关于地质勘探阶段最低工业品位的应用问题

众所周知,矿石工业指标是圈定矿体、计算储量的依据,矿床工业评价的标准,也是矿山生产中确定可采范围和指导开采工作的依据.无疑,如果指标不合理,势必影响矿床工业评价、矿山建设和生产;纵然合理,倘若应用不当,矿体圈定不合理,也同样影响矿床工业评价、矿产资源的合理开发和利用.因此,合理确定和正确应用工业指标,是正确评价矿床工业价值与合理开发     

云南元江金矿矿床模型及矿产经济

随着湿法冶金技术的发展，过去圈定氧化矿的工业指标在当前技术经济 条件下过高，已将大量矿石划为废石，既浪费了资源,又污染了环境。通过建立矿床模型，优化工业指标，重新圈定矿体和计算储量，增加金储量10t，为提高矿山生产的经济效益，充分合理利用矿产资源提供了科学依据。     

基于OpenGL的可视化矿产资源经济评价系统开发

可视化矿产资源经济评价是矿山工业的重要项目之一,它的开发是矿山生产中急需解决的问题.本文给出了利用OpenGL构建可视化矿产资源经济评价系统的功能模块组成及设计思想.该系统利用Access数据库管理系统管理有关数据,利用VB和OpenGL绘制勘探线剖面图和三维矿体图,并提出了建立矿体三维模型的基于领域知识的多轮廓线重构算法.该系统可以方便地根据指定的参数实现矿产储量计算,并对矿床进行技术经济评价,给矿山生产及投资者提供一种科学的规划依据和手段.     

矿床工业指标研究

矿床工业指标是划定矿床储量的基础和必备条件,是衡量矿产资源是否合理利用的依据,是矿产资源勘查、开发过程中资源效益与经济效益相协调的结果。取消行政审批后,国家对矿床工业指标的管理出现了缺位,目前行业中对此争议较多。本文在叙述工业指标管理演变过程及分析问题的基础上,通过调查研究,提出了一些完善矿床工业指标制定与管理体制机制方面的想法。     

鄂东南矿山环境评价指标体系

在对鄂东南大型矿业基地的矿产资源开发现状、社会经济效益、矿业经济活动对生态环境影响及其存在的主要环境地质问题进行初步调查分析的基础上,确定了鄂东南矿山地质环境评价指标,以系统论及可持续发展理论建立了适合该区的矿山环境评价指标体系及具体的指标参数.     

矿床最佳工业指标的探讨

工业指标是矿床勘探、开发的依据,是矿床经济评价、矿山生产调节和取得最好经济效益的基本因素。因此,在地质勘探、矿山开发的各个阶段,最需选择最佳工业指标,以保证资源的合理开发利用。笔者通过湘西某矿山的各项技术经济指标的实施情况,按收支平衡法计算了金、锑、钨的最低工业品位,不但扩大了矿山保有储量,而且找出了生产管理上的弊病,从而保证了矿山最好的经济效益。     

会泽铅锌矿麒麟厂矿段三维矿体模型及经济评价

<正>云南会泽铅锌矿开采历史悠久,是我国著名的典型铅锌矿床之一,在我国和云南省有色金属工业发展中处于举足轻重的地位。但是就当前矿山情况来讲,矿山的发展出现了问题,如矿产资源枯竭、劳动生产率低、资源开采不合理等。所以矿山企业要重新调整企业的发展战略,这就要求矿山企业能够很清楚的了解矿床的内部结构     

关于铋矿床工业指标的讨论

根据目前铋矿床的勘查和开发现状,就铋矿工业指标的定位问题、铋矿工业指标实际应用概况、制定合理的铋矿工业指标在地质找矿中的意义等方面进行了讨论,认为目前执行的《矿产工业要求参考手册》(修订版,1987)对铋矿床的工业指标定位过高,不利于资源的充分利用。考虑到当前国内外铋矿资源的现状、铋矿床地质勘探和铋矿山生产实践,提出了评价铋矿床的建议工业指标:Bi边界品位(0.05～0.10)×10-2,最低工业品位(0.10～0.20)×10-2,矿床平均品位(0.30～0.40)×10-2,矿床综合利用品位(0.045～0.050)×10-2。     

我国矿山地质学的现状与展望

矿山地质学是地质科学中的重要分支之一。概括地说,矿山地质学主要是研究矿床开发过程中的地质及其相关的矿产资源经济问题的理论和方法。它的诞生与发展都是和近代采掘工业的发展分不开的。作为地质科学与采矿科学之间的边缘学科,它的主要任务     

矿山企业要走科学开发的道路

矿产资源是矿山建设和生产的物质基础.提高矿石回采率,降低贫化率;严格遵守开采程序,坚持三级矿量均衡发展;贯彻“大小、贫富、厚薄、难易”兼采原则;切实做好矿床伴生有益组分的综合回收,严防     

Définition d'une limite multicritère ; stratigraphie du passage Campanien–Maastrichtien du site géologique de Tercis (Landes,SW France)Definition of a multi-criteria boundary; stratigraphy of the Campanian–Maastrichtian interval of the geological site at Tercis (Landes,SW France)

Lithostratigraphy, physicochemical stratigraphy, biostratigraphy, and geochronology of the 77–70 Ma old series bracketing the Campanian–Maastrichtian boundary have been investigated by 70 experts. For the first time, direct relationships between macro- and microfossils have been established, as well as direct and indirect relationships between chemo-physical and biostratigraphical tools. A combination of criteria for selecting the boundary level, duration estimates, uncertainties on durations and on the location of biohorizons have been considered; new chronostratigraphic units are proposed. The geological site at Tercis is accepted by the Commission on Stratigraphy as the international reference for the stratigraphy of the studied interval. To cite this article: G.S. Odin, C. R. Geoscience 334 (2002) 409–414.     

