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| 1 | Early Permian Tarim Large Igneous Province in northwest China显示文摘Tarim Large Igneous Province(TLIP)is the second Late Paleozoic LIPs in China after the recognition of Emeishan LIP,and is a hot research topic in geosciences.On the basis of the analysis of research history about TLIP,this paper summarizes the research result during last twenty years and suggests the key research area in the future.The residual distribution range of TLIP is up to 250000 km2,and the largest residual thickness is 780 m.The eruption of basalt happened during 290–288 Ma and belongs to LIPs magmatic event with fast eruption of magma.The lithological units of the TLIP include basalt,diabase,layered intrusive rock,breccia pipe mica-olivine pyroxenite,olivine pyroxenite,gabbro,ultramafic dyke,quartz syenite,quartz syenite porphyry and bimodal dyke.The basalt and diabase of TLIP exhibit OIB-like trace element patterns and enrichment of LILE and HFSE,and mainly belong to high TiO2series.There is an obvious difference in isotope among the basalt from Keping and the basalt and dibase from the northern Tarim Basin.The basalt from Keping with negative Nd and high REE value derives from enriched mantle,and the diabase and basalt from the northern Tarim Basin with positive Nd and low REE value are related to depleted mantle.The crust uplifting in the Early Permian and the development of picrite and large scale dyke and formation of large scale V-Ti-Magnetite deposit in Wajilitag area support the view that the TLIP is related to mantle plume.The TLIP has a temporal-spatial relationship with Permian basic to ultra-basic igneous rock,which is distributed widely in Central Asia,and they represent a tectono-magmatic event with very important geodynamic setting.This paper also suggests that the deep geological process,the relation with mantle plume,mineralization,the relation with environmental change and biological evolution,and the geodynamics of the TLIP will be the key research topics in the future. | YANG ShuFeng CHEN HanLin LI ZiLong LI YinQi YU Xing LI DongXu MENG LiFeng | 2013 | Science China Earth Sciences2013，56，12： | 12 |
| 2 | Middle Triassic post-orogenic extension on Hainan Island: Chronology and geochemistry constraints of bimodal intrusive rocks显示文摘This work studies new petrological and geochemical data and zircon U-Pb ages for bimodal intrusive rocks from Xinglong region, Hainan Island. Zircon U-Pb dating yields mean 238 U/ 206 Pb ages of 238 ± 2 Ma and 234 ± 2 Ma for diabasic and granitic phases, respectively, representing the Middle Triassic emplacement. The diabase and granite bodies were formed from discrete mafic and acidic magma sources that experienced local mechanical mixing at their mutual contacts. Although SiO 2 content of intrusions is bimodal, trace element ratios indicate that both were formed in a post-orogenic extensional setting. Sr-Nd isotopic composition reflects a shared EMII type enriched mantle source component, possibly influenced by subduction-fluid metasomatism. | TANG LiMei CHEN HanLin DONG ChuanWan YANG ShuFeng SHEN ZhongYue CHENG XiaoGan FU LuLu | 2013 | Science China Earth Sciences2013，56，5： | 12 |
| 3 | The Exhumation History of North Qaidam Thrust Belt Constrained by Apatite Fission Track Thermochronology:Implication for the Evolution of the Tibetan Plateau显示文摘Determining the spatio-temporal distribution of the deformation tied to the India-Eurasian convergence and the impact of pre-existing weaknesses on the Cenozoic crustal deformation is significant for understanding how the convergence between India and Eurasia contributed to the development of the Tibetan Plateau. The exhumation history of the northeastern Tibetan Plateau was addressed in this research using a new apatite fission track(AFT) study in the North Qaidam thrust belt(NQTB). Three granite samples collected from the Qaidam Shan pluton in the north tied to the Qaidam Shan thrust, with AFT ages clustering in the Eocene to Miocene. The other thirteen samples obtained from the Luliang Shan and Yuka plutons in the south related to the Luliang Shan thrust and they have showed predominantly