Geological Studies in Somerset Island, University of Ottawa Expedition 1965

Geological studies around Aston Bay and Limestone Island, Stanwell-Fletcher morphic basement, the stratigraphy, sedimentology, and palaeontology of the Aston and Lake, and Creswell Bay in Somerset Island include the structure of the Pre-Cambrian meta- Hunting formations, the Palaeozoic rocks, and the younger strata north of Stanwell-Fletcher Lake. The Recent sedimentology of the lake and local Quaternary features are investigated. ReSUMe. fitudes gkologiques d I'ile Somerset, expddition de I'universitC #Ottawa, 1965. Les ktudes gkologiques effectukes autour de la baie Aston et de I'ile Limestone, du lac soubassement prkcambrien, la stratigraphie, la skdimentologle et la palkontologie des formations Stanwell-Fletcher et de la baie Creswell, a l'ile Somerset, ont port6 sur la structure du d'ilston et de Hunting, les roches palkozoiques et les strates plus rkcentes au nord du lac Stanwell-Fletcher. On a ktudik aussi la skdimentologie rkcente du lac et les traits du Quater- naire local. ASCTPAKT. TEOJlOTMqECKME MCCJlEaOBAHMR HA OCTPOBE COMEPCET, S~cne- awunr OTTaecHoro ynwsepcwreTa, 1965. reonomseeme Eccnexosamsr BoKpyr 3an~~a ACTOH E -0CTpOBa JIaBMcToH, osepa CTaHysnn-QxeTsep E ~~JIEB~ Jipeccyenn Ha ocTpose CoMepceT BICJIIOPaIOT CTpyICTypy AO-KeM6PEcCKOIO MeTaMOp4EeCKOrO GyHAaMeHT?, CTpaTEwa@EIo, CeAE- MeE'l'MJEH, M IILJIeOHTOIOl'HIo $OpMaI@ ACTOH E XaHTEHr, IIaJIe030HCKEe IIOpOAH E 6onee E MeCTHbIe 'IeTBepTEuHbIe OC06eHHOCTE TaICJfle IIOABep~a~IOTCSl E3yeHHIo. IIO3AHH)IO ~oxlqy K cesepy OT osepa C~a~ysm-Qxe~nep . HeoreHHasI ceAanaemasnsI osepa, xax E ACH OF THE topics pursued during the 1965 expedition had been initiated, or indicated as a promising field, during the previous season's work (Dineley 1965) as a contribution to the study of the Boothia Arch or Uplift (Kerr and Christie 1965). Laboratory studies during the intervening winter months have made satisfactory progress, and the area of the operation was not expanded greatly from that of 1964. The 1965 field program involved the study of all geological formations and geomorphology of certain areas between Cape Anne, Pressure Point, the southern margin of Stanwell-Fletcher Lake, and the south shore of Creswell Bay. Members of the expedition arrived in Somerset Island in mid-May; others followed later, and the field season closed early in August. Apart from the geological and geophysical work, observations were also made of the weather, wild life, ancient eskimo sites, etc., and these have been conveyed to the appro- priate authorities in Ottawa. A collection of insects made for Dr. D. R. Oliver,