检索结果-南通市图书馆

Evidence for transforming mineralization of Baiguoyuan silver-vanadium deposit hosted in black shale in Hubei,China

在线全文

学校读者我要写书评

暂无评论

Chinese Science Bulletin 1999年第3期44卷 263-267页

作者： hanping zhuang Jialan Lu Jiamo Fu Jinzhong Liu Chigang Ren Degang Zou Chinese Acad Sci Guangzhou Inst Geochem Canton 510640 Peoples R China Fudan Univ Dept Phys 2 Shanghai 200433 Peoples R China

Baiguoyuan silver-vanadium deposit is generally thought to be of sedimentary-diagenetic origin. Based on the characteristics of barites, it is suggested that hydrothermal transformation has been involved in mineralization. The barites in black shale can be grouped into irregular ones which were formed during early diagenesis and tabular ones which were formed during late diagenesis. The tabular barites are replaced by pyrite and have formed a regular girdle around them. PIXE analysis states that Ag is greatly concentrated in pyrite replacement girdle. The girdle is the product of hydrothermal transformation. The transformation is one of the main mineralization stages of Baiguoyuan deposit.

关键词： Baiguoyuan silver-vanadium deposit barite transformation.

Organic/ Inorganic Occurrence of Metallic Elements of the Black Shale-Hosted Baiguoyuan Silver-Vanadium Deposit in Xingshan, Hubei

在线全文

学校读者我要写书评

暂无评论

Acta Geologica Sinica(English Edition) 1998年第3期72卷 299-307页

作者： zhuang hanping LU Jialan FU Jiamo LIU Jinzhong REN Chigang ZOU Degang TIAN Weizhi Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou 510640 2nd Department of Physics Fudan University Shanghai 200433 Chinese Academy of Atomic Science Beijing 102413

: By means of kerogen purification, the proton induced X-ray emission (PIXE) and instrumental neutron activation analysis (INAA), the authors have studied the organic/inorganic occurrence modes of the metallic elements of the Baiguoyuan silver-vanadium deposit hosted in black shale in Hubei Province, China. The result shows that Au, Hg and Ta have a strong tendency to occur organically, with more than 70% of these elements being associated organically. Se, Ga, Ag and Hf are partly associated with organic matter, with more than 20% of them occurring organically. Compared with the above elements, Zn, Cu, As and Sb are weakly associated organically, and tend to be enriched in kerogen. However, Mn, Th, U, V, Co, Cr, AI, Fe and Sc usually occur inorganically. Of the rare earth elements (REE), La, Ce, Tb, Dy, Yb and Lu have stronger ability to be associated with organic matter than Sm and Eu.

关键词： Baiguoyuan black shale-hosted silver-vanadium deposit organic matter metallic elements occurrence modes

Pial iontophoresis of ferric chloride versus cortical ferric chloride injection in establishing iron-induced posttraumatic epilepsy animal models

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2006年第4期1卷 351-354页

作者： Jinlan Jin hanping zhuang Shaoming Liu Junqiang Si Ying Chen Jiamei Yao Ward 25 Department of Medical Treatment for Cadre Xiangya Hospital Central South University Changsha 410008 Hunan Province China Department of Neurosurgery the Urumqi General Hospital Lanzhou Military Area Command of Chinese PLA Urumqi 830000 Xinjiang Uygur Autonomous Region China Laboratory of Xinjiang Endemic and Ethnic Disease Shihezi 832000 Xinjiang Uygur Autonomous Region China

BACKGROUND： In order to study the pathogenesis of iron-induced posttraumatic epilepsy （PTE）, foreign scholars have established several kinds of PTE animal models, among which, the iron- induced PTE animal models proposed by Willmore is the most famous. The iron-induced PTE animal models can be established by two methods： one is cortical ferric chloride injection （CFCI） and the other one is pial iontophoresis of ferric chloride （PIFC）. Because Willmore did not give out the elaboration of the behaviors and electroencephalograms （EEGs） of the iron induced PTE animal models established by these two methods, so we have known little about these animal models. OBJECTIVE： To observe the behaviors and EEGs of the iron-induced PTE animal models established by PIFC and CFCI, in order to compare the differences and the study value of these two methods. DESIGN： Qualitative controlled observation tria SETTING： Department of Neurosurgery, Urumqi General Hospital, Lanzhou Military Area Command of Chinese PLA. MATERIALS： Forty healthy adult male SD rats, weighing 200 to 250 g, were involved in this experiment. Reagents and instruments： Ferric chloride （FeCl3·6H2O, Sigma USA）, rat stereotaxic apparatus （ASI company, USA）, the wireless blue tooth electroencephlograms recording system （Nuocheng electric ***, Shanghai）, a set of air turbine dental drill unit, dental base acrylic resin powder, microinjector （50 μL）, amperemeter （1 mA）, a pair of batteries, electric resistance （200 kΩ） , variable resistance （100 kΩ）, tubule with endo-meridians of 2 mm （used as import tube）, several silver wire segments and several acupuncture needles were employed in this study. METHODS： This study was carried out in the Experimental Animal Center of the Urumqi General Hospital, Lanzhou Military Area Command of Chinese PLA between November 2004 and April 2005. Establishing the PET animal models by CFCI method： Twenty SD rats were taken, intraperitoneally anesthetized with 50 mg/kg barbanylum

