Abstract: A large amount of oncolites popularly named “Chuanshan balls” occur universally in the Lower Permian Chuanshan Formation in South China. These kinds of oncolites have the following characteristics: wide di...
This Research was supported by the foundations from the National Committee of Education,the Cenire for Materials Analysis and the Laboratory of Mineral Deposits,Nanjing University.
Pelagic manganese nodules from the East Pacific Ocean have been studied using polarizing,scanning electron and transmission electron microscopes. It has been revealed that the manganesenodules are composed of cores an...