ANCINT GEOTHERMAL ACTIVITY AND ITS GEOLOGICAL IMPLICATIONS IN SHUIKOUSHAN ORE AREA,HUNAN PROVINCE CHINA

ＡＮＣＩＮＴＧＥＯＴＨＥＲＭＡＬＡＣＴＩＶＩＴＹＡＮＤＩＴＳＧＥＯＬＯＧＩＣＬＩＭＰＬＩＣＡＴＩＯＮＳＩＮＳＨＵＩＫＯＵＳＨＡＮＯＲＥＡＲＥＡ，ＨＵＮＡＮＰＲＯＶＩＮＣＥＣＨＩＮＡTXＡＮＣＩＮＴＧＥＯＴＨＥＲＭＡＬＡＣＴＩＶＩＴＹＡＮＤＩＴＳＧＥＯＬ...     

PALEOKARSTIFICATION AND RESERVOIR CHARACTERISTICS OF THE LOWER ORDOVICIAN DOLOMITE IN THE NORTH OF TARIM BASIN, XINGJIANG

ＰＡＬＥＯＫＡＲＳＴＩＦＩＣＡＴＩＯＮＡＮＤＲＥＳＥＲＶＯＩＲＣＨＡＲＡＣＴＥＲＩＳＴＩＣＳＯＦＴＨＥＬＯＷＥＲＯＲＤＯＶＩＣＩＡＮＤＯＬＯＭＩＴＥＩＮＴＨＥＮＯＲＴＨＯＦＴＡＲＩＭＢＡＳＩＮ,ＸＩＮＧＪＩＡＮＧＣｈｅｎＨｏｎｇｄｅ,ＺｈａｎｇＪｉｎ...     

TECTONIC EVOLUTION AND INVERSION OF TURPAN-HAMI BASIN,NORTHWESTERN CHINA

ＴＥＣＴＯＮＩＣＥＶＯＬＵＴＩＯＮＡＮＤＩＮＶＥＲＳＩＯＮＯＦＴＵＲＰＡＮＨＡＭＩＢＡＳＩＮ，ＮＯＲＴＨＷＥＳＴＥＲＮＣＨＩＮＡＣａｏＤａｉｙｏｎｇ，ＺｈａｎｇＰｅｎｇｆｅｉ，ＪｉｎＫｕｉｌｉａｎｄＱｉａｎＧｕａｎｇｍｏＢｅｉｊｉｎｇＧｒａｄｕａｔ...     

了解作者宏观全貌——《地学前缘》创刊三周年作者一览表

了解作者宏观全貌——《地学前缘》创刊三周年作者一览表（ＴＯＫＮＯＷＴＨＥＡＵＴＨＯＲＳ，ＯＶＥＲＶＩＥＷＯＦＴＨＥＩＲＲＯＬＬＩＮＴＲＩＥＮＮＩＡＬＣＥＬＥＢＲＡＴＩＯＮＯＦ“ＥＡＲＴＨＳＣＩＥＮＣＥＦＲＯＮＴＩＥＲＳ”）本刊编辑部（中国地质大学，北...     

株洲地洼沉积型片状高岭石矿的发现

株洲地洼沉积型片状高岭石矿的发现ＴＨＥＤＩＳＣＯＶＥＲＹＯＦＡＳＥＤＩＭＥＮＴＡＲＹＴＹＰＥＦＬＡＫＹＫＡＯＬＩＮＩＴＥＤＥＰＯＳＩＴＩＮＤＩＷＡＳＴＲＵＣＴＵＲＡＬＬＡＹＥＲ，ＺＨＵＺＨＯＵＣＯＵＮＴＹ，ＨＵＮＡＮ￥／／魏洲龄，蔡有兴，汪灵，张春光...     

关于地勘工作发展战略及今年任务的思考

关于地勘工作发展战略及今年任务的思考①ＰＯＮＤＥＲＩＮＧＡＢＯＵＴＴＨＥＤＥＶＥＬＯＰＩＮＧＳＴＲＡＴＥＧＩＥＳＯＦＥＸＰＬＯＲＡＴＩＯＮＡＮＤＴＨＥＴＡＳＫＳＩＮＴＨＩＳＹＥＡＲ张攀华ＺｈａｎｇＰａｎｈｕａ湖南省地质矿产厅长沙４１００１１Ｈｕｎａｎ...     

