袖阀管法灌浆施工质量控制   总被引：1，自引：0，他引：1  

张武建 《化工矿产地质》2004,26(1):51-52,58

在长沙市第一污水处理厂扩建工程截污干管地基防渗灌浆工程中,采用了袖阀管灌浆法施工工艺,根据其工艺流程,主要对成孔、套壳料配方及浇注、灌浆材料以及灌浆过程等关键工序进行质量控制,并在灌浆施工过程中对所遇到的不同特殊情况采取了不同的处理方法,其工程防渗加固质量完全满足设计要求。这也表明袖阀管灌浆法适用于粘土、粉细砂砾等松散地层中的劈裂灌浆施工。  相似文献   

遥感技术在新疆东部石英滩-裤子山地区盐湖硝酸盐资源评价中的应用   总被引：3，自引：0，他引：3  

刘国庆  熊先孝  郭洪周  刘振敏  李博昀 《化工矿产地质》2004,26(1):29-34,50

通过对新疆东部石英滩-裤子山地区盐湖遥感影像信息研究,在建立了盐湖相关信息遥感解译标志、总结了盐湖的空间分布规律的基础上,进行了野外地质调查,基本查明盐湖的成因类型、盐类沉积范围、卤水赋存状态、以及硝酸盐成矿地质规律和特征,并预测盐湖硝酸盐资源量可达181.18万t。  相似文献   

PRB技术在矿区地质填图及图件编绘中应用的几点尝试   总被引：2，自引：1，他引：1  

王生志  徐大地  荆友广  张琦 《化工矿产地质》2004,26(2):97-100,106

运用PRB数字填图技术进行矿产地质填图及图件编绘的基本做法是:用手持GPS对地质点定位,并将坐标值及相关简单属性存于其中,用接收软件将存于GPS中的数据导出,然后在比较通用的软件如Excel.surfer8、Grapher4、CAD、Mapgis等软件中进行处理,最后在Mapgis中加挂属性,进行建库分析。实践过程中尚遇一些难题,如GPS的精度问题、地形图矢量化工作量大且各自为战、地质花纹及颜色填充混乱不统一等问题,有待于今后逐步完善。  相似文献   

四川冕宁稀土矿床黑色风化物中的稀土元素赋存状态研究   总被引：2，自引：0，他引：2  

张萍  蒋馥华 《矿物岩石》1999,19(4):10-14

本文用现代的固体表面分析方法和连续选择性提取法对冕宁黑色风化物中稀土元素的赋存状态进行研究因。在可交换离子相,易还原相,水成相和矿物结晶相四种稀土存在的形式中,易还原相和水成相是自然界矿物中新的稀 存状态。特性吸附是产生这两种新相的内在原因。  相似文献   

Uranium Provinces in China   总被引：1，自引：0，他引：1  

CHEN Zhaobo  ZHAO Fengmin  XIANG Weidong  CHEN Yuehui China National Nuclear Corporation  P.O. BOX:  Beijing 《《地质学报》英文版》2000,74(3):587-594

Three uranium provinces are recognized in China, the Southeast China uranium province, the Northeast China-Inner Mongolia uranium province and the Northwest China (Xinjiang) uranium province. The latter two promise good potential for uranium resources and are major exploration target areas in recent years. There are two major types of uranium deposits: the Phanerozoic hydrothermal type (vein type) and the Meso-Cenozoic sandstone type in different proportions in the three uranium provinces. The most important reason or prerequisite for the formation of these uranium provinces is that Precambrian uranium-enriched old basement or its broken parts (median massifs) exists or once existed in these regions, and underwent strong tectonomagmatic activation during Phanerozoic time. Uranium was mobilized from the old basement and migrated upwards to the upper structural level together with the acidic magma originating from anatexis and the primary fluids, which were then mixed with meteoric water and resulted in t  相似文献   

On Biochemical Formation of Salt Deposits     

WEI Dongyan  DENG Xiaolin  LIU Zhenmin  YANG GengshengGeological Institute for Chemical Minerals  Zhuozhou  Hebei 《《地质学报》英文版》2000,74(3):613-617

