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Why Mt Etna?
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| Zeitschriftentitel: | Terra Nova |
|---|---|
| Personen und Körperschaften: | , , |
| In: | Terra Nova, 13, 2001, 1, S. 25-31 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
Wiley
|
| Schlagwörter: |
| author_facet |
Doglioni, C. Innocenti, F. Mariotti, G. Doglioni, C. Innocenti, F. Mariotti, G. |
|---|---|
| author |
Doglioni, C. Innocenti, F. Mariotti, G. |
| spellingShingle |
Doglioni, C. Innocenti, F. Mariotti, G. Terra Nova Why Mt Etna? Geology |
| author_sort |
doglioni, c. |
| spelling |
Doglioni, C. Innocenti, F. Mariotti, G. 0954-4879 1365-3121 Wiley Geology http://dx.doi.org/10.1046/j.1365-3121.2001.00301.x <jats:p>The Etna volcano is located in an apparently anomalous position on the hinge zone of the Apennines subduction and its Na‐alkaline geochemistry does not favour a magma source from the deep slab as indicated for the Aeolian K‐alkaline magmatism. The steeper dip of the regional foreland monocline at the front of the Apennines in the Ionian Sea than in Sicily, implies a larger rollback of the subduction hinge in the Ionian Sea. Moreover, the lengthening of the Apennines arc needs extension parallel to the arc. Therefore, the larger southeastward subduction rollback of the Ionian lithosphere with respect to the Hyblean plateau in Sicily, should kinematically produce right‐lateral transtension and a sort of vertical ‘slab window’ which might explain (i) the Plio‐Pleistocene alkaline magmatism of eastern Sicily (e.g. the Etna volcano) and (ii) the late Pliocene to present right lateral transtensional tectonics and seismicity of eastern Sicily. The area of transfer of different dip and rollback occurs along the inherited Mesozoic passive continental margin between Sicily and the oceanic Ionian Sea, i.e. the Malta escarpment.</jats:p> Why Mt Etna? Terra Nova |
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Why Mt Etna? |
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Why Mt Etna? |
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Why Mt Etna? |
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why mt etna? |
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Geology |
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2001 |
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<jats:p>The Etna volcano is located in an apparently anomalous position on the hinge zone of the Apennines subduction and its Na‐alkaline geochemistry does not favour a magma source from the deep slab as indicated for the Aeolian K‐alkaline magmatism. The steeper dip of the regional foreland monocline at the front of the Apennines in the Ionian Sea than in Sicily, implies a larger rollback of the subduction hinge in the Ionian Sea. Moreover, the lengthening of the Apennines arc needs extension parallel to the arc. Therefore, the larger southeastward subduction rollback of the Ionian lithosphere with respect to the Hyblean plateau in Sicily, should kinematically produce right‐lateral transtension and a sort of vertical ‘slab window’ which might explain (i) the Plio‐Pleistocene alkaline magmatism of eastern Sicily (e.g. the Etna volcano) and (ii) the late Pliocene to present right lateral transtensional tectonics and seismicity of eastern Sicily. The area of transfer of different dip and rollback occurs along the inherited Mesozoic passive continental margin between Sicily and the oceanic Ionian Sea, i.e. the Malta escarpment.</jats:p> |
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| description | <jats:p>The Etna volcano is located in an apparently anomalous position on the hinge zone of the Apennines subduction and its Na‐alkaline geochemistry does not favour a magma source from the deep slab as indicated for the Aeolian K‐alkaline magmatism. The steeper dip of the regional foreland monocline at the front of the Apennines in the Ionian Sea than in Sicily, implies a larger rollback of the subduction hinge in the Ionian Sea. Moreover, the lengthening of the Apennines arc needs extension parallel to the arc. Therefore, the larger southeastward subduction rollback of the Ionian lithosphere with respect to the Hyblean plateau in Sicily, should kinematically produce right‐lateral transtension and a sort of vertical ‘slab window’ which might explain (i) the Plio‐Pleistocene alkaline magmatism of eastern Sicily (e.g. the Etna volcano) and (ii) the late Pliocene to present right lateral transtensional tectonics and seismicity of eastern Sicily. The area of transfer of different dip and rollback occurs along the inherited Mesozoic passive continental margin between Sicily and the oceanic Ionian Sea, i.e. the Malta escarpment.</jats:p> |
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| imprint | Wiley, 2001 |
| imprint_str_mv | Wiley, 2001 |
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| spelling | Doglioni, C. Innocenti, F. Mariotti, G. 0954-4879 1365-3121 Wiley Geology http://dx.doi.org/10.1046/j.1365-3121.2001.00301.x <jats:p>The Etna volcano is located in an apparently anomalous position on the hinge zone of the Apennines subduction and its Na‐alkaline geochemistry does not favour a magma source from the deep slab as indicated for the Aeolian K‐alkaline magmatism. The steeper dip of the regional foreland monocline at the front of the Apennines in the Ionian Sea than in Sicily, implies a larger rollback of the subduction hinge in the Ionian Sea. Moreover, the lengthening of the Apennines arc needs extension parallel to the arc. Therefore, the larger southeastward subduction rollback of the Ionian lithosphere with respect to the Hyblean plateau in Sicily, should kinematically produce right‐lateral transtension and a sort of vertical ‘slab window’ which might explain (i) the Plio‐Pleistocene alkaline magmatism of eastern Sicily (e.g. the Etna volcano) and (ii) the late Pliocene to present right lateral transtensional tectonics and seismicity of eastern Sicily. The area of transfer of different dip and rollback occurs along the inherited Mesozoic passive continental margin between Sicily and the oceanic Ionian Sea, i.e. the Malta escarpment.</jats:p> Why Mt Etna? Terra Nova |
| spellingShingle | Doglioni, C., Innocenti, F., Mariotti, G., Terra Nova, Why Mt Etna?, Geology |
| title | Why Mt Etna? |
| title_full | Why Mt Etna? |
| title_fullStr | Why Mt Etna? |
| title_full_unstemmed | Why Mt Etna? |
| title_short | Why Mt Etna? |
| title_sort | why mt etna? |
| title_unstemmed | Why Mt Etna? |
| topic | Geology |
| url | http://dx.doi.org/10.1046/j.1365-3121.2001.00301.x |