scholarly journals A Late Glacial Buried Organic Profile near Brookside, Nova Scotia

1986 ◽  
Author(s):  
R J Mott ◽  
D R Grant ◽  
G J Beke ◽  
J V Matthews
Keyword(s):  
Nova Scotia ◽  
Late Glacial

scholarly journals Late-glacial Coleoptera fauna from Lismore, Nova Scotia

10.4138/1734 ◽  
1991 ◽  
Vol 27 (3) ◽  
Author(s):  
Randall F. Miller ◽  
Alan V. Morgan
Keyword(s):  
Nova Scotia ◽  
Late Glacial

Allerød–Younger Dryas Coleoptera from western Cape Breton Island, Nova Scotia, Canada

1996 ◽  
Vol 33 (1) ◽  
pp. 33-41 ◽  
Author(s):  
Randall F. Miller
Keyword(s):  
Nova Scotia ◽  
Younger Dryas ◽  
Late Glacial ◽  
Cold Climate ◽  
Western Cape ◽  
Cape Breton Island ◽  
Cape Breton ◽  
Beetle Assemblages ◽  
Climate Indicator ◽  
Younger Dryas Event

Studies of Coleoptera remains from two late-glacial sites on Cape Breton Island, Nova Scotia, Canada, present a picture of the paleoenvironment and paleoclimate during the Allerød–Younger Dryas transition in the Maritimes region. They provide evidence for the Younger Dryas event in northeastern North America. Between 11 300 and 10 800 BP, the beetle assemblages at the Campbell site are typical of faunas of the modern middle to northern boreal forest. The West Mabou site contains beetle fossils younger than 10 900 BP, possibly as young as 10 500 BP, extending into the time period of the Younger Dryas, dated from 10 800 to 10 000 BP in the Maritimes. A "cold climate" indicator recognizable in the beetle fauna, Olophrum boreale, occurs in relative abundance and provides an interesting comparison with sites in Europe where the same northern boreo-montane species is evident at the beginning of the Younger Dryas.

A late-glacial – Holocene palaeoecological record from Pye Lake on the eastern shore of Nova Scotia, CanadaGeological Survey of Canada Contribution 20080395.

2009 ◽  
Vol 46 (9) ◽  
pp. 637-650 ◽  
Author(s):  
Robert J. Mott ◽  
Ian R. Walker ◽  
Samantha L. Palmer ◽  
Martin Lavoie
Keyword(s):  
Nova Scotia ◽  
Younger Dryas ◽  
Late Glacial ◽  
Forest Composition ◽  
Eastern Shore ◽  
The North ◽  
Tundra Vegetation ◽  
History Of ◽  
Climatic History ◽  
Recent Sediments

Pollen and chironomid analyses and radiocarbon dating at Pye Lake on the eastern shore of Nova Scotia are used to outline the vegetation and climatic history of the area. The coast was deglaciated prior to ∼12 200 14C BP (14 300 cal BP), and herbaceous tundra vegetation invaded the area. Midge-inferred maximum summer surface-water temperatures in the lake ranged between 9 and 11 °C. Subsequent gradual warming to ∼18 °C by 10 800 14C BP (12 725 cal BP) favoured the migration of a variety of herbaceous and shrub taxa into the region. Rapid cooling to ∼10 °C saw vegetation revert to herbaceous tundra communities. This interval, related to the Younger Dryas cold interval of the North Atlantic and Europe, lasted until ∼10 000 14C BP (11 630 cal BP). The climate then warmed again to conditions similar to those that prevailed immediately before onset of Younger Dryas cooling. Further warming saw successive tree species migrate into the area until, by the mid-Holocene, the forests contained most of the taxa prevalent today. Since ∼3500 years ago, cooling of the climate has favoured conifer species over broad-leaved taxa. Agriculture and logging practices in the last 150 years have altered the forest composition, but pollen analysis of the most recent sediments cannot resolve these changes adequately.

Late Glacial Ice-Wedge Casts in Northern Nova Scotia, Canada

Science ◽  
1965 ◽  
Vol 148 (3674) ◽  
pp. 1223-1226 ◽  
Author(s):  
H. W. Borns
Keyword(s):  
Nova Scotia ◽  
Late Glacial ◽  
Glacial Ice ◽  
Ice Wedge

A CARBON-DATED POLLEN DIAGRAM FROM THE CAPE BRETON PLATEAU, NOVA SCOTIA

1967 ◽  
Vol 45 (3) ◽  
pp. 339-359 ◽  
Author(s):  
D. A. Livingstone ◽  
A. H. Estes
Keyword(s):  
Nova Scotia ◽  
Radiocarbon Dating ◽  
Late Glacial ◽  
Pollen Diagram ◽  
Cape Breton ◽  
Poplar Trees ◽  
Glacial Time ◽  
Nova Scotian

Organic sedimentation in a lake near the southwestern edge of the Cape Breton Plateau began about 9000 years ago. Before that time the vegetation was an open tundra, probably with scattered conifer and poplar trees. Since then the vegetation has been dominated by closed fir forest of a variety of types not dissimilar to forests growing in various parts of Nova Scotia today. Organic sedimentation and the establishment of forest, and by implication deglaciation, began more recently at Wreck Cove Lake than at any other Nova Scotian locality that has been investigated. The establishment of forest occurred 1300 years sooner in part of lowland Cape Breton, and 1800 years sooner in part of mainland Nova Scotia, than it did on the Cape Breton Plateau. The length of postglacial, preforest time, which cannot be measured by radiocarbon dating, appears to have been much shorter at Wreck Cove than it was in lowland Cape Breton. The Cape Breton Plateau was not, as some phytogeographers have suggested, a nunatak during glacial time. It may have been a center of late-glacial readvance.

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