Ordovician
Lowstand bottom fan in upper Ordovician series. .
上奥陶统低水位期盆底扇体；
Marine volcanics of Early Ordovician was found in Zhifang region.
摘要纸房地区具有早奥陶世海相火山岩存在。
Major hydrocarbon source rocks are in the Cambrian and Ordovician.
寒武-奥陶系烃源岩是该区主力烃源岩;
This was the result from the large-scale regression in the Late Ordovician.
这是奥陶纪晚期大规模海退的结果。
Volcanic ash;the source material for Ordovician chamosite ooids in Sweden[J].
1地址错了，不好意思，改成Sturesson U.
And Ordovician and Cambrian, Quaternary of the people who hailed from a fight.
和奥陶纪、寒武纪、第四纪的生灵们打个招呼。
Major hydrocarbon source rocks lies in the Silurian and down ordovician.
加里东期-海西早期为主要油气充注期,喜山期属于早期油藏晚期裂解。
A systemic and integrated criteria is thus obtained for the Ordovician carbonates in the Tahe oilfield.
从而使塔河油田奥陶系储层有了一个比较系统、完善的划分标准。
The Ordovician Winnipeg may have been 200 my old or older during its main oil expulsion phase.
奥陶系Winnipeg组可能已处于主要石油排出期长达200百万年或更早。
The gold mine origins from the gold enriched volcanic and sedimentary rock of Ordovician,Carbonic and Dias.
奥陶系、石炭系和二叠系富金的火山-沉积岩为金矿的矿源层;
Study on the play and the distribution of Ordovician unconformity in central east Ordos basin.
鄂尔多斯盆地中东部奥陶系不整合面成藏组合及其分布规律
Our results suggest that a single, common refugium for the end Ordovician brachiopods probably did not exist.
在灾变时期，典型、常见分子是识别一个动物群的标志，而稀有分子更有助于复活效应的研究。
Ordovician buried hill reservoir plays and exploration technique of northern Bohai Bay basin.
渤海湾盆地北部奥陶系潜山油气藏成藏组合及勘探技术
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 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。
Bryozoa was quite diversified in the Ordovician, but lacked fossil records in the Cambrian.
古生物学资料表明 ,虽然苔藓动物的大多数类群在奥陶纪已经分化出来 ,但它在寒武纪却缺乏任何化石记录。
The Lazhuglung Formation overlies unconformably the Ordovician and Silurian strata.
发现了几个重要的不整合界面；
The main water source is fracture-karst water in Middle Ordovician carbonate rocks.
主要的供水水源为中奥陶统碳酸盐类岩石中的裂隙-喀斯特水。
There is abundant karst fissure water in the limestone and dolomite of Cambrian and Ordovician.
寒武系、奥陶系地层主要为灰岩和白云岩,其间赋存有较丰富的岩溶裂隙水。
Paleokarst cave-type reservoir is one of the most important reservoirs in Ordovician in Tahe Oil Field,Tarim basin.
古岩溶洞穴型碳酸盐岩储集层是塔河油田奥陶系油藏重要的储集层类型之一。
The lithology of karst is pure carbonatite at geological age of intermediate Cambrian and intermediate Ordovician.
北方岩溶和岩溶水的开发利用,见于碑刻者亦可追溯至1000年前。
DOES "LILLIPUT EFFECT" OF BRACHIOPODS EXIST IN SOUTH CHINA AFTER THE LATE ORDOVICIAN MASS EXTINCTION?
华南奥陶纪末大灭绝后腕足动物是否存在“小型化效应”?
It is not an isolated reservoir, but is a part of the Ordovician buried bill reservoirs in this area.
轮古东奥陶系油气藏不是孤立的油气藏，而是整个轮南古潜山油藏的一部分。
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；
The salts are continental source and come from the Cambrian and Ordovician systems of the surrounding uplifts.
其盐源主要是陆源，由周围凸起的寒武、奥陶系提供。
There developed a vast area of weathering crust karst reservoirs on top Ordovician in Ordos Basin.
鄂尔多斯盆地在奥陶系顶部发育大面积的风化壳岩溶储层。
Abundant Early Ordovician fossils are identified in the western part of Sanchakou.
在龙木错北新发现志留纪地层；
Fractures and caverns are the main spaces of carbonate reservoirs of the Ordovician system in Tahe Oilfield.
