舞钢地穹金矿找矿问题

据地洼成矿理论,对舞钢地穹的大地构造演化和已有的金（银）多金属矿床特征进行了研究,总结了成矿规律和控矿因素。认为该地穹成矿的大地构造背景和地质条件均较有利,指出了区内找矿的有利地段     

山东省区域矿床成矿谱系概论

列表介绍了与区域成矿背景有关的山东省地层和侵入岩谱系序列,在综合研究其与矿产成因联系的基础上,依据地质事件对成矿作用的控制,初步建立了山东省矿床成矿系列50个。按山东省二级大地构造单元(鲁东地区三级构造单元)和成矿系列排序,建立了山东省区域矿床成矿谱系。依据区域矿床成矿谱系所反映的矿床成矿系列时空演化,结合地壳发展阶段初步总结了矿床成矿系列的演化规律。     

河南省金矿构造控矿研究

本文运用地洼成矿理论对河南省内金矿床的构造控矿特征进行了总结 ,认为构造是主要的控矿因素 ,它们主要表现为不同型式、不同规模、不同期次的构造对金矿成矿的控制作用。并对构造控矿机制进行了探讨。     

辽宁省金矿成矿系列划分及特征

通过对辽宁省金矿地质特征和成矿规律的研究，将省内金矿划分为 4个成矿系列组合， 5个成矿系列类型， 7种成矿系列， 13个亚系列和 17个矿床（式）类型，并阐述各成矿系列的主要特征及规律，为金矿的预测和勘查提供理论依据。     

陕西小秦岭金矿的富化与动力成矿作用的关系

本文用动力成矿观点对小秦岭金矿田富矿体的形成提出了新的解释,对本区的动力成矿特点作了较详细的说明。文中联系到地壳演化的不同阶段对金矿的富化过程进行了较深入的讨论,并提出了新的成矿系列。笔者以基础地质、大地构造和同位素年龄资料为依据对小秦岭金矿田含金石英脉的成因提出了与前人不同的新观点,认为它是晋宁晚期岩浆期后热液矿床。     

东天山板块构造与金属矿产成矿规律

根据东天山及邻区地层、沉积建造、构造岩石组合、变形、变质、古生物分区、深部地壳结构、地球物理、地球化学特征，以康古尔塔格－黄山深断裂为界，划分了不同级别的构造单元和构造沉积相带。统计分析了２０２个金属矿床，重点研究了金、银、铜、镍、钼、铁等矿产空间分布与板块构造、碰撞带关系，划分出九个成矿带，三个成矿期，以海西中晚期最为显著。成矿与板缘构造活动带地质演化密切相关，与俯冲一碰撞带和韧性剪切带时空演化最为密切。构造分区控制的矿产成带性和构造演化形成的成矿集中期之间相互转化对该区金属矿产有重要控制作用。     

东南地洼区的地球物理特征及其深部构造力源机制探讨

本文较全面地探讨了东南地洼区反映深部构造特点的地球物理特征(波速结构,地温分布,电性,密度,重、磁场异常),综合分析了该区地洼构造形成、演化的力源机制,讨论了地洼构造与板块构造的力源机制关系问题。     

辽宁省重要矿产成矿系列与成矿谱系

辽宁省是全国重要的矿产资源生产基地,为国家建设提供了大量的矿产资源。运用成矿系列的理论和方法,以辽宁省区域构造演化为基础,充分研究省内在一定的时间和环境中,与一定成矿作用有关的重要矿产的成矿地质背景、成矿环境、成矿时代、成矿作用、成矿演化规律,以及与矿床形成有关的地层、岩浆岩、构造、围岩蚀变等特征。重新厘定了辽宁省重要矿产成矿系列,划分了16个成矿系列、17个成矿亚系列。从成矿环境、成矿时代的横向上与构造单元、矿集区的垂向上,结合成矿作用、矿床组合划分了成矿谱系。最后阐述了成矿系列及成矿谱系的特征。辽宁省重要矿种成矿系列和成矿谱系的划分,对深入研究辽宁省区域成矿规律和指导矿产勘查工作具有深远的意义。      

湘西北沅陵-鼎城金矿地质特征及成矿预测

该区在大地构造上位于Ⅱ级构造单元江南台隆中雪峰弧形构造带由NE向构造转为NEE向构造而形成的弧形转折部位。金矿床赋存于元古界板溪群(Ptbn)和元古界冷家溪群(Ptln)地层中,严格受元古界浅海相沉积的一套浅变质(碎屑)岩及断裂构造、热液蚀变控制。通过成矿条件综合分析,该区金成矿地质条件优越,具有较好的找矿潜力。     

