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Geological Interpretation and Hydrocarbon Exploration Potential of Three Types of Mound-shaped Reflectors in the Meishan Formation,Southern Qiongdongnan Basin

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Acta Geologica Sinica(English Edition) 2021年第1期95卷 167-176页

作者： feng yangwei REN Yan LI Zengxue JIN Li School of Geographical Science and Tourism Nanyang Normal UniversityNanyangHenan 473061China Shandong Key Laboratory of Depositional Mineralization&Sedimentary Mineral Shandong University of Science and TechnologyQingdaoShandong 266590China School of Earth Sciences East China University of TechnologyNanchang 330013China PetroJindian(Beijing)Sci-Tech Co. LtdBeijing 100000China

Many mound-shaped reflectors with different features and shapes are evident in the Upper Member of the Meishan Formation from seismic profiles taken in the deep-water area of the Southern Qiongdongnan *** on the drilling,2 D and 3 D seismic data from the study area,descriptions of the seismic reflection characteristics as well as the geometric shape,wave impedance inversion,analogy and comparative analyses are carried *** in conjunction with research on the paleo structure and paleo sedimentary background,we consider that the mound-shaped seismic reflectors are distributed in the Southern Slop belt and the Southern High-rise of the Qiongdongnan Basin,which can be subdivided into three types:reefs,contourite mounds and magmatic *** first type,reefs,includes patch reefs,platform marginal reefs and pinnacle *** reefs present mound-shaped seismic facies with medium frequency and a moderately strong amplitude,being distributed at the uplift of the fault control platform on the Southern Slop *** platform marginal reefs have flat mound-shaped seismic facies with strong amplitude and medium frequency,developing at the margin of the carbonate platform in the Southern *** pinnacle reefs have mound-shaped seismic facies with strong amplitude and medium frequency and are developed on an isolated volcanic *** boundaries between individual reefs are clear on the seismic section,with reef ridge and reef ditch developed,the phenomenon of’front product’being visible within,two-way superelevation between wings is developed and they exist visibly as mounds in any viewed direction of the *** are slightly asymmetrical in the direction perpendicular to the paleodepth the reef body being steep near the deep-water side,while being gentle near the shallow water *** wave impedance of a patch reef is about 7 kg/m^(3)×m/s,while the wave impedance of a platform marginal reef is about 7.5 kg/m^(3)×m/*** second type-contourite

关键词： deep-water area mound-shaped reflectors reef contourite mound accumulation assemblage

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Distribution Characteristics and Metallogenic Regularity of Graphite Deposits in Qinling Orogen,China

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Acta Geologica Sinica(English Edition) 2015年第4期89卷 1244-1263页

作者： feng yangwei QU Hongjun YANG Chenyi LV Lushi State Key Laboratory of Continental Dynamics Department of GeologyNorthwest University Xi'an Institute of Geology and Mineral Resources Xi'an Center of Geological Survey China Geological Survey Key Laboratory for the Study of Focused Magmatism and Giant Ore Deposits MLR Shaanxi Earthquake Administration Aerophotogrammetrical Surveying and Remote Sensing Bureau CNACG

