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| 1 | Geological constraints of giant and medium-sized gas fields in Kuqa Depression显示文摘There is a gas-rich and well-charged petroleumsystem in the Kuqa Depression where Triassic and Jurassicsource rocks play important roles. Distributed in an area ofmore than 10000 km and with a thickness of up to 1000 m,they are composed of dark mudstones, carbonaceous mud-stones and coal seams containing 6%, 40% and 90% of TOC,respectively, and are mainly the humic organic matter. Ashigh-quality regional cap rocks, the Neogene and Eogenegypsum rocks and gypseous mudstones matched well withthe underlying Neogene and Cretaceous-Eogene sandstones.They have formed the most favorable reservoir-seal assem-blages in the Kuqa Depression. Also the Jurassic sandstonesand mudstones formed another favorable reservoir-seal as-semblage. The traps are shaped late in the fold-thrust belt,mainly fixed in the Tertiary-Quaternary, where ten structurestyles have been distinguished. These traps spread as a zonein N-S, are scattered like a segmental line in W-E and showtier-styled vertically. The best traps are gypsum-salt coveredfault-bend anticlines related to the passive roof duplex. Thispetroleum system is characterized by late accumulation. Inthe early Himalayan Movement, mainly gas condensate andoil accumulated and were distributed in the outer circularregion of the kitchen; whereas in the middle and late Hima-layan the gas accumulations mainly formed and were dis-tributed in the inner circular region near the kitchen. Theoverpressure of gas pools is common and is formed by sealcapacity of thick gypsum layers, extensive tectonic compres-sion and large uplift. The well-preserved anticline traps un-derlying the high-quality regional cap rocks of the Tertiarygypsum rocks and gypseous mudstones are the main targetsfor the discovery of giant and medium-sized gas fields. Aboveconclusions are important for the petroleum geology theoryand the exploration of the fold-thrust belt in foreland basinsin central and western China. | JIA Chengzao GU Jiayu ZHANG Guangya | 2002 | Chinese Science Bulletin2002，47，S1： | 17 |
| 2 | Depositional architecture of the Tertiary tectonic sequences and their response to foreland tectonism in the Kuqa depression, the Tarim Basin显示文摘The Tertiary Kuqa depression is a foreland basin generated by flexural subsidence resulting from the southward thrusting of the southern Tianshan Mountains. Tertiary basin fills of the depression can be classified into four tectonic sequences bounded by gentle angular unconformities. The sequences are composed of two parts, the lower transgressive and the upper progradational successions, which are separated by a regional maximum transgressive surface. The development of these sequences is attributed to the foreland tectonic process from flexural subsidence caused by thrust loading to rebounded uplift due to the erosion and stress release. The generation of the angular unconformities defining the tectonic sequences has been interpreted as the result of the rebounded uplift and the following thrusting. It has been found that there is a significant difference in depositional pattern between the northeastern and the northwestern margins. The relatively strong thrusting and mountain building occurring along the northwestern margin resulted in the development of thick-bedded alluvial fan and angular unconformities. The northeastern margin, in contract, lacks thick alluvial fan accumulation due to weak thrusting. This difference is likely related to the pre-existing east-west partition of the basin basement. | 林畅松 肖建新 刘景彦 陈建强 张燕梅 纪云龙 | 2002 | Science China Earth Sciences2002，45，3： | 11 |