PROVENANCE ANALYSES OF LATE PALEOZOIC CLASTICS IN THE KAMUSTE AREA, THE JUAGGUR BASIN, XINJIANG

ＰＲＯＶＥＮＡＮＣＥＡＮＡＬＹＳＥＳＯＦＬＡＴＥＰＡＬＥＯＺＯＩＣＣＬＡＳＴＩＣＳＩＮＴＨＥＫＡＭＵＳＴＥＡＲＥＡ,ＴＨＥＪＵＡＧＧＵＲＢＡＳＩＮ,ＸＩＮＪＩＡＮＧＺｈａｎｇＸｉａｏｈｕｉＩｎｓｔｉｔｕｔｅｏｆＧｅｏｌｏｇｙ,ＣｈｉｎｅｓｅＡｃａｄｅ...     

地下热水调查中物探、化探方法及合理工作程序的研究

地下热水调查中物探、化探方法及合理工作程序的研究ＳＴＵＤＩＥＳＯＮＧＥＯＰＨＹＳＩＣＡＬＡＮＤＣＥＯＣＨＥＭＩＣＡＬＭＥＴＨＯＤＳＡＮＤＲＡＴＩＯＮＡＬＷＯＲＫＩＮＧＰＲＯＣＥＤＵＲＥＩＮＵＮＤＥＲＱＲＯＵＮＤＨＯＴＷＡＴＥＲＳＵＲＶＥＹ本研究系部重...     

COVERED KARST COLLAPSE IN TONGLING AREA, ANHUI, CHINA

ＣＯＶＥＲＥＤＫＡＲＳＴＣＯＬＬＡＰＳＥＩＮＴＯＮＧＬＩＮＧＡＲＥＡ,ＡＮＨＵＩ,ＣＨＩＮＡＷａｎｇＧｕｏｑｉａｎｇＤｅｐａｒｔｍｅｎｔｏｆＥｎｖｉｒｏｎｍｅｎｔａｎｄＲｅｓｏｕｒｃｅ,ＨｅｆｅｉＵｎｉｖｅｒｓｉｔｙｏｆＩｎｄｓｔｒｙ,Ｈｅｆｅｉ２３...     

ELECTRIC CONDUCTIVITY UNDER HIGH PRESSURE AND HIGH TEMPERATURE FOR THE CRUST-MANTLE ROCKS IN QINLING-DABIE MOUNTAIN AND THE KNOWLEDGE ABOUT THE ELECTRIC STRUCTURE MODEL OF MOUNTAIN BUILDING BELT

ＥＬＥＣＴＲＩＣＣＯＮＤＵＣＴＩＶＩＴＹＵＮＤＥＲＨＩＧＨＰＲＥＳＳＵＲＥＡＮＤＨＩＧＨＴＥＭＰＥＲＡＴＵＲＥＦＯＲＴＨＥＣＲＵＳＴＭＡＮＴＬＥＲＯＣＫＳＩＮＱＩＮＬＩＮＧＤＡＢＩＥＭＯＵＮＴＡＩＮＡＮＤＴＨＥＫＮＯＷＬＥＤＧＥＡＢＯＵＴＴＨＥＥ...     

Study on the Dissolution of Dusts in Glutamic Acid

This article describes the characteristics of natural dusts, artificial dusts and industrial dusts, such as mineral phases, chemical components, morphological observation and size. Quartz and calcite are the main phases of natural dusts and industrial dusts with high SiO2, CaO and low K2O, Na2O on the chemical composition. Natural dusts are mainly irregular shaped and some particle aggregation made of small dusts on the surface of large dust. Industrial dusts are globular and blob-like, but artificial dusts are columnar and fibrous. The fine particles are mainly in the range of 0.3-5 μm,of which the dusts of less than 5 μm are over 99%.The dissolution and electrochemical action of dusts in glutamic acid liquor at the simulated human body temperature (37 ℃) in 32 hours were investigated. The changes of pH values and electric conductivity of those dusts were similar, increased slowly in first 8 hours, and then the pH values increased rapidly. The total amount of dissolved ions of K, Ca, Na, Mg was 35.4-429 mg/L, particularly Ca was maximal of 20-334 mg/L. The total amount of dissolved ions of Fe, Zn, Mn, Pb, Ba was 0.18-5.59 ppm and the Al, Si was 3.0-21.7 mg/L. Each element dissolved rapidly relatively in first 16 hours. The relative solubility order of dusts in glutamic acid are: wollastonite > serpentine > sepiolite, the cement plant industrial dusts > power plant industrial dusts, and natural dusts have similar solubility. The wollastonite and power plant industrial dusts have highest solubility, which have high content of CaO; this shows there are a poorer corrosion-resisting ability and lower bio-resistibility. Sepiolite and cement plant industrial dusts have lowest solubility, which have high content of SiO2; this shows there are a higher corrosion-resisting ability and stronger bio-resistibility.     

