It is believed that the albite-potash-feldspar-greenschists in the middle Proterozoic Langshan Group in Tanyaokou District are synsedimentary potassic spilite (or poenite) based on the following facts and features: ...
Cenxi Permian basalts are the late Palaeozoic island-arc type basalts first found in South China. REE and trace element characteristics and distribution patterns show that this volcanic formation, which has been isoto...
Project supported by the National Natural Science Foundation of China
The genesis of spilite-keratophyric volcanic rock assemblages being the important part of submarine volcanic rocks has long been in contention, the focus of which is the origin of sodium. Basing on the discoveries of ...