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为了探讨断层崩积楔光释光测年的可行性,我们对山西忻定盆地两个探槽(西田探槽和南峪口探槽)的样品进行光释光测年分析,研究得出:对于年轻的样品采用中颗粒(63～90μm)单片再生法(SAR)定年,利用等效剂量分布直方图和累积频率图来判断其晒退情况,选择晒退较好的样品获得崩积楔的年龄;对于较老的样品采用细颗粒(4～11μm)简单多片再生法(SMAR),通过密集采样和系统数据综合分析而获得崩积楔的年龄。
In order to investigate the feasibility of optical dating of fault-wedged wedge, we analyzed the optical-optical dating of the two trenches in Xinding basin (Xitian trough and Nan-yu kou trough), and found that: For young samples, the medium particle (63 ~ 90μm) monolithic regeneration (SAR) dating was used to determine the sunburn recovery using the equivalent dose distribution histogram and cumulative frequency chart. . For the older samples, simple multi-particle regeneration (SMAR) with fine particles (4 ~ 11μm) was used to obtain the age of the boulders by intensive sampling and comprehensive analysis of system data.