The principle, analytical procedures and applications of Rb-Sr dating for minerals and rocks are described. Sr was separ......

四堡群是华南最古老的地层单位之一,出露于桂黔交界地区,而以桂北九万大山一带分布面积最大。它以富产锡多金属矿而著称。四堡群自......

通过对闪锌矿铷-锶同位素等时线形成机制的讨论,若为同源、同期、待测同位素封闭的体系,因混合形成的直线为等时线具有定年意义,但......