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基于网格单元的总合式和非总合式结合的区域矿产资源潜力评价方法 总被引：1，自引：0，他引：1
区域矿产资源潜力有总合式评价和非总合式评价两大类方法.总合式评价方法简便易行,可以得到一个区域的资源潜力总量的估计,但是没有其在区域中的空间位置信息,区域矿产资源潜力评价早期主要是用总合式评价方法.随着资料数据的积累,特别是计算机和GIS技术的应用,能给出空间位置信息的非总合式评价越来越多的用于区域矿产资源潜力评价.非总合式评价主要把区域划分成同形等大的单元,在圈定成矿远景区单元基础上,用类比方法对成矿远景区单元进行矿产资源潜力数量预测评价.总合式矿产资源潜力评价是区域矿产资源潜力评价的主要方法,可以对区域内潜在的矿产资源量进行预测,但是只有一个总量,没有区域内矿产资源空间分布信息,不能结合各局部空间具体情况进行各种环境经济社会评价,因此需要将其预测的资源量空间定位化.非总合式矿产资源潜力评价虽然能够定位,但因其是用控制单元的探明资源量进行类比外推,所以无法对已知矿产资源量的单元内潜在的矿产资源量进行预测.提出了用基于网格单元的总合式和非总合式方法结合的矿产资源潜力评价方法,解决了总合式方法单元资源量预测值的空间定位和分配问题.并且以云南铅锌矿为例进行了计算,既得到了总量也得到了其空间分布量,修正了非总合式预测方法的不足,特别适用于对矿产资源进行环境、经济、社会等评价或者联合评价.以云南铅锌矿产资源潜力评价为实例进行了应用,得到初步结果. 相似文献
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大数据思维下的矿产资源评价 总被引：6，自引：3，他引：3
以大数据时代的预测思维方法,结合重要矿产资源潜力评价具体工作,探索了矿产资源预测评价的基本理论基础。认为大数据的相关性预测方法和常用的综合信息矿产预测方法是一致的,矿产预测模型理论、多学科信息相关性分析、预测地质求异理论、矿产区域趋势分析方法是矿产资源评价的四项基本理论。总结了在数字化、信息化时代矿产资源预测评价的主要工作流程。建立数字化预测数据平台、根据预测矿产模型进行数据清洗、编制预测要素图件、建立预测模型、圈定预测靶区和成矿远景区、进行资源潜力估算等是预测评价的基本任务与流程。 相似文献
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贵州省矿床式与矿产预测类型及预测方法类型 总被引：1，自引：0，他引：1
贵州矿产资源丰富,类型多样,分布广。为了摸清我省矿产资源家底,为矿产资源保障能力和勘查部署决策提供依据,特开展全省矿产资源潜力评价工作。为了顺利完成该项工作,使该项工作的统一性、规范性,要对全省矿产进行矿床式、矿产预测类型、矿产预测方法类型进行划分,本文对贵州省矿产进行矿床式、矿产预测类型、矿产预测方法类型进行初步划分。 相似文献
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从GIS技术的发展出发,介绍当前GIS在矿产资源评价预测方面的应用技术,并对几种流行的方法进行对比分析,总结它们的各自特点及适用条件。最后,展望应用GIS新技术进行矿产资源网络评价预测的前景。 相似文献
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在MapGIS的基础上对矿产资源评价系统进行系统需求研究,总结出矿产资源评价信息系统的总体结构,给出了矿产资源评价中经常用来解决资源量的定位问题的数学模型——矿床定位预测特征分析模型,并对矿产资源评价系统进行了结构设计。 相似文献
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应用GIS进行矿产资源评价现状及技术方法研究方向 总被引：3，自引：1，他引：2
ＧＩＳ作为一种有效的矿产资源评价预测方法,在国外已被广泛应用,在对国内外应用ＧＩＳ进行矿产资源评价的现状、技术方法进行探讨的基础上,重点介绍了新疆ＧＩＳ的发展现状,并就新疆进行ＧＩＳ矿产资源评价的技术方法、技术思路进行了研究与探讨。 相似文献
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美国矿产资源评价状况 总被引：5，自引：0，他引：5
矿产资源评价包括对已发现矿床的分类与评价以及预测尚未发现的矿床资源量和未知的矿床类型的资源量两个方面。本文介绍美国地质调查局九十年代进行的矿产资源评价专项研究的方法、技术和部分评价成果。我们相信这些方法和技术在我国的矿产资源评价工作中是可以借鉴的。 相似文献
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矿产资源是人类生存发展的物质基础。迄今我国科学家已经发现173个矿种, 形成了大量的地质资料与科研成果。本文在全国潜力评价工作的基础上, 总结形成了矿床成矿系列综合信息预测理论方法体系, 该体系以矿床成矿系列、成矿分析、综合信息矿产预测理论为基础, 以区域综合信息编图、综合信息预测模型构建及矿产资源定量预测为主要内容, 通过构建地质空间数据库、圈定矿预测类型和工作区、编制专题预测底图-综合信息预测要素图、建立综合信息预测模型, 进而进行矿产资源的定位-定量预测, 开展矿产资源的潜力评价研究。最后本文以熊耳山金矿为例, 运用该理论方法开展区域矿产资源定量预测, 为矿产资源预测提供参考意义。 相似文献
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Emily Keeble David I. Whiteside Michael J. Benton 《Proceedings of the Geologists' Association. Geologists' Association》2018,129(2):99-119
Pant-y-ffynnon Quarry in South Wales yielded a rich cache of fossils in the early 1950s, including articulated specimens of new species (the small sauropodomorph dinosaur Pantydraco caducus and the crocodylomorph Terrestrisuchus gracilis), but no substantial study of the wider fauna of the Pant-y-ffynnon fissure systems has been published. Here, our overview of existing specimens, a few described but mostly undescribed, as well as freshly processed material, provides a comprehensive picture of the Pant-y-ffynnon palaeo-island of the Late Triassic. This was an island with a relatively impoverished fauna dominated by small clevosaurs (rhynchocephalians), including a new species, Clevosaurus cambrica, described here from a partially articulated specimen and isolated bones. The new species has a dental morphology that is intermediate between the Late Triassic Clevosaurus hudsoni, from Cromhall Quarry to the east, and the younger C. convallis from Pant Quarry to the west, suggesting adaptive radiation of clevosaurs in the palaeo-archipelago. The larger reptiles on the palaeo-island do not exceed 1.5?m in length, including a small carnivorous crocodylomorph, Terrestrisuchus, and a possible example of insular dwarfism in the basal dinosaur Pantydraco. 相似文献
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Gilles Serge Odin 《Comptes Rendus Geoscience》2002,334(6):409-414
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. 相似文献
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The effect of water on accessory phase solubility in subaluminous and peralkaline granitic melts 总被引：4，自引：0，他引：4
