There are 37 lectures, major headings are geochronology, radiogenic isotope geochemistry and stable isotope geochemistry.
这里有37讲,主质年代学、放射性同位球化学和稳定同位球化学。
By using the approach of morphostructure and tectonic chronology analysis, neotectonic activity evidences and characteristics as well as its ralation to uranium mineralization were researched.
通过构造貌和构造年代学的分析法,其表现特徵和运动特徵及其与铀成矿之间的关系进行研究。
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It has been dated, using " uranium-lead" geochronology dating techniques.
用“铀铅”地质代学技术测定了它的代。
So this is a little trick I learned, oh god, in the '80s.
所以这是我上世纪80代学到的一个小技巧。
Yeah, this guy's either an amateur or he studied psychology in the eighties.
这家伙要么是业余爱好者 要么80代学过理学。
VALERIE TROUET: I'm professor of dendrochronology at the University of Arizona.
瓦莱丽·特鲁埃特:我是亚利桑那大学的树木代学教授。
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