The period of migration and accumulation of oil and gas is Triassic system and from Jurassic system to Cretaceous system.
两个成藏期分别是三叠纪末和侏罗纪末—白垩纪；
The problem of borehole instability in the Triassic system and the Carboniferous system has been kept as a major difficulty in the exploration and development of this oilfield.
塔河油田三叠系、石炭系井眼失稳问题一直是该油田勘探与开发的技术难点。
The dark mudstone in Triassic system of Tanzhuang Formation which rich for organic substance is mainly source rocks, which has large thickness, wide distribution and great burial depth.
研究区三叠系谭庄组有机质丰富的暗色泥岩是主要烃源岩，它厚度大、分布广，埋藏深度也大。
There is a normal deposition sequence stratigraphy beneath the lower wall of over-thrust fault, such as Jurassic, Triassic, Permian-Carboniferous, Cambrian-Ordovician system.
在逆冲断裂的下盘，是一套正常沉积层序的地层，分别为侏罗系、三叠系、石炭—二叠系、寒武—奥陶系等地层。
During Middle Triassic, the Gejiu area was in a special sedimental environment, i. e. in a restricted marginal sea basin within the continental rift system.
中三叠世，个旧矿区处于特殊的沉积环境—陆裂谷系中的局限边缘海盆。
During Middle Triassic, the Gejiu area was in a special sedimental environment, i. e. in a restricted marginal sea basin within the continental rift system.
中三叠世，个旧矿区处于特殊的沉积环境—陆裂谷系中的局限边缘海盆。
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