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Prof. Clifford Thurber from University of Wisconsin-Madison Visited IGG TEXT SIZE:A A A

Invited by State Key Laboratory of Geodesy and Earth’s Dynamics (SKLGED), prof. Clifford Thurber from University of Wisconsin-Madison visited Institute of Geodesy and Geophysics(IGG) and gave an academic report in title “Seismic Investigation of the Magma System beneath Laguna del Maule, Chile” on April 16.

The report firstly introduced the research background of the Laguna del Maule (LdM) volcano from field mapping, rock age determination, InSAR observation, and dynamics models. He also briefly introduced the principles of InSAR and seismic tomography. The seismic data from the mobile seismic arrays were comprehensively used to obtain seismic surface wave dispersion data in the study area. He used the tomographic imaging technique to construct a three-dimensional shear wave velocity model of the LdM volcanic area, revealing a low velocity below the volcanic lake. which is considered to be a magma chamber. The position of this low-velocity body is consistent with the results of gravity and geodesy studies, i.e., fluid or partial melting in the center of the crust swelling, and it is also consistent with the rheolite's extraction of this petrophysical character from the relatively cold crystalline paste. The report has attracted many students and researchers in different fields of geophysics and geodesy. During the discussion, the participants conducted in-depth discussions and achieved good exchange results.

Clifford Thurber is currently a UW-Madison professor of Earth Sciences. He is mainly engaged in seismic tomography. His research interests include subduction zones, fault zones, volcanoes, and geothermal fields, and seismic source parameters using seismology and geodetic observations.


                                                                       Prof. Clifford Thurber was giving his report.


Institute of Geodesy and Geophysics. Chinese Academy of Sciences
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