Geology of the Appalachian—Caledonian Orogen in Canada and Greenland
Geology of the Appalachian—Caledonian Orogen in Canada and Greenland

Author: Harold Williams

Publisher: Geological Society of America

Published: 1995

Total Pages: 951

ISBN-13: 0813754518

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This volume focuses on the Canadian Appalachian region. The chapter on the East Greenland Caledonides stands alone and there is no attempt to integrate the geological accounts of the two far removed regions. Rocks of the Canadian Appalachian region are described under four broad temporal divisions: lower Paleozoic and older, middle Paleozoic, upper Paleozoic, and Mesozoic. The rocks of these temporal divisions define geographic zones, belts, basins, and graben, respectively. The area is of special interest because so many modern concepts of mountain building are based on Appalachian rocks & structures.

The Nature of Magmatism in the Appalachian Orogen
The Nature of Magmatism in the Appalachian Orogen

Author: A. Krishna Sinha

Publisher: Geological Society of America

Published: 1997-01-01

Total Pages: 892

ISBN-13: 9780813711911

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The thermal evolution of mountain belts is recorded inthe distribution, origin and ages of magnatism. In this volume, petrologic, isotopic and geochemical evidence is presented to highlight the contribution of igneous rocks to the evolution of the Appalachian Orogen in both Canada and the United States. These papers emphasize the use of modern geochemical and petrologic data to discriminate the sources yielding magmas, and thus the nature of the crust and mantle.

The Geology and Geochemistry of the Cross Hills Plutonic Suite, Fortune Bay, Newfoundland (NTS 1M/10)
The Geology and Geochemistry of the Cross Hills Plutonic Suite, Fortune Bay, Newfoundland (NTS 1M/10)

Author: John Tuach

Publisher:

Published: 1991

Total Pages: 106

ISBN-13:

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Describes the geology, geochemistry and associated mineralization of the Cross Hills Plutonic Suite. The plutonic rocks give imprecise Rb-Sr ages of about 560 Ma, and intrude late Hadrynian metavolcanic and metasedimentary rocks of the Long Harbour Group. Minor occurrences of Zr-Nb-Y-Th-REE occur in aplite veins and fractures in the peralkaline granite.