Observations from seismic studies indicate that the lithospheric mantle at the intermediate depths where double Benioff zones occur is dry, which favours the proposed slab-unbending mechanism.
12.
Shoshonitic rocks tend to be associated with calc-alkaline island-arc subduction volcanism, but the K-rich shoshonites are generally younger and above deeper, steeper parts or the Benioff zone.
13.
Other faults in the near surface continental crust, such as the Benioff zone of the subducting Juan de Fuca Plate; being so deep their energy is dissipated.
14.
While much of the island arc experiences intermediate-depth earthquakes along a Wadati Benioff zone that dips steeply at 70? the area adjacent to the d'Entrecasteaux Ridge does not.
15.
Recent research has been able to better constrain the degree to which subducting oceanic mantle is hydrated using measurements of P-wave attenuation from localized earthquakes near the Wadati Benioff zone.
16.
When the Wadati Benioff zone ( earthquake foci in the mantle ) is less than 200 km deep, tholeiitic basalt magmas are produced ( Izu Lshima, Mount Hakone for instance ).
17.
These zones later became known as Wadati-Benioff zones, or simply Benioff zones, in honor of the seismologists who first recognized them, Kiyoo Wadati of Japan and Hugo Benioff of the United States.
18.
These zones later became known as Wadati-Benioff zones, or simply Benioff zones, in honor of the seismologists who first recognized them, Kiyoo Wadati of Japan and Hugo Benioff of the United States.
19.
Researchers say Wednesday's type of quake _ known as a slab or Benioff zone earthquake _ is the most frequent and potentially most benign of the types of earthquake to plague the region.
20.
Additionally, the 1960s saw several developments in geology, notably the discoveries of seafloor spreading and Wadati-Benioff zones, and this led to the rapid resurrection of the continental drift hypothesis and its direct descendant, the theory of plate tectonics.
