Affiliation:
1. Departments of Geology and Oceanography, Dalhousie University, Halifax, Nova Scotia B3H 3J5
Abstract
Ten cores from the Northeast Newfoundland shelf and adjacent continental slope have correlable late Quaternary marine sequences. Late Holocene sediment is olive grey mud, with some ice-rafted debris. The early Holocene is characterised by warmer water microfossil assemblages, abundant ice-rafted carbonate debris, and pollen assemblages indicating open boreal woodland interspersed with tundra. Late and mid-Wisconsinan glacial stades show subarctic planktonic microfossil assemblages, regional sources of tundra pollen, storm reworking of earlier sediment, including till, and shallower water assemblages of benthonic foraminifera and diatoms. Two mid-Wisconsinan interstades are recognised, with marine microfossils similar to the early Holocene. This sequence rests disconformably on earlier (?lllinoian) pro-glacial muds which appear to overlie till.
Reference28 articles.
1. AKSU, A. E. and PIPER, D. J. W. (1979): Baffin Bay in the last 120,000 years (Submitted to Geology).
2. ALAM, M. and PIPER, D. J. W. (1977): Pre-Wisconsin stratigraphy and paleoclimates off Atlantic Canada, and its bearing on glaciation in Québec, Géogr. Phys. Quat., vol. 31, p. 15-22.
3. CARTER, L., SCHAFER, C. T. and RASHID, M. A. (1979): Observations on depositional environments of the continental slope and rise, east of Newfoundland, Can. J. Earth Sci. (submitted).
4. CHOUGH, S. K. (1978): Morphology, sedimentary facies and processes of the Northwest Atlantic Mid-Ocean channel between 61° and 52°N, Labrador Sea, Ph. D. thesis, McGill Univ., Montréal, 167 p.
5. CRONIN, T. M. (1977): Champlain Sea foraminifera and ostracoda: a systematic and paleoecological synthesis, Géogr. Phys. Quat, Vol. 31, p. 107-122.
Cited by
6 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献