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Multiphase tectonic movements, cap formations and evolution of the Majiang paleo-reservoir

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Petroleum Science 2011年第2期8卷 127-133页

作者： Tang Liangjie cui Min State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum Beijing 102249 China CNOOC Research institute Beijing 100027 China

The Majiang paleo-reservoir is a typical destroyed hydrocarbon reservoir, buried in carbonate strata of China＇s southern marine-facies. Field geological explorations, interpretations of seismic profiles and balanced cross-section restorations around this paleo-reservoir reveal that its formation and evolution have been restricted by multiphase tectonic movements of different intensities. A regional tectonic mechanism and model have been suggested for the formation and evolution of the Majiang paleo- reservoir. geological field exploration has been carried out along three typical Silurian cross-sections and rock samples were tested in combination with water-rock interaction. Based on the result of cap tests, the planar distribution, the residual thickness, the erosion thickness and the preservation conditions, the Silurian mudstone cap is discussed around the Majiang paleo-reservoir. Combining the hydrodynamic conditions of its formation and evolution and its tectonic movements, we determined the fact that the thicker the cap is, the more resistant it is to hydrodynamic destruction. The multi-phase formation and destructive geological model of the paleo-reservoir is established through an overall analysis of multi- phase tectonic evolutions, cap developments, hydrodynamic conditions and solid mineral metallogenic ages measured by Rb-Sr, Pb and Sm-Nd isotope techniques.

关键词： Multiphase tectonic evolution key tectonic changes cap evolution hydrocarbonpreservation Majiang paleo-reservoir

改进的QuEChERS结合HPLC-MS/MS快速测定土壤中硝基酚类化合物

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化学研究与应用 2024年第4期36卷 905-909页

作者：崔君自然资源部上海资源环境检测中心上海200072 上海市地质勘查技术研究院上海200072 上海市地质调查研究院上海200072

本文提出了土壤样品改进的QuEChERS萃取前处理方法,并结合液相色谱-质谱法测定土壤中4.酚类化合物(4.硝基酚,2.4.二硝基酚,2.6-二硝基酚,2.4.6-三硝基酚)含量的方法。1 g土壤样品,置于15ml塑料离心管中,加入2.mL纯水浸润{4. min,后加入2...

本文提出了土壤样品改进的QuEChERS萃取前处理方法,并结合液相色谱-质谱法测定土壤中4.酚类化合物(4.硝基酚,2.4.二硝基酚,2.6-二硝基酚,2.4.6-三硝基酚)含量的方法。1 g土壤样品,置于15ml塑料离心管中,加入2.mL纯水浸润{4. min,后加入2.mL甲醇,室温下涡旋{4.min,后使混合液以4.00 r·mi^(-1)的转速离心{4.min。取1 mL上层清液,用0.2.μm滤膜过滤后直接上机检测,使用多反应监测(MRM)模式检测,电喷雾电离源负离子模式(ESI-),外标法定量。实验结果表明,4.硝基酚类化合物在2.0~100.0μg·L^(-1)的浓度范围的线性相关系数均大于0.998;方法检出限(MDL)为1.76~4.19μg·kg^(-1);以实际土样为基体,加入低中高{4.浓度水平的标准溶液进行加标回收试验,加标回收率在85.6%~112.,相对标准偏差(n=6)在1.4.~6.86%之间。

关键词：硝基酚类化合物液相色谱-质谱法 QuEChERS

Cryogenian and Ediacaran integrative stratigraphy,biotas,and paleogeographical evolution of the Qinghai-Tibetan Plateau and its surrounding areas

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Science China Earth Sciences 2024年第4期67卷 919-949页

作者： Lang SUN Malik Muhammad Saud Sajid KHAN Chuan YANG Zhixin SUN Bing PAN Shehryar AHMED Lanyun MIAO Weichen SUN Chunlin HU Xiaojuan SUN cui LUO Bo CHEN Zongjun YIN Fangchen ZHAO Guoxiang LI Maoyan ZHU State Key Laboratory of Palaeobiology and Stratigraphy Nanjing Institute of Geology and PalaeontologyChinese Academy of SciencesNanjing 210008China College of Earth and Planetary Sciences University of Chinese Academy of SciencesBeijing 100049China

