Reply: U – Pb zircon date from Avalonian Cape Breton Island and geochronologic calibration of the Early Ordovician

1997 ◽  
Vol 34 (12) ◽  
pp. 1671-1672 ◽  
Author(s):  
Ed Landing
Keyword(s):  
Cape Breton Island ◽  
Early Ordovician ◽  
Cape Breton

Discussion: U – Pb zircon date from Avalonian Cape Breton Island and geochronologic calibration of the Early Ordovician

1997 ◽  
Vol 34 (12) ◽  
pp. 1670-1671 ◽  
Author(s):  
S. M. Barr ◽  
C. E. White ◽  
A. S. Macdonald ◽  
R. P. Raeside
Keyword(s):  
Cape Breton Island ◽  
Early Ordovician ◽  
Cape Breton

U – Pb zircon date from Avalonian Cape Breton Island and geochronologic calibration of the Early Ordovician

1997 ◽  
Vol 34 (5) ◽  
pp. 724-730 ◽  
Author(s):  
Ed Landing ◽  
Samuel A. Bowring ◽  
Kathleen L. Davidek ◽  
Richard A. Fortey
Keyword(s):  
New Brunswick ◽  
Eastern Cape ◽  
Associated Fauna ◽  
Zircon Age ◽  
Cape Breton Island ◽  
Early Ordovician ◽  
Cape Breton ◽  
Fossil Evidence ◽  
North Wales ◽  
Saint John

A U–Pb zircon date of 483 ± 1 Ma is recorded from an uppermost Tremadoc K-bentonite from the Chesley Drive Group on McLeod Brook, eastern Cape Breton Island. The associated fauna, with the trilobite Peltocare rotundifrons, is also known from the Reversing Falls section in Saint John, New Brunswick, and the traditional reference of the latter section to the Arenig is incorrect. A 483 ± 1 Ma age is significantly older than a U – Pb zircon age reported from the classical base of the Arenig Series in north Wales and about 10 Ma older than strata regarded herein as upper Arenig in central Newfoundland. If the global standard for the base of the Arenig is defined at the Tetragraptus approximatus Zone base, then the base of the type Arenig in Wales is younger than the latter horizon. The McLeod Brook occurrence is from an uppermost Tremadoc (Hunnebergian Stage) interval that has been removed below the unconformity in north Wales. The age of the Tremadoc –Arenig series boundary remains uncertain; however, a tentative estimate that it is significantly younger than 483 Ma is suggested by fossil evidence.

Detrital zircon geochronology of a conglomerate in the northeastern Cape Breton Highlands: implications for the relationships between terranes in Cape Breton Island, the Canadian Appalachians

1995 ◽  
Vol 32 (2) ◽  
pp. 216-223 ◽  
Author(s):  
Ya-Dong Chen ◽  
Shoufa Lin ◽  
Cees R. van Staal
Keyword(s):  
South America ◽  
Detrital Zircon ◽  
Detrital Zircons ◽  
Early Cambrian ◽  
Zircon Geochronology ◽  
Cape Breton Island ◽  
Detrital Zircon Geochronology ◽  
Middle Ordovician ◽  
Early Ordovician ◽  
Cape Breton

Cape Breton Island has been interpreted as consisting of four zones of pre-Carboniferous rocks, but the relationships among them are controversial. To help resolve the controversy, we have dated detrital zircons from a conglomerate (part of the Cheticamp Lake Gneiss) in the Aspy terrane in the northeastern Cape Breton Highlands using the U–Pb method. The following ages were obtained: 462 ± 2 Ma (Middle Ordovician); ~492–488 Ma (6 ages; Early Ordovician); 552 ± 3 Ma (latest Precambrian–Early Cambrian); 620 ± 13 and 687 ± 4 Ma (Cadomian); and 809 ± 17, 1423 ± 10, 1462 ± 12, 1605 ± 14, 1644 ± 4, and 1911 ± 5 Ma (Proterozoic). The Middle Ordovician age sets a maximum age limit for deposition of the conglomerate, and supports an Ordovician–Silurian age for the Cheticamp Lake Gneiss. The Early Ordovician, latest Precambrian–Early Cambrian, and Cadomian ages match published ages from the Bras d'Or terrane (and its correlatives) and the Mira terrane (and its correlatives), and indicate provenance of the conglomerate from both terranes. They also indicate that the Bras d'Or and Mira terranes had been connected by the time of deposition of the conglomerate. The combination of the Cadomian and the Proterozoic ages is typical of parts of South America, supporting a suggestion that the Avalon Composite Terrane was derived from South America.

