Summary
TongaLau.Q.2019 is a set of 3D models of Qp, Qs, Qp/Qs, and Qk (bulk attenuation) of the Tonga-Lau mantle wedge based on the 2009-2010 Ridge2000 East Lau Spreading Center Imaging project.
Quicklinks
Description
| Name | TongaLau.Q.2019 |
| Title | 3D attenuation models of the Tonga-Lau mantle wedge. |
| Type | 3-D Tomography Earth Model |
| Sub Type | Q-model |
| Year | 2019 |
| Short Description | 3D models of Qp, Qs, Qp/Qs, and Qk (bulk attenuation) of the Tonga-Lau mantle wedge based on the 2009-2010 Ridge2000 East Lau Spreading Center Imaging project. |
| Authors: | |
| S. Shawn Wei | |
| Department of Earth and Environmental Sciences | |
| Michigan State University | |
| East Lansing, MI 48824, USA | |
| Douglas A. Wiens | |
| Department of Earth and Planetary Sciences | |
| Washington University | |
| St. Louis, MO 63130, USA | |
| Previous Model | None |
| Reference Model | None |
| Model Download | TongaLau.Q.2019.nc (see metadata ), is the netCDF file for the model |
| Model Homepage | |
| Depth Coverage | 0 to 300 km, (best resolution 25-200 km) |
| Area | The Tonga-Lau-Fiji region (latitude: -24°/-15°, longitude: 176°/187°) |
| Data Set Description | [Wei and Wiens (2019, JGR) ] The dataset includes the absolute values of Qp, Qs, Q/Qs, and Qk of the Tonga-Lau mantle wedge from body wave tomography inversions of t*(P) and t*(S). |
| Supplemental Information | TongaLau.Q.2019-sup.cvs contains t* measurements and earthquake information. (The header explains each column) |
perpendicular to the Tonga Trench. Black contours show the local melt production rate modeled
by Wei et al. [2016], starting from 1%/Myr with a 2%/Myr increment. Other features are plotted in
the same manner as Fig. 7a. Topography and bathymetry are plotted above the images with a
10-times vertical exaggeration. Red triangles and red inverted triangles represent the volcanic
arc and the back-arc spreading center, respectively. White circles indicate the relocated
intermediate-depth earthquakes less than 55 km away from the cross section [Wei et al., 2017]
delineating the Tonga slab.
Citations and DOIs
To cite the original work behind this Earth model:
- Wei, S. S. and D. A. Wiens (2019), High bulk and shear attenuation due to partial melt in the Tonga-Lau back-arc mantle, J. Geophys. Res.: Solid Earth, 124, https://doi.org/10.1029/2019JB017527.
To cite IRIS DMC Data Products effort:
- Trabant, C., A. R. Hutko, M. Bahavar, R. Karstens, T. Ahern, and R. Aster (2012), Data Products at the IRIS DMC: Stepping Stones for Research and Other Applications, Seismological Research Letters, 83(5), 846–854, https://doi.org/10.1785/0220120032.
DOI for this EMC webpage:
References:
- Wei, S. S., Y. Zha, W. Shen, D. A. Wiens, J. A. Conder, and S. C. Webb (2016), Upper mantle structure of the Tonga-Lau-Fiji region from Rayleigh wave tomography, Geochem., Geophys., Geosyst., 17(11), 4705-4724, doi: https://doi.org/10.1002/2016GC006656.
- Wei, S. S., D. A. Wiens, P. E. van Keken, and C. Cai (2017), Slab temperature controls on the Tonga double seismic zone and slab mantle dehydration, Science Adv., 3(1), e1601755, doi: https://doi.org/10.1126/sciadv.1601755.
Credits
- Model provided by S. Shawn Wei
Timeline
- 2020-01-03
- online
