Insights into dyke emplacement mechanisms using new high-resolution 3D digital outcrop methods

Gregory Dering

doi:10.26182/5eab97f21c63d

Insights into dyke emplacement mechanisms using new high-resolution 3D digital outcrop methods

Gregory Dering

School of Earth and Oceans

Research output: Thesis › Doctoral Thesis

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Abstract

Mechanics and dynamics of magmatic dyke emplacement, including tip zone rupture, segment linkage, and dyke-parallel shear failure are elucidated by high precision digital outcrop analysis. New approaches are derived for the structural analysis of dykes that employ digital photogrammetry and Unmanned Aerial Vehicles to capture 3D measurements at exceptionally high resolution (3-5 mm per pixel) across 5 orders of magnitude (10‾² to 10² m), which are applied to outstanding exposures of dyke swarms from Albany, southwestern Australia, and the Sierra Nevada, USA and compared analytical solutions from linear elasticfracture mechanics.

Original language	English
Qualification	Doctor of Philosophy
Awarding Institution	The University of Western Australia
Supervisors/Advisors	Fiorentini, Marco, Supervisor Tohver, Eric, Supervisor Gee, Mary, Supervisor Barnes, Steve, Supervisor Callow, Nik, Supervisor Micklethwaite, Steven, Supervisor
Award date	17 Feb 2020
DOIs	https://doi.org/10.26182/5eab97f21c63d
Publication status	Unpublished - 2020

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10.26182/5eab97f21c63d

TH20 63 THESIS - DOCTOR OF PHILOSOPHY - DERING, Gregory Matthew - 2020
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Cite this

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abstract = "Mechanics and dynamics of magmatic dyke emplacement, including tip zone rupture, segment linkage, and dyke-parallel shear failure are elucidated by high precision digital outcrop analysis. New approaches are derived for the structural analysis of dykes that employ digital photogrammetry and Unmanned Aerial Vehicles to capture 3D measurements at exceptionally high resolution (3-5 mm per pixel) across 5 orders of magnitude (10‾2 to 102 m), which are applied to outstanding exposures of dyke swarms from Albany, southwestern Australia, and the Sierra Nevada, USA and compared analytical solutions from linear elasticfracture mechanics.",

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AB - Mechanics and dynamics of magmatic dyke emplacement, including tip zone rupture, segment linkage, and dyke-parallel shear failure are elucidated by high precision digital outcrop analysis. New approaches are derived for the structural analysis of dykes that employ digital photogrammetry and Unmanned Aerial Vehicles to capture 3D measurements at exceptionally high resolution (3-5 mm per pixel) across 5 orders of magnitude (10‾2 to 102 m), which are applied to outstanding exposures of dyke swarms from Albany, southwestern Australia, and the Sierra Nevada, USA and compared analytical solutions from linear elasticfracture mechanics.

KW - dyke emplacement

KW - structural geology

KW - digital outcrop mapping

KW - photogrammetry

KW - dyke swarm

KW - Fracture mechanics

KW - structure-from-motion

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M3 - Doctoral Thesis

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Insights into dyke emplacement mechanisms using new high-resolution 3D digital outcrop methods

Abstract

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