Data · dataset · 2017
Subduction Initiation Simulation Results
Listed in CaltechDATA
How subduction initiates with mechanically unfavorable lithospheric heterogeneities is important and rarely studied.
Description
We investigate this with a geodynamic model for the Puysegur Incipient Subduction Zone (PISZ) south of New Zealand. The model incorporates a true free surface, elasto-visco-plastic rheology and phase changes.
Our predictions fit the morphology of the Puysegur Trench and Ridge and the deformation history on the overriding plate. We show how a new thrust fault forms and evolves into a smooth subduction interface, and how a preexisting weak zone can become a vertical fault inboard of the thrust fault during subduction initiation, consistent with two-fault system at PISZ. The model suggests that the PISZ may not yet be self-sustaining.
Read the rest (1 more)
We propose the Snares Zone (or Snares Trough) is caused by plate coupling differences between shallower and deeper parts, the tectonic sliver between two faults experiences strong rotation, and low density material accumulates beneath the Snares Zone.
Links
Where it is published
- CaltechDATA record data.caltech.edu/records/pkkq7-k9f78 ↗
landing page · from data caltech edu
- DOI doi.org/10.22002/d1.298 ↗
DOI / persistent id · from data caltech edu
Catalogue records · 1
- InvenioRDM API data.caltech.edu/api/records/pkkq7-k9f78 ↗
metadata API · from data caltech edu
Topics
- Stated by source
- Fault formation · geodynamics · Numerical simulation · Subduction initiation
- From keywords
- Earth & Environmental Science · Engineering · Geodynamics · Humanities · Life Sciences · Simulation · Social Science
Provenance · 1 source records, 17 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| CaltechDATA | pkkq7-k9f78 | 5 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · data caltech edu | connector:data_caltech_edu@1.0.0 | |
| concepts[field].anzsrc:field:370604 | mapping · data caltech edu | vocabulary-mapper@1.0.0 | keywords['Geodynamics'] |
| concepts[field].local:field:earth-environmental | mapping · data caltech edu | connector:data_caltech_edu@1.0.0 | |
| concepts[field].local:field:engineering | mapping · data caltech edu | connector:data_caltech_edu@1.0.0 | |
| concepts[field].local:field:humanities | mapping · data caltech edu | connector:data_caltech_edu@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · data caltech edu | connector:data_caltech_edu@1.0.0 | |
| concepts[field].local:field:social-science | mapping · data caltech edu | connector:data_caltech_edu@1.0.0 | |
| concepts[method].local:method:simulation | mapping · data caltech edu | vocabulary-mapper@1.0.0 | keywords['Numerical simulation'] |
| concepts[topic].invenio_subject:data_caltech_edu:fault-formation | source · data caltech edu | connector:data_caltech_edu@1.0.0 | |
| concepts[topic].invenio_subject:data_caltech_edu:geodynamics | source · data caltech edu | connector:data_caltech_edu@1.0.0 | |
| concepts[topic].invenio_subject:data_caltech_edu:numerical-simulation | source · data caltech edu | connector:data_caltech_edu@1.0.0 | |
| concepts[topic].invenio_subject:data_caltech_edu:subduction-initiation | source · data caltech edu | connector:data_caltech_edu@1.0.0 | |
| description | source · data caltech edu | connector:data_caltech_edu@1.0.0 | /metadata/description |
| publication_date | source · data caltech edu | connector:data_caltech_edu@1.0.0 | |
| title | source · data caltech edu | connector:data_caltech_edu@1.0.0 | /metadata/title |
| updated_date | source · data caltech edu | connector:data_caltech_edu@1.0.0 | |
| version_label | source · data caltech edu | connector:data_caltech_edu@1.0.0 |