于粉子山群沉积之后、大致17亿年前发生的粉子山事件使胶北地区基底最后固结。
After deposition of the Fenzishan Group, the Fenzishan event finally solidified the basement in the Jiaobei region 1700 .
于粉子山群沉积之后、大致17亿年前发生的粉子山事件使胶北地区基底最后固结。
After deposition of the Fenzishan Group, the Fenzishan event finally solidified the basement in the Jiaobei region 1700 .
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