Effect of Mineral Dusts on the Growth of Silicate Bacteria S35

In order to compare the chemical compositions and physical properities of dusts on silicate bacteria S35, the chemical compositions of six kinds of mineral dusts have been analyzed and the changes of pH value, glucose （GLU）, electrolyte and Mn, Si, Fe before and after the dusts reacted with silicate bacteria S35 have been measured. The SEM analysis has been used to study the bacterial form and interface action status in the course of reaction between dusts and bacteria. The results show that these mineral dusts have different effects on experiment bacteria. Therefore, it is concluded that the effect of mineral dusts on silicate bacteria has correlation with the chemical compositions and physical properities of dusts.     

矿物粉尘对人体血清物质的吸附行为研究

通过测定吸附后人体血清的成分,并利用红外光谱研究了几种矿物粉尘对血清中物质的吸附作用,结果表明,矿物粉尘对血清中物质的吸附具有选择性,主要是吸附了血清中的蛋白质和脂类等生物大分子。不同矿物吸附生物大分子的选择性不同,这主要与矿物的结构和表面海性等因素有关。红外光谱研究表明,吸附机理主要是物理吸附,可能也存在化学吸附。另一方面,矿物粉尘在血清中发生了一定程度的阳离子交换和溶解作用。     

纤维矿物粉尘在Gamble溶液中的溶解行为

本文用人工配制的Ｇａｍｂｌｅ溶液和三个酸度系列,研究了６对粉尘在模拟人体环境下９６ｄ的溶液特征和生物持久性。结果表明：不同粉尘中铁元素的溶解速率多数出现两个峰值区,三八面体结构型粉尘中铁与镁元素溶解同步。高镁矿物粉尘溶解速率在第一阶段多出现峰值;沸石、硅灰石的钙溶解速率比较稳定,硅灰石在低ｐＨ值区表现出前高后低的特点;Ｓｉ在Ｇａｍｂｌｅ溶液中的溶解峰点在ｐＨ５体系中出现在４８ｄ以前,在ｐＨ７体系中     

纤粒矿物粉尘体外细胞毒性研究

采用体外细胞培养技术,观察兔肺泡巨噬细胞死亡率,用丙二醛（ＭＤＡ）的含量变化、乳酸脱氢酶（ＬＤＨ）及超氧化物歧化酶（ＳＯＤ）的活性变化来评价来自１２个矿６床的６种矿物的１２种结晶习性的矿物粉尘的细胞毒性,探讨其使巨噬细胞受损的机制。结果显示：沸石、硅灰石无细胞毒性,而其他的纤维状及片粒状矿物粉尘则表现出不同程度的细胞毒性,说明矿物粉尘的细胞毒性与矿物粉尘的形态有一定关系,但主要由矿物粉尘的特性所决     

矿物尘粒与微生物作用研究进展

矿物微（ 尘） 粒与细菌微生物的生物活性和毒性效应研究是国外刚开展的新方向。本文结合国外此类研究的最新进展,以及国内菌／ 尘研究的现状,强调微生物与矿物界面的作用与依存关系。指出目前在居室和大气环境、洋底环境和极地环境、人体环境下的菌／ 尘作用产物和机制研究的不足,以及应开展研究的主要方面,预测了近期矿物与微生物作用研究的趋势。     

An In Vitro Investigation of Pulmonary Alveolar Macrophage Cytotoxicity Introduced by Fibrous and Grainy Mineral Dusts

