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Investigation of Organic Matter Sources and Depositional Environment Changes for Terrestrial Shale Succession from the Yuka Depression: Implications from Organic Geochemistry and Petrological Analyses

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Journal of Earth Science 2023年第5期34卷 1577-1595页

作者： Shiming Liu Lian Jiang Bangjun Liu Cunliang Zhao Shuheng tang furong tan Key Laboratory of Resource Exploration Research of Hebei Province Hebei University of EngineeringHandan 056038China Department of Earth and Environmental Sciences and MQ Marine Research Centre Macquarie UniversitySydney NSW 2109Australia School of Energy Resource China University of GeosciencesBeijing 100083China Department of Geology Northwest UniversityXi'an 710069China

Continental organic-rich shales are well developed in the Dameigou Formation within the Yuka Depression of the Qaidam Basin. Here, the Rock-Eval pyrolysis, biomarkers, organic petrology, and stable carbon isotope have been carried out on the Middle Jurassic Dameigou Formation source rocks from the northwest part of Yuka Depression, Qaidam Basin in order to study their thermal maturity, source of organic matter(OM), and palaeoenvironment changes. The Rock-Eval pyrolysis data(e.g., T_(max)), vitrinite reflectance, and biomarker-derived thermal maturity parameters(e.g., carbon preference index, Ts/(Ts+Tm), C_(29)Ts/(C_(29)Ts+C_(29)αβ hopane), C_(30) αβ/(αβ+βα) hopanes, C_(29)ααα 20S/(20S+20R) steranes, and C_(29)αββ/(αββ+ααα) steranes) suggest all studied samples stay between immature and low mature stage. The maceral compositions, stable carbon isotope compositions, n-alkane distributions, and biomarker-derived source parameters(e. g., C_(27)/C_(29)ααα 20R sterane, ternary diagram of C_(27)-C28-C_(29)steranes, C24 tetracyclic terpane) indicate both aquatic organisms and higher plants are the source of OM in the shales, but land plants are dominant. Generally low gammacerane concentration and environment-related parameters(e. g., cross-plots of C_(27)/C_(29)ααα 20R sterane vs. Pr/Ph) indicate these source rocks may be derived from lacustrine and fluvial-deltaic environments with fresh water, which is also supported by the variations of stable carbon isotopes from OM in the source rocks. However, the stable carbon isotope compositions of OM in the source rocks were influenced by multiple factors(e.g., source types and depositional environment) in the Yuka Depression. Slightly brackish condition is recorded in the upper part of the ZK6-1 well favor the formation of lacustrine algae, as confirmed by high contents of C_(27) steranes and short-chain n-alkanes. The variation of reducing to oxidizing condition of study area is possibly associated with the periodical flooded r

关键词： biomarker stable carbon isotopes dameigou formation lacustrine sediments paleoenvironment petroleum geology

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First Discovery of Late Triassic Tuffs in the South Qilian Basin: Geochemical Characteristics, Zircon LA-ICP-MS U-Pb Ages and Potential Source Regions

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Journal of Earth Science 2023年第6期34卷 1692-1703页

作者： Fangpeng Du furong tan Shiming Liu Xiaochen Zhao Yingtao Chen Junwei Qiao School of Petroleum Engineering and Environmental Engineering Yan'an UniversityYan'an 716000China China National Administration of Coal Geology Beijing 100038China State Key Laboratory of Continental Dynamics Department of GeologyNorthwest UniversityXi'an 710069China Key Laboratory of Resource Exploration Research of Hebei Province Hebei University of EngineeringHandan 056038China College of Geology and Environment Xi'an University of Science and TechnologyXi'an 710054China

This investigation reports the first discovery of more than 70 tuff intervals in the Upper Triassic,South Qilian *** and geochemical analyses were carried out on ten tuff samples and zircon U-Pb dating were on *** section and X-ray diffraction(XRD)results indicate that the tuffs were composed of crystal shards and altered glass shards;crystal shards include plagio-clase and *** of the tuffs had been transformed into illite/smectite mixed-layers(I/S).In addition,calcite,pyrite,dolomite and siderite were also identified in some of the tuff *** of major elements suggests that the tuffs are peraluminous high-K calcalkaline *** elements indicate that the tuffs are enriched in high field strength elements(HFSE),including Th,U,Ta,Zr and *** characteristics suggest that the tuffs originated from comendite pantellerite and rhyolite from within plate *** U-Pb dating(236.0±1.7,231.4±1.6,and 223.1±3.9 Ma)indicate that the tuffs were erupted in the Late *** chronology and geochemical analyses suggest that the West Qinling belt and the East Kunlun belt are the potential source regions of these tuffs,and they originated from the within plate magma during a post-collisional period.

