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- Lowstand bottom fan in upper Ordovician series. . 上奥陶统低水位期盆底扇体;
- Middle Upper Ordovician is one of the main target for oil/gas exploration in Tazhong area. 中上奥陶统是塔中地区最主要的油气勘探目的层之一。
- The lowering of ()~(87)Sr/()~(86)Sr ratio of the Upper Ordovician marine carbonate may have a relation to the influence of the mantle source fluid. 塔里木盆地塔中地区上奥陶统部分海相碳酸盐87Sr/86Sr比值的降低可能与深部流体的影响有关;
- It intruded in Upper Ordovician Shifeng Formation and is dated as 333 86Ma of U Pb concordant age of zircon, which belongs to middle stage of Variscan. 岩体侵入上奥陶统石缝组(O3s) , 岩体的锆石U?Pb 一致线年龄333-86 Ma, 属华力西中期。
- The two karat developing periods for the Middle and Upper Ordovician in the Lunnan area are consistent with two transgressions of the Carboniferous. 轮南地区发育的两期岩溶与石炭纪两次较大的海侵时间相一致。
- The deposit is located at Qimantage back-arc rift structure zone, and hosted within Tieshidasi group volcanic rocks of upper Ordovician. 肯德可克钴铋金矿床是近几年来在东昆仑地区发现的重要钴多金属矿床类型。
- Baidingshan Formation of upper Ordovician is distributed in Kawabulake region of the eastern part of the middle Tianshan mountains. 摘要新疆中天山东段的卡瓦布拉克地区,在早古生代具有裂陷槽性质。
- Genesis of the Guanyinqiao Member of Upper Ordovician Wufeng Formation in southern China:"Shallow water shelly facies" or deep-water allogenic deposition? 中国南方上奥陶统五峰组观音桥段成因讨论:是“浅水介壳相”,还是深水异地沉积?
- The tectonic setting and sedimentary environment of Baidingshan Formation of upper Ordovician are discussed by analysis of sedimentary, petrologic and petrochemical features. 通过对该组的沉积学、岩石学及地球化学等方面的研究,讨论了其沉积环境及沉积构造背景。
- Orebodies are distributed in the upper Ordovician carbonaceous mud calc-iron-silicate formation of hydrothermal spout sediments,and obviously controlled by strata and structures. 矿体产于上奥陶统热水喷流沉积的炭泥钙铁硅质岩建造中,地层与构造控矿作用明显。
- A well-preserved and diverse acritarch assemblage was recovered from four Upper Ordovician formations of the Dawangou section, Xinjiang, northwestern China (Tarim Block). 新疆塔里木盆地西北缘大湾沟剖面晚奥陶世地层发现保存良好的疑源类组合。
- Karst reservoirs in Hercynian develop mostly in the area where Carboniferous strata directly overlay the mid-lower Ordovician, and the karst reservoirs in the area covered by upper Ordovician were formed in Caledonian. 海西期岩溶储层主要发育在石炭系直接覆盖于中下奥陶统之上的地区,上奥陶统覆盖区的岩溶储层主要是加里东期岩溶作用形成的。
- Ruthenium ion catalytic oxidation of asphaltenes further verifies that the source rocks in Middle and Upper Ordovician are the main source rocks of heavy oil in Lunnan and Tahe oilfields. 轮南、塔河稠油沥青质钌离子氧化降解产物在一元酸及甾烷酸、4 甲基甾烷酸的分布与TD2井稠油明显不同 ,进一步证明中、上奥陶统烃源岩可能为轮南、塔河稠油的主力源岩。
- In the Northeast of the West Mountains the Cambrian System ex-posed, while the Changwu Formation of the upper Ordovician and Yejia-tang formation of the Lower Carboniferous covered the west side of themountains. 西山的东北部出露寒武系,而西侧为上奥陶统长坞组及下石炭统叶家塘组。
- The margin of the carbonate platform of the Middle and Upper Ordovician, Tazhong area, Tarim Basin is characterized by a well-developed rimmed depositional system which consists of various types of grain banks and organic reefs. 塔里木盆地塔中地区中上奥陶统碳酸盐岩台地边缘以发育良好的多种粒屑滩和生物礁组成的镶边沉积体系为特征.
- It is concluded that in the Tazhong area, the synsedimentary structures in the Middle and Upper Ordovician had an important influence on the formation of these platform marginal facies. 可以得出这样的结论:这种分布状况代表了塔中地区构造对沈积相带的控制作用。
- The largest Ordovician reef-type oil and gas reservoir discovered in China is distributed along the Upper Ordovician carbonate platform margin in the northern of central uplift of Tarim Basin. 在塔里木盆地塔中地区发现了中国最大的奥陶系生物礁型碳酸盐岩油气藏,油气沿塔中隆起北部上奥陶统碳酸盐岩台缘相带展布,为无明显边底水、油气水分布复杂的非常规油气藏。
- The relation between T72 interface and the paleokarst reservoir of the upper Ordovician carbonate rocks in the mid-Tarim uplift[J].Sedimentary Geology and Tethyan Geology,2005,25(3):24-33. T72界面与塔中隆起上奥陶统碳酸盐岩古岩溶储层[J].;沉积及特提斯地质;2005;25(3):24-33
- This article has detailedly elaborated the main diagenesis types of Upper Ordovician platform margin reefs and grain banks in TaZhong area and their affection on reef-bank reservoir quality. 摘要详细阐述了塔中上奥陶统台缘礁滩体主要成岩作用类型及其对礁滩体储层性质的影响,建立了碳酸盐岩成岩和孔隙演化史。
- The Middle and Upper Ordovician carbonate reef and shoal assemblae originally formed in a rimmed shelf system , and then reworked by multi phases diagenesis and structural fracturing. 塔中中上奥陶统碳酸盐岩储层是在一发育良好的镶边陆棚体系中形成的礁、滩组合,并经过后期多次成岩和构造破裂作用改造而成。