In order to study the damage mechanism of mineral dusts on the pulmonary alveolar macrophage （AM）, the changes in their death ratio, malandialdthyde （MDA） content and activities of lactate dehydrogenase （LDH） and superoxide dismutase （SOD） were measured, and the technique of cell culture in vitro was used to investigate the cytotoxicity of six mineral dusts （twelve crystal habits） from twelve mineral deposits. The results show that woUastonite and clinoptilolite have no AM cytotoxicity, while other fibrous and grainy mineral dusts damage pulmonary AM in various degrees. The cytotoxicity of fibrous mineral dusts was greater than that of the grainy ones, and the cytotoxicity of dusts was positively correlated with the active OH- content in dusts, but not necessarily so with its SiO2 content. The high pH values produced by dust was unfavorable for the survival of cells and the dusts with low bio-resistance were safe for cells. The content of variable valence elements in dusts might influence their cytotoxicity and the surface charge of dusts was not a stable factor for their toxicity. It is demonstrated that the shape of mineral dusts was one of the factors affecting cytotoxicity, and that the cytotoxicity of mineral dusts depends mainly on their properties.     

The Study on Genotoxicity of PM_(2.5) Mineral Dusts to A_(549) Cells

By detecting the influence of six main ingredients of PM2.5 mineral dusts on the A549 cell morphology, proliferation inhibition rate, micronuclei and DNA damage, to explore the genotoxicity of PM2.5 mineral dusts. (1) After exposure to six kinds of dusts of 200 μg/mL concentration for 24 hours, the morphology of A549 cells were observed using Wright-Giemsa staining. (2) After exposure to different concentrations of mineral dusts for 24 hours, the proliferation inhibition rate of A549 cells was detected by MTT assay. (3) Cells were exposed to PM2.5 mineral dusts at a concentration of 200 μg/mL for 24 h. After Wright-Giemsa staining, the rates of micronucleus cells were counted under oil microscope. (4) Observe Comet phenomenon by SCGE electrophoresis, the degree of DNA damage was observed by OTM. (1) Compared to the control group, membrane destruction, nuclear pyknosis and mineral surface adhesion were mainly seen in the Sericite group and Albite group. In the Quartz group and Montmorillonite group, enlarged cell gaps, loosely arranged cells, absorption of a large number of minerals on the cell surface, and cell pyknosis were observed. (2) The proliferation inhibition rate of the six kinds of dusts to A549 cells were (from large to small): KWC-M>Nano-SiO2>KWC-S>KWC-Q>KWC-A>KWC-C.The dust concentration was positively related to the inhibition of cell proliferation rate. (3) With the dusts concentration increased, the incidence of micronuclei gradually increased. The rate was positively correlated to exposure concentration. (4) The six mineral dusts can damage DNA of the A549 cells by dose-response relationship.The higher concentration of the mineral dusts, the more obvious of the DNA damagenation. There’s statistically significant compared with the control group. The six main ingredients of the PM2.5 mineral dusts can change A549 cell morphology from varying degrees, improve proliferation inhibition rate of the cells, increase the number of micronuclei cells, damage DNA.Then we come to the conclusion that PM2.5 mineral dusts can change the genotoxicity of the cells.     

Euro-Standards of Steel Furnace Dusts

For pollution control in the Iron and Steel industry, two steel furnace dusts have been standardized in the framework of the European Coal and Steel Community (ECSC). The origin of these dust samples are:
876-1: Electric furnace
877-1: Converter LD     

矿物纤维粉尘在酸中的稳定性与化学活性研究

通过对一些矿物纤维粉尘耐酸蚀性及其酸蚀残余物化学活性的测试分析和对矿物纤维粉尘的酸蚀历程尤其在酸蚀过程中其表面活性基团的变化及影响耐酸蚀性及其化学活性的诸多因素的较深入的探讨,并结合作者以前和前人的研究成果,探讨了矿物纤维粉尘耐酸蚀性强弱及酸蚀过程澡表面活性基团变化与生物活性大小变化的关系。结果表明,矿物纤维粉尘的酸蚀持久性与其晶体结构、结晶度、晶格缺陷多少有关,也与其表面官能团种类、位置及裸露程