江西之成矿时代及矿产区域

江西矿产,种类甚繁,分布亦广,金属有钨锡铋钼铁?金银铜铅锌锑钴等,非金属有煤瓷土重晶石石膏石墨氟石长石云母硫油页岩等。基中以钨锡灯瓷土铁锰六者蕴藏最富,前四者业已大量开采,后二者则尚未充分开发,其余各项矿产,虽分布零星,或储量不大,但均有注意之价值,堪供小规模之开采。     

关于非法采矿罪认定中的几个问题

对于非法采矿罪的规定,主要涉及《矿产资源法》第三十九条、《刑法》第三百四十三条第一款、《最高人民法院关于审理非法采矿、破坏性采矿刑事案件具体应用法律若干问题的解释》第一条至第三条。 《矿产资源法》第三十九条规定：“违反本法规定未取得采矿许可证擅自采矿的,擅自进入国家规划矿区、对国民经济具有重要价值的矿区范围采矿的,擅自开采国家规定实行保护性开采的特定矿种的,责令停止开采、赔偿损失,     

地质队要带头贯彻执行《矿产资源法》

《矿产资源法》是振兴和保护我国矿业的基本法律,该法规定地矿部门对矿产资源勘查,开采实行统一监督管理。法律规定从事矿产资源勘查、开采必须先登记,取得许可证方能施工,地质队要带头作执行《矿产资源法》的模范     

关于矿产资源开发中土地问题的讨论

矿产资源开发涉及到土地使用的变更。土地的多级所有制造成土地管理和矿产资源开发与管理中的诸多矛盾，引起了矿产资源开发的混乱。因此，明确土地国家一级所有，对培养矿产资源勘查和开采市场，实行矿产勘查成果的有偿转让，限制小规模开采，具有重要意义。     

科技文摘

对全世界砂金矿的资料分析表明,绝大多数砂金矿的类型并不是由其品位和规模来划分的。在所有已研究过的砂金矿类型中,只有河谷砂矿和洪积砂矿与众不同。当砂矿由小规模开采转为大规模开采时,其品位、规模相应则会发生变化。小规模开采分为地上和地下(即砂矿地下开采)两种。欲进行小规模地表开采的砂金矿,其优劣比大致为5:3。一旦施行小规模开采,那么其与后来所进行的大规模开采的优劣比则为4:1。如果一个砂金矿适于作大规模开采,且事先已小规模开采出部分金,那么其保有储量(log10kg)就可由下列公式求得:     

在资源合作中需考虑的俄罗斯法律特点

(1)注意俄罗斯法律和法规关于在俄罗斯境内进行资源开采活动中所界定的所有权和使用、支配权方面的条款,以便签署好与俄资源开发合作的协议.一般来说,俄罗斯的《私有化法》、《矿产法》等有关法律对所有权和使用、支配权等都做了具体的划分;都规定资源、矿藏、土地属于国家所有.但又规定对其的使用和支配权既可以属于国家、也可以属于集体甚至个人所有.例如,1995年补充修订的《俄罗斯联邦矿产法》规定,“在俄罗斯联邦领土范围内,地下资源,包括地下空间,蕴藏在地下的有用矿物、能源和其他资源,均属国家所有”.但同时又规定;“有关对矿产资源的开采、使用和支配方面的问题由俄罗斯联邦和联邦主体共同处理.不能把矿产区块作为买卖、馈赠、继承、捐献和抵押的对象,或以其它形式放弃矿产使用权.可以在联邦法律范围内放弃矿产使用权或将其由一方转让给另一方,根据许可证条款规定,从地下开采出来的有用矿物和其它资源可以属于国家,也可以属于联邦主体,还可以属于市政所有、私人所有等”.     

