G~G0, Mr. Yennor again furnishes a 

 section of the rocks of the Hastings series, referring to the one given 

 above, quoted from the Quarterly Journal of the Geological Society, and 

 using the words " it is here repeated." (^. c, p. 144.) 



The following is the section as given, in ascending order, in the 

 Canada Report : 



Lower Division. A. 



1. A great mass of highly crystalline syenitic rock. 



2. Reddish and flesh coloured granitic gneiss. 



3. Gireyish and flesh-coloured gneiss. 



4. Crystalline limestone, sometinK^s niagnesian. 



Middle Division. B. 

 1. Ilornblendic and pyroxenic rocks. 



Upper Division. C. 



1. Crystalhne and somewhat granular magnosian limestone. 



2. Gray silicious 6r fine-grained mica-slates. 



3. Bluish and grayish micaceous slatp 



4. Gneissoid micaceous cpiartzitcs. 



5. tlrey micaceous limestone. 



Comparison of the sections given by Mr. Vennor will show that there 

 is hardly any rescmldance between the two. No one would ever sup- 

 pose, unless previously informed of the flict, that the same rocks were 

 intended to be embraced in them. Particular notice may bo called to 

 the transference of No. 8 of the first section from near its siunmit to the 

 middle of the series in the second one. 



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