Fifty Years of the Wilson Cycle Concept in Plate Tectonics

Fifty Years of the Wilson Cycle Concept in Plate Tectonics
Author: R.W. Wilson
Publisher: Geological Society of London
Total Pages: 488
Release: 2019-11-11
Genre: Science
ISBN: 1786203839

Fifty years ago, Tuzo Wilson published his paper asking `Did the Atlantic close and then re-open?’. This led to the `Wilson Cycle’ concept in which the repeated opening and closing of ocean basins along old orogenic belts is a key process in the assembly and breakup of supercontinents. The Wilson Cycle underlies much of what we know about the geological evolution of the Earth and its lithosphere, and will no doubt continue to be developed as we gain more understanding of the physical processes that control mantle convection, plate tectonics, and as more data become available from currently less accessible regions. This volume includes both thematic and review papers covering various aspects of the Wilson Cycle concept. Thematic sections include: (1) the Classic Wilson v. Supercontinent Cycles, (2) Mantle Dynamics in the Wilson Cycle, (3) Tectonic Inheritance in the Lithosphere, (4) Revisiting Tuzo’s question on the Atlantic, (5) Opening and Closing of Oceans, and (6) Cratonic Basins and their place in the Wilson Cycle.

Geology of the Eastern Cobequid Highlands, Nova Scotia

Geology of the Eastern Cobequid Highlands, Nova Scotia
Author: J. B. Murphy
Publisher:
Total Pages: 72
Release: 2001
Genre: Geology
ISBN:

The Cobequid Highlands of Nova Scotia lie within the Avalon composite terrane of the Appalachian Orogen. This report presents a description & interpretation of the field, structural, and laboratory studies of pre-Carboniferous rocks of the eastern part of the Highlands based on mapping at 1:10,000 scale. It includes information on the Precambrian & Palaeozoic sedimentary, volcanic, & plutonic rocks; geochemistry of selected rocks; uranium-lead age determinations; and structural geology, including deformation histories & faults. Correlations with rocks in the Antigonish Highlands are also discussed.