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Surface imprint of toroidal flow at retreating slab edges: The first geodetic evidence in the Calabrian subduction system
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| Zeitschriftentitel: | Geophysical Research Letters |
|---|---|
| Personen und Körperschaften: | , , |
| In: | Geophysical Research Letters, 44, 2017, 2, S. 845-853 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
American Geophysical Union (AGU)
|
| Schlagwörter: |
| author_facet |
Palano, M. Piromallo, C. Chiarabba, C. Palano, M. Piromallo, C. Chiarabba, C. |
|---|---|
| author |
Palano, M. Piromallo, C. Chiarabba, C. |
| spellingShingle |
Palano, M. Piromallo, C. Chiarabba, C. Geophysical Research Letters Surface imprint of toroidal flow at retreating slab edges: The first geodetic evidence in the Calabrian subduction system General Earth and Planetary Sciences Geophysics |
| author_sort |
palano, m. |
| spelling |
Palano, M. Piromallo, C. Chiarabba, C. 0094-8276 1944-8007 American Geophysical Union (AGU) General Earth and Planetary Sciences Geophysics http://dx.doi.org/10.1002/2016gl071452 <jats:title>Abstract</jats:title><jats:p>Dense GPS observations can help Earth scientists to capture the surface imprint of mantle toroidal flow at slab edges. We document this process in the Calabrian subduction system, where the Ionian slab rollback took place during the past 30 Ma, following a stepwise process driven by migration of lithospheric tearing. We found rotation rates of ~1.29°/Ma (counterclockwise) and ~1.74°/Ma (clockwise), for poles located close to the northern and southern slab edges, respectively. These small‐scale, opposite rotations occur along complex sets of active faults representing the present‐day lithospheric expression of the tearing processes affecting the southeastward retreating Ionian slab at both edges. The observed rotations are likely still young and the process more immature at the northern tear, where it is unable to reorient mantle fabric and therefore is unseen by SKS splitting.</jats:p> Surface imprint of toroidal flow at retreating slab edges: The first geodetic evidence in the Calabrian subduction system Geophysical Research Letters |
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10.1002/2016gl071452 |
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Surface imprint of toroidal flow at retreating slab edges: The first geodetic evidence in the Calabrian subduction system |
| title_unstemmed |
Surface imprint of toroidal flow at retreating slab edges: The first geodetic evidence in the Calabrian subduction system |
| title_full |
Surface imprint of toroidal flow at retreating slab edges: The first geodetic evidence in the Calabrian subduction system |
| title_fullStr |
Surface imprint of toroidal flow at retreating slab edges: The first geodetic evidence in the Calabrian subduction system |
| title_full_unstemmed |
Surface imprint of toroidal flow at retreating slab edges: The first geodetic evidence in the Calabrian subduction system |
| title_short |
Surface imprint of toroidal flow at retreating slab edges: The first geodetic evidence in the Calabrian subduction system |
| title_sort |
surface imprint of toroidal flow at retreating slab edges: the first geodetic evidence in the calabrian subduction system |
| topic |
General Earth and Planetary Sciences Geophysics |
| url |
http://dx.doi.org/10.1002/2016gl071452 |
| publishDate |
2017 |
| physical |
845-853 |
| description |
<jats:title>Abstract</jats:title><jats:p>Dense GPS observations can help Earth scientists to capture the surface imprint of mantle toroidal flow at slab edges. We document this process in the Calabrian subduction system, where the Ionian slab rollback took place during the past 30 Ma, following a stepwise process driven by migration of lithospheric tearing. We found rotation rates of ~1.29°/Ma (counterclockwise) and ~1.74°/Ma (clockwise), for poles located close to the northern and southern slab edges, respectively. These small‐scale, opposite rotations occur along complex sets of active faults representing the present‐day lithospheric expression of the tearing processes affecting the southeastward retreating Ionian slab at both edges. The observed rotations are likely still young and the process more immature at the northern tear, where it is unable to reorient mantle fabric and therefore is unseen by SKS splitting.</jats:p> |
