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- The Lower Palaeozoic group mainly includes Cambrian, medial and lower Ordovician, which are marine carbonate in the district. 下古生界包括寒武系和下、中奥陶统,主要由海相碳酸盐岩构成。
- The Lower Ordovician organic reefs were first identified in Huanghuachang of the eastern Yangtze Gorge by the authors. 首次发现峡东下奥陶统生物礁。
- The Early Caledonian movement resulted in a pseudo-conformity between Cambrian and Lower Ordovician. 早加里东运动,造成下早奥陶统与寒武系的假整合;
- Unconformity between the Lower Ordovician and Devonian in the Sanchakou area in the eastern part of the Lungmu Co, northern Tibet, China. 藏北龙木错东部三岔口地区下奥陶统与泥盆系的不整合界面
- Therefore,it might be considered that organicmatter of Lower Ordovician was mature in Caledonian stage and turned into gas in Her-cynian. 据此,可以认为下奥陶统的有机质在加里东期已达成熟,在海西期转化为气。
- Hydrocarbon in the Ordovician petroleum accumulation system originated from the Cambrian and Lower Ordovician source rocks. 塔中低凸起奥陶纪油气成藏体系的源岩为寒武系及下奥陶统烃源岩 ;
- Skarnization siliceous rocks in the lower Ordovician Tieshidasi group is one of the dominant host rocks of Kendekeke cobalt-gold deposit. 上奥陶统铁石达斯群夕卡岩化硅质岩是东昆仑肯德可克钴金矿床的主要围岩之一,具有沉积结构构造。
- Shimen Hunan realgar deposit controlled by both dolomite of lower Cambrian Luoshanguao Group, lower Ordovician limestone and fault. 湖南石门雄黄矿床受寒武系下统娄山关群白云岩和下奥陶统灰岩以及断裂构造的双重控制。
- In this paper, the straticulate dolostone and spatulate dolostone in Lower Ordovician strata of Well Tazhong 1 were studied using petrologic and geochemical methods. 本文选择塔中地区塔中1井下奥陶统藻纹层白云岩与夹层竹叶状白云岩作为对象,应用岩石学与地球化学方法对其成因问题进行了研究。
- The carbonate rocks in the Lower Ordovician Majiagou Formation of Ordos Basin are widely distributed , but their organic matter content is low and maturation high. 鄂尔多斯盆地下奥陶统马家沟组碳酸盐岩分布广,但有机质丰度较低,且成熟度高。
- The formation of karst?cavern type carbonate oil reservoirs in lower Ordovician of 4 area in Tahe oilfield is related to weathering?denudation of fossil weathering crust. 塔河油田 4区下奥陶统碳酸盐岩岩溶缝洞型油藏的形成与古风化壳的风化剥蚀有关。
- Lower Ordovician carbonate rock is the major reservoir in Akekule area of Tarim Basin, and karst is the most important factor influencing Ordovician reservoir. 下奥陶统碳酸盐岩是阿克库勒地区主要含油气层 ,岩溶作用是影响奥陶系储层发育的最主要因素。
- The clastic rock reservoirs of Upper Devonian and Silurian and the carbonate reservoirs of Middle and Lower Ordovician are mainly distributed in the peri-cline area around central Tarim basin. 塔中围斜区主要分布有上泥盆统东河砂岩、志留系碎屑岩储层,以及中、下奥陶统碳酸盐岩储层。
- The smithsonite deposits of longshansangzhi lead-zine zone in northwestern Hunan are located in Haozitue group of upper Cambrian system and bottom party of Nanjianguan fromation of lower Ordovician system. 湖南西北部龙山 -桑植铅锌矿带的菱锌矿床 ,主要赋存于寒武系上统耗子沱群第 3段和奥陶系下统南津关组底部的“硅化体”与纯灰岩接触面附近 ,为以菱锌矿为主、异极矿其次的氧化锌矿床。
- Yingjishu depression is located in the Easter of Tarim and exploration area amount to 15 X 104km2. There are two sets of source rock, which include Cambrian to Lower Ordovician and Jurassic. 英吉苏凹陷位于塔里木盆地东部地区,勘探面积达15×10~4km~z。 该区发育了寒武系-下奥陶统和侏罗系两套烃源岩。
- The Lunnan area is one of the important oil and gas producing areas in the Tarim Basin.Study of reservoir characteristics of Lower Ordovician carbonate rocks is important to oil and gas exploration. 摘要轮南地区是塔里木盆地重点产油气地区之一,对其下奥陶统碳酸盐岩储层性能及分布的研究具有重要的实际意义。
- The clastic rock reservoirs of Upper Devonian and Silurian and the carbonate reservoirs of Middle and Lower Ordovician are mainly distributed in the pen-dine area around central Tarim basin. 摘要塔中围斜区主要分布有上泥盆统东河砂岩、志留系碎屑岩储层,以及中、下奥陶统碳酸盐岩储层。
- It is pointed out by analysis that Lower Ordovician carbonate reservoir in Tahe Oilfield and Akekule Uplift (Lunnan Uplift) has the favorable geological conditions to develop paleokarst. 通过分析研究指出 ,塔河油田及阿克库勒凸起 (轮南 )下奥陶统碳酸盐岩具备古岩溶发育的有利地质条件。
- Floan Stage/Age (Lower Ordovician) 弗洛阶/期(下奥陶统)
- Sherman recommended that Clarke be disciplined, but higher-ups rejected the idea. 谢尔曼建议对克拉克进行纪律惩戒,但高层拒绝了这个意见。