Ramp-Flat Geometry within the Central Kapuskasing Uplift? Evidence from Potential Field Modeling Results
Potential field data constrained by seismic reflection, seismic refraction, geologic, and physical-properties data have been used to study the deep crustal structure of the central Kapuskasing uplift. The Val Rita block is interpreted as a thrust sheet of granulites detached at mid-crustal depths and uplifted along a ramp producing an arched, double granulite layer. A thin thrust sheet of southward-thickening granulites best describes the Groundhog River bloc, whereas simple thrusting along a ramp characterizes the Chapleau block. From this interpretation, a sequential evolution of the Kapuskasing uplift is proposed.
E. A. Atekwana et al., "Ramp-Flat Geometry within the Central Kapuskasing Uplift? Evidence from Potential Field Modeling Results," Canadian Journal of Earth Sciences, vol. 31, no. 7, pp. 1027-1041, National Research Council of Canada, Jul 1994.
The definitive version is available at http://dx.doi.org/10.1139/e94-093
Geosciences and Geological and Petroleum Engineering
Keywords and Phrases
Crustal Structure; Potential Field Data; Ramp-flat Geometry; Seismic Survey; Tectonic Evolution; Thrust; Canada, Ontario, Kapuskasing Uplift
International Standard Serial Number (ISSN)
Article - Journal
© 1994 National Research Council of Canada, All rights reserved.