准噶尔盆地南缘托斯台地区构造特征研究
准噶尔盆地南缘托斯台地区构造特征研究
李忠权1，张寿庭2，应丹琳3,4，李洪奎1，于京都1，甘娟娟1，卢忠琼5
1.“油气藏地质及开发工程”国家重点实验室(成都理工大学)，成都610059；
ps如何p图2.中国地质大学地球科学与资源学院，北京100083;信东野圭吾
3.北京大学地球与空间科学学院，北京100871;
4.中国石油西南油气田分公司，成都610051;
5.中国石油华北油田二连分公司地质所，内蒙古锡林浩特026017
［摘要］研究新疆准噶尔盆地南缘托斯台地区构造演化与构造动力学成因机理。对托斯台地区进行了野外地质调查与构造剖面实测，发现托斯台地区构造复杂，褶皱、断裂、不整合共同存在。托斯台断裂与小煤窑沟断裂都为正断层，共同组合成地垒式背斜构造；但2条断裂
带构造变形强烈，出现挤压构造透镜体和劈理带。该现象表明托斯台地区经历了多期构造活动，早期(燕山期)处于伸展构造动力学环境，形成地垒式背斜构造；晚期(喜马拉雅期)处于近南北向挤压构造动力学环境，形成断裂带内挤压构造透镜体与强烈构造变形带。
［关键词］准噶尔盆地南缘；托斯台地区；构造特征；伸展角度不整合；地垒
The characteristics of the structure ction in Tuositai region on the south edge of Junggar Basin, Xinjiang, China
iphone已停用连接itunes怎么办LI Zhong-quan1, ZHANG Shou-ting2, YING Dan-lin3,4, LI Hong-kui1, YU Jing-du1, GAN Juan-juan1, LU Zhong-qiong5
1.State Laboratory of Oil and Gas Rervoir Geology and Exploitation, Chengdu University of Technology,
Chengdu 610059, China;
2.Faculty of Earth Science and Resources, China University of Geosciences, Beijing 100083, China;
3.School of Earth and Space Sciences, Peking University, Beijing 100871, China;
4.Southwest Oil and Gas Field Company of CNPC, Chengdu 610051, China;
5.Geology Rearch Institute of Erlian Company, North China Oilfield of CNPC, Xilinhaote 026017, China Abstract:In order to interpret the structural evolution and the genesis mechanism of structural dynamics in the Tuositai region on the south edge of Junggar Basin in Xinjiang, the authors have made the geologic field investigation and structure cross-ction measurement to the Tuositai region. They discover the complication of the structure in the Tuositai region and the co-existence of the folds, the faults and the unconformable surfaces. Both the Tuositai fault and Xiaomeiyaogou fault are normal faults, which constitute horst anticlines. But the intensity of the deformation of the faults is strong, and structural lenticular bodies and the belts of cleavage are expod. The phenomena reveal that the Tuositai region experienced multipha tectonic activities. In the early epoch (Yanshan movement), the structural-dynamical environment of the Tuositai region was extensional so as to form the horst anticlines. In t
he late epoch (Himalayan movement), the structural dynamic environment of the Tuositai region was compressional, in which the orientation of the tectonic stress field was mainly from south to north. Due to the, the structural lenticular bodies and tectonically strong deformed zones were formed. The discoveries establish a solid foundation for objectively interpreting the tectonic characteristics and ismic structural ction of this region.
