江苏铁矿资源潜力评价

铁矿资源是江苏省重要金属矿产资源之一。根据最新的地质找矿原则,突出“攻深找盲”,开辟“第二成矿空间”的找矿思路,以新的成矿理论为指导,加强资料二次开发利用的力度和深度,充分运用地质、物探、化探、遥感等新的勘查技术方法,对铁矿资源潜力进行评价。通过此次评价,共圈定了6个远景调查区,6个重点普查区,8个普查验证区。     

重磁及瞬变电磁法在百灵山铁矿浅部勘查中的应用

正百灵山铁矿作为东疆一带的老矿山,在近几十年内的开采开发,矿山资源量逐步减少,随着开采深度的增加,生产成本和安全风险系数的加大,可开发铁矿资源量面临枯竭。为了老矿山可持续性发展,本着节能降耗的目的,在百灵山铁矿外围地区开展浅-中部铁矿勘查,以期实现老矿山找盲增储的目的。在百灵山铁矿外围地区开展重、磁、激电、TEM测深等综合物探方法试验工作,通过实际钻探对比,这些物探方法的应用对外围的铁矿勘查中具     

进入21世纪新疆非油气矿产资源物探勘查技术的应用

新疆矿产资源优势明显、找矿潜力巨大。进入21世纪以来,新疆在地质勘查资金投入大幅度增加的条件下,地质勘查工作获得了又一次难得的发展机遇。地质勘查工作遵照"区划、区调、物化探、勘查科研五统一"的科学地质勘查体系,非油气资源物探勘查技术在铁、铜镍、铅锌和煤等矿产勘查、攻深找盲及寻找地下水源地等方面取得了重要进展,对新疆重要成矿带地质找矿突破和矿业开发发挥了重要作用。     

辽宁省辽阳市弓长岭发现1．2亿吨铁矿

经全国有关部门院士和专家审核评选,由辽宁省国土资源厅和省地质学会推荐上报的辽阳市弓长岭铁矿接替资源勘查项目,从众多申报项目中脱颖而出,荣获中国地质学会全国2011年度十大地质找矿成果。     

辽北煤炭勘查“攻深找盲”的新突破

《国务院关于加强地质工作的决定》颁布以来,东北煤田地质局一。一队在辽宁省国土资源厅的指导与支持下,在辽北地区实施煤炭资源勘查“攻深找盲”,取得了重大突破性成果,先后提交了《铁法煤田外围煤炭普查报告》、《辽宁省开原市庆云堡煤炭普查报告》和《辽宁省昌图县古榆树煤、煤层气预查》等报告,共获煤炭资源量16．2亿吨,煤层气资源量76亿立方米。总结几年来辽北地区煤炭资源勘查“攻深找盲”的经验,笔者有以下几方面体会。     

辽宁省地质矿产勘查局与本钢集团签署整装勘查战略合作协议

6月29日,辽宁省地质矿产勘查局与本钢集团有限公司签订了本溪铁矿整装勘查战略合作协议。辽宁省地质调查院、辽宁省物测勘查院领导与本钢集团矿产资源开发公司领导在两份铁矿整装勘查战略协议书上签字。辽宁省国土资源厅副厅长杨旭、本钢集团董事长张晓芳、辽宁地勘局副局长杨占兴等领导出席了签字仪式。     

冀东地区蕴含近百亿吨铁矿资源潜力

国土资源部门户网2010-01—11消息河北省东部地区铁矿资源潜力预测仍有100亿t,有望成为我国中东部铁矿勘查最具潜力的地区。在2009年12月26日中国冶金地质总局召开的冀东铁矿地质勘查技术研讨会上,这一预测得到了与会院士、专家的肯定。     

在辽西中元古地层开展深部找矿对实现找矿突破的意义

辽宁省的矿产勘查工作现状,一是矿产勘查工作开展较早,已有近百年的历史;二是地勘队伍较多,省内可进行矿产勘查的国土面积相对较小,这样造成辽宁省地质勘查工作程度较高,地表及浅部矿越来越少,找矿难度普遍增大,就辽宁西部而言,由于地形、地貌、岩石裸露等条件更有利于矿产勘查工作的开展,因此,辽西地区要实现找矿突破,把“攻深找盲”做为切入点,已显得非常重要,也是必由之路。     

大打富铁矿的地质会战

冶金地质战线广大职工,遵照伟大领袖和导师毛主席对地质工作的一系列重要指示,热烈响应党中央和国务院的号召,迅速掀起了大找富铁矿的群众运动,取得了可喜的成绩.富铁矿是多快好省地发展我国钢铁工业的重要物质基础.大找富铁矿,搞好富铁矿地质会战,为生产建设提供足够的富铁矿资源,这对巩固无产阶级专     

福建省煤炭资源勘查存在的问题与对策

福建省煤炭资源需求旺盛,煤炭保有资源量少,迫切需要寻找煤炭后备资源。随着裸露-半裸露矿区勘查完成,煤炭勘查进入“攻深找盲”阶段。在煤炭资源勘查过程中发现存在诸如勘查投入不足、能力不相适应、环境不佳、机制不完善等急需解决的实际问题。认为加大勘查投入、提升勘查能力、优化勘查环境、完善勘查制度、加强队伍建设是实现地质找煤取得新突破的保障。     

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