加强经济合同管理是地勘单位面临的一项紧迫任务

地勘单位实行属地化管理后,企业化进程明显加快.地勘单位把自己定位在企业上,以市场主体身份全面进入市场,对外经济交往日益增多,经济合同被大量应用.重视并加强经济合同管理,依法经营、依法维护企业自身合法权益,已成为地勘单位面临的一项刻不容缓的紧迫任务.     

地勘单位文书档案工作初探

地勘单位档案工作是地勘单位管理基础工作的组成部分,是维护地勘单位经济利益、合法权益和历史真实面貌的一项重要工作。地勘单位档案是地勘单位在各项活动中形成的全部档案的总和。其构成包括地质科学技术档案、文书档案、财会档案、经营档案等其他方面的档案。现就地勘...     

治金地质工勘业改革与发展的思考

地勘单位属地化管理,企业化经营,是国家对地质勘查业管理体制及运行机制进行的一项深刻而全面的改革,较之以往进行的“三化”改革有着根本的不同.作为工业地勘单位的冶金地质各局院,不论管理体制怎么变.都必须做好企业化经营这篇     

关于地勘单位事改企若干问题的思考

地勘队伍属地化管理实施以后,逐步实行企业化经营已成为一项十分紧迫的重要任务很现实地摆在我们面前。地勘单位企业化经营的目标取向为企业,实质是事改企。本文试图就地勘单位事改企的紧迫性、基本模式和应着重     

地勘单位实现属地化管理的对策

煤田地勘系统地勘单位实行属地化管理一年多的实践告诉我们,过多或过高地评说实行属地化管理给地勘单位带来的好处,是难以令人信服的;而不从根本上认识属地化管理为地勘单位的改革和发展带来了前所未有的动力和促进作用,也是不符合实际的.关键是要正视     

加快地勘经济发展的若干思考

加速地勘经济发展是摆在地勘部门和地勘单位面前的一项硬任务.它关系到地勘工作如何更好地为国民经济发展服务亦关系到地勘队伍的生存、发展和稳定.发展地勘经济应有明确的目标,笔者认为,主要有五个方面:     

地质项目管理方法研究

地质项目管理是衡量地勘单位管理水平的直接指标。本文在借鉴建设工程项目管理方法的基础上,结合地质项目的特点.研究了一套适合地勘单位的项目管理方法。     

提高地勘单位财务管理水平的几点思考

财务管理是地勘单位管理的核心,是地勘单位蓬勃发展的命脉,是地勘单位长远发展的前提。只有认清地勘单位的管理现状,不断提高地勘单位财务管理水平,才能促进地勘单位的经济发展。     

论地质勘查单位设备管理现代化

随着地质勘查单位改革的不断深化,为使地质勘查单位能够顺利完成所承担的各项地质工作,设备现代化管理成为新时期的一项重要课题,如何管理好地勘单位的设备,成为新形势下设备管理工作     

冶金地质工勘业改革与发展的思考

地勘单位属地化管理,企业化经营,是国家对地质勘查业管理体制及运行机制进行的一项深刻而全面的改革,较之以往进行的"三化"改革有着根本的不同.     

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