2011 Fiscal Year Final Research Report
Study on a mantle upwelling in southwestern Japan and its tectonic implications
| Project/Area Number |
21740318
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (B)
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Solid earth and planetary physics
|
|---|
| Research Institution | Tohoku University |
|---|
Principal Investigator |
|
|---|
| Project Period (FY) |
2009 – 2011
|
| Keywords | 地震波速度構造 / トモグラフィ / 上昇流 / 紀伊半島 |
|---|
| Research Abstract |
We estimated three-dimensional seismic velocity and attenuation structures beneath southwestern Japan using a large number of high-quality seismic waveform data. The obtained results that a large low-velocity and high-attenuation zone is distributed in the upper mantle and appears to penetrate into the Philippine Sea slab locally beneath the Kii Peninsula. Seismo-and volcano-tectonics beneath SW Japan may be controlled by the mantle upwelling which is probably related to deep dehydration of the Pacific slab.
|
-
-
-
-
-
-
-
-
-
-
[Journal Article] Tectonic setting of volcanic centers in subduction zones : 3D structure of mantle wedge and arc crust2009
Author(s)
Tamura, Y., J. Nakajima, S. Kodaira, and A. Hasegawa
-
Journal Title
In Volcanic and Tectonic Hazard Assessment for Nuclear Facilities, edited by Conner, C., Chapman, N. A, Conner, L.
Pages: 177-194
Peer Reviewed
-
[Journal Article] Helium isotope variations along the Niigata-Kobe Tectonic Zone, central Japan, In The Lithosphere ; Geochemistry, Geology and Geophysics, edited by Anderson, J. E., and Coates, R. W.2009
Author(s)
Umeda, K., A. Ninomiya, K. Shimada, and J. Nakajima
-
Journal Title
Nova Science Publisher Inc.
Pages: 141-170
Peer Reviewed
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