the Cretaceous AFT ages. Related thermal history modeling based on grain ages and track lengths indicates rapid cooling events during the Eocene-early Oligocene and since late Miocene within the Qaidam Shan, in contrast to those in the Cretaceous and since the Oligocene-Miocene in the Luliang Shan and Yuka region. The results, combined with published the Cretaceous thermochronological ages in the Qaidam Shan region, suggest that the NQTB had undergo rapid exhumation during the accretions along the southern Asian Andean-type margin prior to the India-Eurasian collision. The Cenozoic deformation initially took place in the North Qaidam thrust belt by the Eocene, which is consistent with the recent claim that the deformation of the northeastern Tibetan Plateau initiated in the Eocene as a response to continental collision between India and Eurasia. The immediate deformation responding to the collision is tentatively attributed to the pre-existing weaknesses of the lithosphere, and therefore the deformation of the northeastern Tibetan Plateau should be regarded as a boundary-condition-dependent process. | CHENG Xiaogan LIN Xiubin WU Lei CHEN Hanlin XIAO Ancheng GONG Junfeng ZHANG Fengqi YANG Shufeng | 2016 | Acta Geologica Sinica(English Edition)2016，90，3： | 10 |
| 4 | Silurian to Devonian foreland basin in the south edge of Tarim Basin显示文摘Based on the theory of plate tectonics, combin-ing with the isotopic dating of ophiolite, igneous and volcan-ics, geochemical test, rare earth element analyze and seismicinterpretation, this paper studies the pre-Carboniferous tec-tonics and sedimentary formation of the south edge of theTarim Basin and proves that there exists the Kunlun Oceanunder tensional tectonics during the Sinian and Cambrian inthe south edge of the Tarim Plate. After that, due to the colli-sion orogenesis, there formed the peripheral foreland basinin the south edge of Tarim. The Upper Silurian and Devo-nian molasses sedimentary system superposed on the Sinianand Middle Silurian passive margin flysch sedimentary sys-tem and formed the bivariate structure of the foreland basin.And at the same time, based on the field geology and seismicinterpretation, we have identified that the formation of theSilurian and Devonian have the character of half depositwhich shows thick in the south area and thin in the north,and the pre-Carboniferous thrust compression tectonics re-mained in the foreland thrust belt, which further demon-strates that there existed the Silurian and Devonian periph-eral foreland basin on the south edge of the Tarim Basin. | WEI Guoqi JIA Chengzao LI Benliang CHEN Hanlin | 2002 | Chinese Science Bulletin2002，47，S1： | 10 |
| 5 | Al matrix composites fabricated by solid-state cold spray deposition:A critical review显示文摘Cold spraying(CS),or cold gas dynamic spray(CGDS),is an emerging solid-state powder deposition process,allowing fast and mass production and restoration of metallic components.CS of metal matrix composites(MMCs)has attracted increasing attention from academia and industry over the last decades,especially in the area of Al matrix composites(AMCs),which have demonstrated a high potential for applications in aerospace,automotive,and electronics industries.This article aims to summarize the recent development of CS-processed AMCs in terms of composite powder preparation,deposition processing,microstructure evolution,mechanical and corrosion properties.Furthermore,this review also reports the relevant research progress with the focus on post-treatments of the AMCs for CS additive manufacturing applications including heat treatment,hot rolling,and friction stir processing.Finally,the challenges and perspectives on the fabrication of advanced AMCs by CS are addressed. | Xinliang Xie Shuo Yin Rija-nirina Raoelison Chaoyue Chen Christophe Verdy Wenya Li Gang ji Zhongming Ren Hanlin Liao | 2021 | Journal of Materials Science & Technology2021，，27： | 8 |
| 6 | Deformation geometry and timing of the Wupoer thrust belt in the NE Pamir and its tectonic implications显示文摘 | Xiaogan CHENG Hanlin CHEN Xiubin LIN Shufeng YANG Shenqiang CHEN Fenfen ZHANG Kang LI Zelin LIU | 2016 | Frontiers of Earth Science2016，10，4： | 6 |