关键词： PTE Pial iontophoresis of ferric chloride versus cortical ferric chloride injection in establishing iron-induced posttraumatic epilepsy animal models

Lincang Superlarge Germanium Deposit in Yunnan Province,China: Sedimentation,Diagenesis,Hydrothermal Process and Mineralization

在线全文

学校读者我要写书评

暂无评论

Journal of Earth Science 1998年第2期17卷 37-44页

作者： zhuang hanping Lu Jialan Fu Jiamo Liu Jinzhong Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640

The mineralization is related closely to sedimentation, diagenesis and hydrothermal processes. In this paper, investigations are carried out on coal occurrence, maceral composition, inorganic minerals, trace elements and huminite reflectance. It is concluded that the source of Lincang superlarge deposit is mainly the muscovite granite in the west edge of the basin. During sedimentation, Ge (germanium) was leached out and entered the basin. Ge was adsorbed by lower organism and humic substances in water. Lincang lignite underwent three thermal processes: peatification, early diagenesis and hydrothermal transformation. During peatification, Ge was adsorbed or complexed by humic colloids. During early diagenesis, the Ge associated with humic acids was hard to mobilize or transport. Most of Ge entered the structure of huminite while a small amount of Ge was associated with residual humic acids as complex or humate. During hydrothermal transformation, the heated natural water or deep fluid from basement encountered the coal layer within tectonic weak zone. SO 2- 4 was reduced by coal organic matter. Pyrite and calcite formed. Hydrothermal process did not contribute significantly to mineralization.

关键词： Lincang superlarge germanium deposit sedimentation diagenesis hydrothermal process mineralization.

Interactions of Copper, Evaporite, and Organic Matter and Genesis of Sandstone-Hosted Copper Deposits in the Chuxiong Basin, Yunnan Province

在线全文

学校读者我要写书评

暂无评论

Acta Geologica Sinica(English Edition) 1996年第4期70卷 407-419页

作者： zhuang hanping, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, GuizhouRan Chongying, He Mingqin, Geology Department, Kunming Institute of Technology, Kunming, Yunnanand Lu Jialan Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangdong

Studies on organic geochemistry indicate that the origin, type and maturity of organic matter are different among coal-bearing, copper-bearing and evaporite formations in the Mesozoic continental Chuxiong Basin, Yunnan, China. A mechanism has been proposed that (1) during the diagenetic mineralization stage the short-chain organic acids dervied from kerogen played an important role in remobilizing copper from source beds, while oils acted as important carrier of copper, and that (2) during the transformation or remolding mineralization stage, meteoric water leached the evaporite layers and formed downward-percolating oxidizing SO42-rich fluids; meanwhile, the copper-bearing fluids migrating upwards along growth faults from the basement was contaminated by the coal-bearing series on the way and formed reducing organic-rich fluids; oxidation-reduction occurred and sulfides formed when the two kinds of fluids met within sandstones.

关键词： sandstone-hosted copper deposit organic matter evaporite organic geochemistry Chuxiong basin

黔西南卡林型金矿床中固体有机物质的有机岩石学研究

在线全文

学校读者我要写书评

暂无评论

地质科学 2000年第1期35卷 83-90,T004页

作者：庄汉平卢家烂傅家谟刘德汉中国科学院广州地球化学研究所广州510640

固体有机物质保留了金属矿床成矿过程的重要信息。本文以黔西南烂泥沟和戈塘两个典型金矿床为例，系统研究了其中的固体有机物质的有机岩石学特征，并探讨了固体有机质与金矿化的关系。烂泥沟金矿固体有机质由原生煤系有机质和异源焦沥... 详细信息