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| author | Palano, M., Piromallo, C., Chiarabba, C. |
| author_facet | Palano, M., Piromallo, C., Chiarabba, C., Palano, M., Piromallo, C., Chiarabba, C. |
| author_sort | palano, m. |
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| description | <jats:title>Abstract</jats:title><jats:p>Dense GPS observations can help Earth scientists to capture the surface imprint of mantle toroidal flow at slab edges. We document this process in the Calabrian subduction system, where the Ionian slab rollback took place during the past 30 Ma, following a stepwise process driven by migration of lithospheric tearing. We found rotation rates of ~1.29°/Ma (counterclockwise) and ~1.74°/Ma (clockwise), for poles located close to the northern and southern slab edges, respectively. These small‐scale, opposite rotations occur along complex sets of active faults representing the present‐day lithospheric expression of the tearing processes affecting the southeastward retreating Ionian slab at both edges. The observed rotations are likely still young and the process more immature at the northern tear, where it is unable to reorient mantle fabric and therefore is unseen by SKS splitting.</jats:p> |
| doi_str_mv | 10.1002/2016gl071452 |
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| imprint | American Geophysical Union (AGU), 2017 |
| imprint_str_mv | American Geophysical Union (AGU), 2017 |
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| physical | 845-853 |
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| spelling | Palano, M. Piromallo, C. Chiarabba, C. 0094-8276 1944-8007 American Geophysical Union (AGU) General Earth and Planetary Sciences Geophysics http://dx.doi.org/10.1002/2016gl071452 <jats:title>Abstract</jats:title><jats:p>Dense GPS observations can help Earth scientists to capture the surface imprint of mantle toroidal flow at slab edges. We document this process in the Calabrian subduction system, where the Ionian slab rollback took place during the past 30 Ma, following a stepwise process driven by migration of lithospheric tearing. We found rotation rates of ~1.29°/Ma (counterclockwise) and ~1.74°/Ma (clockwise), for poles located close to the northern and southern slab edges, respectively. These small‐scale, opposite rotations occur along complex sets of active faults representing the present‐day lithospheric expression of the tearing processes affecting the southeastward retreating Ionian slab at both edges. The observed rotations are likely still young and the process more immature at the northern tear, where it is unable to reorient mantle fabric and therefore is unseen by SKS splitting.</jats:p> Surface imprint of toroidal flow at retreating slab edges: The first geodetic evidence in the Calabrian subduction system Geophysical Research Letters |
| spellingShingle | Palano, M., Piromallo, C., Chiarabba, C., Geophysical Research Letters, Surface imprint of toroidal flow at retreating slab edges: The first geodetic evidence in the Calabrian subduction system, General Earth and Planetary Sciences, Geophysics |
| title | Surface imprint of toroidal flow at retreating slab edges: The first geodetic evidence in the Calabrian subduction system |
| title_full | Surface imprint of toroidal flow at retreating slab edges: The first geodetic evidence in the Calabrian subduction system |
| title_fullStr | Surface imprint of toroidal flow at retreating slab edges: The first geodetic evidence in the Calabrian subduction system |
| title_full_unstemmed | Surface imprint of toroidal flow at retreating slab edges: The first geodetic evidence in the Calabrian subduction system |
| title_short | Surface imprint of toroidal flow at retreating slab edges: The first geodetic evidence in the Calabrian subduction system |
| title_sort | surface imprint of toroidal flow at retreating slab edges: the first geodetic evidence in the calabrian subduction system |
| title_unstemmed | Surface imprint of toroidal flow at retreating slab edges: The first geodetic evidence in the Calabrian subduction system |
| topic | General Earth and Planetary Sciences, Geophysics |
| url | http://dx.doi.org/10.1002/2016gl071452 |