Friday, January 25, 2013

Archean geology

Map of the Lac Peters mapsheet (SE Douglas Harbour), showing the trend of foliations defined from field observations and interpretation of air photographs. Plotted strike and dips are averaged values for each sub-area. Supracrustal belts also define a similar, swirly pattern, whereas late- to post-kinematic monzonitic intrusions strike N-S. B├ędard et al.: Archaean cratonization and deformation in the northern Superior Province, Canada: an evaluation of plate tectonic versus vertical tectonic models. Precambrian Research 127 (2003) 61–87

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