摘要
康庄子组Ｒｂ－Ｓｒ测年为１５６５±１１０Ｍａ和４８９±７３Ｍａ。前者与华北地层区内相邻地层在年龄上衔接，有利于区域地层划分与对比；后者同关门山铅锌矿床两阶段铅上交点年龄相近，恰佐证关门山铅锌矿床矿化发生的时间。１７９６±７ＭａＳｍ－Ｎｂ等时线年龄，１５６５±１１０ＭａＲｂ－Ｓｒ等时线年龄和１４０２±２１１ＭａＲＬ－Ｓｒ等时线年龄在地层上是衔接的，对区域地层划分与对比具有重要意义。
Rb-Sr age of Kangzhuangzi Formation was determined to be 1565±10Ma and 489±73Ma. The former was identicle with the age of adjacent strata in North China stratigraphicarea,which was conductive to regional stratigraphic sub-division and correlation;the latterwas near the intersection age of two stage Pb from Guanmenshan Pb-Zn deposit,and it pro-vided supplementary province for determining the mineralization time of Guanmenshan Pb-Zndeposits, Sm-Nb iso-chon age of 1796±7Ma,Rb-Sr iso-chron age of 1565±110Ma and 1402±211Ma shew they were continual in strata sequence,it was important for regional stratasubdivision and correlation.
关键词
康庄子组
地层
铷
锶
年龄
寒武纪
Rb-Sr age Kangzhuangzi Formation Fanhe River