Qinling orogen is one of the five main repository distribution provinces of large scale graphite resources. Graphite occurrence strata are multitudinous including NeoArchaean group to Neopaleozoic. Mineral deposit types are complete consisting of crystal flaky graphite deposit and aphanitic graphite deposit, ore types of the former are main graphite gneiss, graphite schist and graphitized marble, and ore types of the latter are main graphite layer metamorphosised from coal bed and graphitic carbargilite. At present, most graphite deposits with low research degree only implement preliminary investigations of the graphite resource, which has a good prospect. Based on the basic material of dozens of graphite deposits, spots and plays discovered in the Qinling orogen, this paper applied geologic multidisciplinary analysis method to disclose the graphite deposit types of the Qinling orogen, mainly through outdoors geologic survey and specimen examination with analysis of some typical deposits： regional metamorphism crystal graphite deposits and thermo-contact metamorphic aphanitic graphite deposits, with the control of latitudinally trending regional tectonic, graphite deposits of the Qinling orogen distribute sublatitudinally trending three large ore belts： I the Neoarchean-Proterozoic basement crystal graphite enrichment deposits zone along the south margin of North China plate; II the Carboniferous intermountain basin group aphanitic graphite enrichment deposits zone near the Shangdan suture of the West Qinling; III Paleozoic crystal graphite enrichment deposits zone in the Qinling paleomicroplate of the west part of the East *** are reached from multiple inquiries： Qinling multi-cycle complex continental collision orogen zone has experienced multiple tectonic framework transformation and polyphase tectonic thermal event from NeoArchean Erathem adjointing multiple graphite tectonic mineralization cycle. In the light of chief control of mineralization a

关键词： Qinling orogen graphite deposits graphite gneiss Metallogenic regularity

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Seismic Recognition and Origin of Miocene Meishan Formation Contourite Deposits in the Southern Qiongdongnan Basin,Northern South China Sea

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Acta Geologica Sinica(English Edition) 2021年第1期95卷 131-141页

作者： feng yangwei REN Yan LYU Chengfu ZHANG Peng CHEN Ying JIN Li School of Geographical Science and Tourism Nanyang Normal UniversityNanyangHenan 473061China Shandong Key Laboratory of Depositional Mineralization&Sedimentary Mineral Shandong University of Science and TechnologyQingdaoShandong 266590China School of Earth Sciences East China University of TechnologyNanchang 330013China PetroJindian(Beijing)Sci-Tech Co. LtdBeijing 100000China Northwest Institute of Eco-Environment and Resources Chinese Academy of SciencesLanzhou 730000China CNOOC Research Institute Co. Ltd.Beijing 100028China

Research into the contourite deposits in the Upper Meishan Formation of the southern Qiongdongnan Basin in South China Sea is weak;their characteristics,distribution and original geological conditions are not *** geologic al and geophysical methods including seismic and drilling data,based on seismic reflection characteristics,geometrical configuration description,and wave impedance inversion,two types of contourite deposits are *** deposits have blurred boundaries between each deposit and disordered internal seismic reflections;They are mound-shaped only in transverse section,and banded in the longitudinal ***Ⅰcontourite deposits are conical,with mediumhigh amplitude,low-continuity,low-frequency mound-shaped seismic facies,and subparallel-chaotic reflections *** deposits are conical with sharp tops,the canal between mounds is V-shaped and *** western wing is gentle and the eastern wing is steep,with the slope toe mostly between 10°and 20°,and width height ratio about ***Ⅱcontourite deposits are flat,exhibiting medium-amplitude,medium-continuity,low-frequency mound-shaped seismic facies,with subparallel weak reflections *** mounds are flat with gently arced tops,with shallow canals *** slope toe is between 5°and 10°,with a width height ratio of about *** wave impedance value of these contourite deposits is 4.6 kg/m^(3)×m/s to 6.8 kg/m^(3)×m/s,about 5.8 kg/m^(3)×m/s on average,which is presumed to represent marlycalcareous clastic *** contourite deposits mainly develop beneath the slope break at the margin of the faultcontrolled platform in the Southern Uplift zone of the *** plane view,they are distributed approaching a west-to-east direction,and in section,lie in low-lying areas near the faults at fault-controlled terraces of the Southern Uplift zone,with a paleo-current direction nearly *** paleotectonic setting of the gentle monoclinic platform was fav

关键词： contourites seismic reflection characteristics Miocene Qiongdongnan basin South China

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Special Issue Devoted to Petroleum Geology in Marginal Sea Deepwater Settings—Take the South China Sea as an Example

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Acta Geologica Sinica(English Edition) 2021年第1期95卷 I0001-I0006页