| 3 | Depositional sequence architecture and filling response model of the Cretaceous in the Kuqa depression,the Tarim basin显示文摘The Cretaceous system of the Kuqa depression is a regional scale (second order) depositional sequence defined by parallel unconformities or minor angular unconformities. It can be divided into four third-order sequence sets, eleven third-order sequences and tens of fourth- and fifth-order sequences. It consists generally of a regional depositional cycle from transgres-sion to regression and is composed of three sets of facies associations: alluvial-fluvial, braided river-deltaic and lacustrine-deltaic facies associations. They represent the lowstand, transgres-sive and highstand facies tracts within the second-order sequence. The tectonic subsidence curve reconstructed by backstripping technique revealed that the Cretaceous Kuqa depression underwent a subsidence history from early accelerated subsidence, middle rapid subsidence and final slower subsidence phases during the Cretaceous time, with the correspondent tectonic subsidence rates being 3035 m/Ma, 4045 m/Ma and 510 m/Ma obtained from northern foredeep. This is likely attributed to the foreland dynamic process from early thrust flexural sub-sidence to late stress relaxation and erosion rebound uplift. The entire sedimentary history and the development of the three facies tracts are a response to the basin subsidence process. The slower subsidence foreland gentle slope was a favorable setting for the formation of braided flu-vial deltaic systems during the late period of the Cretaceous, which comprise the important sandstone reservoirs in the depression. Sediment records of impermanent marine transgression were discovered in the Cretaceous and the major marine horizons are correctable to the high-stands of the global sea level during the period. | LIN Changsong1, WANG Qinghua2, XIAO Jianxin1, WANG Guolin2, LIU Jingyan1 & JI Yunlong1 1. The Laboratory Center of the China University of Geosciences, Beijing 100083, China 2. The Institute of the Tarim Oil and Gas Exploration and Development, PetroChina Company Limited, Korla 841000, China | 2004 | Science China Earth Sciences2004，47，z2： | 11 |
| 4 | Development of joints and shear fractures in the Kuqa depression and its implication to regional stress field switching显示文摘The superimposed basin must have undergone the changes of regional stress field. Study on the nature and switch of regional stress field of superimposed basin is very useful to understanding its stress state and tectonic events during its formation and evolution. As sensitive markers of small stress changes, joint and shear fracture, characterized by consistency of ori-entation over wide area, can be used to reconstruct paleostress state and its evolution. Detailed observations and analysis on the orientations, geometrical patterns, sequences of joints and shear fractures and their chronological relation to faults and folds show that, the NEE-SWW systematic joints and NNW-SSE systematic joints developed in the Mesozoic and Cenozoic strata are much more prominent than NW-SE systematic joints and shear fractures with different orientations. And the NWW-SEE and NW-SE systematic joints formed later than NEE-SWW systematic joints but earlier than shear fractures with different orientations. According to the rela-tionships between joint and shear fractures and stress, the NEE-SWW systematic joints are in-ferred to result from lateral weak extension caused by the late Cretaceous regional uplift, while the NNW-SSE and NW-SE systematic joints are interpreted as syn-tectonic deformation relating to strong N-S compression in the Neogene. But some conjugate shear fractures occur probably due to sinistral strike-slip faulting in the Kuqa depression. At the beginning of the Neogene, the stress field changed and the maximal principal stress s1 switched from vertical to horizontal. | ZHANG Zhongpei WANG Qingchen | 2004 | Science China Earth Sciences2004，47，z2： | 7 |
| 5 | The generation and accumulation of natural gas from Yinan 2 gas pool in Kuqa Depression显示文摘By using the methods of hydrocarbon generation kinetics and carbon isotope kinetics, combined with geological background of natural gas pool formation, the generation and accumulation of natural gas from Yinan 2 gas pool was studied in Kuqa Depression of the Tarim Basin. Natural gas of Yinan 2 gas pool is mainly derived from Middle and Lower Jurassic coal-bearing source rocks, and generally belongs to long time-accumulated gas. It is suggested that Yinan 2 gas is chiefly accumulated in the last 5 Ma, its Ro ranges from 1.25% to 1.95%, and the loss rate of natural gas is about 25%-30%. This work not only complements and reduces the deficiency of formation model of natural gas pools which traditionally depends on the matching relationships between source rock, reservoir, cap rock, and trap, but also is a useful reference in the study of other gas pools. | LI Xianqing XIAO Xianming TANG Yongchun XIAO Zhongyao Ml Jingkui LIU Dehan SHEN Jiagui LIU Jinzhong | 2004 | Chinese Science Bulletin2004，49，S1： | 6 |