| 7 | PERIODIC CARDINAL INTERPOLATORY WAVELETS显示文摘Periodicproblemsappearinvariousapplicationswhichmotivatedanextensivestudyofperiodicwaveletsinrecentyears.Y.Meyer[8,11]studie... | CHEN HANLIN * XIAO SHAOLIANG * | 1998 | Chinese Annals of Mathematics,Series B1998，19，2： | 6 |
| 8 | Discovery of Permian island-arc basalts in the Cenxi area and the tectonic significance──A piece of evidence for the paleo-Tethyan tectonic belt in western Guangdong and eastern Guangxi显示文摘Cenxi Permian basalts are the late Palaeozoic island-arc type basalts first found in South China. REE and trace element characteristics and distribution patterns show that this volcanic formation, which has been isotopically dated at 261 MaB.P. by the 39Ar/ 40Ar method, is of an active continental marginal island arc type, and that the tectonic environment at that time was an island-arc marginal sea or minor ocean basin related with the paleo-Tethyan tectonic belt in western Guangdong-eastern Guangxi. | ZHANG Boyou 1, ZHAO Zhenhua 1, SHI Manquan 1, YANG Shufeng 2 and CHEN Hanlin 2 1. Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China 2. Department of Earth Sciences, Zhejiang University, Hangzhou 310027, China | 1998 | Chinese Science Bulletin1998，43，21： | 6 |
| 9 | Conceptual models for fracturing in fault related folds显示文摘Fault related folds and fractures, which always improve reservoirs and trap capacity, especially in the oil and gas fields in western China, are of extreme importance for oil and gas exploration. Based on four assumptions and fault related fold theory, we propose four conceptual models for fracturing in fault related folds, i.e., a simple-step parallel fault bend anticline, a simple-step parallel fault propagation anticline, a multiple-bend fault-bend fold and a break-forward imbricate. Fracture conditions depend on structural evolution and specific site conditions. A case study of the Kulongshan Anticline in the Jiuquan Basin shows that our conceptual models match reality data very well. | LIN Xiubin | 2010 | Mining Science and Technology2010，20，1： | 5 |
| 10 | Correlations Between Single Nucleotide Polymorphisms,Cognitive Dysfunction,and Postmortem Brain Pathology in Alzheimer's Disease Among Han Chinese显示文摘In this study, the distribution of five Alzheimer's disease(AD)-related single nucleotide polymorphisms(SNPs) in the Han population was examined in combination with the evaluation of clinical cognition and brain pathological analysis. The associations among SNPs,clinical daily cognitive states, and postmortem neuropathological changes were analyzed in 110 human brains from the Chinese Academy of Medical Sciences/Peking Union Medical College(CAMS/PUMC) Human Brain Bank.APOE ?4(OR = 4.482, P = 0.004), the RS2305421 GG genotype(adjusted OR = 4.397, P = 0.015), and the RS10498633 GT genotype(adjusted OR = 2.375,P = 0.028) were associated with a higher score on the ABC(Ab plaque score, Braak NFT stage, and CERAD neuritic plaque score) dementia scale. These results advance our understanding of the pathogenesis of AD,the relationship between pathological diagnosis and clinical diagnosis, and the SNPs in the Han population for future research. | Qian Yang Kang Chen Hanlin Zhang Wanying Zhang Changlin Gong Qing Zhang Pan Liu Tianyi Sun Yuanyuan Xu Xiaojing Qian Wenying Qiu Chao Ma | 2019 | Neuroscience Bulletin2019，35，2： | 5 |
| 11 | WAVELETS FROM TRIGONOMETRIC SPLINE APPROACH显示文摘The explicit form for the orthonormal periodic trigonometric spline wavelet is given. We also give the decomposition and reconstruction equations.Each of the two equations involves onlytwo terms. We prove that the family of periodic trigonometric spline wavelets is dense in L2([0,2π]). | Chen Hanlin (Academia Sinica,China) | 1996 | Analysis in Theory and Applications1996，12，2： | 4 |