固体有机物质保留了金属矿床成矿过程的重要信息。本文以黔西南烂泥沟和戈塘两个典型金矿床为例，系统研究了其中的固体有机物质的有机岩石学特征，并探讨了固体有机质与金矿化的关系。烂泥沟金矿固体有机质由原生煤系有机质和异源焦沥青组成。煤系有机质为原生有机质，与成岩黄铁矿关系密切，没有直接参与热液成矿作用。焦沥青沿石英脉壁粘附或在细脉和纹层中呈带状分布，是热液成矿期原油热液蚀变的产物，原油搬运Ａｕ，遭受热液蚀变并参与热化学还原，导致Ａｕ的释放和沉淀。戈塘金矿床中有机质主要是煤系有机质碎屑，与上覆的含煤层有成因联系。这些有机质在热液过程中遭受热液蚀变，还原硫酸盐，为硫化物的沉淀提供还原硫。

关键词：有机岩石学固体有机物质金矿床黔西南

使用C18固相萃取膜-色质联用定量分析饮用水中痕量多环芳烃的初步研究

在线全文

学校读者我要写书评

暂无评论

分析化学 1999年第2期27卷 140-144页

作者：潘海祥麦碧娴庄汉平林峥闵育顺盛国英傅家谟中国科学院广州地球化学研究所有机地球化学国家重点实验室广州510640 中国科学院广州地球化学研究所有机地球化学国家重点实验室

参照美国EPA525.1方法,C-固相萃取膜萃取饮用水中的有机物,利用GC/MS法鉴定多环芳烃(PAHs),使用16种多环芳烃混合标准样绘制标准曲线,以内标法对PAHs进行定量分析.采用本方法研究某水厂经过深度处理后的出厂水中的7种多环芳烃的含量,PAH... 详细信息

参照美国EPA525.1方法,C-固相萃取膜萃取饮用水中的有机物,利用GC/MS法鉴定多环芳烃(PAHs),使用16种多环芳烃混合标准样绘制标准曲线,以内标法对PAHs进行定量分析.采用本方法研究某水厂经过深度处理后的出厂水中的7种多环芳烃的含量,PAHs的平均回收率为94.0%～97.7%.检测限为0.001μg/L.

关键词：饮用水多环芳烃定量分析

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

系统性红斑狼疮的治疗进展

临床内科杂志 2008年第12期25卷 797-800页

作者：李通左晓霞庄汉屏中南大学湘雅医院风湿免疫科长沙410008

系统性红斑狼疮(SLE)是一种典型的自身免疫性疾病,主要影响育龄期妇女,其患病率约为40～200/10万人.SLE的临床疾病的表现多种多样,可出现从发热、关节痛等非特异性症状到肾功能衰竭或中枢神经系统损伤等差别迥异的临床症状.

关键词：系统性红斑狼疮/治疗

南宁市HIV感染妇女心理健康状况及其影响因素探讨

在线全文

学校读者我要写书评

暂无评论

医学动物防制 2024年第4期40卷 336-340页

作者：胡慧黄嘉月文乐敏陈汉平覃燕秦燕周玥希曹军南宁市第四人民医院预防保健科广西壮族自治区南宁530000 南宁市第四人民医院科教科

目的了解广西壮族自治区南宁市人类免疫缺陷病毒(Human immunodeficiency virus,HIV)感染妇女焦虑和抑郁倾向的发生状况,并探讨HIV感染妇女焦虑、抑郁的影响因素。方法采用方便抽样方法,抽取2018年3月至2021年4月南宁市某传染病专科医... 详细信息

目的了解广西壮族自治区南宁市人类免疫缺陷病毒(Human immunodeficiency virus,HIV)感染妇女焦虑和抑郁倾向的发生状况,并探讨HIV感染妇女焦虑、抑郁的影响因素。方法采用方便抽样方法,抽取2018年3月至2021年4月南宁市某传染病专科医院进行HIV母婴阻断的对359名HIV感染妇女进行问卷调查。结果共调查359名HIV感染妇女,焦虑自评量表(self-rating anxiety scale,SAS)标准分为(44.32±8.58)分,抑郁自评量表(self-rating depression scale,SDS)标准分为(48.64±11.06)分,焦虑情绪者检出率为21.7%,抑郁情绪者检出率为49.3%。多因素分析结果显示,良好的社会支持、剖宫产、文化程度为大专及以上是焦虑倾向的保护因素,文化程度为初中、怀孕次数≥4次是焦虑倾向的危险因素;良好的社会支持、文化程度为大专及以上是抑郁倾向的保护因素,怀孕次数≥4次、配偶感染HIV情况不详是抑郁倾向的危险因素。结论南宁市HIV感染妇女心理健康状况较差,艾滋病母婴阻断随访中,应将HIV感染妇女作为健康评估的重点人群,关注其焦虑、抑郁等心理健康问题,并采取针对性干预措施,以提高该类特殊人群的心理健康水平。

关键词： HIV感染艾滋病妇女心理焦虑抑郁影响因素