Mechanical models to estimate the paleostress state from igneous intrusions

Stephens, Tara L.; Walker, Richard J.; Healy, David; Bubeck, Alodie; England, Richard W.

doi:https://doi.org/10.5194/se-9-847-2018

Articles | Volume 9, issue 4

https://doi.org/10.5194/se-9-847-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/se-9-847-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 9, issue 4

Research article

|

09 Jul 2018

Research article |

| 09 Jul 2018

Mechanical models to estimate the paleostress state from igneous intrusions

Tara L. Stephens, Richard J. Walker, David Healy, Alodie Bubeck, and Richard W. England

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Final revised paper (published on 09 Jul 2018)
Supplement to the final revised paper
Preprint (discussion started on 21 Mar 2018)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC1: 'Review of Stephens et al', Anonymous Referee #1, 17 Apr 2018
- AC1: 'Reply to reviewers comments for: “Mechanical models to estimate the paleostress state from igneous intrusions” by Tara L. Stephens et al.', Tara Stephens, 15 Jun 2018
RC2: 'Mechanical models to estimate the paleostress state from igneous intrusions', Nicolas Le Corvec, 25 Apr 2018
- AC2: 'Reply to reviewers comments for: “Mechanical models to estimate the paleostress state from igneous intrusions” by Tara L. Stephens et al.', Tara Stephens, 15 Jun 2018

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

AR by Tara Stephens on behalf of the Authors (15 Jun 2018) Author's response Manuscript

ED: Publish as is (21 Jun 2018) by Gwenn Peron-Pinvidic

ED: Publish as is (21 Jun 2018) by Federico Rossetti (Executive editor)

AR by Tara Stephens on behalf of the Authors (27 Jun 2018) Manuscript

Short summary

We present mechanical models that use the attitude and opening angles of igneous sills to constrain stress axes, the stress ratio, and relative magma pressure during dilation. The models can be applied to any set of dilated structures, including dikes, sills, or veins. Comparison with paleostress analysis for coeval faults and deformation bands indicates that sills can be used to characterise the paleostress state in areas where other brittle deformation structures (e.g. faults) are not present.