Magmatism controls global oceanic transform fault topography
- Publication type:
- Journal article
- Metadata:
-
- Abstract
- <jats:title>Abstract</jats:title><jats:p>Oceanic transform faults play an essential role in plate tectonics. Yet to date, there is no unifying explanation for the global trend in broad-scale transform fault topography, ranging from deep valleys to shallow topographic highs. Using three-dimensional numerical models, we find that spreading-rate dependent magmatism within the transform domain exerts a first-order control on the observed spectrum of transform fault depths. Low-rate magmatism results in deep transform valleys caused by transform-parallel tectonic stretching; intermediate-rate magmatism fully accommodates far-field stretching, but strike-slip motion induces across-transform tension, producing transform strength dependent shallow valleys; high-rate magmatism produces elevated transform zones due to local compression. Our models also address the observation that fracture zones are consistently shallower than their adjacent transform fault zones. These results suggest that plate motion change is not a necessary condition for reproducing oceanic transform topography and that oceanic transform faults are not simple conservative strike-slip plate boundaries.</jats:p>
- Autoren
- Xiaochuan Tian
- Mark D Behn
- Garrett Ito
- Jana C Schierjott
- Boris JP Kaus
- Anton A Popov
- DOI
- 10.1038/s41467-024-46197-9
- eISSN
- 2041-1723
- Ausgabe der Veröffentlichung
- 1
- Zeitschrift
- Nature Communications
- Sprache
- en
- Artikelnummer
- 1914
- Online publication date
- 2024
- Status
- Published online
- Herausgeber
- Springer Science and Business Media LLC
- Herausgeber URL
- http://dx.doi.org/10.1038/s41467-024-46197-9
- Datum der Datenerfassung
- 2024
- Titel
- Magmatism controls global oceanic transform fault topography
- Ausgabe der Zeitschrift
- 15
Data source: Crossref
- Other metadata sources:
-
- Abstract
- Oceanic transform faults play an essential role in plate tectonics. Yet to date, there is no unifying explanation for the global trend in broad-scale transform fault topography, ranging from deep valleys to shallow topographic highs. Using three-dimensional numerical models, we find that spreading-rate dependent magmatism within the transform domain exerts a first-order control on the observed spectrum of transform fault depths. Low-rate magmatism results in deep transform valleys caused by transform-parallel tectonic stretching; intermediate-rate magmatism fully accommodates far-field stretching, but strike-slip motion induces across-transform tension, producing transform strength dependent shallow valleys; high-rate magmatism produces elevated transform zones due to local compression. Our models also address the observation that fracture zones are consistently shallower than their adjacent transform fault zones. These results suggest that plate motion change is not a necessary condition for reproducing oceanic transform topography and that oceanic transform faults are not simple conservative strike-slip plate boundaries.
- Addresses
- Department of Earth and Environmental Sciences, Boston College, Chestnut Hill, MA, USA. x.tian@bc.edu.
- Autoren
- Xiaochuan Tian
- Mark D Behn
- Garrett Ito
- Jana C Schierjott
- Boris JP Kaus
- Anton A Popov
- DOI
- 10.1038/s41467-024-46197-9
- eISSN
- 2041-1723
- Externe Identifier
- PubMed Identifier: 38429287
- PubMed Central ID: PMC10907720
- Funding acknowledgements
- National Science Foundation (NSF): NSF-OCE #19-28776
- European Research Council: ERC CoG MAGMA #771143
- European Research Council: 771143
- National Science Foundation (NSF): NSF-OCE #19-28804
- Open access
- true
- ISSN
- 2041-1723
- Ausgabe der Veröffentlichung
- 1
- Zeitschrift
- Nature communications
- Sprache
- eng
- Medium
- Electronic
- Online publication date
- 2024
- Open access status
- Open Access
- Paginierung
- 1914
- Datum der Veröffentlichung
- 2024
- Status
- Published
- Publisher licence
- CC BY
- Datum der Datenerfassung
- 2024
- Titel
- Magmatism controls global oceanic transform fault topography.
- Sub types
- research-article
- Journal Article
- Ausgabe der Zeitschrift
- 15
Files
https://www.nature.com/articles/s41467-024-46197-9.pdf https://europepmc.org/articles/PMC10907720?pdf=render
Data source: Europe PubMed Central
- Abstract
- Oceanic transform faults play an essential role in plate tectonics. Yet to date, there is no unifying explanation for the global trend in broad-scale transform fault topography, ranging from deep valleys to shallow topographic highs. Using three-dimensional numerical models, we find that spreading-rate dependent magmatism within the transform domain exerts a first-order control on the observed spectrum of transform fault depths. Low-rate magmatism results in deep transform valleys caused by transform-parallel tectonic stretching; intermediate-rate magmatism fully accommodates far-field stretching, but strike-slip motion induces across-transform tension, producing transform strength dependent shallow valleys; high-rate magmatism produces elevated transform zones due to local compression. Our models also address the observation that fracture zones are consistently shallower than their adjacent transform fault zones. These results suggest that plate motion change is not a necessary condition for reproducing oceanic transform topography and that oceanic transform faults are not simple conservative strike-slip plate boundaries.
- Date of acceptance
- 2024
- Autoren
- Xiaochuan Tian
- Mark D Behn
- Garrett Ito
- Jana C Schierjott
- Boris JP Kaus
- Anton A Popov
- Autoren-URL
- https://www.ncbi.nlm.nih.gov/pubmed/38429287
- DOI
- 10.1038/s41467-024-46197-9
- eISSN
- 2041-1723
- Externe Identifier
- PubMed Central ID: PMC10907720
- Funding acknowledgements
- National Science Foundation (NSF): NSF-OCE #19-28776
- National Science Foundation (NSF): NSF-OCE #19-28776
- National Science Foundation (NSF): NSF-OCE #19-28804
- National Science Foundation (NSF): NSF-OCE #19-28804
- EC | EU Framework Programme for Research and Innovation H2020 | H2020 Priority Excellent Science | H2020 European Research Council (H2020 Excellent Science - European Research Council): ERC CoG MAGMA #771143
- EC | EU Framework Programme for Research and Innovation H2020 | H2020 Priority Excellent Science | H2020 European Research Council (H2020 Excellent Science - European Research Council): ERC CoG MAGMA #771143
- Ausgabe der Veröffentlichung
- 1
- Zeitschrift
- Nat Commun
- Sprache
- eng
- Country
- England
- Paginierung
- 1914
- PII
- 10.1038/s41467-024-46197-9
- Datum der Veröffentlichung
- 2024
- Status
- Published online
- Titel
- Magmatism controls global oceanic transform fault topography.
- Sub types
- Journal Article
- Ausgabe der Zeitschrift
- 15
Data source: PubMed
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