The complex evolutionary history of the Qinghai-Tibetan Plateau and its surrounding areas,including the continental blocks(Indian,Lhasa,South Qiangtang,Tarim,Olongbuluk,Central Qilian,Alxa,North China,Yangtze,Central Iran and Oman)and the orogenic belts between them,has long been the frontier in Earth science *** Cryogenian and Ediacaran strata are extensively distributed in these ***,relatively complete Cryogenian and Ediacaran successions have been discovered in Oman,Indian,Yangtze,and Tarim blocks,while only the Ediacaran successions have been reported in Iran,the South Qiangtang,Central Qilian,Alxa,and North China *** on previous studies together with the integration of new materials and advancement obtained through the Second Tibetan Plateau Scientific Expedition and Research,this review aims to synthesize a correlative stratigraphic framework of the representative Cryogenian and Ediacaran sequences from the Qinghai-Tibetan Plateau and its surrounding ***,the Cryogenian and Ediacaran biotas and major geological events in these areas are comprehensively discussed in aspects of current research *** results indicate that,in general,Ediacaran fossils of each area exhibit distinct features in preservation and assemblage composition,but the typical late Ediacaran fossils Cloudina and Shaanxilithes have been reported from most of these *** addition to the two global Cryogenian glaciations,late Ediacaran glaciogenic deposits are extensively recorded in the areas within and around the northern QinghaiTibetan Plateau(including the North China,Alxa,Central Qilian,Olongbuluk,and Tarim blocks,and the North Qilian Accretionary Belt),as well as central and southern ***,further research is required to determine the age,distribution,and origin of these late Ediacaran glaciogenic ***,the middle Ediacaran DOUNCE/Shuram Excursion is widely documented in the Qinghai-Tibetan Plateau and its surroundi

关键词： Qinghai-Tibetan Plateau Cryogenian Ediacaran Stratigraphy Palaeogeography Biota Gondwana

Content analysis of systematic reviews on effectiveness ofTraditional chinese Medicine

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Journal of Traditional chinese Medicine 2013年第2期33卷 156-163页

作者： junwen Wang Meng cui Hongguan Jiao Yuanyuan Tong Jun Xu Yingkai Zhao Mei Han Jianping Liu institute of Information onTraditional chinese Medicine China Academy of Chinese Medical SciencesCACMS Center for Evidence Based chinese Medicine Beijing University of Chinese Medicine

OBJECTIVE:To evaluate evidence for the efficacy of Traditional chinese Medicine(TCM) in systematic ***:chinese(TCM Periodical Literature Database,chinese Biological Medicine database,chinese Medical Current Contents,China Hospital Knowledge Database journal fulltext database,Virtual Machining and Inspection System,and Wanfang) and English(Cochrane Database of Systematic Reviews,PubMed and Embase) databases were ***:Three thousand,nine hundred and fifty-five articles were initially identified,606 of which met the inclusion criteria,including {4.1 in English(83.from the Cochrane Database) and 3.5 in *** number of articles published each year increased between 1989 and *** disease was the most studied target *** measures included TCM preparations(177 articles),acupuncture(13. articles) and combinations of TCM and Western Medicine(3. articles).Control measures included positive medical(177 articles),basic treatment(100 articles),placebo({4.9 articles),and blank and mutual(107 articles).All articles included at least one reference;the greatest number was *** of 10 articles with high quality references demonstrated curative effectsagainst target diseases including upper respiratory tract infection,dementia and *** that were not recommended were tripterygium for rheumatoid arthritis and TCM syndrome differentiation for pediatric *** 10.4. of the studies,the authors concluded that the intervention had a curative *** assessors agreed with the authors' conclusions in 88.3.4. of cases,but rejected 8.94.(54.articles).CONCLUSION:1) Training in systematic review methods,including topic selection,study design,methods and technology,should be improved.{4. Upper respiratory tract infection,dementia and depression may become the predominant diseases treated by TCM,and the corresponding interventions could be developed into practical applications.3. Use of non-recommended inter

关键词： Evidence-based medicine Systematicreview Traditional chinese Medicine Curative ef-fect Content analysis

Identification and distribution of 13.03.landslides in the northwest margin of Qinghai-Tibet Plateau based on human-computer interaction remote sensing interpretation

