The Calabrian Arc: three-dimensional modelling of the subduction interface.
The Calabrian Arc: three-dimensional modelling of the subduction interface.
复制标题
Calabrian弧:俯冲界面的三维建模。
DOI:
10.1038/s41598-017-09074-8
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发表时间:
2017-08-21
影响因子:
4.6
通讯作者:
Basili R
中科院分区:
文献类型:
--
作者:
Maesano FE;Tiberti MM;Basili R
The Calabrian Arc is a one-of-a-kind subduction zone, featuring one of the shortest slab segments (<150 km), one of the thickest accretionary wedges, and one of the oldest oceanic crust in the world. Despite a convergence rate of up to 5 mm/y and well-known intraslab seismicity below 40 km, its shallow interface shows little signs of seismic activity. Nonetheless, it has been attributed as generating historical large earthquakes and tsunamis. To gain insights into this subduction zone, we first made a geological reconstruction of the shallower slab interface (<20 km) and its overlying accretionary wedge by interpreting a grid of 54 seismic reflection lines (8,658 km) with 438 intersections within an area of 105 km2. Then, we constrained a deeper portion of the slab surface (40–350 km) using the seismicity distribution. Finally, we interpolated the two parts to obtain a seamless 3D surface highlighting geometric details of the subduction interface, its lateral terminations and down-dip curvature, and a slab tear at 70–100 km depth. Our 3D slab model of the Calabrian Arc will contribute to understanding of the geodynamics of a cornerstone in the Mediterranean tectonic puzzle and estimates of seismic and tsunami hazards in the region.
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影响因子:
3.9
作者:
Carafa, Michele M. C.;Barba, Salvatore;Bird, Peter
通讯作者:
Bird, Peter
影响因子:
4.6
作者:
Basili, R.;Tiberti, M. M.;Lorito, S.
通讯作者:
Lorito, S.
影响因子:
5.3
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通讯作者:
Riguzzi, Federica
影响因子:
3.9
作者:
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通讯作者:
Klaeschen, Dirk
影响因子:
56.9
作者:
Bletery, Quentin;Thomas, Amanda M.;De Barros, Louis
通讯作者:
De Barros, Louis