震旦系（Sinian System）的时代属新元古代震旦纪。其下与南华系相接，其上被寒武系所覆。
后来在西南非洲、加拿大、西伯利亚、英国、瑞典，以及我国的Ediacaran（震旦系）发现 大部分是腔肠动物：水母、水螅、锥石、钵水母、海鳃类等，还有环节动物、节肢动物等
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It took shape in late Mesozoic Era. The basement is the metamorphic rock at Siniansystem or Pre- Sinian system and has deposited the stratum from Triassic Period to QuaternaryPeriod.
其形成于晚中生代，基底为震旦系或前震旦系变质岩，沉积了三叠纪至第四纪的地层。
参考来源 - 南黄海盆地北部中、新生界沉积特征及油气远景·2,447,543篇论文数据，部分数据来源于NoteExpress
威远震旦系白云岩层是年代老、结构复杂的储集层。
The sinian dolomite in Weiyuan is an old reservoir rock of complex structure.
威远震旦系气藏为块状含水，储层是裂缝-洞孔型。
The Senian pool in weiyuan gas field is a large massive one with water, it is fracture-vug and pore type.
下构造层由震旦系—泥盆系构成，所谓阿-满低梁主要即发育于该构造层。
The lower structure layer consists of the Sinian to the Devonian, in which the A-Man low ridge is observed.
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