...此外,锆石化学性质稳定,较难与环境中的物质发生化学反应,所以自身晶格结构的完整得以保留,最终成为了脆弱的铀-铅(U-Pb)衰变体系成功的守护者,使之在时光的变迁中长时间留存下来,从而成为跨越百万纪年的“石时计”。
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zircon u-pb dating pb测年 ; Pb年龄
zircon U-Pb age 锆石U ; Pb年代
u-pb dating pb定年 ; Ph定年 ; pb年龄 ; pb年代学
锆石U-Pb年龄 zircon U-Pb age ; zircon U-Pb dating
zircon u-pb 锆石u
u pb dating upb定年
u-pb年龄 u-pb age
Zircon U-Pb ages 锆石U
zircon u pb age 锆石u
When dating zircon U-Pb ages by SHRIMP, choosing the target points of zircon is very important as they directly affects the reliability and accuracy of the results.
应用离子探针shrimp测定锆石铀-铅年龄时,锆石选点至关重要,它将直接影响实验结果的可靠性和准确性。
Presence of Rn, U and Pb in environment is a ubiquitous hazard to human health.
环境中的氡、铀和铅等有害微最元素严重危害人类健康。
The plate is enriched in U and Th revealed by Pb-isotopic study, which plays an role of essential prerequisite for the formation of U province.
铅同位素研究揭示,该板块富铀、钍,从而为铀矿省的形成提供了必不可少的地质前提。
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