基于地质异常研究的矿产预测

从地质异常理论入手，讨论了地质背景场的分区、分级，在此基础上，分四个阶段进行了矿产预测；地质异常场预测，成矿地质场预测，矿化异常区预测和矿产靶区圈定。该方法在陕西勉略宁地区进行大比例矿产预测实践中，取得了很好的效果。     

基于MORPAS的证据权重法在沽源盆地铀成矿预测中的应用

文章在对沽源盆地内的地质、物化探等信息与铀成矿的关系进行深入分析的基础上,借助MORPAS平台,对区内各控矿要素定量化,利用GIS的空间分析功能提取了断裂Buffer、潜火山岩Buffer、航磁异常等在内的16个证据图层,并将研究区划分为1 km×1 km大小的9 562个单元,利用证据权重法对研究区铀矿进行预测,圈定了3级成矿远景,为该区进一步找矿指出了方向.     

成矿系统及综合地质异常

矿床综合异常是成矿预测的重要标志。在概述成矿系统特征的基础上,论述了地质异常与成矿系统的关系,提出矿源场异常、矿液通道异常、矿石圈闭异常（储矿场异常）等概念,建立了成矿系统与综合异常的相关性模型框架。提出了矿床综合异常的研究方法,并依据对胶东金矿和赣西北铜矿地质异常的实际研究,提出对找寻热液金属矿床有重要意义的４种异常带：①异常浓集带;②异常急变带;③异常复合带;④异常叠加带。并强调指出,对控矿地质因素和矿化类型的详细研究是评价异常和成矿预测的关键问题。     

证据权法在成矿预测中的应用——以湖北通城地区铍矿的成矿预测为例

应用证据权法和MORPAS GIS技术开展了通城地区铍矿的成矿预测研究。在总结通城地区区域地质背景和预测准则的基础上,通过建立通城地区地质、矿产、物探、化探、遥感等基础空间数据库,综合分析多源数据,运用MORPAS矿产资源评价系统提取与铍矿相关的信息,采用证据权法对铍矿有关的证据图层进行系统的分析和处理,编制成矿后验概率等时线图,最后根据高值区圈定了找矿远景区。此次预测工作共选出15个证据因子层,对该地区以铍矿为主的稀有金属矿床进行了定量预测,最终圈定了两个远景区。该两处远景区与己知铍矿点具有相似的成矿条件,应在今后的勘探工作中引到足够的重视。     

基于GIS证据权重法的陕西旬阳地区铅锌成矿远景区定量预测

针对工作区铅锌矿成因类型利用GIS空间信息系统对地质、物探、化探、遥感等各类异常综合分析与成矿要素的信息提取,并在矿产资源评价分析系统（MORPAS3．0）下建立了陕西旬阳地区铅锌矿证据权重法模型证据图层：赋矿地层、控矿构造、化探异常等18个,通过条件独立性检验确定证据权因子层15个,绘制了陕西旬阳地区铅锌矿资源远景预测区后验概率图,给出了陕西旬阳地区铅锌矿产远景定量预测区评价结论,取得了良好的预测效果。     

基于MORPAS的证据权重法在凤太矿集区金矿成矿预测中的应用

结合陕西省凤太矿集区金矿成矿特征,借助MORPAS平台,对区内各控矿要素量化,并利用GIS的空间分析功能提取了地层、断裂Buffer、岩浆岩、元素化探异常在内的十一个证据图层,并建立证据权重找矿模型,圈定了六个找矿靶区,指明了找矿方向。MORPAS的量化及空间分析功能结合证据权方法,使得利用地质数据库进行成矿预测更加简便快捷,预测结果也相对客观。但是,当其网格化以及在针对不同规模矿床和不同精度的数据进行预测时,还需要进一步改善。     

基于GIS的证据权法在浙西铜矿资源成矿预测中的应用

浙江西部地区构造与岩浆活动频繁,区内分布有元古宙和古生代的铜矿成矿有利层位,北东向为主的深大断裂发育且多次活动,神功期和燕山早期的岩浆活动与成矿关系较密切。长期而复杂的地质演化、构造作用和岩浆活动为区内许多矿产的形成提供了良好的条件,铜、金、银等矿产的成矿条件较好。在分析研究区构造、地层、岩石、断裂等特点并在对浙江西部铜矿床的成矿规律深入研究的基础上,利用MapGIS 6.7和MORPAS 3.0软件平台提取构置了来自地质异常、成矿异常等多源信息的多个地质变量信息,将研究区划分为5 km×5 km的网格单元共1 755个,利用证据权法的数学模型对研究区铜矿资源进行预测,最终圈定了5个成矿远景区作为今后工作的重点区域。     

特大型矿床研究若干问题探讨

特大型矿床具有特殊的研究意义。根据对一些特大型矿床成矿特征的研究，其具有成矿偏在性，即对成矿元素（矿种）、成矿类型、成矿时代、成矿背景（环境）等均具十分明显的选择性，并受控于异常成矿构造聚敛场，特别是“景”、“场”、“相”、“床”四个成矿等级体制的最佳耦合，成矿作用爆发异常是导致特大型矿床形成的关键因素。对在地质历史上周期性地爆发成矿作用异常的原因及其与常规成矿作用的“引潮共振”机制对比分析研究，从矿集区中发现矿汇，按等级体制最佳耦合形成特大型矿床研究思路有助于对特大型矿床的深入研究和勘查评价。     

金矿成矿预测中成矿流体场研究——以赤峰红花沟金矿为例

本文以赤峰红花沟金矿为例讨论内生金矿床的成矿流体场研究方法在金矿成矿预测中的应用。成矿流体场是利用矿床（体）中的流体包裹体研究所得到的成矿热晕场、成矿蒸发晕场、成矿气晕场的综合，并与成矿的物化参数相结合确定成矿预测的指标和成矿预测部位。     

中国特大型金属矿床成矿偏在性与成矿构造聚敛（场）

中国特大型金属矿床成矿偏在性主要表现为对矿种、矿床类型、成矿时间和成矿背景的特殊选择,而且主要取决于地质、地球化学和地球物理多种成矿控制因素非常罕见的耦合汇聚,称之为异常成矿构造聚敛场。据国内主要特大型矿床的研究,随地质历史演化初步可划分：太古宙－古元古代同剪切异常成矿构造聚敛场、元古宙－古生代三同一体异常成矿构造聚敛场、中生代“行”、“列”、“汇”构造－岩浆异常成矿构造聚敛场、新生代多阶湖汇流异     

The terrestrial fauna of the Late Triassic Pant-y-ffynnon Quarry fissures,South Wales,UK and a new species of Clevosaurus (Lepidosauria: Rhynchocephalia)

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.     

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.     

The effect of water on accessory phase solubility in subaluminous and peralkaline granitic melts

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.     

Quaternary stresses revealed by calcite twinning inversion: insights from observations in the Savonnières underground quarry (eastern France)

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).     

NONMETALS DEPOSITS

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.)     

MATHEMATICAL GEOLOGY

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,     

PROSPECTING EXPLORATION

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.)     

STRUCTURAL GEOLOGY

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-     

STRUCTURAL GEOLOGY

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