济阳坳陷第三系地层中自生磷灰石的裂变径迹年龄测定  

FISSION TRACK DATING OF AUTHIGENIC APATITE FROM TERTIARY SEDIMENTS IN THE JIYANG DEPRESSION, SHANDONG

作　　者：戴贤忠 杜韫华 王庆隆 万景林[2] 

机构地区：[1]胜利油田地质科学院,东营257015 [2]国家地震局地质研究所,北京100029

出　　处：《地质科学》1993年第3期283-287,共5页Chinese Journal of Geology(Scientia Geologica Sinica)

摘　　要：经电镜分析发现,胜利油田主要产油(气)的第三系沉积岩中存在少量自生磷灰石,其特征为:具有自形或半自形;颗粒周围无风化晕圈;沿大的裂隙也无风化晕带。作者采用裂变径迹法对该自生磷灰石作了单颗粒年龄测定。实践证明,裂变径迹法测定年轻沉积地层的年龄是可行的。Fission track age of authigenic apatite from twentytwo samples of the Jiyang Depression have been determined and the results was compared with of paleomagnetic and K-Ar age data. The agreeement between the age data indicates that the method is feasible for age determination of sediments. The paper also suggested a new division of Guantao basal conglomerate.

关 键 词：裂变径迹 退火带 地层 磷灰石 年龄 

分 类 号：P578.922[天文地球—矿物学]