Late Wuchiapingian (Late Dzhulfian,early Late Permian) limestone olistolites within the Tertiary flysch of Glypia Unit (Mount Parnon,central–eastern Peloponnesus,Greece)

Some olistolites reworked in a Tertiary flysch of Mount Parnon (Peloponnesus, Greece) exhibit a Late Permian assemblage, dominated by Paradunbarula (Shindella) shindensis, Hemigordiopsis cf. luquensis and Colaniella aff. minima. This association corresponds to the Late Wuchiapingian (=Late Dzhulfian), a substage whose algae and foraminifera are generally little known. Contemporaneous limestones crop out in the middle part of the Episkopi Formation in Hydra, but they are rather commonly reworked in Mesozoic and Cainozoic sequences. The palaeobiogeographical affinities shared by the foraminiferal markers of Greece, southeastern Pamir, and southern China, are very strong (up to the specific level), and are congruent with the Pangea B reconstructions. To cite this article: E. Skourtsos et al., C. R. Geoscience 334 (2002) 925–931.     

PALEONTOLOGY

正20141596 Liu Yunhuan(School of Earth Sciences and Resources,Chang’an University,Xi’an 710054,China);Shao Tiequan Early Cambrian Quadrapyrgites Fossils of Xixiang Boita in Southern Shaanxi Province(Journal of Earth Sciences and Environment,ISSN1672-6561,CN61-1423/P,35(3),2013,p.39-43,3 illus.,20 refs.)     

GEOCHEMICAL EXPLORATION

正20141719 Chen Zhijun(State Key Laboratory of Geological Processes and Mineral Resources,China University of Geosciences,Wuhan 430074,China);Chen Jianguo Automated Batch Mapping Solution for Serial Maps:A Case Study of Exploration Geochemistry Maps(Journal of Geology,ISSN1674-3636,CN32-1796/P,37(3),2013,p.456-464,2 illus.,2 tables,10 refs.)     

MICROPALAEONTOLOGY

正20140962 Chen Fenning(Xi’an Institute of Geology and Mineral Resources,Xi’an710054,China);Chen Ruiming Late Miocene-Early Pleistocene Ostracoda Fauna of Gyirong Basin,Southern Tibet(Acta Geologica Sinica,ISSN0001-5717,CN11-1951/P,87(6),2013,p.872-886,6illus.,56refs.)     

PETROLOGY

正1.IGNEOUS PETROLOGY20142008Cai Jinhui(Wuhan Center,China Geological Survey,Wuhan 430205,China);Liu Wei Zircon U-Pb Geochronology and Mineralization Significance of Granodiorites from Fuzichong Pb-Zn Deposit,Guangxi,South China(Geology and Mineral Resources of South China,ISSN1007-3701,CN42-1417/P,29(4),2013,p.271-281,7illus.,     

ENVIRONMENTAL GEOLOGY

正20141205Cheng Weiming(State Key Laboratory of Resources and Environmental Information System,Institute of Geographic Sciences and Natural Resources Research,CAS,Beijing 100101,China);Xia Yao Regional Hazard Assessment of Disaster Environment for Debris Flows:Taking Jundu Mountain,Beijing as an     

PROSPECTING EXPLORATION

正20141266Fan Chaoyan(Guangdong Provincial Key Laboratory of Mineral Resources and Geological Processes,Guangzhou 510275,China);Wang Zhenghai On Error Analysis and Correction Method of Measured Strata Section with Wire Projection Method(Journal of     

OCEANOGRAPHY & MARINE GEOLOGY

正20140582 Fang Xisheng(Key Lab.of Marine Sedimentology and Environmental Geology,First Institute of Oceanography,State Oceanic Administration,Qingdao 266061,China);Shi Xuefa Mineralogy of Surface Sediment in the Eastern Area off the Ryukyu Islands and Its Geological Significance(Marine Geology Quaternary Geology,ISSN0256-1492,CN37     

ENVIRONMENTAL GEOLOGY

正20141810 Bian Yumei(Geological Environmental Monitoring Center of Liaoning Province,Shenyang 110032,China);Zhang Jing Zoning Haicheng,Liaoning Province,by GeoHazard Risk and Geo-Hazard Assessment(Journal of Geological Hazards and Environment Preservation,ISSN1006-4362,CN51-1467/P,24(3),2013,p.5-9,2 illus.,tables,refs.)