GEOBAROMETRIC CONSTRAINTS ON THE DEPTH OF EMPLACEMENT OF GRANITE FROM THE LADAKH BATHOLITH, NORTHWEST HIMALAYA, INDIA

GEOBAROMETRIC CONSTRAINTS ON THE DEPTH OF EMPLACEMENT OF GRANITE FROM THE LADAKH BATHOLITH, NORTHWEST HIMALAYA, INDIA1　BlundyJD ,HollandTJB .Calcicamphiboleequilibriaandanewamphibole plagioclasegeothermometer[J] .ContribMiner alPetrol,1990 ,10 4 :2 0 8～ 2 2 4 . 2　SchmidtMW .Amphibolecompositionintonaliteasafunctionofpressure:anexperimentalcalibrationoftheAl inhorn blendebarometer[J] .ContribMineralPetrol,1992 ,110 :30 4～ 310 . 3　Th…     

吉尔吉斯斯坦提高矿权使用费收费标准

2021年9月27日,吉尔吉斯斯坦内阁通过了《关于探矿权采矿权使用费管理办法》修订法案,矿业权使用费被再次提高.该法案在发布15日后正式生效,在法案生效前已有20多家企业向国家退回了矿业权.根据官方数据,目前吉尔吉斯斯坦共发放矿业权证约2 500个,其中金矿矿权约500个、银300个.     

冻雨北上访冰城——浅析冻雨成因及其次生、衍生灾害分析

每年立冬前,哈尔滨往往已白雪皑皑,2021年冰城却意外地享受起“我在北方的寒夜里四季如春”的暖阳。直至立冬,干雪、湿雪、雨、雨夹雪、冰霰(粒)、冻雨6种降水形态竟在短时间内迅速“霸屏”。在暴雪加冻雨的洗礼下,哈尔滨一夜入冬、万物冰封,仿佛跨入冰河世纪。雨淞(非灾冻雨的雅称)将欧式建筑冻凝成“水晶宫阙”,铸铁栅栏到处“拔丝冰糖”,树木经过“琉璃脱蜡”.     

MINERALOGY AND GEOCHEMISTRY OF ULTRAMAFIC ROCKS FROM THE INDUS SUTURE OPHIOLITE IN SWAT, NW PAKISTAN

MINERALOGY AND GEOCHEMISTRY OF ULTRAMAFIC ROCKS FROM THE INDUS SUTURE OPHIOLITE IN SWAT, NW PAKISTAN1　BeccaluvaL ,MacciottaG ,PiccardoGB ,etal.PetrologyoflherzoliticrocksfromthenorthernApennineophiolites[J] .Lithos,1984 ,17:2 99～ 316 . 2　HartmannG ,WedepohlKH .ThecompositionofperidotitetectonitesfromtheIvreacomplex ,northernItaly:residuesfrommeltextraction[J] .GeochimCosmochActa ,1993,57:176 1～ 1782 . 3　JaquesAL ,ChappellBW .Petrologya…     

THE STUDY AND DISCUSSION ON “DIGITAL QINGHAI—TIBET PLATEAU”

THE STUDY AND DISCUSSION ON “DIGITAL QINGHAI—TIBET PLATEAU”     

铼-锇同位素测年法研究综述

Re-Os同位素测年的最合适的对象为辉钼矿,定年是基于放射性的187Re通过β衰变成为187Os而引起锇同位素异常来计算地质年代的。在目前的测试研究中,较常用的方案为Carius管溶样法-蒸馏分离Os-萃取分离Re-TJA PQ ExCell ICPMS测定同位素比值。在我国有许多成功用Re-Os同位素测定钼矿床成矿年龄的范例,对认识矿床特征及成因、总结区域的成矿演化规律、解决相关地质问题具有重要的理论意义,而且对于指导矿床的预测和勘查具有很高科学价值。     

Formation Pressure Evaluation Method for Single Well

Ｔｈｅｆｏｒｍａｔｉｏｎｐｒｅｓｓｕｒｅｅｖａｌｕａｔｉｏｎｉｓｐｌａｙｉｎｇｖｅｒｙｉｍｐｏｒｔａｎｔｒｏｌｅｉｎｏｉｌａｎｄｇａｓｅｘｐｌｏｒａｔｉｏｎａｎｄｄｅｖｅｌｏｐ ｍｅｎｔ .Ｉｔｃａｎｐｒｏｖｉｄｅｖｅｒｙｉｍｐｏｒｔａｎｔｉｎｆｏｒｍａｔｉ     

Spatial pattern and function of corridors in wetlands of Liaohe delta

lINrnoDUCnoNConidorsaresPecialpatcheswithnarrowandlongshaPe,andoftenhavethefunctionsastransPOrtation,protection,resomeesandaesthetics(FoRMAN,l986;ALMO,l998).Conidorsconnectvariouslandscapesbytransportingmaterials,energyandinformation.NewconidorscreatedbyhumanactivitiesareimPortantfac-torsleadingtolandscapefragZnentation.Inthemean-while,theyarealsobanierstothecormectionsofdifferentecosystems(WANGetal-,1996).Theconi-dorshavefrhoentedthelandscaPe,andchangedtheoriginalsituationofthenatu…     

Sequence Stratigraphic Modeling of Sedimentary Basin: Conceptual Model and Application to Erlian and Yinggehai Basins, China

INTRODUCTIONQuantitativebasinmodelinghasbecomeoneofthefrontiersinsedimentarybasinanalySis.Alargevarietyofnumericalmodelsconcerningbasinformation,basinfillingprocess,thermalhistory,hydrocarbongenerationandaCCUmulationhavebeenformulatedoverthelastdecadetondAnctheprocessesandevollltionofsedimentarybasins(Mckenzie,1978,signeretal.,1990;Ungereretal.,1990).Thebasinmodeling,utilizingcomputersimulationtechnique,isapowerfultoolforbasinanalySisandhasincreasinglybeenintegratedintoconventionalbasi…     

Identification and analysis of root causes of desertification in semi-arid region of China──a case study from Ejin Horo Banner, Inner Mongolia

1 IntroductionDeseamcation. defined as land degradation in tri4 send-arid and dry SUb-htald areas reSulhng fromvarious factors, including cljjnatic variahons and human activihes, is a world-wide phenomenon whichcauses the end's ecosystems to deteriorate. Nowadays it edicts about tWo-thirds of the coUntries of theworld, and one-third of the earth's surface, on which one-ffe of the world population liVe.Desertilicahon is accompanied by a reduction in the natUI'al potenhal Of the land ecosyst…