CALCULATION OF SHORTENING DUE TO OUTCROP-SCALE DEFORMATION AND ITS RELATION TO REGIONAL DEFORMATION PATTERNS
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dc.contributor.author | Hogan J.P. | |
dc.contributor.author | Dunne W.M. | |
dc.date.accessioned | 2021-03-11T07:47:43Z | |
dc.date.available | 2021-03-11T07:47:43Z | |
dc.date.issued | 2001 | |
dc.identifier | https://www.elibrary.ru/item.asp?id=771213 | |
dc.identifier.citation | Journal of Structural Geology, 2001, 23, 10, 1507-1529 | |
dc.identifier.issn | 0191-8141 | |
dc.identifier.uri | https://repository.geologyscience.ru/handle/123456789/26606 | |
dc.description.abstract | The objectives of this study are to: assess the regional contribution of outcrop-scale structures in well-exposed rocks of a tectonic province; and evaluate how failure to measure this scale of structure affects the assessment of regional deformation. The contribution of outcrop-scale structures to regional deformation has not been quantified previously because of the need for long continuous exposures to regionally characterize the structures. This study used 18.6km of semi-continuous roadcut and streambed exposures in well-exposed Devonian clastic rocks to construct 1:200-scale profiles to address the objectives.Key results are: (1) outcrop-scale structures contribute about 1/6 to 1/4 of total regional shortening. (2) Submapscale shortening components from microscale and outcrop-scale structures equal mapscale shortening that would be interpreted from a regional cross-section. (3) Analysis of submapscale structures in the target blind thrust belt is needed to identify that the roof-sequence deformation preceded and continued through duplex formation. (4) The kinematic response of the roof sequence would be incorrectly identified as backthrusting if the shortening contribution of outcrop-scale structures is ignored. (5) Although measured outcrop-scale shortening does not match that predicted by the fractal analysis of other workers, the fractal approach to predicting deformation as a function of scale may still be valid. | |
dc.subject | SHORTENING | |
dc.subject | OUTCROP-SCALE DEFORMATION | |
dc.subject | TECTONIC PROVINCE | |
dc.subject | Devonian | |
dc.title | CALCULATION OF SHORTENING DUE TO OUTCROP-SCALE DEFORMATION AND ITS RELATION TO REGIONAL DEFORMATION PATTERNS | |
dc.type | Статья | |
dc.subject.age | Paleozoic::Devonian | en |
dc.subject.age | Палеозой::Девонская | ru |
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