晚奥陶世 meaning in English
late ordovician epoch
upper ordovician
Examples
- This was the result from the large - scale regression in the late ordovician
这是晚奥陶世晚期大规模海退的结果。 - The zircon u - pb ages of three major plutons are 481 ma , 461 ma and 452 ma respectively
获锆石u - pb年龄值为442ma ，为晚奥陶世。 - All these ductile shear zones are characterized by northward thrusting . the u - pb dating on zircons from the bedded gabbro of the qimanyuter ophiolite melange gives an age of 526 ? 1 ma ( early cambrian )
在其曼于特蛇绿岩的层状细粒辉长岩中获得了锆石u - pb年龄值为526 1ma (早寒武世) ，它被晚奥陶世花岗岩侵入。 - We have concluded that the structural movement of the area can be divided into three stages : the stretching stage from simian to early ordovician , the extrusion and rising stage from middle and late ordovician to jurassic and stable depressed stage of foreland basin slope from cretaceous to neozoic
经研究认为研究区的构造运动，主要分为震旦纪到早奥陶世的拉张阶段、中晚奥陶世到侏罗纪的挤压隆升剥蚀阶段以及白垩纪到新生代的前陆盆地斜坡稳定沉降阶段。 - 2 . tazhong ancient uplift originated from normal fault in paleozoic , hydrocarbon formed in ordovician period , structure reverse made tazhong uplift form from the middle ordovician period to the late ordovician period , and it provided geologic background for the deposit of silurian - devonian stratum . tazhong uplift formed at the end devonian , ancient reservoir was destroyed and asphaltum sandstone formed , structure deformation more destroyed ancient reservoir in early permian , after then the major of structure deformation is regulation
塔中隆起源于早古生代拉张背景下的正断层，寒武-奥陶纪为其烃源岩形成的重要时期；早奥陶世末-晚奥陶世末的构造反转是塔中隆起的主要形成期，同时也为志留系形成地层及复合圈闭提供了古地理背景；志留?泥盆纪塔里木盆地南北缘均转为活动大陆边缘，形成了大量的断裂和不整合；泥盆纪末塔中鼻状隆起基本定型，古油藏遭受破坏，形成了沥青砂岩；早二叠世晚期的构造变形使古油藏遭受进一步的破坏；二叠纪后构造变动主要以调节为主。