Effects of volcanic activities in Ordovician Wufeng-Silurian Longmaxi period on organic-rich shale in the Upper Yangtze area, South China |
Lanyu WU,Yongchao LU,Shu JIANG,Xiaofeng LIU,Guisong HE |
|
Fig. 6. The relationship between volcanic activity and marine biological productivity (The abundance of acritarch is from Shen et al.[ |