Key words: south edge of Junggar Basin; Tuositai region; structural characteristics; extensional angle disconformity; horst
川东北南江震旦系-寒武系界线岩层含矿性分析
庞艳春1，林丽1，马叶情2，黄永皇3
美丽家乡1.成都理工大学沉积地质研究院，成都610059;
2.甘肃工业职业技术学院，甘肃天水741025；
r是平舌音还是翘舌音3.四川省地质矿产勘查开发局404地质队，四川西昌615000
［摘要］从岩石地质特征和地球化学角度探讨川东北南江地区震旦系顶部和寒武系底部的岩层中是否存在镍钼钒多金属元素异常和富集成矿的可能。对金属元素分析表明，寒武系底部的这套黑色岩系存在镍钼钒多金属的富集现象，尤其是钒最为富集，达工业品位。岩性特征和有机碳含量分析表明，震旦系顶部灯影组第三段的白云岩和寒武系底部马家梁页岩段具有生油岩特征，区域上可能存在工业性油藏。另外，金属的富集与有机碳含量呈简单的正相关关系，表明金属元素富集与油气运移存在一定的相关性。
［关键词］震旦系；寒武系；黑色岩系；含矿性；南江地区
Analysis of ore-bearing potential in the boundary line of Sinian-Cambrian System in the Nanjiang area of Northeast Sichuan, China
PANG Yan-chun1, LIN Li1, MA Ye-qing2, HUANG Yong-huang3
1.Institute of Sedimentary Geology, Chengdu University of Technology, Chengdu 610059, China;
2.Gansu Industrial Vocational and Technical College, Tianshui 741025, China;
3.The 404 Geological Team, Sichuan Development Bureau of the Geology and Mineral Resources Exploration,
里番排行Xichang 615000, China
Abstract:A ries of black shales appear at the bottom of Cambrian (Majialiang shale) in the Nanjiang area, Northeast Sichuan. The feature of the black shales is similar to that of Niutitang Formation of West Hunan and North Guizhou. They consist of the black carbonaceous shale and siltstone and are rich in laminar pyrite and pyrite concretion. The underlying stratum is Member 3 of Dengying Formation which is compod of microlite-dolomite with black-gray color. The surface of the dolomite has oil epages evidently. The ore-bearing potential, the lithologic characters and geochemistry are discusd. The quantitative analysis of the metallic elements indicates that in the area there is also the enrichment phenomenon of the nickel-molybdenum-vanadium, especially vanadium, at the bottom of Cambrian. The analysis of lithologic characters and organic carbon content indicates that the features of source rocks come from the third member of Dengying Form
ation to Majialiang shale. Compared with previous data, it can be summarized that in the area, there are metal-rich mineral layers at the bottom of the Cambrian and oil-generating potential from the third member of Dengying Formation to Majialiang shale. In addition, the metal enrichment and organic carbon content show a positive correlation. This indicates that the metal enrichment is relative to oil migration.
Key words: Sinian; Cambrian; black shale ries; ore-bearing potential; Nanjiang Sichuan
羌塘盆地那底岗日组火山岩地层时代及构造背景木匣
消灭的拼音
付修根，王剑，陈文彬，冯兴雷
成都地质矿产研究所，成都610081
［摘要］野外地质调查发现，在羌塘盆地中央隆起带及其两侧的南、北羌塘拗陷中，那底岗日组及其同沉积地层之下广泛发育了一套古风化壳，古风化壳覆盖了石炭系、二叠系以及前人已确定的三叠系肖茶卡组，具有区域性展布的特点。结合在那底岗日组底部识别出来的底砾岩，证实了那底岗日组与下伏地层之间存在沉积间断。那底岗日组的沉积标志着
新一轮盆地演化的开启。取自北羌塘中部胜利河地区英安岩SHRIMP 锆石U-Pb年龄为(217.1±4.9) Ma，北羌塘西部冈玛错地区辉绿岩角闪石的40Ar/39Ar坪年龄为(197±4) Ma。结合近年来在羌塘盆地东部以及西部地区获得的那底岗日组火山岩喷发年龄，表明羌塘盆地那底岗日组火山岩的喷发年龄为205~220 Ma，这一年龄也代表了羌塘中生代盆地的开启年龄。那底岗日组火山岩具有高的Nb/Zr(0.039~0.058),Ta/Hf(0.095~0.15)和Zr/Y(3.57~6.01)比值，在构造环境判别图(如Zr-Zr/Y和Th/Hf-Ta/Hf)上，那底岗日组火山岩大多位于板内玄武岩区。结合中生代盆地早期沉积演化特征，认为羌塘中生代盆地形成于伸展的构造环境。
［关键词］古风化壳；那底岗日组；火山岩；盆地演化；羌塘盆地
Age and tectonic implications of the Late Triassic Nadi Kangri volcanic rocks in the Qiangtang basin, northern Tibet, China
FU Xiu-gen, WANG Jian, CHEN Wen-bin, FENG Xing-lei