论甘肃康县马眼沟金矿地球化学特征与找矿

马眼沟金矿位于陕、甘、川交界处摩天岭区,大地构造位置位于扬子板块、松潘——甘孜褶皱系与秦岭褶皱系三个一级大地构造单元之间的碧口地体内,具有良好的成矿环境和成矿地质与地球化学条件。本文通过对矿区地质特征、化探特征、找矿标志等的阐述及矿床成因的浅要分析,认为韧性剪切作用是成矿的主要动力因素,矿(化)体受韧性剪切带内不同岩性界面间顺层破碎带控制,是韧性剪切带型含黄铁矿石英脉型金矿床。化探特征明显有利,通过1:5万水系测量,1:1万土壤测量缩小定位,是在本区找到金矿(化)体的有效技术方法。     

Thermohaline structure inhomogeneity associated with polynia at the northern margin of Emery Ice-shelf

Based on the hydrographic data in austral summer during the 22nd Antarctic Expedition of China(2005/2006),some features can be found about the northern margin of Emery ice shelf as follows.The heat content in the surface layer(0-50 m) at the eastern end and the western end of the ice-shelf margin is much higher than that at the middle.The upper mixing-layer depth and the seasonal thermocline depth at the middle of the ice-shelf northern margin are much shallower than those at the both ends.However there is much less difference between the middle and the ends in the bottom layer.The remote sensing photos show that the inhomogeneity in the surface-layer water is closely related to the spatial distribution of the floes and polynia in the area.     

Phylogenetic analysis of cultivable bacteria isolated from Arctic sea-ice

Phylogenetic analysis based on 16S rDNA of 8 strains of cultivable bacteria isolated from Arctic sea-ice was studied.The results showed that strain BJ1 belonged to genus Planococcus,which was a genus of low mole percent G C gram-positive bacteria;strain BJ6 belonged to genus Burkholderia of β-proteobacteria and the rest 6 strain all belonged to γ-proteobacteria,of which strain BJ8 was a species of Pseudoalteromonas,strain BJ2-BJ5 and BJ7 were members of genus Psychrobacter.Phylogenetic analysis also indicated that bacteria of genus Psychrobacter of the isolates formed a relatively independent phylogenetic cluster in comparison with other bacteria belonged to genus Psychrobacter.     

Information for authors

正1 Aims and Scope Advances in Polar Science(APS)is an international,peer-reviewed journal jointly sponsored by the Polar Research Institute of China and the Chinese Arctic and Antarctic Administration.APS is a comprchensive academic journal dedicated to presentation of multi-disciplinary achievements in Arctic and Antarctic expeditions and research.Its primary purpose is to publish achievements in fundamental research,applied     

Advances in Polar Science CONTENTS(Volume 25,2014)

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Guide to Authors： Journal of Mountain Science

<正>AIMS AND SCOPE(Editorial Policy)The Journal of Mountain Science(JMS)is devoted to mountains and their surrounding lowlands-ecoregions of particular global importance,with a particular emphasis on the important highlands/mountains in the world,such as the Tibetan Plateau,the Himalayas,the Alps,the Andes,the Rockies and many other mountain ranges of our planet.     

Journal of Mountain Science(JMS)

<正>The Journal of Mountain Science(JMS),founded in2004,is an international English-language journal on mountain sciences.JMS is supervised by the Chinese Academy of Sciences(CAS),sponsored by the Chengdu Institute of Mountain Hazards and Environment,CAS,published by Science Press China,and distributed by Springer exclusively throughout the world(excluding Mainland China).The JMS is published bimonthly,fulltexted in SpringerLink and CNKI,indexed/abstracted by     

Relationship of Arctic sea ice and Northern Hemispheric 500 hPa Polar vortices

Using the NCEP/NCAR reanalysis monthly 500 hPa height data on a 2.5 latitude-longitude grid and 1°×1° sea ice data,the polar vortex area,intensity index and arctic sea ice area index are calculated respectively,and the meridional distribution,period variation and the abrupts in the long range trend are analyzed to study their relationship.The results show that the meridional distribution of sea ice and polar vortex h-ave distinctive difference,the relative positions of them are different in the eastern and western hemispheres,and exept they have periods of 4 months,quasi half year,quasi year,4-5 years and 10 years commonly,and each of them has its own respective variation as well.The sea ice area is decreasing apparently since 1980's,so is the polar vortex area,but their abrupt changge time are different totally.The area of sea ice and polar vortex has prominent positive correlation,but the relationship of sea ice intensity,polar vortex intensity,polar vortex area is complicated.