对有关矿产资源补偿费征收问题的刍议

国务院《矿产资源补偿费征收管理规定》(以下简称《规定》)第三条规定:“矿产资源补偿费按照矿产品销售收入的一定比例计征。……本规定所称矿产品,是指矿产资源经过开采或者采选后,脱离自然状态的产品。”那么哪些矿产适用于开采,哪些矿产又适用于采选呢?这一直是广大     

关于在生产活动中伴生水化学成分的变化

矿产开发时,总是会改变水动力条件和地下水与岩石相互作用的环境。因此,可以看到在开采矿产时形成的“伴生”水的化学成分是变化无常的,本文试图探查固体矿产和石油开采伴生水化学成分的变化特征,并说明其成分形成和变化的某些规律性。     

国酒基地内矿业开发引发的地质环境问题及其对策

本文论述了国酒基地内矿产开发的主要形式,分布特征。矿产开采所引发的环境地质问题,并对其矿业开发提出相应的防治对策。     

我国矿产资源开发管理过程中暴露的问题

文章概括了依据我国现行的《矿产资源法》在矿业开发管理过程中暴露出土地所有权与矿产资源所有权的矛盾、矿业权流转中没有法律保障、矿山环境与治理中缺乏系统性规定、矿产资源税与矿产资源补偿费的征收制度有缺陷、小型矿山采矿的无序状态、外国投资我国矿业缺乏限制性规定以及战略性矿产资源储备制度尚未建立等问题,认为完善现行《矿产资源法》,加强矿产资源的开发管理,理顺矿业生产关系,遏制矿产资源浪费,实现矿产资源保护与合理开发相结合已成为当务之急。     

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.     

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).     

HYDROGEOLOGY

正20141756 Chen Ruige(Mathematical College,China University of Geosciences,Beijing100083,China);Zhou Xun Numerical Simulation of Groundwater Level Fluctuation in a Coastal Confined Aquifer with Sloping Initial Groundwater Level Induced by the Tide(Geological Bulletin of China,ISSN1671-2552,CN11-4648/P,32(7),2013,p.1099-1104,6 illus.,16 refs.) Key words:confined water,groundwater level     

METAMORPHIC PETROLOGY

正20141408 Cai Jia(Institute of Geology,Chinese Academy of Geological Sciences,Beijing100037,China);Liu Fulai Petrogenesis and Metamorphic P-T Conditions of Garnet-Spinel-Biotitebearing Paragneiss in Danangou Area,Daqingshan-Wulashan Metamorphic Complex Belt(Acta Petrologica Sinica,ISSN1000-0569,CN11-1922/P,29(7),     

SERIALS

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GEOPHYSICAL EXPLORATION

正20142386An Guoying(China Aero Geophysical Survey and Remote Sensing Center for Land and Resources,Beijing 100083,China)Application of Satellite Remote Sensing in Regional Hydrogeological Investigation:Taking Cenozoic Strata in Wenquan Sheet(1∶250 000)of Karakoram Range as an Example(Geosci-     

QUATERNARY GEOLOGY & GEOMORPHOLOGY

正20141016An Chengbang(Key Laboratory of Western China’s Environmental Systems,Ministry of Education,Lanzhou University,Lanzhou 730000,China);Zhao Yongtao Lake Records during the Last Glacial Maximum from Xinjiang,NW China and Their Climatic Impli-     

PETROLEUM GEOLOGY

正20141538 Cao Qing(School of Earth Sciences and Engineering,Xi’an Petroleum University,Xi’an 710065,China);Zhao Jingzhou Characteristics and Significance of Fluid Inclusions from Majiagou Formation,Yichuan Huangling Area,Ordos Basin(Advances in Earth Science,ISSN1001-8166,CN62-1091/P,28(7),2013,p.819-828,7 illus.,3 tables,43 refs.)     

GEOCHEMISTRY

正20142002 Wei Hualing(Institute of Geophysical and Geochemical Exploration,Chinese Academy of Geological Sciences,Langfang065000,China);Zhou Guohua Element Content and Mineral Compositions in Different Sizes of Soil in Tongling Area,Anhui Province(Geological Bulletin of China,ISSN1671-2552,CN11-4648/P,32(11),2013,p.1861