Pap e rs A STUDY OF LATE-QUATERNARY PLANT-BEARING BEDS IN NORTH-CENTRAL BAFFIN ISLAND
ABSTRACT. Buried plant-bearing beds along Isortoq River at the northern end of Barnes Ice logical and palaeobotanical study has indicated the presence of species (e.g. dwarf birch) which Cap on Baffin Island have been dated at more than 38,830 and 40,000 years B.P. A palyno-conditions, more favourab...
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| Format: | Text |
| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.498.2851 http://pubs.aina.ucalgary.ca/arctic/Arctic19-4-296.pdf |
| Summary: | ABSTRACT. Buried plant-bearing beds along Isortoq River at the northern end of Barnes Ice logical and palaeobotanical study has indicated the presence of species (e.g. dwarf birch) which Cap on Baffin Island have been dated at more than 38,830 and 40,000 years B.P. A palyno-conditions, more favourable than the present, an interglacial age (Sangamon) is assigned to now occur several hundred kilometres south of this locality. Because of the inferred climatic the Isortoq plant bearing beds. Folding of the Isortoq beds by overriding ice and the orienta-tion of the overturned folds indicate accumulation of the initial ice cap east of this locality. ReSUMe. Etude des dépôts vkgétaux fini-quaternaires dans le centre-nord de l’île de Baffin, Canada. On a datC à plus de 38,830 et 40,000 ans av. p. respectivement des horizons vCgCtaux enfouis le long de la rivière Isortoq, à I’extrCmitC nord de la calotte de Barnes, sur l’île de Baffin. Des Ctudes palynologique et palCobotanique indiquent la présence d’espèces (comme le bouleau E n déduisant des conditions climatiques plus favorables qu’à prisent, on assigne à ces horizons nain) qui se retrouvent aujourd’hui à plusieurs centaines de kilomètres au sud de cette localitC. et l’orientation de ces plis indiquent que l’accumulation d’une calotte initiale s’est produite à un Age interglaciaire (Sangamon). Le plissement des horizons par de la glace de recouvrement l’est de la localitC. T |
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