| 6 | Discovery and its geological significance of the mantle- derived helium in the inclusions of the Ordovician oil-bearing reservoir rocks in the Huanghua depression,China显示文摘The values of the helium isotopes in the inclusions of the Ordovician reservoir rocks in the Kongxi buried hill belt in the Huanghua depression were first measured and the source of helium and its geological significance were investigated in comparison with those of the helium isotopes in the conclusions in the Ordovician rocks in the Ordos basin and the Tarim basin. The input of the mantle-derived helium into the inclusions in the carbonate reservoir rocks was found from the Konggu 3 well, the Konggu 4 well, and the Konggu 7 well in the Kongxi buried hill belt. The 3He/4He and R/Ra in the conclusions in the Ordovician oil-bearing reservoir rocks in the Konggu 7 well average 2.54×10-6(3) (sample quantity, the same below) and 1.82(3), respectively. The percent of the mantle-derived helium in the inclusions of the reservoir rocks in the Konggu 7 well reaches up to an average of 23.0%(3). The age of the contribution of the mantle-derived helium to the inclusions in the Kongxi buried hill belt is in the Late Triassic or the Early Tertiary. The finding of the mantle-derived helium shows that the interaction of the deep crust with mantle and the activity of deep faults occurred, the terrestrial heat flow value was high, and mantle-derived inorganic gas pools might be formed in the Kongxi buried hill belt. The finding of the mantle-derived helium in the inclusions of oil-bearing reservoir rocks also provides a new way for researching the activity of mantle-derived matter and its associated geological problems. | ZHANG Xiaobao XU Yongchang SUN Mingliang CHENG Keming LIU Wenhui LI Xiufen MA Liyuan | 2004 | Science China Earth Sciences2004，47，1： | 4 |
| 7 | Lacustrine biomass: An significant precursor of high wax oil显示文摘Although a variety of precursors have been proposed for the formation of high molecular weight hydro-carbons (HMWHCs) in crude oil, their precise origin re-mains elusive. Quantitative studies of macrocrystalline wax and microcrystalline wax content of source rock extracts from the Damintun depression, Liaohe Basin, a typical high wax producing area, coupled with microscopical maceral composition studies and pyrolysis-GC analysis indicate that oil shale enriched in lacustrine biomass makes a primary contribution to wax in oil. The main precursors of high wax oil are lacustrine alginites and their amorphous matrix, which are highly aliphatic in nature and have high genera-tive potential for HMWHCs. Wax generation efficiency could be affected by organic material abundance and matur-ity. The high abundance and low maturity of organic mate-rial are favorite for the formation of high quantity of wax, which declines with decreasing organic abundance and in-creasing thermal maturity. This suggests that wax is derived from organic-rich lacustrine biomass at early stages of maturation (RO = 0.4%—0.7%). Although the contribution of high plant cuticular wax and sporopollen cannot be ruled out, lacustrine biomass is more important in the formation of high wax oil. | Haiping Huang Yabin Zheng Zhanwen Zhang Jinyou Li | 2003 | Chinese Science Bulletin2003，48，18： | 3 |
| 8 | Pb, Sr isotopes in organic matter of Lower Tertiary hydrocarbon source rocks in Liaohe Fault Depression显示文摘The Pb, Sr isotopic compositions in organic matters (kerogen and soluble organic matter) of Lower Tertiary hydrocarbon source rock in Liaohe Fault Depression is first reported. There is a great variable rang of Pb isotopic compositions in kerogen, 206Pb/204Pb = 17.488-18.656, 207Pb/204Pb= 15.388-15.692, 208Pb/204Pb = 37.656-37.484. And soluble | Jinglian Zhang Bingquan Zhu Yixian Cheng Xianglin Tu Zhengling Chao Chengjun Zhang Qianhua Xiao Jingyou Li Mingzhi Piao | 1999 | Chinese Science Bulletin1999，44，23： | 3 |
