水相沉积物石英Ti心ESR测年可靠性初探

被引:11
作者
刘春茹 [1 ]
尹功明 [1 ]
高璐 [1 ]
李建平 [1 ]
林敏 [1 ,2 ]
机构
[1] 中国地震局地质研究所,地震动力学国家重点实验室
[2] 中国原子能科学研究院剂量测试部
关键词
水相沉积物; ESR; 测年; Ti心;
D O I
暂无
中图分类号
P597.3 [];
学科分类号
070902 ;
摘要
本文以北京顺义高丽营钻孔样品为测试对象,对其石英Ti心ESR信号进行了测试。结果表明,高丽营剖面B/M界限样品的ESR年龄为(861±89)ka,与已知古地磁结果偏差≤10%;用同样方法和参数测试不同深度的高丽营钻孔样品,其ESR年龄随样品深度增加而变老,符合水相沉积序列特征。以上研究结果表明,利用石英Ti心ESR法至少可以获得距今780ka以来的水相沉积物的年龄。
引用
收藏
页码:110 / 112
页数:3
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