The Research Of Deep Electrical Structure And Tectonics Of The Southeast Of Tibet

The collision of the Indian plate and the Eurasian plate forms the southeastern of Tibet.The geological structure there is very complex,contains Bangong Nujiang Suture Zone,jiali fault belt and so on.We should study the geology there,then we can solve some geological problems.The research on the electrical structure of the southeastern of the Tibet is meaningful.It can help.us understand the Qinghai-Tibet Plateau formation and the changes.SinoProbe-01 is a research project.The program’s goal is to establish magnetotelluric array area network in China.We have done lots of MT work in Tibet.I will use the quality MT data in the southeastern of Tibet to do some research about electric structure of the lithosphere.During the process,some advanced MT processing technology will be applied.The paper include the MT data processing methods,specifically the far reference technology and the data selection.After getting the quality data,we analysis the electric spindle and the skewness.By these two steps,we will know the southeastern of Tibet’s geological direction.Several different inverse methods will be introduced in chapter 4.After reading some geological books about the southeastern of Tibet,I design two layered models.I use the two models to produce MT datas.With the datas,I do some inversions.Later some discussions about the inversion results is showed.After considering the geological structure and the distribution of measuring points,I pull four long profiles.Then I do NLGG Inversion.According the results,I explain each profile’s electrical structure.Some abnormal electrical structures reflet the falut’s deep structural features.The deep struct of the southeastern of Tibet shows high conductivity characteristics,maybe partial melting substance and saline fluids is the reason.In the last,I explain the electrical structure.With the geology,I try to do some geological explanations.The anomaly of gravity and magnetic in the study area is also important,with them,I include some geophysical characteristics of the southeastern of Tibet.