| 12 | Organic photodetectors based on supramolecular nanostructures显示文摘Self‐assembly of semiconducting(macro)molecules enables the development of materials with tailored‐made properties which could be used as active components for optoelectronics applications.Supramolecular nanostructures combine the merits of soft matter and crystalline materials:They are flexible yet highly crystalline,and they can be processed with low‐cost solution methods.Photodetectors are devices capable to convert a light input into an electrical signal.To achieve high photoresponse,the photogenerated charge carriers should be transported efficiently through the self‐assembled nanostructures to reach the electrodes;this can be guaranteed via optimalπ–electron overlapping between adjacent conjugated molecules.Moreover,because of the high surface‐to‐bulk ratio,supramolecular nanostructures are prone to enhance exciton dissociation.These qualities make supramolecular nanostructures perfect platforms for photoelectric conversion.This review highlights the most enlightening recent strategies developed for the fabrication of high‐performance photodetectors based on supramolecular nanostructures.We introduce the key figure‐of‐merit parameters and working mechanisms of organic photodetectors based on single components and p–n heterojunctions.In particular,we describe new methods to devise unprecedented planar and vertical devices to ultimately realize highly integrated and flexible photodetectors.The incorporation of ordered mesoscopic supramolecular nanostructures into macroscopic optoelectronic devices will offer great promise for the next generation of multifunctional and multiresponsive devices. | Yifan Yao Yusheng Chen Hanlin Wang Paolo Samorì | 2020 | SmartMat2020，1，1： | 4 |
| 13 | Cold spray additive manufacturing of Invar 36 alloy:microstructure,thermal expansion and mechanical properties显示文摘In this work,the Invar 36 alloys were manufactured using cold spray(CS)additive manufacturing technique.The systematic investigations were made on the microstructural evolution,thermal expansion and mechanical properties under as-sprayed(AS)and heat-treated(HT)conditions.XRD(X-ray diffraction)and ICP-AES(inductively coupled plasma atomic emission spectroscopy)analyses show that no phase transformation,oxidation,nor element content change have occurred.The X-ray computed tomography(XCT)exhibited a near fully dense structure with a porosity of 0.025%in the helium-produced sample under as-sprayed condition,whereas the nitrogen-produced samples produced at 5 MPa and 800℃show more irregular pore defects.He-AS sample shows a more prominent grain refinement than that of nitrogen samples due to the more extensive plastic deformation.The post heat-treatment exhibited a promoted grain growth,inter-particle diffusion,as well as the formation of annealing twins.Between25℃and 200℃,the nitrogen samples possessed lower CTE(coefficient of thermal expansion)values(1.53×10^(-6)/℃)compared with those produced by casting and laser additive manufacturing.The He-AS samples exhibited a noticeable negative CTE value between 25℃and 200℃,which may due to the significant compressive residual stress(-272 MPa)compensating its displacement with temperature increase during CTE test.The N2-HT and He-HT Invar 36 samples present a notable balance between strength and ductility.In conclusion,the CS technique can be considered as a potential method to produce the Invar36 component with high thermal and mechanical performance. | Chaoyue Chen Yingchun Xie Longtao Liu Ruixin Zhao Xiaoli Jin Shanqing Li Renzhong Huang Jiang Wang Hanlin Liao Zhongming Ren | 2021 | Journal of Materials Science & Technology2021，，13： | 4 |
| 14 | Petrogenetic model of the Permian Tarim Large Igneous Province显示文摘Over the last two decades great strides have been made in characterizing the spatial distribution, time sequence,geochemical characteristics, mantle sources, and magma evolution processes for various igneous rocks in the Early Permian Tarim Large Igneous Province(TLIP). This work has laid a solid foundation for revealing the evolutionary processes and genetic models of large igneous provinces(LIPs). This study systematically demonstrates the two-stage melting model for the TLIP based on our previous research work and predecessor achievements, and highlights the two types of magmatic rocks within the TLIP.The two-stage melting model suggests that the formation of the TLIP is mantle plume related. The early hot mantle plume caused the