The Guangxi province is considered as a unique region in southeastern China due to its geographical location, tectonic and thermal activities. It is located geographically at the crossroads of Yangtze plate and Cathaysia landmass constituting a collision zone between the two blocks. In this study, we aim to further understand the lithospheric magnetic structure, thermal activity, and seismicity through mapping the Curie point depth (CPD) for Guangxi. The CPD are obtained by the method of power-density spectrum analysis based on the aeromagnetic anomaly data. Results of this study indicate that the CPD of Guangxi at a depth of 19~40 km (indicate that the CPD over the study region ranges from 19 km to 40 km). We found a weakly negative nonlinear correlation between the CPD and heat flow. The Curie isotherm generally lies above the Moho in this region but deepens into the mantle in some locations, notably beneath the middle of Guangxi. Earthquakes concentrated in the concave field and transition band of the CPD. The distribution of faults and igneous rocks have significant influences on the CPD.
Presentation Date: Monday, October 15, 2018
Start Time: 1:50:00 PM
Location: Poster Station 9
Presentation Type: Poster
