Regional geophysical modelling and paleo-reconstruction in and around the southern Slave Structural Province.
The rocks of northwestern Canada represent over 4.0 Ga of geological history. This study focuses on two periods from that history: geophysical modeling in the south-central Archean Slave Structural Province and a reconstruction of the Early Proterozoic Great Slave Lake Shear Zone (GSLSZ) using the r...
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| Format: | Thesis |
| Language: | unknown |
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University of Ottawa (Canada)
2000
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| Online Access: | http://hdl.handle.net/10393/9305 https://doi.org/10.20381/ruor-16245 |
| Summary: | The rocks of northwestern Canada represent over 4.0 Ga of geological history. This study focuses on two periods from that history: geophysical modeling in the south-central Archean Slave Structural Province and a reconstruction of the Early Proterozoic Great Slave Lake Shear Zone (GSLSZ) using the regional magnetic fabric. One of the goals of the modelling in the Slave Province was to constrain the depth extent and shapes of the exposed plutons and greenstone belts. The reconstruction of the GSLSZ was performed using a technique developed by Roest and Pilkington (1994). First, the effects of the Bathurst and MacDonald Fault Zones were removed. Reconstruction of the GSLSZ was performed using the regional magnetic fabric after the removal of the effects of the Bathurst and MacDonald Fault Zones. One possible combination of plate geometries is assumed. Although widely separated in time, the two tectonic phases addressed in this study depicts two phases in the process of craton formation. (Abstract shortened by UMI.) |
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