Large sheath folds in the Briançonnais of the Ligurian Alps reconstructed by analysis of minor structures and stratigraphic mapping

Bibliographic Data

ID16840884
AuthorsM Maino (0000-0001-8766-8027, University of Pavia, corresponding author), Lorenzo Bonini (0000-0001-5613-7813, University of Pavia), Giorgio Dallagiovanna (University of Pavia), Silvio Seno (0000-0002-9863-3476, University of Pavia)
Year2015
Volume11
Issue1
Pages157-167
Publication date2015-01-01
Open AccessYes
TypeARTICLE
VenueJournal of Maps (JOURNAL)
Journal identifiersISSN: 1744-5647 • E-ISSN: 1744-5647
PublisherInforma UK Limited (PUBLISHER • GB)
DOI10.1080/17445647.2014.959568
OpenAlexW1999122106
LanguageEN
Citations received2
References cited23

This study presents a geometric and structural analysis of curvilinear sheath folds exposed in blueschist rocks of the Ligurian Alps. Field data are presented in a geological map of the structural synthesis with related geological sections (at the 1:10,000 scale) that illustrate the relationships and evolution of large-scale, sheath folds within metamorphic rocks. We based our analyses on the geometric parameters of more than 40 minor folds, as shape (hinge-Lm1 angle, main axial plane/S1 angle, interlimb angle and hinge curvature), asymmetry, fold hinge/stretching lineation obliquity and structural facing pattern. The summary of the whole data depicts a coherent 3D structure showing several orders of minor folds. Sense of asymmetry of minor folds and stratigraphic order has been used to reconstruct a reliable large-scale structure, and to define the sheath fold shape

Blueschist · Cartography · Curvature · Geography · Geologic map · Geometry · Geomorphology · Hinge · Lineation · Physics · Structural geology · Subduction · Tectonics · Geological and Geochemical Analysis · Geological and Geophysical Studies Worldwide · Geological formations and processes · Geology · Paleontology

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