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- strontium isotope compositions 锶同位素
- Strontium Isotope Composition and Control Factors of Cambrian Marine Carbonate, Xiushan, Chongqing 秀山寒武系海相碳酸盐的锶同位素组成及主要控制因素
- STRONTIUM ISOTOPE COMPOSITION AND CONTROL FACTORS OF GLOBAL SEAWATER IN TRIASSIC 三叠纪全球海水的锶同位素组成及主要控制因素
- The stable variation of lead isotope compositions suggests that it belongs to normal lead. 铅同位素组成变化不大,属正常铅。
- WHAT CAN WE LEARN FROM OXYGEN AND HYDROGEN ISOTOPE COMPOSITIONS OF TREE-RING CELLULOSE IN HIGHER PLANTS? 树年轮纤维素稳定同位素比率的生态学意义?
- H and O isotope compositions of ores show the polygenetic origin of ore-forming solution;and Sr and Pb isotope compositions indicate the mantle and lower crust source. 矿石氢氧同位素组成显示出成矿溶液具备多成因的特点;
- The sulfur and lead isotope compositions indicate that the ore_forming materials were mainly derived from the volcanic rocks and granodioritic porphyries. 硫_铅同位素指示成矿物质主要源于火山岩地层和花岗闪长斑岩脉。
- The geochemical characteristic of S and Pb isotope compositions of the ore minerals and wall rocks, and H and O isotope compositions of gangue rocks from the Caixiashan Pb-Zn deposit in Xinjiang are studied. 摘要对彩霞山铅锌矿床矿石矿物和围岩的硫、铅同位素及脉石矿物的氢、氧同位素地球化学特征进行了研究。
- The hydrogen and oxygen isotope compositions of single minerals and whole-rock were measured for coesite-bearing eclogite at Shima and quartz-bearing eclogite at Huangzhen in southeastern Dabie. 本文报道了大别山东南部安徽石马地区柯石英榴辉岩组合和黄镇地区石英榴辉岩组合的全岩及单矿物的氢氧同位素特征。
- The meteoric origin of geothermal water in study area is evidenced by its environmental isotope composition. 摘要环境同位素研究结果表明,研究区地热水为大气降水成因。
- Diet composition hada large effect on stable carbon isotope composition of cattle tissues. 饲料对牛组织中碳同位素组成的影响远大于牛品种对它们的影响;
- Isotope compositions of nobel gases 稀有气体同位素
- Sr and Pb isotopic compositions are identical to or similar to some ocean island basalts and mantle plume constituent. Nd、Sr、Pb同位素组成与洋岛玄武岩和一些地幔柱组分相同或相近。
- OXYGEN ISOTOPE COMPOSITION OF ANHYRITE IN EARLY STAGE VEINS, MINRAL PARK PORPHYRY SYSTEM, WALLAPAI MINING DISTRICT, ARIZONA, U. S. A. 美国Wallapai矿区Mineral Park斑岩型矿床早期矿脉中硬石膏的氧同位素组成
- This paper analysed the carbon and oxygen isotope composition of brachiopods fossils from the Devonian Period in Sichuan Province. 本论文对来自四川龙门山泥盆纪的腕足化石进行碳、氧同位素分析。
- Secondly, the Os concentration and residence time in seawater, and Os isotope composition of seawater were precisely measured. 对海水中锇的浓度、滞留时间 ,以及现代海水的锇同位素组成进行了精确测定 ;
- POTENTIAL VALUE OF THE STRONTIUM ISOTOPE STRATIGRAPHY IN DATING MARINE SEDIMENTS 锶同位素地层学在海相地层定年中的潜在价值
- The osmium isotopic compositions and model age of mantle peridotite xenoliths from Jiangsu-Anhui area and their geological significance. 苏皖地区幔源橄榄岩捕虏体的锇同位素组成、模式年龄及其意义。
- Based on the study of chemical composition and isotope composition of galena,the paperdiscussed the genetic-type of the deposit. 通过对矿床中方铅矿的化学成分特征对比分析及同位素组成特征的研究,阐述了矿床的成因类型。
- Correlations between strontium isotope of river water and chemical weathering in karst areas, Guizhou Province 贵州河流河水的锶同位素与喀斯特地区化学风化作用