A graphical method and workflow for the generation of structure contours for horizontal cylindrical folds

Potts, Graham J ORCID: 0000-0002-3746-7734 (2024) A graphical method and workflow for the generation of structure contours for horizontal cylindrical folds Journal of Structural Geology, 184. p. 105157. ISSN 0191-8141, 1873-1201

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Abstract

A graphical method developed for the construction of structure contours for inclined planar surfaces has been extended to curved or folded surfaces with cylindrical geometries and horizontal axes. These structure contours can be used to constrain the outcrop trace of a folded contact on a geological map. The extended method requires, as a minimum, a field of orientation data and the map position of a single elevation on the contact under investigation. The method utilises orientation data collected on and around a partially mapped trace of a folded contact to constrain the outcrop trace throughout a geological map. The method uses a vertical cross-section that is parallel to the profile plane of any folds present. Crest, trough and hinge points identified in the cross-section can be projected on to the geological map in their correct positions and elevations. Similarly, structure contours on fold axial surfaces can be projected on to the geological map and the contours used to locate the axial traces of cylindrical folds with horizontal axes.

Item Type:	Article
Uncontrolled Keywords:	Structure contours, Cylindrical folds, Axial traces
Divisions:	Faculty of Science & Engineering > School of Environmental Sciences
Depositing User:	Symplectic Admin
Date Deposited:	31 May 2024 13:36
Last Modified:	28 Feb 2026 01:12
DOI:	10.1016/j.jsg.2024.105157
Open Access URL:	https://doi.org/10.1016/j.jsg.2024.105157
Related Websites:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3181938
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