盆地的基底是前寒武系变质岩。
Precambrian metamorphic rocks constituted the basin basement.
寒武系与奥陶系界线位于D。
寒武系；碳酸盐岩；鲕粒；微生物印迹。
它们均位于前寒武系隐伏基底及其边缘结合部位。
They exist in the verge and the combine zone of Cambria system insidious bases;
之间的寒武系和奥陶系过渡时期是在进化史上的关键。
The transition between the Cambrian and the Ordovician periods is crucial in evolutionary history.
威远地区在上试的基础上，多口老井在寒武系发现了工业油气。
Industry oil or gas has been found in many mature Wells in Cambrian system in Weiyuan area.
吉林槽区的早古生代地层可分为寒武系呼兰群及奥陶系辽源群。
The early Paleozoic strata can be divided into the Cambrian Hulan Group and the Ordovician Liaoyuan Group.
油、烃源岩对比结果表明，塔中45井奥陶系原油主要来自寒武系。
Correlation between oil and source rock shows that the Ordovician reservoir oil of Tazhong 45 well is derived mainly from Cambrian source rock.
寒武系磷矿主要由钙磷酸盐、碳酸盐、硅质及硅酸盐类等矿物组成。
The Cambrian phosphoric ore is mainly composed of calcic phosphate, carbonate, silica and silicate minerals.
寒武系烃源岩是塔里木盆地主要烃源岩之一，包括泥页岩和碳酸盐岩。
Cambrian source rocks, including mud shales and carbonates, are among the main source rocks in Tarim basin.
断裂带北侧楼村地区广泛出露寒武系张夏组鲕粒灰岩，鲕粒变形普遍发育。
Oolite lime of Cambrian Zhangxia group emerged widely in Loucun area north beyond the fault and oolite deformation is widely developed.
2004年中石化西北分公司在九联片地震解释中发现寒武系大型建隆线索。
In 2004, the clue of Cambrian large-scale build-up was found by Northwest Branch during nine-block seismic interpretation.
储层沥青研究表明烃源岩不仅仅只有中上奥陶系烃源岩，还有寒武系烃源岩。
The study of reservoir bitumen showed that the source is not only the carbonate in middle and late ordovician, but also the carbonate in Cambrian.
寒武系、奥陶系地层主要为灰岩和白云岩，其问赋存有较丰富的岩溶裂隙水。
There is abundant karst fissure water in the limestone and dolomite of Cambrian and Ordovician.
同时，威远寒武系洗象池群后期的震旦系穿层井也证实该地质模型的正确性。
At the same time, the validity of this geological model had been approved by the new wells penetrated Cambrian Xixiangchi Group of Weiyuan Structure.
四川若尔盖北部寒武系太阳顶群为金矿矿源层，硅质岩为其中的主要组成部分。
Cambrian Taiyangding Group, located in the northern part of Ruoergai in Sichuan province, is an important gold-bearing formation.
阐述了研究区内寒武系的岩石学特征及沉积相类型，并建立了相应的沉积相模式；
The petrological characteristic, main types and characteristics of sedimentary facies have been expounded in Cambrian strata. Then sedimentary facies models are established.
据生烃期，寒武系—奥陶系源岩含油气系统进一步划分为早期和晚期两个亚系统。
The petroleum system is divided into the early and late subsystems by hydrocarbon generation periods.
最后对英买32区块寒武系白云岩储层进行了评价和预测，指出了有利相带的分布。
At last, this paper evaluates and forecasts the reservoir of Cambrian dolomite in YingMai32 area and pointed out the distribution of the favorable reservoir zones.
根据本区寒武系的岩石学特征、生物组合特征和沈积构造特征重建了各组段的沈积坏境。
According to petrology, biological assemblage and structural features of carbonate rocks, the sedimentary environments of formations of the carbonates in Yichang area are reconstructed.
本文搜集整理了由第四系到寒武系的沉积层资料，给出了沉积层总厚度和视密度的分布。
The data of sedimentary layers from the Quaternary down to the Cambrian are collected, and then the distributions of total thickness and apparent density of sedimentary deposits are presented.
淮南煤田阜凤逆冲断层是一压性断层，使寒武系灰岩、砂泥岩推覆于二叠系煤系地层之上。
Cambrain limestone and sandy mudstone were pushed onto the Permian coal measures by the Fufeng thrust in Huainan coalfield.
本文主要研究了贵州遵义松林地区的寒武系牛蹄塘组下部烃源岩的沉积学及地球化学特征。
The paper mainly studies the sedimentology and geochemistry of the source rocks of lower Cambrian Niutitang Formation in Songlin Zunyi area of Guizhou province.
研究指出：英南2气藏天然气主要来源于寒武系烃源岩，为早期聚集的寒武系来源油的裂解气。
It was represented that the natural gas in the Yingnan 2 gas pool came mainly from the Cambrian source rocks, which was a cracking gas from oil in the Cambrian accumulated in earlier period.
寒武系底部硅质岩向粘土岩过渡地带 ，或两者的互层以及蚀变粘土岩是多种元素富集成矿的有利岩层。
Transitional tervain from siliceous rock to clayrock, both interbed and altered clayrock are favourable strata of all kinds of elements concentrated mineralization underneath the Cambrian.
全球寒武系内的首个全球标准层型剖面和点位——“芙蓉统”和“排碧阶”的底界层型正式在我国确立。
The first intra-Cambrian GSSP for the base of global Furongian Series and Paibian Stage has been established in South China.
在东秦岭前寒武系变质岩中，发育了许多Z字型叠加褶皱。它们是由近直立的片麻岩和长英质脉形成的。
Z-shaped superposed folds formed by nearly vertical gneiss and feldspar-quartz veins are widely developed in East Qinling Precambrian metamorphic rocks.
该“潜伏”脉带的金矿化限于寒武系以硅质岩为顶板的碳质页岩中，明显受成矿前产生的韧性剪切带控制。
Gold mineralization of the zone is confined only to the Cambrian carbonaceous shale overlain by siliceous rocks, and apparently controlled by a premineral tough shear zone.
本文还对笔石动物群的性质进行了分析，与邻区和国外相当地层进行了对比，并讨论了本区寒武系与奥陶系界线。
The nature of graptolite fauna, the correlation of the graptolite-bearing strata with that in other area and the Cambrian-Ordovician boundary are also discussed.
本文还对笔石动物群的性质进行了分析，与邻区和国外相当地层进行了对比，并讨论了本区寒武系与奥陶系界线。
The nature of graptolite fauna, the correlation of the graptolite-bearing strata with that in other area and the Cambrian-Ordovician boundary are also discussed.
应用推荐