关键词： tuff South Qilian Basin Late Triassic U-Pb isotopic dating source regions zircon geo-chemistry

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Origin of the hydrate bound gases in the Juhugeng Sag, Muli Basin, Tibetan Plateau

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International Journal of Coal Science & Technology 2020年第1期7卷 43-57页

作者： Shiming Liu furong tan Ting Huo Shuheng tang Weixiao Zhao Haide Chao School of Energy Resource China University of GeosciencesBeijing 100083China Qinghai Institute of Coal Geological Prospecting Xining 810001China Aerial Photogrammetry and Remote Sensing Center China National Administration of Coal GeologyXi'an 710199China The Second Exploration Institute of Geology in Qinghai Province Xining 810003China The Fourth Exploration Institute of Geology in Qinghai Province Xining 810008China

The Juhugeng Sag,located in northwest of the Muli Basin,Tibetan Plateau,has been investigated for coal and petroleum resources during the past several *** have been successful recoveries of gas hydrates during recent years from the Middle Jurassic Yaojie Formation that offer insight into the origin of the hydrocarbon gases from the complex sag *** study examines the organic geochemical and stable carbon isotopic characteristics of shale and coal samples from the Middle Jurassic Yaojie Formation of the Juhugeng Sag,as well as compares with carbon isotopes,gas amounts and components of hydrate-bound gas.A total of 19 samples from surface mining,including 12 samples of black shale and 7 samples of coal,were analysed using a micro-photometer,a gas chromatograph,Rock–Eval and isotope *** the shale samples contained 100%type I kerogen,and the random vitrinite reflectance values vary from 0.65%to 1.32%and achieve thermal pyrolysis *** values of methane(δ13C ranging from−52.6‰to−39.5‰andδD ranging from−285‰to−227‰)in the hydrate bound gases suggest that the methane originates mainly from thermogenic *** is proposed that ethane from the gas hydrate is thermogenic-produced,and this conjecture is supported by the fact that most of the gas hydrate also contains more than 30%of thermogenic C2+hydrocarbons and is similar to structure II *** isotope data from the gas hydrates show a positive carbon isotope series(δ13C1<δ13C2<δ13C3),with ethaneδ13C values being lighter than−28.5‰,as high consistency with source rocks from the Jurassic period indicate thermal oil-prone gas.A model of the accumulation of gas hydrate is ***,the gaseous sources of gas hydrates may be a subject for more research.

关键词： Muli Basin Stable carbon isotopes Gas hydrate Gas source Alkane gas

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Origin of the Gas Hydrate and Free Gas in the Qilian Permafrost,Northwest China:Evidence from Molecular Composition and Carbon Isotopes

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Acta Geologica Sinica(English Edition) 2021年第2期95卷 602-616页

作者： tan furong LI Yang DU Fangpeng LIU Shiming CUI Weixiong LIU Zhiwu GENG Qingming LU Ping State Key Laboratoiy of Continental Dynamics Department of GeologyNorthwest UniversityXi'an 710069China State Key Laboratory of Organic Geochemistty Guangzhou Institute of GeochemistryChinese Academy of SciencesGuangzhou 510640China China National Administration of Coal Geology Beijing 10038China Shaanxi Mineral Resources and Geological Survey Xi'an 71006SChina Xi'an Research Institute of China Coal Technology&Engineering Group Corp. Xi'an 710077China College of Earth Science and Resources Chang'an UniversityXi'an 710054China

