volcanic-tectonic depression 火山造构洼地
Nanpu depression volcanic rocks most beneficially reserviors develop in Beipu structural belt of Es3 period and Es1-3stage , secondly for the Nanpu No. 2 structural belt in Ng formation.
南堡凹陷火山岩最有利的勘探区带位于北堡构造带的沙3期和沙1-3期，其次为南堡2号构造带东营组。
Volcanic rock is well developed in south of east depression in Liaohe basin, and has the characteristics of thick and vast.
辽河盆地东部凹陷南部地区火山岩十分发育，具有厚度大、分布广的特点。
This has very important significance for the gas reservoir research of the Jurassic volcanic rocks in the Yingshan Fault Depression of the Songliao Basin.
这对松辽盆地莺山断陷侏罗系火山岩储气层的研究具有十分重要的意义。
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