Surface soil samples were collected in the deserts and Gobi regions of China. The carbonate content and carbon and oxygen isotopic composition were analyzed.
在中国的主要沙漠和戈壁等粉尘源区采集了地表沙或土壤（统称为表土）样品，分析了样品的碳酸盐含量和碳酸盐的碳氧同位素组成。
Hydrogen and oxygen isotopic composition of the fluid inclusion in quartz indicates that the water in ore-forming fluid was derived meanly from mixture water of meteoric and magmatic.
石英流体包裹体氢氧同位素组成表明，成矿流体中的水主要来源于大气降水和岩浆水的混合。
Based on the carbon and oxygen isotopic composition and rare earth element (REE) patterns, the origin of the Dabaoshan deposit is considered to be related to the sea-floor thermal events.
根据含矿层序中的碳、氧同位素组成和稀土元素(REE)模式，认为大宝山矿床是海底热事件的结果。
They would leave subtle clues in the isotopic composition of the limestone by shifting the ratios of light to heavy carbon and oxygen atoms in its calcium carbonate.
因为如果是那样的话，阳光将会被转换成大量的碳、氧原子保存到石灰岩中的碳酸钙里，而事实却是，岩层的同位素组成（Isotopic composition）中没有留下任何蛛丝马迹。
The trick they used to do this was to look at the isotopic composition of the oxygen in the wood of local trees.
他们所使用的办法是观测当地树木的木材中的氧同位素组成（isotopic composition）。
The hydrogen and oxygen stable isotopic composition and dissolved gas components of the hot spring (well) water in the southern area of Zhangjiakou are studied.
本文研究了张家口南部地区温泉（井）水的氢氧稳定同位素组成及溶解气体组分特征。
The isotopic composition of oxygen shows that the origin of the ore forming solution was turn from magmatic water in early stage to circulated meteoric water in later stage.
通过氧同位素研究证明了成矿溶液的来源由早期岩浆水转变为晚期大气降水；
The isotopic composition of oxygen shows that the origin of the ore forming solution was turn from magmatic water in early stage to circulated meteoric water in later stage.
通过氧同位素研究证明了成矿溶液的来源由早期岩浆水转变为晚期大气降水；
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