neocene period 晚第三纪
ADJ/N → a former word for Neogene
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。
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