作者： ZHANG Gongcheng feng yangwei State Key Laboratory of Continental Dynamics Northwest UniversityXi'an 710069China Department of Geology Northwest UniversityXi'an 710069China CNOOC Research Institute Co. Ltd.Beijing 100028China School of Geographical Science and Tourism Nanyang Normal UniversityNanyangHenan 473061China School of Earth Sciences East China University of TechnologyNanchang 330013China PetroJindian(Beijing)Sci-Tech Co. Ltd.Beijing 100000China

1 Deepwater Settings of Marginal Seas一the Frontier of Oil and Gas Exploration From the perspective of geographical environment,the areas of global oil and gas exploration can be divided into land,shallow water and deep water *** timespan of oil and gas discovery in each field is *** and gas have been discovered on land since ancient tinies,but the application of modern technology to discover oil and gas began in 1859 in Pennsylvania,USA(Hua,1984).Largescale oil and gas exploration began in the 1920s,and the reserve discovery reached its peak in the 1960s and 1970s.

关键词： shallow Deep exploration

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Upper Paleozoic Shale Gas Accumulation Conditions of the Tiemulike Formation in Yining Basin

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Acta Geologica Sinica(English Edition) 2015年第A1期89卷 147-150页

作者： feng yangwei LU Jincai JIANG Ting NIU Yazhuo CHEN Gaochao XU Wei Xi' an Center of Geological Survey China Geological Survey Xi' an Shaanxi 710054 Xi'an Institute of Geology and Mineral Resources Xi'an 710054 Shaanxi China Department of Geology Northwest University Xi'an Shaanxi 710069

1 Introduction Yining basin, an independent unit of the Yili- Zhongtianshan micro plate （Wang et al., 2007; Han et al., 2011）, is an intermontane superimposed basin （Dai et al., 2015）. Yining basin has well-developed Tiemulike dark shale with normal lake facies formed in late period of middle Permian, which has good foreground material conditions of shale gas reservoirs from the study of predecessors.

关键词： SHALE gas RESEARCH BASINS (Geology) RESERVOIRS CAP rock NATURAL gas -- Prospecting CHINA

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Highly enhanced thermoelectric and mechanical performance of copper sulfides via natural mineral in-situ phase separation

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Journal of Advanced Ceramics 2024年第5期13卷 641-651页

作者： Xi Yan Hongjiang Pan Yixin Zhang Tianyu Yang yangwei Wang Kun Huang Chongyu Wang Jing feng Zhenhua Ge Faculty of Materials Science and Engineering Kunming University of Science and TechnologyKunming 650093China

In situ phase separation precipitates play an important role in enhancing the thermoelectric properties of copper sulfides by suppressing phonon *** this study,Cu1.8S composites were fabricated by melting reactions and spark plasma *** complex structures,namely,micron-PbS,Sb_(2)S_(3),nano-FeS,and multiscale pores,originate from the introduction of FePb_(4)Sb_(6)S_(14)into the Cu1.8S *** effective element(Fe)doping and multiscale precipitates,the Cu_(1.8)S+0.5 wt%FePb_(4)Sb_(6)S_(14)bulk composite reached a high dimensionless figure of merit(ZT)value of 1.1 at 773 ***,the modulus obtained for this sample was approximately 40.27 GPa,which was higher than that of the pristine *** study provides a novel strategy for realizing heterovalent doping while forming various precipitates via in situ phase separation by natural minerals,which has been proven to be effective in improving the thermoelectric and mechanical performance of copper sulfides and is worth promoting in other thermoelectric systems.

