Southeastern Atlantic Canada, Northwestern Africa, and Continental Drifts: Reply

1973 ◽  
Vol 10 (4) ◽  
pp. 586-588
Author(s):  
Paul E. Schenk
Keyword(s):  
Atlantic Canada ◽  
Northwestern Africa ◽  
Southeastern Atlantic

Southeastern Atlantic Canada, Northwestern Africa, and Continental Drift: Discussion

1973 ◽  
Vol 10 (4) ◽  
pp. 584-586 ◽  
Author(s):  
H. Hollard ◽  
J. P. Schaer
Keyword(s):  
Continental Drift ◽  
Atlantic Canada ◽  
Northwestern Africa ◽  
Southeastern Atlantic

Southeastern Atlantic Canada, Northwestern Africa, and Continental Drift

1971 ◽  
Vol 8 (10) ◽  
pp. 1218-1251 ◽  
Author(s):  
Paul E. Schenk
Keyword(s):  
North Atlantic ◽  
Plate Tectonics ◽  
Continental Drift ◽  
Continental Collision ◽  
Atlantic Canada ◽  
Island Arcs ◽  
Late Precambrian ◽  
The North ◽  
Northwestern Africa ◽  
Southeastern Atlantic

The model applies plate-tectonics to explain the geologic evolution of southeastern Atlantic Canada and northwestern Africa. The North Atlantic may have opened and closed several times from the middle Cryptozoic to the present. Closings of the ocean caused collisions between continents and also island arcs. Openings were ragged so that parts of one continent were transposed to the other, and sialic fragments became offshore micro-continents. Africa has progressively lost increments of continental crust to North America.Precambrian blocks of southeastern Atlantic Canada may be remnants of an African shelf. which was crumpled during a billion-year old continental collision (Grenville orogeny). After ragged rifting during the Late Precambrian these fragmentary blocks were carried eastward as micro-continents off Africa. Both early (Danakil Alps of the Red Sea) and late-stage (Canary Islands) recent analogues appear valid. The micro-continents ponded turbidites, which formed rise-complexes off Africa. Continental glaciations in the Late Precambrian and Late Ordovician not only make excellent inter-regional chronostratigraphic units in almost unfossiliferous strata. but also may confirm the African origin of Nova Scotia. Subducting plate-margins increased offshore volcanism and narrowed the Paleozoic Atlantic. Late Paleozoic continental collision again between Africa and North America sandwiched the micro-continent, telescoped the sedimentary/volcanic complexes, and flooded the sutured area with granodiorite. Middle Carboniferous carbonates and sulfates record vestiges of the Paleozoic Atlantic, and mixing of the Euro-African fauna with that of the western Paleozoic Atlantic of the northwestern Appalachians. The Atlantic was closed at least along the latitude of Atlantic Canada and Morocco. During the Mesozoic, an accreting margin uplifted this area, quickened redbed deposition and volcanism, initiated restricted marine sedimentation, and inaugurated the present North Atlantic east of the African remnant of southeastern Atlantic Canada.

Upper Cretaceous and Cenozoic Geology of the Southeastern Atlantic Coastal Plain: Atlanta, Georgia to Chesapeake, Virginia July 1-9, 1989

10.1029/ft172 ◽  
1989 ◽  
Author(s):  
W. Burleigh Harris ◽  
Vernon J. Hurst ◽  
Paul G. Nystrom ◽  
Lauck W. Ward ◽  
Charles W. Hoffman ◽  
...  
Keyword(s):  
Coastal Plain ◽  
Upper Cretaceous ◽  
Atlantic Coastal Plain ◽  
Atlantic Coastal ◽  
Southeastern Atlantic

Inequity and Chronic Disease in Atlantic Canada - A Community Tool Kit

2004 ◽  
Author(s):  
Andrea Lebel ◽  
Karen Hayward ◽  
Ronald Colman ◽  
Andrea Lebel
Keyword(s):  
Chronic Disease ◽  
Atlantic Canada

Addressing the Impact of Social and Economic Exclusion in Atlantic Canada - Shared Learning Through Partnership

2004 ◽  
Author(s):  
Fiona Chin-Yee ◽  
Malcolm Shookner ◽  
Moyra Buchan
Keyword(s):  
Atlantic Canada ◽  
Shared Learning ◽  
Economic Exclusion ◽  
The Impact

Monazite deposits of the southeastern Atlantic States

Circular ◽  
1953 ◽  
Author(s):  
John Beaver Mertie
Keyword(s):  
Southeastern Atlantic

Place Names of Atlantic Canada

1996 ◽  
Author(s):  
William B. Hamilton
Keyword(s):  
Atlantic Canada ◽  
Place Names
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