The solubilities of columbite, tantalite, wolframite, rutile, zircon and hafnon were determined as a function of the water contents in peralkaline and subaluminous granite melts. All experiments were conducted at 1035 °C and 2 kbar and the water contents of the melts ranged from nominally dry to approximately 6 wt.% H2O. Accessory phase solubilities are not affected by the water content of the peralkaline melt. By contrast, solubilities are affected by the water content of the subaluminous melt, where the solubilities of all the accessory phases examined increase with the water content of the melt, up to 2 wt.% H2O. At higher water contents, solubilities are nearly constant. It can be concluded that water is not an important control of accessory phase solubility, although the water content will affect diffusivities of components in the melt, thus whether or not accessory phases will be present as restite material. The solubility behaviour in the subaluminous and peralkaline melts supports previous spectroscopic studies, which have observed differences in the coordination of high field strength elements in dry vs. wet subaluminous granitic glasses, but not for peralkaline granitic glasses. Lastly, the fact that wolframite solubility increases with increasing water content in the subaluminous melt suggests that tungsten dissolved as a hexavalent species. 相似文献
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Muriel Rocher Stéphane Baize Stéphane Jaillet Edward Marc Cushing Yannick Lozac&#x;h Francis Lemeille 《Comptes Rendus Geoscience》2003,335(8):701-708
Calcite samples were extracted both from the rock matrix and the superficial coating of a karstified fault plane of an underground quarry, located in the eastern border of the Paris basin. The karstification is dated as Quaternary. Analysis of mechanical calcite twinning reveals that only the calcite matrix has also undergone a compression trending WNW that can be attributed to the Mio-Pliocene alpine collision. Both coating and matrix have undergone a strike-slip regime with σ1 roughly trending north–south, that could correspond to the regional present-day state of stress, a strike-slip compression rather trending NNW, modified by local phenomena. To cite this article: M. Rocher et al., C. R. Geoscience 335 (2003). 相似文献
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正20141520 Bo Ying(Key Laboratory of Metallogeny and Mineral Assessment,MLR,Beijing 100037,China);Liu Chenglin Saline Spring Hydrochemical Characteristics and Indicators for Potassium Exploration in Southwestern and Northern Tarim Basin,Xinjiang(Acta Geoscientica Sinica,ISSN1006-3021,CN11-3474/P,34(5),2013,p.594-602,5 illus.,3 tables,28 refs.) 相似文献
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正20141243Chen Ge(Hangzhou Research Institute of Petroleum Geology,PetroChina,Hangzhou 310023,China);Si Chunsong Study on Sedimentary Numerical Simulation Method of Fan Delta Sand Body(Journal of Geology, 相似文献
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正20142599Chen Sanming(Guangxi Key Laboratory of Concealed Deposits Exploration,Guilin University of Technology,Guilin541004,China);He Yuzhou Block Model and Reserves Estimation of Panzhihua Iron Deposit Based on 3D Geological Modeling(Journal of Guilin University of Technology,ISSN1674-9057,CN45-1375/N,33(4),2013,p.610-615,9illus.,1table,15refs.) 相似文献
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正20140594 Bai Daoyuan(Hunan Institute of Geology Survey,Changsha 410016,China);Zhong Xiang Faults in the Jingzhou Basin and Their Tectonic Settings(Geotectonica et Metallogenia,ISSN1001-1552,CN44-1595/P,37(2),2013,p.173-183,6illus.,59refs.)Key words:basin evolution,tectonic setting,South China In the Upper Paleozoic and Jurassic se- 相似文献
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正20141912Cao Hui(State Key Laboratory for Continental Tectonics and Dynamics,Institute of Geology,Chinese Academy of Geological Sciences,Beijing 100037,China)Gravitational Collapse and Folding during Orogenesis:A Comparative Study of FIA Trends and Fold Axial Plane Traces(Geology in China,ISSN1000-3657,CN11-1167/P,40(6),2013,p.1818-1828,9illus.,35refs.,with 相似文献