The Long-Wavelength Mantle Structure, and the supercontinent Evolution since the Paleozoic

The Earth’s lower mantle structure,as revealed by seismic tomography studies,is best characterized by two large low seismic velocity provinces(i.e.,LLSVP)beneath Africa and Pacific and their surrounding,circum-

Petrogenesis of the Paleozoic and Mesozoic Volcanic Rocks in Northwest China

Recently,we carried out the National Nature Science Foundation of China （No.41273033） and Special Fund for Basic Scientific Research of Central Colleges （No.310827153407） and made some advances as follows.