low-degree partial melting of the lithosphere mantle, while in the later stage, the plume partially melted due to adiabatic uplift and decompression. Therefore, this model carries signatures of both the 'Parana' and 'Deccan' models in terms of mantle plume activity. During the early stage, the mantle plume provided the heat required for partial melting of sub-continental lithosphere mantle(SCLM), similar to the 'Parana Model', while later the plume acted as the main avenue for melting, as in the 'Deccan Model'. Basalts that erupted in the first stage have higher 87Sr/86 Sr, lower 143Nd/144 Nd ratios, and are enriched in large ion lithophile elements and high field strength elements, indicating a possible origin from the enriched continental lithosphere mantle,similar to the Parana type geochemical features. The basic-ultrabasic intrusive rocks in the second stage exhibit lower 87Sr/86 Sr,higher 143Nd/144 Nd ratios relative to the basalts, consistent with the involvement of a more depleted asthenospheric material,such as a mantle plume, similar to the Deccan type geochemical features. The first stage basalts can be further subdivided into two categories, i.e., Group 1 and Group 2 basalts. Group 2 basalts have lower 87Sr/86 Sr and higher 143Nd/144 Nd ratios than Group 1 basalts, and lie between compositions of the Group 1 basalts and second stage magmatism. Group 2 basalts may be the intermediate component of the TLIP, and the whole TLIP is the result of plume and lithosphere interaction. Developing this petrogenetic model for the TLIP aids in comprehensively understanding its magmatism and deep geological and geodynamic processes. Furthermore, this work enriches the theories describing the origin of large igneous province and mantle plume activity. | YU Xing YANG ShuFeng CHEN HanLin LI ZiLong LI YinQi | 2017 | Science China Earth Sciences2017，60，10： | 4 |
| 15 | A novel approach for fabricating a CNT/AlSi composite with the self-aligned nacre-like architecture by cold spraying显示文摘A fully dense carbon nanotubes (CNTs) reinforced AlSi matrix composite with the multiscale nacre-like architecture was designed and successfully realized by flake powder metallurgy followed by cold spraying (CS). The nanolaminated and ultrafine-grained structure initially created in the CNT/AlSi flaky powder was perfectly conserved, due to the typical ‘cold’ feature of CS. As discussed based on finite element analysis and single splat observation, self-alignment behavior of the flaky powders during impact also allowed the formation of the microlaminated structure. Hence, the scalable CS technique opens a new avenue for bioinspired material design and fabrication with complex shape. | Xinliang Xie Chaoyue Chen Gang Ji Run Xu Zhanqiu Tan Yingchun Xie Zhiqiang Li Hanlin Liao | 2019 | Nano Materials Science2019，1，2： | 3 |
| 16 | Measurement of Neutron Capture Cross Section for ^(180)Hf | Chen Jinxiang Shi Zhaomin Tang Guoyou Zhang Guohui Institute of Heavy Ion Physics,Peking University,Beijing 100871Lu Hanlin Han Xiaogang Huang Xiaolong China Institute of Atomic Energy,P.O.Box 275(3),Beijing 102413 | 1997 | Chinese journal of nuclear physics1997，，2： | 3 |
| 17 | Theoretical investigations on heat transfer to H2O/CO2 mixtures in supercritical region显示文摘The supercritical H2O/CO2 mixture is the working fluid to drive a turbine in a novel power generation system with coal gasified in supercritical water.This system is promising because of zero pollution emission in contrast to the conventional coal-fired power plant.Heat transfer coefficients of the supercritical H2O/CO2 mixtures are important to design heat transfer devices in this system,which is similar to the role of heat transfer to supercritical water in conventional systems.However,heat transfer to supercritical mixtures has received less attention.Here,we show that the supercritical mixtures with H2O being one of the components,have similar convection heat transfer behavior to supercritical pure fluids for temperatures and pressures above the critical point of H2O.This phenomenon was demonstrated from two aspects.Firstly,the forced convection heat transfer coefficients of supercritical