While the organic matters in the carbonate rock and the mud rock are all more than that in Ordovician, especially, source rock thickness of carbonate rock is a suite of veryimportant marine facies source rock in Tarim basin. source rocks, the Cambrian-Ordovician, the lunnan lower
而寒武系无论是碳酸盐岩还是泥岩，其有机质丰度均高于奥陶系，尤其是碳酸盐岩烃源岩厚度也较大，因而是塔里木盆地一套十分重要的海相烃源岩。
While the organic matters in the carbonate rock and the mud rock are all more than that in Ordovician, especially, source rock thickness of carbonate rock is a suite of very importantmarine facies source rock in Tarim basin. source rocks, the Cambrian-Ordovician, the lunnan lower
而寒武系无论是碳酸盐岩还是泥岩，其有机质丰度均高于奥陶系，尤其是碳酸盐岩烃源岩厚度也较大，因而是塔里木盆地一套十分重要的海相烃源岩。
However, the Pre-Sinian system, the Cambrian system, the Ordovician system, the Triassic system, the Jurassic system and the Cretaceous system slow down the formation of high Cd value belt.
区内锌矿、煤矿和磷矿开采过程中的尾砂、废水的堆积和排放是长江宜昌段Cd高值带的重要人为污染源。
In the Early Cambrian, the Tarim area was mainly a carbornate platform, in which there were penebanks, dolomitic flat, and gypsum-halite lake.
在早寒武世，塔里木地区是一个碳酸盐岩台地，其中散布着准滩、云坪和膏盐湖。
These intertwined velvet worms, or onychophorans, are living fossils, holdovers of the Cambrian explosion of life-forms that occurred about 530 million years ago.
这些缠绕在一起的天鹅绒蠕虫，或称栉蚕，是活着的化石，延期的寒武纪时代的爆炸生活格式发生约530百万年前。
Now, importantly, elsewhere includes the Lower Cambrian in China.
现在，重要的是，其他地方也包括了中国的下寒武统地层。
Based on this, early Cambrian in the Shandong region is divided 4 sequences.
以此为基础，将山东地区下寒武统划分为4个层序。
Eons of subterranean pressure and heat transformed Cambrian zooplankton and algae into present-day petroleum fields.
地下压力和热将寒武纪浮游动物和藻类转化为当今的石油领域。
The Northern Uplift of the Tarim Basin had undergone a long-term compressional uplifting and erosion since the Early Paleozoic, and also integrated with the upwarp of the Cambrian gypsum formation, thus forming two basic types of carbonate rock traps, namely, weathered-crust buried hills and insider anticline traps.
塔北隆起自早古生代以来经历了长期的挤压隆升剥蚀过程，结合寒武系膏盐的塑性上拱，形成了两种基本的碳酸盐岩圈闭类型，即风化壳潜山和内幕背斜圈闭。
The main heat-proof and temperature-preserving covers are Silurian and Ordovician argillite of Gaozaitian Formation and Meitan Formation. The main thermal reservoir layer is Cambrian carbonate rock of Loushanguan Group. The aquatic chemistry of the hot ground water and drilling data indicate that the reservoir depth ranges from 1300 to 2500m and the geothermal gradient from 2.44 to 2.84℃/100 m. It is pointed out that there may exist another geothermal field in the plunging part of the east limb of Wudang Anticline. Some suggestions are made about the development and protection of the geothermal field.
其主要隔热保温盖层为志留系高寨田群(S1g)和奥陶系湄潭组(01m)泥页岩，主要热储层为寒武娄山关群(∈2-3ls)碳酸盐岩，根据地下热水水质化学成份特征及钻探资料，其深度为1300-2500 m，地温梯度2.44-2.84℃/100 m；指出乌当背斜东翼倾伏端有另一地热田存在可能性；以及对地热田研究开发、保护的意见。
By combining universal display of fluorescent light and discussion of the erlation of gas-froming and degree of maturation, it is believed that the hydrocarbon source rocks of lower Cambrian have the possibility to form deep-gas, pyrolysis gas and early preserved gas in southern margin of NCB.
结合华北南缘马店组普遍的荧光显示和对天然气生成与有机质成熟度关系的讨论，认为华北南缘寒武系烃源岩具有形成深源气、裂解气和保存早期形成气的可能性。
For mid and early Cambrian dolomite; 15%?
15%，石灰岩的固硫率为15%？
Basing on the analysis of epicontinental sea carbonate platform sequence stratigraphy of Cambrian in north China, the paper puts forward 6 points which shall be noticed on the study of sequence.
