The study shows that Cretaceous volcanics mainly consist of medium acidic volcanic lava and volcanoclastic rocks, with locally developed basic lava;
结果认为，白垩纪火山岩以中酸性火山熔岩和火山碎屑岩为主，局部发
基性熔岩；
The study shows that Cretaceous volcanics mainly consist of medium acidic volcanic lava and volcanoclastic rocks, with locally developed basic lava;
结果认为，白垩纪火山岩以中酸性火山熔岩和火山碎屑岩为主，局部发基性熔岩；
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