24 Mapping in the Geosciences: Processes and Products (Posters)

Monday, 18 March 2024
9:00 AM - 1:00 PM
Armory Ballroom

MAKING A DETAILED AND INTERACTIVE MAP OF FAULTS, PROVINCES AND DOMAINS OF THE ENTIRE CANADIAN SHIELD USING ARCGIS PRO AND STRUCTURALLY CONTROLLED LAKES AND RIVERS

Paper number: 24-23
Program: Theme Sessions
Time: 9:00 AM – 1:00 PM

Authors

Abstract

The Canadian Shield contains a complex array of Precambrian bedrock, recording numerous orogens, dike swarms, and the amalgamation of terranes into the cratons seen today. The whole region is crisscrossed by countless lineaments, shear zones, dikes, brittle faults and macroscale folds. Many of these features can be seen on the surface and some can be traced for hundreds of kilometers. This is due to the structurally controlled streams, rivers, lakes and glacial valleys along these lineaments, and well as resistant bedrock. In places like the Great Slave Lake, the Coronation Margin, and many other areas, lineaments separate major orogens, cratons and domains. By following these lineaments in ArcGIS Pro, a detailed and interactive map can be made highlighting faults, and the different provinces and lithotectonic domains. Areas like the Athabasca granulite terrane, Taltson-Thelon tectonic zone, Wopmay/Calderian orogen, Trans-Hudson orogen and others have boundaries and fault zones that can be mapped extensively. Structurally controlled geomorphological features are vital to our understanding of the Canadian Shield, and help to better understand its complex geology.

Geological Society of America Abstracts with Programs. Vol. 56, No. 1

doi: 10.1130/abs/2024NE-397771

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