| 9 | Alkaline diagenesis and its influence on a reservoir in the Biyang depression显示文摘Alkaline diagnesis is a diagenetic process that a reservoir undergoes under an alkaline environment. Because of the influence of alkaline formation water, the most typical characteristics of diagnesis is that quartz is obviously dissolved, feldspar is massively enlarged, and less late carbonate cement is formed in the evolution of carbonate minerals. With the decrease of the alkalinity of the formation water in diagenesis, the quartz overgrowths become common. The change in the chemical characteristics of the formation water leads to a more complex distribution of reservoir porosity at different depths than that of the secondary porosity formed by classical acidic water. It also makes the B stage of early diagenesis the important development period of secondary porosity. | 邱隆伟 姜在兴 操应长 邱荣华 陈文学 涂阳发 | 2002 | Science China Earth Sciences2002，45，7： | 2 |
| 10 | CO_2 gas pools from the earth interior in Jiyang Depression显示文摘The Jiyang Depression is an intercontinental extensional basin formed on thePaleozoic craton by the interaction among the Eurasia, Kula-Pacific and Indian platessince the Triassic Period. In that depression there are a number of CO2 gas poolsrepresented by the Pingfangwang gas-cap, Pingnan buried hill gas-cap, wells Hua-17, | 郑乐平 冯祖钧 徐寿根 廖永胜 | 1996 | Chinese Science Bulletin1996，41，8： | 1 |
| 11 | Limited proteomic response in the marine snail Melarhaphe neritoides after long-term emersion显示文摘Rocky intertidal organisms are commonly exposed to environmental gradients, promoting adapta-tions to these conditions. Emersion time varies along the intertidal range and in the supralittoralzone is frequently larger than a single tidal cycle, even lasting for weeks. The planktonic-dispersinggastropod Melarhaphe neritoides is a common species of the high shore, adapted to reduce waterloss in order to survive during long-term emersion. In this study, we investigated the molecular re-sponse, at the proteome level, of M. neritoides collected in high-shore tide pools to a series ofemersion periods, from 8 to 24 days, in laboratory conditions. We compared this response to indi-viduals maintained submerged during this period, because this was their original habitat. We alsoincluded a reversion treatment in the study, in which emersed individuals were returned to the sub-merged conditions. Although we detected an increase in overall protein concentration with longeremersion periods, contrary to general expectation, the two dimensional electrophoresis (2DE)-based proteomic analysis did not show significant differences between the treatments at the levelof individual protein spots, even after an emersion period of 24 days. Our results suggest that themetabolism remains unaltered independent of the treatment carried out or the changes are verysubtle and therefore difficult to detect with our experimental design. We conclude that M. neri-toides could be equally adapted to emersion and submersion without drastic physiologicalchanges. | Angel R DIZ Margarita ALVAREZ-RODRiGUEZ Monica R. ROMERO Emilio FOLAN-ALVAREZ Juan GALINDO | 2017 | Current Zoology2017，63，5： | 0 |
| 12 | Pool-formation and secondary change of biodegraded viscous oils:Case study of reservoir section in the ZhengjiaWangzhuang Oilfield, Jiyang Depression显示文摘It is demonstrated by various geochemical indexes that the Zhengjia-Wangzhuang Oilfield with viscous crude oil in the Jiyang Depression has been sourced from the contribution of matured source rocks in the upper Es4. The principal cause leading to the densification of crude oils would be biodegradation, with the degradation level of crude oils being ranked as 2-8; vertically, the biodegradation level increases from the top to bottom of the oil column, with a distinctive biodegradation gradient occurring. Calculated parameters of sterane, terpane and methyl-phenanthrene have indicated that the source-rock’s maturity of crude oils and asphaltic sands ranges from 0.7 to 0.9, and based on the calculation of Easy Ro model, the temperature of hydrocarbon generation in the source rock would be within 120-140℃, which coincides with the measurements of reservoir inclusions. The measured homogenization temperature would represent the generation temperature of the source rock, and be fairly different from that | WANG Zhenqi, PENG Ping’an, YU Chiling, LU Hong, ZOU Yanrong, ZHANG Linye & LIU Junmin State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China Department of Earth Science, Yangtze University, Jingzhou 434023, China Research Institute of Geology, Shengli Oilfield Co. Ltd., SINOPEC, Dongying 257015, China | 2004 | Chinese Science Bulletin2004，49，S1： | 0 |
