Basic, acidic extrusive and volcanoclastic rocks are known as the main rock types.
石炭纪末
本区的岩浆活动开始,早二叠世晚和晚二叠世早是两个主活动。
Basic, acidic extrusive and volcanoclastic rocks are known as the main rock types.
石炭纪末本区的岩浆活动开始,早二叠世晚和晚二叠世早是两个主活动。
The study shows that Cretaceous volcanics mainly consist of medium acidic volcanic lava and volcanoclastic rocks, with locally developed basic lava;
，白垩纪火山岩以中酸性火山熔岩和火山碎屑岩主，局部发育基性熔岩；
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