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China geology 2024年第2期7卷 171-187页

作者： Wei Wang Yuan-dong Huang Chong Xu Xiao-yi Shao Lei Li Li-ye Feng Hui-ran Gao Yu-long cui Shuai Wu Zhi-qiang Yang Kai Ma National institute of Natural Hazards Ministry of Emergency Management of ChinaBeijing 100085China Key Laboratory of Compound and Chained Natural Hazards Dynamics Ministry of Emergency Management of Chin12eijing 100085China School of Emergency Management Science and Engineering University of Chinese Academy of SciencesBeijing 100049China School of Soil and Water Conservation Beijing Forestry UniversityBeijing 100083China School of Civil Engineering and Architecture Anhui University of Science and TechnologyHuainan 232001China No.3.Bureau of China Metallurgical geology Bureau Taiyuan 030031China

The periphery of the Qinghai-Tibet Plateau is renowned for its susceptibility to ***,the northwestern margin of this region,characterised by limited human activities and challenging transportation,remains insufficiently explored concerning landslide occurrence and *** the planning and construction of the Xinjiang-Tibet Railway,a comprehensive investigation into disastrous landslides in this area is essential for effective disaster preparedness and mitigation *** using the human-computer interaction interpretation approach,the authors established a landslide database encompassing 13.03.landslides,collectively spanning an area of 3.51.2. km^(2.(3.°N-4.°N,73.E-78°E).The database incorporates diverse topographical and environmental parameters,including regional elevation,slope angle,slope aspect,distance to faults,distance to roads,distance to rivers,annual precipitation,and *** statistical characteristics of number and area of landslides,landslide number density(LND),and landslide area percentage(LAP)are *** authors found that a predominant concentration of landslide origins within high slope angle regions,with the highest incidence observed in intervals characterised by average slopes of 2.°to 3.°,maximum slope angle above 80°,along with orientations towards the north(N),northeast(NE),and southwest(SW).Additionally,elevations above 4.5 km,distance to rivers below 1 km,rainfall between 2.-3. mm and 3.-4. mm emerge as particularly susceptible to landslide *** study area’s geological composition primarily comprises Mesozoic and Upper Paleozoic *** fault and human engineering activities have different degrees of influence on landslide ***,the significance of the landslide database,the relationship between landslide distribution and environmental factors,and the geometric and morphological characteristics of landslides are *** landslide H/L ratios in the study area are

关键词： Landslides Human-computer interaction interpretation Landslide database Spatial distribution Earthquake Rainfall Human engineering activity Qinghai-Tibet Plateau geological hazards survey engineering

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不同产地蓝铜矿矿物学及谱学特征研究

光谱学与光谱分析 2024年第5期44卷 1372-1378页

作者：徐翠香陈宇迪邹涛杨颖中国地质博物馆北京100034 北京市科学技术研究院分析测试研究所(北京市理化分析测试中心) 北京100089

蓝铜矿是含铜的碳酸盐矿物,它产于铜矿床的氧化带,是一种次生矿物,因此蓝铜矿的出现可作为寻找原生铜矿床的标志。国内学者对蓝铜矿的谱学研究比较少,且对世界不同著名产地蓝铜矿矿物学与谱学特征对比是空白区。通过扫描电镜能谱分析仪... 详细信息

蓝铜矿是含铜的碳酸盐矿物,它产于铜矿床的氧化带,是一种次生矿物,因此蓝铜矿的出现可作为寻找原生铜矿床的标志。国内学者对蓝铜矿的谱学研究比较少,且对世界不同著名产地蓝铜矿矿物学与谱学特征对比是空白区。通过扫描电镜能谱分析仪、粉晶X射线衍射仪、同步热分析仪、红外光谱仪等仪器对2.中国产地蓝铜矿矿物样品(安徽六峰山、广东阳春)与2.外国产地蓝铜矿矿物样品(老挝、澳大利亚)的成分、结构及谱学特征进行了分析与探讨。能谱元素分析结果显示4.矿物样品的主要元素为C、O、Cu三种元素。X衍射结果表明除产于安徽六峰山矿物外,其他3.产地矿物X衍射物相分析结果均为蓝铜矿Cu_(3.(OH)_(2.(CO_(3.)_(2.。产于安徽六峰山矿物除了主物相蓝铜矿的衍射峰外,在其他位置也检测出衍射峰,表明产于安徽六峰山的矿物含有第二物相孔雀石CuCO_(3.·Cu(OH)_(2.。从同步热分析仪热重曲线可以看出主要有两个失重台阶,3.0℃之前的失重可能是蓝铜矿中含有小部分的孔雀石的分解失重,而3.0~600℃的失重对应的是蓝铜矿的分解失重。从红外光谱上看主要的红外峰为蓝铜矿的特征峰,四个不同产地的红外光谱比较相似。结合蓝铜矿的外观特征,可为不同产地蓝铜矿的产地鉴定和检测提供依据。