mixtures were numerically calculated using the simulation model for supercritical pure fluids and using the thermophysical properties(density,heat capacity,thermal conductivity and viscosity)of supercritical mixtures as input.The calculated results agree well with experimental data in the supercritical region.Secondly,the calculated results also agree well with the correlations for supercritical pure fluids.The mechanisms were investigated by molecular dynamics simulations on the diffusion of supercritical mixtures.These results lay the foundation for predicting convection heat transfer coefficients of supercritical mixtures and for designing heat transfer devices with supercritical mixtures as heat transfer fluids. | CHEN LongFei LIU Dong ZHANG HanLin LI Qiang | 2020 | Science China(Technological Sciences)2020，63，6： | 3 |
| 18 | Rapid synthesis of Ti-MCM-41 by microwave-assisted hydrothermal method towards photocatalytic degradation of oxytetracycline显示文摘This study employed microwave-assisted hydrothermal method to synthesize Ti-MCM-41,which are mesoporous materials with a high surface area and excellent photocatalytic ability. Fourier transform infrared spectroscopy(FTIR), X-ray diffraction(XRD), X-ray photoelectron spectroscopy(XPS), transmission electron microscopy(TEM), and ultraviolet–visible spectroscopy(UV–Vis) were employed. The XRD findings showed that Ti-MCM-41 exhibited a peak at 2θ of 2.2°, which was attributed to the hexagonal MCM-41 structure. The BET(Brunauer–Emmett–Teller) results agreed with the TEM findings that Ti-MCM-41 has a pore size of about 3–5 nm and a high surface area of 883 m^2/g. FTIR results illustrated the existence of Si–O–Si and Si–O–Ti bonds in Ti-MCM-41. The appearance of Ti2 p peaks in the XPS results confirmed the FTIR findings that the Ti was successfully doped into the MCM-41 structure. Zeta(ζ)-potential results indicated that the iso-electric point(IEP) of Ti-MCM-41 was at about pH 3.02. In this study, the photocatalytic degradation of oxytetracycline(OTC) at different pH was investigated under Hg lamp irradiation(wavelength 365 nm). The rate constant(K′_(obs)) for OTC degradation was 0.012 min-1at pH 3. Furthermore, TOC(total organic carbon) and high resolution LC–MS(liquid chromatography–mass spectrometry) analyses were conducted to elucidate the possible intermediate products and degradation pathway for OTC. The TOC removal efficiency of OTC degradation was 87.0%, 74.4% and 50.9% at pH 3, 7 and 10, respectively. LC–MS analysis results showed that the degradation products from OTC resulted from the removal of functional groups from the OTC ring. | Hanlin Chen Yen-Ping Peng Ku-Fan Chen Chia-Hsiang Lai Yung-Chang Lin | 2016 | Journal of Environmental Sciences2016，28，6： | 3 |
| 19 | The Ductile Deformation Characteristics of Caledonian Intracontinental Orogeny in the Northeastern Jiangshan-Shaoxing Tectonic Zone:Insights from Magnetic Fabric Study and Its Geodynamic Implication显示文摘The Jiangshan-Shaoxing tectonic zone was the northeastern boundary between the Yangtze Block and the Cathaysia Block during the Neoproterozoic and was an intracontinental orogenic belt during late of the early Paleozoic.In this tectonic zone,there develops a lot of mylonite underwent strong ductile deformation and schist,gneiss,and amphibolite with medium and high grade metamorphism which was formed during the late of early Paleozoic.The research of geometry and kinematic of ductile deformation in Jiangshan-Shaoxing tectonic zone is very important to reveal the tectonic process of intracontinental orogeny.This paper uses the anisotropy of magnetic susceptibility(AMS)to determine the ductile deformation geometry and kinematic of Jiangshan-Shaoxing tectonic zone combing with the field survey.In this study,190 specimens of 19 locations and 221 specimens of23 locations from Wangjiazhai section and Lipu-Sizhai section were analyzed.The magnetic foliation over magnetic lineation in both Wangjiazhai and Lipu-Sizhai sections together with the field observations indicated a compressional deformation pattern.3 and 4 strong ductile deformation zones can be established in the Wangjiazhai section and the Lipu-Sizhai section,respectively.According to the magnetic fabric and petro-fabric studies,the Northeastern Jiangshan-Shaoxing tectonic zone suffered two kinds of deformation patterns during the late early Paleozoic,i.e.,the thrusting deformation followed by sinistral shear deformation. | GONG Genhui CHEN Hanlin WANG Fang LIN Xiubin MENG Lifeng | 2016 | Acta Geologica Sinica(English Edition)2016，90，1： | 3 |