关键词： in situ precipitates jamesonite natural mineral thermoelectric copper sulfides

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阿尔泰南缘吉木乃地区下二叠统沉积环境的地球化学判别

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西北地质 2019年第4期52卷 98-107页

作者：冯杨伟东华理工大学核资源与环境国家重点实验室东华理工大学地球科学学院中国地质调查局造山带地质研究中心山东科技大学山东省沉积成矿作用与沉积矿产重点实验室

选用对沉积环境反映比较敏感的元素,对吉木乃地区珠万喀腊剖面早二叠世卡拉岗组14件泥岩样品开展主量元素、微量元素、稀土元素分析,分析研究区地层中微量元素含量及其比值与沉积介质环境之间的对应关系,进而探讨吉木乃地区早二叠世沉... 详细信息

选用对沉积环境反映比较敏感的元素,对吉木乃地区珠万喀腊剖面早二叠世卡拉岗组14件泥岩样品开展主量元素、微量元素、稀土元素分析,分析研究区地层中微量元素含量及其比值与沉积介质环境之间的对应关系,进而探讨吉木乃地区早二叠世沉积期的湖盆气候条件、盐度、氧化还原条件等沉积环境特征。研究结果表明,古盐度指标w(B)、[m(Sr)/m(Ba)]和[m(B)/m(Ga)]平均值分别为51.32×10^-6、0.29%和2.42%,共同反映出吉木乃地区早二叠世为淡水环境,期间存在多个水体咸淡变化的次级旋回;氧化-还原条件指标V/(V+Ni)、Th/U和&U平均分别为0.82%、3.62%和0.92%,揭示出吉木乃地区下二叠统为缺氧环境下的沉积;经北美页岩标准化后发现泥岩中稀土元素比北美页岩的含量低,推测当时沉积应为化学风化作用较弱的较干燥气候,同时水体可能较安静。

关键词：吉木乃地区卡拉岗组古盐度氧化-还原条件下二叠统

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中哈边境伊犁地区中二叠统沉积环境的地球化学判别

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地质学报 2017年第4期91卷 942-953页

作者：冯杨伟姜亭宋博牛亚卓中国地质调查局西安地质调查中心国土资源部岩浆作用成矿与找矿重点实验室中国地质调查局造山带地质研究中心西安710054

细粒沉积物中的暗色泥岩是利用地球化学指标进行沉积环境分析的最有利载体之一。中哈边境伊犁地区中二叠世泥岩较为发育,厘定泥岩形成时的沉积环境对其是否可以成为烃源岩和其生成油气潜力十分关键。本次研究主要从暗色泥岩主量元素、... 详细信息

细粒沉积物中的暗色泥岩是利用地球化学指标进行沉积环境分析的最有利载体之一。中哈边境伊犁地区中二叠世泥岩较为发育,厘定泥岩形成时的沉积环境对其是否可以成为烃源岩和其生成油气潜力十分关键。本次研究主要从暗色泥岩主量元素、微量元素分析、稀土元素分析结果为基础,选用对沉积环境反映比较敏感的元素,分析研究区地层中微量元素含量及其比值与沉积介质环境之间的对应关系,进而探讨伊犁地区中二叠世沉积期的湖盆气候条件、盐度、氧化还原条件等沉积环境特征。研究结果表明:[m(Sr)/m(Ba)]、[m(B)/m(Ga)]和硼质量分数(w(B))共同反映出伊犁地区中二叠世为较咸水—咸水的沉积环境,且从早期的晓山萨依期向晚期的铁木里克期湖盆古盐度逐渐升高;&U、Th/U和V/(V+Ni)揭示出伊犁地区中二叠统为缺氧环境下的产物,沉积环境为水体分层不强的厌氧环境—水体分层及底层水体中出现H_2S的厌氧环境的过渡;依据中二叠世泥岩北美页岩标准化分布推测当时沉积应为化学风化作用较弱的较干燥气候,同时水体可能较安静。综上分析认为:伊犁地区中二叠世处于干燥缺氧的咸水环境,且从早到晚沉积环境水体的还原性逐渐增强,盐度逐渐增高。

