同位素组成
- isotopic composition;isotopic constitution;isotopic content
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石英包裹体中流体的地球化学特征基本相似,属H2O&CO2体系,含Au、Cu、Co、Cd等金属元素,具独特的氢氧同位素组成和正铕异常的稀土模式。
The geochemical features of fluid inclusions are basically identical , for these fluids are belong in H2O-CO2 system , contain the same metallic elements of Au , Cu , Co , Cd etc and possess specifically isotopic constitution of hydrogen and oxygen in rare-earth pattern of positive europium abnormality .
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根据天然气形成温度、天然气的碳同位素组成、天然气的轻烃组成分析认为,孔雀河斜坡及邻区的原油和天然气主要为原油裂解气成因。
According to formation temperature , isotopic constitution and lighter hydrocarbon analysis of natural gas , it is believed that the crude oil and natural gas there derives from oil-cracked gases .
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利用C、N同位素组成的变化指示水体中营养状况的变化。
Carbon and nitrogen stable isotope are used as indicators of nutrient changes .
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硅酸盐和金属氧化物矿物氧同位素组成的CO2激光氟化分析
Oxygen Isotope Analysis of Silicate and Metal Oxide Minerals by CO_2 Laser Fluorination
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碳成岩作用对锰碳酸盐形成过程中C和O同位素组成影响很大。
Carbon diagenesis has an important effect on carbon and oxygen isotope compositions during the formation of manganese carbonates .
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皖苏鲁新生代玄武岩的Sr-Nd同位素组成及其含义
Sr-Nd isotope geochemistry of Cenozoic basalts from anhui , jiangsu and Shandong Provinces
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锆石Hf同位素组成的LAM-MC-ICPMS精确测定
Precise analysis of zircon Hf isotopes by LAM MC ICPMS
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负热电离质谱法测量Os同位素组成的质量分馏校正
Mass Fractionation Correction of Osmium Isotopic Compositions in Negative Thermal Ionization Mass Spectrometric Measurement
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讨论了珊瑚礁中硼同位素组成与硼含量、pH值、生成年代等参数的关系。
A discussion is given for the rela-tion among boron isotopic composition , pH value , boron concentration and age .
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南海第四纪海水Sr同位素组成演化
Quaternary Sr isotopic records of the seawater in the South China Sea
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辽西义县萤石矿床Sr同位素组成及成因
Sr Isotopic Composition and Genesis in Yixian Fluorite Deposit
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结果表明,该岩基的Ph、Sr同位素组成较好地符合三元混合模式。
It is shown that the Pb and Sr isotopic compositions are consistent with the three-component mixing model .
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南岭中段主要锡矿床He、Ar同位素组成及其意义
He and Ar Isotopic Components of Main Tin Deposits from Central Nanling Region and Its Signification
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冲绳海槽Jade热液区海底块状硫化物的Os同位素组成
O_s isotopic compositions of seafloor massive sulfides from the Jade hydrothermal field in the Okinawa Trough
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基于碳酸盐矿物及本区浅层CO2的同位素组成对比分析,并结合浅部储层成岩作用与CO2的相互关系,认为CO2可能来自第三系钙质泥岩。
The correlation of isotopic constitution and the relations between diagenesis and CO2 indicate that CO2 mainly derived from Tertiary Ca-Mud rocks .
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中国阿尔泰造山带花岗岩Pb同位素组成特征:幔源成因佐证及陆壳生长意义
Pb Isotopic Composition of Granitoids from the Altay Orogen ( China ): Evidence for Mantle-derived Origin and Continental Growth
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其地球化学特征表现在烃类的组成、C6&C7的轻烃组成及同位素组成等方面有着明显的不同。主体为高成熟的腐泥型气,与海相原油密切共生;
The geochemical characteristics of natural gas exhibit a great variations with respect to composition of hydrocarbon , C_6 & C_7 light hydrocarbon , isotope and so on .
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而侵入岩中的N2含量和氮同位素组成更多地反映了地壳中含氮物质浓度及同位素组成特征。
But for the intrusive rocks , the nitrogen content and isotope compositions better reflect the content and isotope compositions of nitrogen-bearing matter in the crust .
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西秦岭铀矿床热液石英Pb同位素组成及其应用
Pb isotope compositions of quartz forming in U-bearing hydrothermal solution and their application to uranium deposits in the western Qinling
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北京房山侵入岩体:微量元素、稀土元素及Sr同位素组成对其成因的制约
Fangshan Intrusion , Beijing : Constraints from Trace and Rare Earth Elements as well as Sr-Isotope Composition
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桂林地区44ka洞穴石笋碳酸钙(盐)δ~(13)C的同位素组成与大气CO2浓度估算
The δ ~ ( 13 ) C Isotopic Composition of Cave Stalagmite Carbonate and the Estimation of the Atmospheric CO_2 Concentration Since 44 ka in Guilin Area
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S、H、O、Pb同位素组成表明成矿物质和成矿流体来自岩浆热液。
S , H , O and Pb isotopes show that the ore-forming fluid and ( metallogenic ) material come from magmatic hydrothermal fluids .
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这些Sr同位素组成的差别反映了平原中水流受区域地质条件控制。
The difference in Sr isotope composition reflects the regional geological control of water flow in the plain .
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西大别超高压榴辉岩中石英脉锆石年龄和Hf同位素组成
Zircon U-Pb age and Hf isotope composition of a quartz vein in ultrahigh-pressure eclogite from the western Dabie orogen
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内蒙古大青山地区早前寒武纪变质岩的锆石Hf同位素组成和稀土模式
Hf Isotope Composition and REE Pattern of Zircons from Early Precambrian Metamorphic Rocks in the Daqing Mountains , Inner Mongolia
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成矿流体的He、Ar同位素组成特征反映了成矿流体主要来源于地壳。
Helium and argon isotope compositions of fluid inclusions show that the ore - forming fluids are mainly derived from the crust .
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钙质生物壳的微量元素组合和Sr,Nd同位素组成是识别海底混合源沉积物中生物源物质相对贡献的重要参数。
Trace elemental associations and Sr , Nd isotopic compositions are of important for recognition of biogenic material from mixed marine sediments .
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冲绳海槽中部Jade热液活动区中海底热液沉积物的硫同位素组成及其地质意义
Sulfur isotopic composition of seafloor hydrothermal sediment from the Jade hydrothermal field in the central Okinawa Trough and its geological significance
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安徽铜陵新桥铜-金矿床的He、Ar同位素组成及其意义
Origin of ore-forming fluids of the Xinqiao Cu-Au deposit in the Tongling mineral district , anhui : evidence from he and AR isotopes
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本次研究测试了该矿床中与锡石硫化物共生的萤石的Sr和Nd同位素组成。
In this study , Sr and Nd isotopic compositions of fluorites coexisting with cassiterite and sulfides from the ore veins were analyzed .