| 20 | Structural Characteristics and their Significance for Hydrocarbon Accumulation in the Northern Slope of the Central Sichuan Paleo-uplift显示文摘Based on 2D and 3D seismic data,the latest drilling data and field outcrop data of the northern slope of the Central Sichuan paleo-uplift,the structural analysis method is used to analyze unconformity development characteristics and fault characteristics during the key structural transformation period,discussing the influence of the structural characteristics on the hydrocarbon accumulation of deep carbonate rocks.The results show that:(1)The two key unconformities of the Tongwan and Caledonian periods were primarily developed in deep carbonate rocks.Firstly,Tongwan’s unconformities are characterized by regional disconformities between the second and third members of the Dengying Formation,the top formation of the Sinian and the lower Cambrian,strips of which zigzag through the north and south sides of the study area.Secondly,the Caledonian unconformity is characterized by a regional unconformable contact between the lower Permian and the ower Paleozoic strata.From NE to SW,the age of the strata,which were subject to erosion,changes from new to old,the denudation distribution showing as a nose-shaped structure which inclines towards the ENE.(2)Boundary fault and transtensional strike-slip faults developed in the Sinian to Paleozoic strata.In profile,there are three types of structural styles:steep and erect,flower structures,’Y’and reversed’Y’type faults.In plane view,the Sinian developed extensional boundary faults extending in an almost NS direction,strike-slip faults developing and extending linearly in approximately EW,WNW and NE strikes in the Cambrian,with characteristically more in the south and less in the north.(3)The faults in the northern slope show obvious zonal deformations in transverse view as well as significant stages and stratified activity in a longitudinal direction.Among them,the activity of faults in the Sinian was the strongest,followed by the activity in the Cambrian period,the activity intensity of faults in the Permian period being the weakest.This fault activity can be divided into four periods:Sinian,Cambrian-Permian,the early Indosinian period and the late Indosinian-Himalayan period,the transtensional strikeslip faults being the products of oblique extensions of pre-existing weak zones in the Xingkai and Emei taphrogenesis,with a particular inheritance in the main faults.(4)Combined with hydrocarbon accumulation factors,it is considered that the epigenetic karstification of the Tongwan and Caledonian unconformities in the northern slope controlled the formation and distribution of carbonate karst reservoirs over a large area,also acting as a good pathway for oil and gas migration.The extensional faults developed at the margin of the NS trending rift,controlling the sag-platform sedimentary pattern in the Dengying Formation of the Sinian.Strike-slip faults in NE,WNW and ENE directions may control the microgeomorphological pattern inside the platform and intensify the differential distribution of grain beach facies.The multi-stage hereditary activity of strike-slip faults not only improved the porosity and permeability of the reservoirs,but also acted as the main channel of oil and gas migration,providing favorable conditions for the development of the current multi-layer gasbearing scenario in the northern slope of the Central Sichuan Basin. | TIAN Xingwang LIU Guangdi LUO Bing YANG Yu WEN Long ZHANG Benjian CHEN Xiao SU Guiping SONG Zezhang PENG Hanlin ZHOU Gang YAN Wei YANG Dailin WANG Yunlong SUN Yiting DOU Shuang | 2022 | Acta Geologica Sinica(English Edition)2022，96，4： | 2 |
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