关键词：伊犁地区铁木里克组古盐度氧化-还原条件地球化学判别

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被动大陆边缘构造演化对深水区烃源岩形成的控制

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海相油气地质 2017年第1期22卷 14-24页

作者：冯杨伟张功成中国地质调查局西安地质调查中心西安地质矿产研究所中海油研究总院

以世界被动大陆边缘含油气盆地构造演化、油气田资料为基础,采用地质综合分析方法,探讨了不同类型被动大陆边缘盆地在不同构造演化阶段深水区烃源岩的形成条件:开阔海型被动大陆边缘盆地群裂谷阶段发育大型局限湖盆,区域分布的厚层湖相... 详细信息

以世界被动大陆边缘含油气盆地构造演化、油气田资料为基础,采用地质综合分析方法,探讨了不同类型被动大陆边缘盆地在不同构造演化阶段深水区烃源岩的形成条件:开阔海型被动大陆边缘盆地群裂谷阶段发育大型局限湖盆,区域分布的厚层湖相富生油黑色泥页岩为主力烃源岩;边缘海型被动大陆边缘盆地群裂谷阶段发育受河流—波浪控制的大型三角洲,海陆过渡相富生气炭质泥页岩和煤系为主力烃源岩;被动大陆边缘阶段盆地群发生持续性海侵,在高水位体系域缺氧环境下的富有机质海相泥页岩为盆地重要的烃源岩。

关键词：被动大陆边缘盆地类型构造演化深水区烃源岩

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中哈边境吉木乃—斋桑盆地二叠系油气成藏要素

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地质学报 2021年第6期95卷 1935-1948页

作者：冯杨伟任艳屈红军王云姜亭南阳师范学院地理科学与旅游学院河南南阳473061 东华理工大学地球科学学院江西南昌330013 西北大学地质学系陕西西安710069 中国地质调查局西安地质调查中心陕西西安710054

吉木乃—斋桑盆地是古亚洲洋构造域西段勘探程度较低的重要二叠系含油气盆地,油气聚集成藏研究尚浅。基于区域地质、地质露头、钻井、地震、分析化验等资料,开展生、储、盖、圈、运、保油气地质条件分析,研究生烃过程、排烃动力和成藏... 详细信息

吉木乃—斋桑盆地是古亚洲洋构造域西段勘探程度较低的重要二叠系含油气盆地,油气聚集成藏研究尚浅。基于区域地质、地质露头、钻井、地震、分析化验等资料,开展生、储、盖、圈、运、保油气地质条件分析,研究生烃过程、排烃动力和成藏动力与方式,制作含油气系统事件表,探讨油气成藏过程与油气成藏模式。吉木乃—斋桑盆地发育两套主力二叠系烃源岩:①下二叠统卡拉岗组/阿坎赛组浅湖相暗色泥岩,主要分布在盆地南部山前地区,发育于淡水湖泊轻微缺氧环境,TOC含量为0.936%;S_(1)+S_(2)为0.086mg/g,Ⅱ2-Ⅲ型干酪根,Ro为1.54%,成熟—过成熟阶段;②上二叠统麦恰特组深湖-半深湖黑色油页岩、泥岩,主要分布在斋桑坳陷中部地区,发育于咸水、强还原的环境,Ⅰ型干酪根,Ro为0.68%,孢粉色变指数为2.83,处于刚进入生油窗的低成熟阶段。储集层主要为二叠系砂岩和砾岩,二叠系麦恰特组与阿考尔康组泥页岩为重要的盖层。圈闭以岩性、背斜、断鼻、断块、地垒等形式为主,发育正断层、岩浆底辟构造油气短距离垂向运移和不整合面油气长距离侧向运移两类油气运移通道。主力烃源岩经历多次生排烃过程,早侏罗世达到生油高峰,古近纪达到生气高峰。油在异常过剩压力驱动下近距离进入二叠系岩性圈闭中成藏;部分通过断裂、岩浆底辟等通道垂向短距离运移,进入断背斜、底辟构造等圈闭中富集成藏;气经长距离侧向运移在古近系与下伏地层间的不整合面附近富集成藏。

关键词：中哈边境二叠系斋桑坳陷吉木乃麦恰特组卡拉岗组油气聚集成藏

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