裂缝和溶蚀孔洞是塔河油田奥陶系碳酸盐岩主要的储集空间。
There are some fluid inclusions in the fillings of dissolved void of Ordovician carbonate rock in the Ordos basin.
鄂尔多斯盆地奥陶系马家沟组碳酸盐岩的溶孔、溶洞充填物中均含有一定量的包裹体。
Ordovician strata in Tahe oilfield belong to carbonate reservoir with well developed fractures and dissolution pores.
塔河油田奥陶系碳酸盐岩储集层裂缝普遍较发育，同时存在大量溶蚀孔隙。
And think pinching belt of mid-up Ordovician is exploration area of oil and gas in future.
指明中、上奥陶统尖灭带是今后有利的油气勘探领域。
The maturity of the Ordovician crude oil in Tahe oil district is high, and is strongly affected by biodegradation.
塔河油区奥陶系原油的成熟度较高,且受生物严重降解。
The karst fracture and vug carbonate in Ordovician of TAHE oilfield is complicated and extremely heterogeneous .
针对塔河油田奥陶系碳酸盐岩油藏储集体复杂、非均质性严重的特点。
The Tahe reservoir Ordovician carbonate rock belongs to the type reservoir that this is special.
塔河油田奥陶系碳酸盐岩属于该特殊类型油藏。
The Ordovician structure in the middle and east part of the Erdos Basin is a gently west-dipped large monocline.
鄂尔多斯盆地的中东部奥陶系今构造为一平缓的西倾大单斜。
It means that the transgression in the Early Ordovician was more extensive than that in the Cambrian.
这表明早奥陶世的海进比寒武纪的更甚了。
Buried Ordovician limestone fractured and karstic aquifer in Hongshan and Zhaili coalmines had seriously polluted.
淄博市洪山、寨里煤矿区隐伏的奥陶系灰岩裂隙岩溶水污染严重。
The main reservoir types in Ordovician carbonate formation in Tahe Oilfield are dissolution fractures and caves.
塔河油田奥陶系碳酸盐岩地层的主要储集空间为溶蚀缝、洞。
There exist different opinions about hydrocarbon generation capacity of the middle Ordovician carbonatite on the south slope of Huimin sag.
关于惠民凹陷南坡中奥陶统海相海相碳酸盐岩的生烃能力,前人有不同的认识。
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。
Any of various large, segmented aquatic arthropods of the order Eurypterida that existed from the Ordovician Period to the Permian Period.
（古生）板足鲎目的一种巨大的、有节的，属于板足鲎目的水生节肢动物，生存于奥陶纪到二叠纪时期
These folded rocks are composed of medium to thick bedded limestone of Ordovician and of thin bedded shale and siltstone of Silurian.
这些褶皱岩层是由奥陶系的中层至厚层石灰岩以及志留系的薄层页岩和粉砂岩组成。
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。
This method is effectively applied to simulate an oil well penetrating the Ordovician carbonate reservoir in Tahe oilfield.
应用此方法，对塔河油田奥陶系碳酸盐岩的－口油井进行了模拟，结果证实了该方法的有效性。
The major storage space and fluid channel of Ordovician reservoir is hypogenous fracture-cavern.It can make high production after erodent buildup.
摘要奥陶系储层流体的存储空间和流动通道主要是次生溶洞和裂缝，这些裂缝往往经过溶蚀改造，故可以形成很高的产能。
In the Luquan-Wuding region of the north domain, the Ordovician is complete, and is unconformably overlain by the Devonian.
北侧的禄劝-武定一带，下古生界的沈积序列与之相反，有完整的奥陶纪沈积组合，上于泥盆系假整合，其间无志留纪的沈积。
The tectonic framework of North Qilian in Early Ordovician should be similar to that of the Bafin Bay and the Queen Elizabeth Islands.
北祁连早奥陶世海域与现在加拿大北部巴芬湾及伊丽莎白女王群岛的构造格局相似。
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 ;
This paper is a continuation of the papers on lithofacies palaeogeography of the Early, Middle and Late Cambrian and the Early and Middle Ordovician.
摘要本文是笔者等的中国早、中、晚寒武世和早、中奥陶世岩相古地理诸文的继续。