The seal develop widely, and Neocene marine mudstone is the regional seal.
盖层发育广泛，区域性盖层是上第三系海相泥岩。
The volcanic rocks of Neocene and Eogene in Nanpu depression is mainly distribute in Ng, Ed and Es formation.
南堡凹陷古近系及新近系火山岩主要分布于馆陶组、东营组、沙河街组。
But faults activities incredibly weak, most of the faults didn't active in Neocene tectonic period in this area.
而在新近纪，研究区内断裂(或构造)活动极其微弱，多数断裂没有活动。
Extension in NW-SE direction in Eogene Period. Japan Sea pulled open in Eo-gene and completed as the patterns as nowadays in Neocene period;
古近纪时为北西—南东向拉张构造应力场，日本海从古近纪开始逐渐拉开，直到新近纪完成现在的格局；
Linjinyu Islet, located along the western coast of Taiwan Strait, is a small typical volcanic island consisted of pure volcanic rocks with a lava eruption age of Neocene.
由纯火山岩组成的林进屿位于台湾海峡西部近岸海中，熔岩喷发年代为上新世。
Linjinyu Islet, located along the western coast of Taiwan Strait, is a small typical volcanic island consisted of pure volcanic rocks with a lava eruption age of Neocene.
由纯火山岩组成的林进屿位于台湾海峡西部近岸海中，熔岩喷发年代为上新世。
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