根据对华北地台寒武系陆表海碳酸盐台地层序地层分析，提出了露头层序工作的方法以及应注意的六项问题。
The Huayuan lead|zinc deposit is a large Mississippi Valley typeore deposit in Hunan Province, which occurs in the algal|oolitic limestone of Lower Cambrian Qingxudong Formation.
花垣铅锌矿床是近年来发现的产于下寒武统清虚洞组藻灰岩-鲕粒灰岩中的大型密西西比型铅锌矿床。
So there is likely a general fluorine-rich zone in the distribution areas of Lujiaping Formation of Lower Cambrian, Daguiping Formation of Lower Silurian and their corresponding strata in China.
2大巴山地区下寒武统鲁家坪组地层层位相当于云南筇竹寺组、贵州和湖南的牛蹄塘组的黑色岩系，该层位氟含量也普遍较高。
By using of the geological data, gas show in drilling and geochemical information from the Lower Cambrian black shale in Qiongzhusi formation in the Upper Yangtze region, this paper analyzed the accumulation condition of shale gas reservoirs.
利用中国上扬子地区下寒武统筇竹寺组黑色页岩的地质、钻井气显示以及有关地化分析数据，剖析了该区页岩气藏形成地质条件。
During the development peroid of Doushantuo Formation source rocks, the areas studied belong to arenaceous pelitic facies, open platform facies. Until Dengying Stage, the area mainly belongs to restricted platform facies. During early Lower Cambrian, the areas belong to mesa-basin sedimentary facies and gradually developed to open platform-restricted platform facies. During Lower Cambiran, the areas belong to open sea shelf facies-open marine platform facies.
陡山沱组烃源岩发育时期，研究区处于近岸砂泥坪相区及开阔台地相区，至灯影期，主体处于局限台地相带；早寒武世早期，研究区主要处于台地—盆地沉积相带，逐渐演变为开阔台地至局限台地相带；下寒武统在区内以广海陆棚—开阔台地相为主；奥陶纪末—志留纪早期，经历了非补偿滞留还原海盆—正常陆表海/深水陆棚海—残留海—陆相沉积环境的变迁。
From north to south, the north Qilian ophiolite melange, the south Qilian ophiolite melange, the Shaliuhe_Yuqiahe high_pressure and super high_pressure meta_morphic belt and the Qingshuiquan ophiolite melange in central Kunlun Mountains are developed between two adjacent microcontinents, representing suture belts between two microcontinents. The suture belts are from Cambrian to Ordovician in age.
在微大陆之间自北而南分别发育了北祁蛇绿岩混杂岩带、南祁连蛇绿岩混杂岩带、沙柳河-鱼卡河高压-超高压变质带和昆仑中部清水泉蛇绿混杂岩，它们代表了微大陆这间的结合带，其形成时代集中在寒武纪至奥陶纪。
Based on the quantitative and qualitative data from the study of stratigraphy and petrology of outcrop and well sections, according to the single factor analysis and multifactor comprehensive mapping method, the single factor maps of the Lower, Middle and Upper Cambrian, and the lithofacies palaeogeography maps of the Early, Middle and Late Cambrian of Tarim area, are compiled.
在39个露头剖面和钻井剖面的各种单因素定量及定性资料的基础上，采用单因素分析多因素综合作图法，编制出了塔里木地区寒武系下、中、上统的各种单因素图及相应的寒武纪早、中、晚世的岩相古地理图。
Fluorine contents of Neoproterozoic, Jianzhuba Group of Lower Cambrian and Mid-Upper Cambrian strata are generally lower than 500mg/kg, which are low-fluorine zones in Daba Area.(2) Lujiaping Formation of Lower Cambrian in Daba Area is corresponding with Niutitang Formation in Guizhou, Hunan and Qiongzhusi Formation in Yunnan, which strata also have high Fluorine contents, especially in black shale, phosphorite and Mo-Ni ore layer.
下寒武统鲁家坪组碳质板岩、黑色页岩、磷块岩中平均氟含量普遍超过800mg/kg，下志留统大贵坪组碳板岩氟含量也明显较高（1500mg/kg以上），这些地层分布区是大巴山区的氟富集区；奥陶系、中志留统及下志留统除大贵坪组外的各组地层氟含量也一般高于地壳平均含氟量（550mg/kg）；而震旦系、下寒武统箭竹坝组及中上寒武统分布区氟含量一般低于500mg/kg，是大巴山区的相对低氟区。