The Qilian permafrost of the South Qilian Basin(SQB)has become a research focus since gas hydrates were discovered in *** many works from different perspectives have been conducted in this area,the origin of gas from gas hydrate is still *** composition and carbon isotope of 190 samples related to gas hydrates collected from 11 boreholes allowed exploration of genetic type,thermal maturity,biodegradation,as well as gas-source correlation of alkane gases from gas hydrates and free *** indicate that alkane gases biodegraded after the formation of natural *** to differences in carbon isotopes of methane and their congeners(CH4,C2H6,C3H8),the thermal maturity(vitrinite reflectance,VRo)of most alkane gases ranges from 0.6%to 1.5%,indicating a mature to high mature *** thermal maturity VRo of a small part of alkane gas(in boreholes DK5 and DK6)is higher than 1.3%,indicating a high mature *** gases were mainly produced by secondary cracking,consisting of crude oilcracking gases and wet gases cracking to dry *** types of alkane gases are primarily oil-type gases generated from shales and mudstones in the upper Yaojie Formation of Jurassic,with less coal-type gases originated from the mudstones in the Triassic Galedesi Formation and the lower Yaojie Formation of *** dioxides associated with alkanes from gas hydrates and free gases indicate the thermal decomposition and biodegradation of organic *** origins of natural gases from gas hydrates and free gases shed light on the evaluation of petroleum resource potential,deeply buried sediments,and petroleum resource exploration in the SQB.

关键词： uunconventional energy gas hydrate carbon isotope alkane gas origin thermal maturity South Qilian Basin

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First discovery of Late Triassic tuffs in the South Qilian Basin: geochemical characteristics， zircon LA-ICP-MS U-Pb ages and potential source regions

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Journal of Earth Science 2021年

作者： Fangpeng Du furong tan Shiming Liu Xiaochen Zhao Yingtao Chen Junwei Qiao College of Geology and Environment， Xi'an University of Science and Technology Shaanxi Provincial Key Laboratory of Geological Support for Coal Green Exploitation China National Administration of Coal Geology Shaanxi Institute of Geological Survey School of Energy Resource， China University of Geosciences

This investigation reports the first discovery of more than 70 tuff intervals in the Upper Triassic， South Qilian Basin. Petrographic and geochemical analyses were carried out on ten tuffs and zircon U-Pb dating were on three. Thin section and X-ray diffraction （XRD） results indicate that the tuffs were composed of crystal shards and altered glass shards; crystal shards include plagioclase and quartz. Most of the tuffs had been transformed into illite/smectite mixed-layers （I/S）. In addition， calcite， pyrite， dolomite and siderite were also identified in some tuffs. Analysis of major elements suggests that the tuffs are a peraluminous high-K calcalkaline series. Trace elements results indicate that the tuffs were enriched in high field strength elements （HFSE）， including Th， U， Ta， Zr and Hf. Geochemical characteristics suggest that the tuffs originated from comendite pantellerite and rhyolite from within plate settings. Zircon U-Pb dating （236.0 ± 1.7 Ma， 231.4 ± 1.6 Ma and 223.1 ± 3.9 Ma） indicate that the tuffs were erupted in the Late Triassic. Comparative chronology and geochemical analyses suggest that the West Qinling Belt and the East Kunlun Belt are the potential source regions of these tuffs， and they originating from the within plate magma during a post-collisional period.

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运动发酵单胞菌益生拮抗效应的研究现状及展望

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四川师范大学学报(自然科学版) 2025年第1期48卷 15-27+149页

作者：何明雄庄勇陈茂李建婷吴波龚贵平秦晗刘林培谭芙蓉农业农村部成都沼气科学研究所生物质能技术研究中心农业农村部成都农村可再生能源开发与利用重点实验室

运动发酵单胞菌(Zymomonas mobilis)是一种唯一通过ED途径兼性厌氧发酵葡萄糖的微生物食品安全级菌株(GRAS),具有许多独特的生理特征与优良的工业生产特性.基于合成生物学方法和代谢工程改造，综述运动发酵单胞菌独特的生理特性及其在... 详细信息

运动发酵单胞菌(Zymomonas mobilis)是一种唯一通过ED途径兼性厌氧发酵葡萄糖的微生物食品安全级菌株(GRAS),具有许多独特的生理特征与优良的工业生产特性.基于合成生物学方法和代谢工程改造，综述运动发酵单胞菌独特的生理特性及其在食品、医药等不同领域的应用，重点介绍运动发酵单胞菌益生效应因子及其涉及的拮抗效应、群体感应等方面的研究进展及瓶颈.同时探讨持续开发、完善高效精准的基因编辑技术、理性和非理性设计代谢途径定向调控方法及高通量筛选手段，在运动发酵单胞菌益生特性的发现以及生物治疗与固氮等方面的突破，推动合成生物学理论研究和实践生产的发展.

