Fracturing and dome-shaped surface displacements above laccolith intrusions: Insights from Discrete Element Method modeling
- Alexandra Morand,
- Sam Poppe
, - A Cornillon,
- C Harnett,
- M Heap,
- D Mège
Alexandra Morand
Centrum Badań Kosmicznych Polskiej Akademii Nauk (CBK PAN)
Corresponding Author:
A Cornillon
Département de Géosciences, École Normale Supérieure, PSL Université, Centrum Badań Kosmicznych Polskiej Akademii Nauk (CBK PAN)
C Harnett
UCD School of Earth Sciences, UCD University College Dublin
M Heap
Institut Universitaire de France (IUF), Institut Terre et Environnement de Strasbourg, UMR 7063, Université de Strasbourg, CNRS
D Mège
Centrum Badań Kosmicznych Polskiej Akademii Nauk (CBK PAN)
Abstract
• We present a two-dimensional Discrete Element Method model that simulates host rock fracturing during the inflation of a magmatic laccolith. • The host rock toughness and stiffness along with source depth control spatial fracture distribution between two end-members. • At a constant injection rate, the vertical displacement maximum and lateral extent show sudden changes in response to host rock fracturing.24 May 2024Submitted to ESS Open Archive 28 May 2024Published in ESS Open Archive