A water/salt system in an evaporative environment is both a physicochemical region and a biological one. All the parameters of the system, such as the salinity, temperature and CO2 partial pressure, are affected by halo-philic bacteria. The system controls salt deposition but is modified by an accompanying ecological system; therefore it should be called a water/salt/biological system. Salt minerals result from accumulation of the remains of bacteria/algae, namely, bacteria/algae formation; whereas biological, biophysical and biochemical processes provide full evidence for organic involvement. Consequently, salt deposits should not be called purely chemical but biological/chemical ones. This new argument supplements and develops the traditional idea and helps perfect the mineralization theory of salts and even general deposits, thus giving guidance to prospecting for salt deposits.  相似文献   

Tectonics and Petroleum Potential of the East China SeaShelf Rift Basin   总被引：2，自引：0，他引：2  

LI Peilian  HOU Hongbin  MA Huifu 《《地质学报》英文版》2000,74(3):651-660

There are two Cenozoic sedimentary basins in the East China Sea. They are the East China Sea shelf basin and the Okinawa Trough basin. The former can be divided into a western and an eastern rift region. The development of the shelf basin underwent continental-margin fault depression, post-rift and then tectonic inversion stages. Available exploration results show that the distribution of source rocks is controlled by the basin architecture and its tectonic evolution. In the Xihu depression, mudstones and coals are the main source rocks. The eastern rift region has good geological conditions for the formation of large oil and gas fields.  相似文献   

Hot-Water Deposition of Pyritic Stromatolite and Its Relation to Biomineralization     

XIA Xuehui  LIU Changtao  LI ZhongmoGeological Institute for Chemical Minerals  Zhuozhou  Hebei 《《地质学报》英文版》2000,74(3):529-533

Pyritic stromatolite, a rich pyrite ore, is scattered as reef masses in sedex deposits of the Proterozoic Yanshan rift trough. The pyritic stromatolite consists of a core and alternating concentric rims of light colloidal pyrite and dark organic materials. The concentric rims are cemented together by trichomes highly similar to the trichomic microorganisms inhabiting substantively around the black chimneys on the current sea beds while the core is composed chiefly of groups of thermophilous sulphur bacteria. Biomarkers for the molecules of pyritic stromatolite include pristane, phytane, regular isoprenoids paraffin, methyl-heptadecyl, and so on. This study reveals the existence of methane-yielding bacteria in the pyritic stromatolite and reflects the evolution of thermophilous thallophyta.Long pulsation of mineralizing thermal solutions venting up along contemporaneous faults in rift troughs contributed greatly not just to the reproduction of thermophilous organisms living around the vents, but to their  相似文献   

加强管理 开拓进取 扭亏为盈 加快发展     

Fujian Chemical Geology Prospecting Institute 《化工矿产地质》2000,22(2):105-110

福建化工地质勘查院在 1995～ 1997年间因管理不善 ,亏损严重的被动局面下 ,确定了调整产业结构 ,大力开拓市场 ,走地质勘查、工程勘查、建筑施工三业并举之路的发展方向。通过人员重组 ,健全和完善各项规章制度 ,很抓财务的清理和整顿 ,加强各项物资设备及安全、质量管理等管理和整顿措施的实施 ,并积极开拓市场 ,节支和开源双管齐下 ,同时加强思想政治工作 ,促进了改革的深化和经济的发展 ,取得了显著的效益。工作中体会到 :加强领导 ,转变观念是各项工作上台阶的重要保证 ;深化改革 ,才能促进经济的发展 ;强化内部管理 ,是提高效益 ,扭亏为盈的关键。  相似文献   

辽东硼矿的成矿机制及成矿模式   总被引：7，自引：0，他引：7  

王翠芝  肖荣阁  刘敬党 《地球科学》2008,33(6):813-824

为了解辽东硼矿的成矿机制及建立成矿模式, 分析了含硼岩系、镁质容矿岩石、区域变质作用及混合岩化作用、构造等四大控矿因素, 发现含硼岩系具富硼特征, 容矿岩石具富镁特点并可成为硼质的沉淀剂, 含硼岩系中硼在区域变质和混合岩化过程中得到进一步活化形成含硼热液, 含硼热液在有利的构造空间交代镁质岩石即可形成镁硼酸盐型硼矿.含硼岩系、镁质容矿岩石是硼矿形成的物质基础, 区域变质及混合岩化作用、构造活动是硼矿形成的必要条件.辽东硼矿成矿模式为原始火山-沉积初始富集和部分熔融含硼热液交代镁质岩石.   相似文献