关键词：蓝铜矿能谱分析 X衍射物相分析同步热分析红外光谱

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罗布莎铬铁矿区成矿构造条件的研究

矿床地质 1983年第1期 48-57页

作者：崔军文乔子江地质力学所

矿区位于藏南超基性岩带罗布莎超基性岩体,主要矿床成因类型有:岩浆晚期熔离矿床和正岩浆期矿床。后者未构成具工业价值铬铁矿体,前者为矿区主要矿床成因类型。本文仅探讨岩浆晚期熔离矿床的成矿构造条件。

关键词：铬铁矿床辉橄岩斜辉纯橄岩纯橄榄岩深成岩罗布莎超基性岩体罗布莎成矿构造含矿带岩相沉积相

Diode-pumped Solid-state Cr4.∶Nd∶YAG/KTP Green Laser

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chinese Journal of Lasers 2001年第5期 2-5页

作者： YU Ting cui junwen LU Yutian HU Qiquan (Advanced Laser Technique Laboratory, Shanghai {2. of Optics and Fine Mechanics,The {3. Academy of Sciences, Shanghai 2.1800, China)

A diode pumped solid state Cr 4. ∶Nd∶YAG/KTP green laser with intracavity second harmonic generation is reported. Stable quasi cw output of 1 03.W in average power, 100 kHz of repetition rate and about 2. ns of pulse width were obtained. Repetition rate and pulse width were studied experimentally and analyzed under different conditions.

关键词： diode pumped solid state Cr 4. ∶Nd∶YAG/KTP laser intracavity second harmonic generation high repetition rate

基于脆性缓冲理念的隧道抗错断方法及模型试验

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清华大学学报（自然科学版） 2024年第7期64卷 1116-1125页

作者：曹俊崔臻张翔宇张佳威中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室武汉430071 中国科学院大学北京100049

针对许多隧道面临的穿越活动断层挑战,该研究提出一种基于脆性缓冲理念的隧道抗错断方法。通过设计并实施模型试验,验证脆性缓冲结构在抗错断方面的有效性。研究结果表明:当断层发生错动时,采用脆性缓冲结构的隧道设计理念是可行的。通... 详细信息

针对许多隧道面临的穿越活动断层挑战,该研究提出一种基于脆性缓冲理念的隧道抗错断方法。通过设计并实施模型试验,验证脆性缓冲结构在抗错断方面的有效性。研究结果表明:当断层发生错动时,采用脆性缓冲结构的隧道设计理念是可行的。通过观察破坏模式发现,脆性缓冲材料的粉碎和衬砌的部分脱空作用可有效分散局部剪切破坏,显著降低断层带区域衬砌的损坏程度。在上盘区域,拱顶处的脆性缓冲结构被压碎,与此同时,拱底处脱空。下盘区域的拱顶处脱空,而拱底的脆性缓冲结构被压碎。这种变形模式有效分散了断层位置的局部剪切变形,显著减轻了衬砌的损坏。在50 mm厚缓冲结构的保护下,即使错动位移达到100 mm,相当于实际情况下的4.m位移,衬砌模型表现出的损坏较小,突显了脆性缓冲结构在保护隧道结构完整性方面的强大性能。此外,从应变监测数据分析可以看出,衬砌的应变峰值并不出现在断层破碎带内,而是迁移至离断层位置较远的区域,显著减轻了断层破碎带内的应变集中现象。该研究为跨越活动断层带的隧道设计提供了重要的理论依据和实践指导,为抗错断方案的选择提供了参考。

关键词：隧道工程活动断层模型试验脆性材料