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- The meteoric origin of geothermal water in study area is evidenced by its environmental isotope composition. 摘要環(huán)境同位素研究結果表明，研究區地熱水為大氣降水成因。
- Diet composition hada large effect on stable carbon isotope composition of cattle tissues. 飼料對牛組織中碳同位素組成的影響遠大于牛品種對它們的影響；
- OXYGEN ISOTOPE COMPOSITION OF ANHYRITE IN EARLY STAGE VEINS, MINRAL PARK PORPHYRY SYSTEM, WALLAPAI MINING DISTRICT, ARIZONA, U. S. A. 美國Wallapai礦區Mineral Park斑巖型礦床早期礦脈中硬石膏的氧同位素組成
- This paper analysed the carbon and oxygen isotope composition of brachiopods fossils from the Devonian Period in Sichuan Province. 本論文對來(lái)自四川龍門(mén)山泥盆紀的腕足化石進(jìn)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. 對海水中鋨的濃度、滯留時(shí)間 ,以及現代海水的鋨同位素組成進(jìn)行了精確測定 ;
- Based on the study of chemical composition and isotope composition of galena,the paperdiscussed the genetic-type of the deposit. 通過(guò)對礦床中方鉛礦的化學(xué)成分特征對比分析及同位素組成特征的研究，闡述了礦床的成因類(lèi)型。
- Yi X F, Li L X, Zhang X A, Zhao L, Li M C.Influence of artificial food on stable carbon and nitrogen isotope composition of Plateau Pikas. 易現峰;李來(lái)興;張曉愛(ài);趙亮;李明財.;人工食物對高原鼠兔穩定性碳和氮同位素組成的影響
- Isotope composition shows multi-stage minerlization,multi-source fluid and high thermeral current value of petrological environment. 穩定同位素組成顯示成礦具多期性，流體具多源性，成巖環(huán)境熱流值高；
- Then the stable carbon isotope composition of PAH series such as alkyl naphthalene and alkyl phenanthrene in crude oil samples of Tuha basin were determined on GC-IRMS. 并通過(guò)色譜-同位素比值質(zhì)譜（GC-IRMS）技術(shù)對吐哈盆地原油中烷基萘和烷基菲等系列化合物的碳同位素組成進(jìn)行測定。
- Research on chemical components and isotope composition of carbon and hydrogen of natural gases from the Tarim basin shows that all discovered gases in this basin are thermogenic. 天然氣的組分和碳、氫同位素組成特征研究表明塔里木盆地已發(fā)現的天然氣均為熱解氣。
- Based on researching of the age, rock types genesis, gold content and the stable isotope composition of the complex, the relation between the deposit and the complex is discussed. 本文通過(guò)對雜巖體的成因、成巖時(shí)代、巖石類(lèi)型以及巖體的含金性和部分同位素的特征分析，探討了巖體與礦床的成巖關(guān)系。
- Nd isotope composition, however, is relatively stable during the hydrothermal fluid_rock interaction, and hence can serve as a tracer for magmatic origin of ore-forming fluids. 而釹同位素則相對穩定，可作為蝕變侵入體巖漿起源的示蹤劑。
- This paper reviewed the effect of environmental factors such as light, temperature, CO2, water, nutrient, salinity, air pollutants on stable carbon isotope composition in plants. 本文綜述了光照、溫度、水分、二氧化碳、礦質(zhì)營(yíng)養、鹽分和大氣污染物等環(huán)境因素對植物穩定碳同位素組成影響方面的研究進(jìn)展。
- The Anqing copper deposit has a complicated sulfur isotope composition ,which can not be explained by the variations of a single sulfur source or the physico-chemical conditions. 安徽安慶銅礦床的硫同位素組成復雜，不能用單一硫源或物理化學(xué)條件的變化來(lái)解釋。
- How could such a change in isotopic composition have come about? 同位素的組成有這樣的變化，究竟是如何發(fā)生的？
- Wei Juying and Shangguan Zhiguan.Oxygen isotope composition of magnetite and hematite from Bayan Obo Fe ore deposits in Inner Mongolia.Scientia Geologica Sinica,1983,(3):217-224. [8]魏菊英;上官志冠.;內蒙白云鄂博鐵礦床中磁鐵礦和赤鐵礦的氧同位素組成
- The stable variation of lead isotope compositions suggests that it belongs to normal lead. 鉛同位素組成變化不大,屬正常鉛。
- WHAT CAN WE LEARN FROM OXYGEN AND HYDROGEN ISOTOPE COMPOSITIONS OF TREE-RING CELLULOSE IN HIGHER PLANTS? 樹(shù)年輪纖維素穩定同位素比率的生態(tài)學(xué)意義?
- The disease is still in its primary stage. 這疾病仍然在初發(fā)階段。
- Using GC/C/MS online carbon isotope analytic technic,abundant imforma- tion about single molecular carbon isotope composition can be taken from micro-samples(chromatographical scale). GC/C/MS 在線(xiàn)碳同位素分析技術(shù),能夠從微量樣品(色譜量級)中獲得豐富的單分子碳同位素組成信息。
