<正>Objective The amalgamation and breakup mechanisms of the Rodinia supercontinent during the Meso-and Neoproterozoic have been the focus of much research.Howe
<正>Objective The Sidingheishan mafic-ultramafic intrusion is located in the eastern part of the North Tianshan Mountains.This work used zircon U-Pb age data,bu
The onset of the Cambrian witnessed the diversification of "small shelly fossils(SSF)", which affected carbonate depositional system. One of the problematic SSF