Outcrops of vesicular basalts.
Ref.:
- Liangshu Shu, Ping Deng, Bin Wang, Zhengzhong Tan, Xinqi Yu, and Yan Sun (2004): Lithology, kinematics and geochronology related to Late Mesozoic basin-mountain evolution in the Nanxiong-Zhuguang area, South China. Science in China, Series D (Earth Sciences), 47(8), 673-688.