ABSTKACTS OF PAPERS 39 



The Lower Devouiau (Helderbergian) sediments are red and green elastics 

 with extensive ripple-marks, mud-cracks, and salt hoppers, and with marine 

 fossils confined to limited zones. The later Devonian was a second period of 

 orogeny, marked by folding and by both extrusions and extensive laccolithic 

 intrusions of very basic lavas. 



Deposition did not begin again until the Upper Mississippian, when there 

 was laid down the more or less marine Windsor series of red and variegated 

 elastics, with local dolomite and gypsum having limited occurrences of marine 

 fossils. The Pennsylvanian sediments are wholly of continental origin and 

 contain some coal locally. A third period of orogeny was that of the Appa- 

 lachian revolution, which began here some time late in the Paleozoic. 



The next deposits are Pleistocene tillites, derived from the east, and these 

 are locally overlain by fossiliferous marine clays of late Pleistocene time, 

 which in places are as high as 100 feet above present sealevel. 



Little is recorded in Newfoundland of its Mesozoic and Oenozoic history, 

 though the island was reduced to peneplanation, after which, probably in late 

 Cenozoic time, there was an uplift, greater in the west than in the east, which 

 brought the flat-topped Long Range to its present elevation of about 2,000 feet. 



Presented by title in the absence of the authors. 



STRATIGRAPHY OF THE MOOSE AND ALBANY RIVERS OF NORTHERN 



ONTARIO 



BY M. Y. WILLIAMS 



(Abstract) 



The rock exposures of these river courses indicate a geological section inter- 

 preted In age as follows: Queenston, Cataract?, Niagara, Guelph, Salina, early 

 Upper Devonian (formerly classed as Arondaga), Tully, Huron, and Portage. 

 Mesozoic sediments are represented in the Mattagami basin by clay shales, 

 lignites, and plant-bearing sandstone. The Pleistocene section includes boulder 

 till, outwash sands and gravels, marine clay and sand, and what is believed 

 to be interglacial peat. The beds for the most part dip toward James Bay at 

 the rate of about two feet per mile, but marked open folds occur in the Moose 

 River basin, where thin sheets and narrow dikes of trap cut the early Upper 

 Devonian limestones. 



Presented without notes, with charts and lantern slides. 



AGE OF THE ANDES 

 BY EDWARD W. BKRRY AND JOSEPH T. SINGEWALD, JR. 



i Abstract) 



Evidence is brought forward, from scattered localities extending from Co- 

 lombia and Venezuela on the north to Patagonia on the south, showing that 

 marine Pliocene is involved in the last and greatest uplift of the Andes. Tt is 

 shown by means of fossil plants that Amazon basin conditions formerly pre- 

 vailed along the present west coast. The probability of the existence of a 



