NEWFOUNDLAND APPALACHIANS 



2J3 



RED CLIFF 

 POND 



SECTION 6 



6 5 



I I I 



SNOOKS 

 ARM 



Iwrrtf 



SECTION 



TOMMYS 



ARM SOPS ARM 



SHOAL 

 ARM 



BEAVER 

 7 BIGHT 



WILD BIGHT 



2_ 





ROTI 



15LE AU 

 N ^BOIS 



////ft 



BAIE 

 I/D'ESPOIR 



5ECTION 8 



Schist 



•5 Safes, phy///fes, qucrrfz/tes, groywocAes 



\ i s / k~/ ri 

 /\ '/ n/w w ' 



/www C7 



Devon /on (?) gron/f'e 



Bo/e cf ' £spo/r ser/e5 



L 



4 MILES 



J 



Fig. 13.9. Representative cross sections of Newfoundland. Section 6 after Snelgrove, 1931; 1 

 to 5 make up the Snooks Arm series of Ordovician age. 1, andesite pillow lava; 2, andesite; 3, 

 rhyolite; 4, pyroclastics; 5, slates, argillite, sandstone, chert. Nos. 6 to 8 are post-Ordovician. 

 6, gabbro; 7, diabase and basalt; 8, Burtons Pond granite porphyry. Section 7 after Espenshade, 



by J. J. Hayes. Some of the northeast are probably horizontal shears, and 

 the main east-west faults are high-angle ones with movement in the ver- 

 tical direction. The fold axes trend acute to the major faults, and to put 

 them in the same mechanical frame as the folds seems impossible. The 

 folds appear to the writer to be Acadian, and the faults more likely to be 

 associated with the faulting of the Carboniferous basins and later than 

 with the Acadian folding. 



Zone Three. Zone three is much like zone two but includes several 

 Precambrian linear masses. These may be upfaulted blocks or cores of 



1937. 1, pillow basalts; 5, andesites; 4, shales and sandstone; 3, coarse, massive sandstone; 6, 

 argillaceous graywacke and chert; 2, shales, tuffs and cherts; 7, gabbro. All units are probably 

 Ordovician. Section 8 is after Jewell, 1939. 



anticlinoria. Cross sections 8, Fig. 13.9 and 9A and 9B, Fig. 13.10, are rep- 

 resentative of the structure. They show especially the trans gressive grani- 

 toid intrusions. The Precambrian rocks that appear in zone three are 

 sediments and volcanics, and are considered later than the schists and 

 gneisses of Long Range. 



Zone Four. Zone four is predominantly a late Precambrian sedimen- 

 tary and volcanic series, with infolded or downfaulted Cambrian and 

 Ordovician sediments in several places. On Belle Isle of Conception Bay, 

 Ordovician sediments occur which carry iron ore. See map and sections, 