| 13 | Origin and migration of natural gases in central area of Western Sichuan Depression——Evidence for carbon isotope geochemistry | 樊然学 | 2000 | Progress in Natural Science:Materials International2000，10，1： | 0 |
| 14 | COVID-19–Related Insomnia Populations Research and Management Strategies:A Review显示文摘Coronavirus disease 2019(COVID-19)has affected the quality of sleep for various populations,causing anxiety and depression world-wide.COVID-19–related insomnia(COVIDRI)appears to be more common in certain populations,including females,urban residents and other individuals who reside in high-risk COVID-19–related areas,lack higher socioeconomic and educational levels,have a history of underlying mental illness,have no access to social support and work,or have been mandated for isolation.Among vulnerable pop-ulations,pregnant women,adolescents and children are more likely to suffer from anxiety and depression,which leads to irregular sleep-wake cycles and significantly poor sleep quality.Insomnia in COVID-19 patients is associated with decreased immune levels,ex-cessive psychological stress and severe anxiety.The COVIDRI incidence and severity among frontline healthcare workers is high,espe-cially among females and those working in isolation wards and intensive care units.The factors related to COVIDRI for college students during home study are stress from upcoming graduation,disharmonious family relationships and inadaptability to online education.For military personnel,anxiety and depression are the main causes of poor sleep quality.Based on the characteristics of different popula-tions,active Chinese and Western medications,non-drug therapy,psychological counseling and suitable sleep management are vital measures to strengthen immunity,alleviate insomnia and limit recurrence. | Fei-Xiang Liu Zi-Bei Dong Min Zhao Ya-Hui Gao Xiang Li Ya-Nan Jiang Yi-Ming Li Yu-Xin Zheng Zhen Wang Yan-Chen Feng Ya-Li Liu | 2023 | Infectious Microbes & Diseases2023，5，3： | 0 |
| 15 | Current Situation and Application in Coal-Generated Hydrocarbons显示文摘The characteristics and research methods of terrigenous organic hydrocarbon-generated source rock in coal measures are studied in this thesis. After abundance of organic matters, pyrolysis parameter of rocks and hydrocarbon generated capacity of macerals are basically discussed in coal measures of the Cretaceous Muleng-Chengzihe formation in Suibin depression in Sanjang basin, the hydrocarbon generated grade in coal-genera^ted source rock is ascertained in this depression. At last, we think that it is a main attack prospect in coal-genera^ted hydrocarbons study in the future to research the macerals of coal measures organic source rock and to build a criterion to classify the coal-generated hydrocarbons in Northeast region. | YANG Guang (College of Earth Science, Jilin University, Changchun, 130061, P.R.China) XU Hongdong (No.7 Oil Extraction Factory, Daqing Oil Field ltd., Heilongjiang Province, 163517, P.R.China) | 2001 | Global Geology2001，6，2： | 0 |
| 16 | Decomposition of gravity field and grade separation structure in Qinling-Dabie area显示文摘The regional gravity field and residual gravity anomaly in the Qinling-Dabie area were separated for the first time, which might be produced by the relief of the Moho and the inhomogeneity of crust, separately. The residual anomalies show that there are two Mesozoic subducting magmatic rocks belts. The northern belt includes West Qinling magmatic rock belt and East Qinling magmatic rock belt and extends through Nanyang Basin and dies out to the west of Fuyang. The southern belt coincides with Tongbai-Dabie area. To the west of East Qinling there is also a residual gravity low which might coincide with early Paleozoic depression. | 袁惟正 刘寿彭 袁学诚 | 1996 | Science China Earth Sciences1996，39，S1： | 0 |
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