regional unconformity meaning in English
区域不整合
Examples
- Regarded regional unconformity , transformation basement of tectonic regime , incised water channels , discontinuous surface of sidementary facies and exposed surface of lowstand as boundary of sequence , the palaeozoic in the researched area can be divided into three supersequence and fourteen sequence
以区域不整合面、构造体制转换面、水道下切谷、沉积相突变面及低水位期暴露面作为层序界面，将研究区古生界划分为3个层序组和14个层序。 - The features of these sequences arerbefore sequence i deposited during the rapid subsidence of the depression , the range of the sediment is limited . sequence ii is the first series of source and reservoir rocks of the depression . there are regional unconformity at the bottom of the sequence iii . the rock type are variety . this sequence is evaluated as good source rock , sequence iv is associated with the first section of duhongmu formation , thick mudstone at the bottom and the thick single sandston are the main rock type . this sequence are evaluated as good source rock and reservoir . sequence v associated with the second and the third section of duhongmu . which is mainly mudstone and can be regional capping rocks
层序对应于阿尔善组二段，为深色泥岩与砂砾岩不等厚互层，是本区的第一套烃源岩和储集层，可以作为本区储层。层序对应腾格尔组，此时凹陷扩张，沉积层底部具有区域性的冲刷面，岩性变化大，是较好的生油层。层序对应都红木组一段，下部泥岩发育，单砂层较厚，是主要的生油层和储层。