关键词：运动发酵单胞菌益生效应群体感应底盘细胞合成生物学

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Control of abnormal pressure to hydrocarbon migration & accumulation:A case study on the lower assemblage of Yanchang formation in the middle area of Western Ordos Basin

Control of abnormal pressure to hydrocarbon migration & accu...

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第三届全国青年地质大会

作者： Yuhai Fan Junhu Wu Hui Wang Xingke Yang furong tan School of Earth Science and Land and Resources Chang'an University Geological Exploration Institute of Aerial Photogrammetry and Remote Sensing Bureau

1 Introduction Based on systematical analysis of the abnormal pressure distribution obtained by equilibrium depth method(Chen and Luo,1983)in the lower assemblage of Yanchang formation in the middle area of western Ordos Basin,combined with the distribution patterns of hydrocarbon reservoir discovered in the researched region,the relationship between abnormal pressure and distributions of hydrocarbon reservoir discovered and also hydrocarbon migration&accumulation is disclosured.

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支气管肺泡灌洗液诊断新型冠状病毒肺炎二例

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中华结核和呼吸杂志 2020年第4期43卷 337-339页

作者：谈芙蓉仇亚莉许桢常州市第三人民医院江苏213001

本文报道我院收治并行支气管肺泡灌洗诊断新型冠状病毒肺炎2例,1例有流行病学史、临床症状及影像学高度疑似,但反复咽拭子阴性患者;1例确诊新型冠状病毒肺炎患者,出院前临床症状消失,胸部CT显示影像学表现明显好转,咽拭子2次阴性,达到... 详细信息

本文报道我院收治并行支气管肺泡灌洗诊断新型冠状病毒肺炎2例,1例有流行病学史、临床症状及影像学高度疑似,但反复咽拭子阴性患者;1例确诊新型冠状病毒肺炎患者,出院前临床症状消失,胸部CT显示影像学表现明显好转,咽拭子2次阴性,达到出院标准。我们对2例患者的支气管肺泡灌洗液,分别进行新冠病毒ORF 1ab基因、N基因及新冠病毒核酸检测。结果表明,支气管肺泡灌洗液新型冠状病毒核酸检测阳性率高,对疑诊或者确诊新型冠状病毒肺炎患者出院咽拭子核酸检测阴性但肺部仍残留病灶行支气管肺泡灌洗有助于尽早诊断及指导治疗、判断预后。

关键词：新型冠状病毒支气管肺泡灌洗液咽拭子病毒核酸检测

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Discussion of gas hydrate origin in Juhugeng mining area of Muli coalfield

Discussion of gas hydrate origin in Juhugeng mining area of ...

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第三届全国青年地质大会

作者： furong tan Shiming Liu Fangpeng Du Weixiong Cui Yuqing Wan Chuang Ynag Weigang Liu Yuhai Fan Geological Exploration Institute of Aerial Photogrammetry and Remote Sensing Bureau Qinghai Institute of Coal Geological Prospecting Xi'an Research Institute of China Coal Technology & Engineering Group Corp

1 Introduction Muli Coalfield is located in the northeast of Tibetan *** has become a research hotspot in recent years,since the discovery of gas hydrate in Yaojie formation of Juhugeng mining,Muli coalfield.(Zhu,2009).Researches aimed at gas hydrate component,gas origin(Wang et al.,2009,Lu et al.,2010),formation condition(Zhu et al.,2010),microbial populations(Han et al.,2011)and characteristics of seismic(Xu et

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县级林业地理信息系统建立及应用

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林业勘察设计 2006年第1期26卷 92-94页

作者：檀芙蓉福建省永泰县林业局 350700

简要介绍以中国林业科学院唐小明博士开发的ViewgGIS3.0软件建立的永泰县森林资源地理信息管理系统的应用、存在问题及建议,以期对县级地理信息系统建立及应用提供依据。

关键词：地理信息系统建立应用永泰县

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