Contrasting U–Pb ages from plutons in the Bras d'Or and Mira terranes of Cape Breton Island, Nova Scotia

1990 ◽  
Vol 27 (9) ◽  
pp. 1200-1208 ◽  
Author(s):  
S. M. Barr ◽  
G. R. Dunning ◽  
R. P. Raeside ◽  
R. A. Jamieson
Keyword(s):  
Nova Scotia ◽  
Close Similarity ◽  
Zircon Age ◽  
Middle Cambrian ◽  
Cape Breton Island ◽  
Early Ordovician ◽  
Late Precambrian ◽  
Cape Breton ◽  
Devonian Age

U–Pb dates from zircon, titanite, and monazite in plutons of the Bras d'Or and Mira terranes of southern Cape Breton Island, combined with 40Ar/39Ar and other radiometric age data, indicate that the Bras d'Or and Mira terranes had separate magmatic and metamorphic histories until at least the Middle Cambrian and possibly until the Devonian. The Bras d'Or Terrane is characterized by abundant late Precambrian (ca. 565–555 Ma) dioritic to granitic plutons, as exemplified by the Shunacadie granodiorite ([Formula: see text], U–Pb zircon). Early Ordovician granitic plutons, such as the Kellys Mountain leucogranite with a U–Pb (zircon) age of 498 ± 2 Ma, occur locally. Titanite and 40Ar/39Ar (hornblende) ages from plutons and metamorphic units suggest that widespread metamorphism may have occurred between these plutonic events and (or) during the Early Ordovician plutonism.Plutons in the Mira Terrane appear to have been emplaced at about 620 Ma or before, as exemplified by the Chisholm Brook granodiorite ([Formula: see text]), and to have been unaffected by younger thermal events, as indicated by close similarity of U–Pb (zircon and titanite) and 40Ar/39Ar (hornblende) ages. Plutons of Devonian age are localized in an easterly trending belt in the central part of the terrane. In contrast to the Bras d'Or Terrane, widespread latest Precambrian (ca. 565–555 Ma) to Early Ordovician plutonism and metamorphism appear to have been absent. It is unlikely that the Mira and Bras d'Or terranes were juxtaposed before the Early Ordovician.

Culinary tourism on Cape Breton Island

2019 ◽  
Vol 6 (2) ◽  
Author(s):  
Erna MacLeod
Keyword(s):  
Tourism Destination ◽  
Cape Breton Island ◽  
Culinary Tourism ◽  
Economic Significance ◽  
Cape Breton ◽  
Local Stakeholders ◽  
Resilient Communities ◽  
World Class ◽  
Ecological Relations ◽  
Developed World

Cape Breton Island is a well-known North American tourism destination with long-standing attractions such as the Cabot Trail and more recently developed world-class offerings such as the Cabot Links Golf Course. Tourism contributes significantly to Cape Breton’s economy, particularly since the mid-20th century as traditional resource-based industries have declined. In the 21st century, culinary tourism has become increasingly important to expand the island’s tourism offerings and to provide “authentic” tourism experiences. This study examines local-food tourism in Cape Breton to illuminate its cultural and economic significance. I conducted interviews with food producers, restaurateurs, government representatives, and tourism executives. I also consulted websites and policy documents and compared local stakeholders’ experiences and perspectives with official tourism strategies. Promoting culinary tourism raises questions of power, autonomy, inclusion, and accountability. My study accentuates possibilities for aligning economic and ecological goals to create resilient communities, foster equitable social and ecological relations, and establish Cape Breton as a culinary tourism destination.

Cape Breton ruby, a new Canadian gemstone discovery, Cape Breton Island, Nova Scotia

2007 ◽  
Vol 30 (5) ◽  
pp. 279-286 ◽  
Author(s):  
David J. Mossman ◽  
James D. Duivenvoorden ◽  
Fenton M. Isenor
Keyword(s):  
Nova Scotia ◽  
Cape Breton Island ◽  
Cape Breton
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