There are 37 lectures, major headings are geochronology, radiogenic isotope geochemistry and stable isotope geochemistry.

这里有37讲，地质年代学、放射性同位素地球化学稳定同位素地球化学。

The lead isotope study shows that ores of the Mujiazhuang copper deposit and the host rocks contain very high radiogenic lead.

研究表明，穆家石铅近围岩岩石铅具有极高的放射性成因铅特点。