遺跡の文化層の絶対年代を決定する光ルミネッセンス年代測定法の確立

研究了预热、退火和光学破裂对光致发光的影响，得到了常规测量的最佳条件。细粒和粗粒OSL技术分别应用于若干考古遗址的文化层。光释光测年结果具有以下特点：与TL和考古年代的比较：中岛山遗址、原asekasahari遗址、Sodehara3遗址和Kanmuri遗址。即使对麻药样品定年，如果麻药是次生矿床，OSL技术比TL技术更适用。是否对OSL的依赖性不系统，没有获得有意义的数据。Kamitakamori遗址、Sodehar3遗址的SD-2层和Kaminohara遗址的年龄大多低于TL和考古年龄。在整个研究期间，获得了以下结果：1。2.细粒化技术的建立；对再沉积时被周围土壤污染的白蚁样品，用光谱学方法测定了样品的年代。OSL技术已经应用于旧石器时代到绳纹时代的8个遗址。总体而言，除了特殊情况外，OSL测年技术在大多数文化层都得到了成功的应用。石英层粒溶蚀测年存在剂量依赖性不系统的问题。这应该在不久的将来得到解决。

Effects of preheating, annealing and optical breaching on OSL were investigated to get the optimal conditions for routine measurements. Fine grain and coarse grain OSL techniques were applied to cultural layers of several archaeological sites. The features of the OSL dating results are as follows :1.Comparatible with TL and archaeological agesNakajima-yama site, Harasekasahari site, Sodehara3 site and Kanmuri siteEven dating of tephra samples, OSL technique is more suitable than TL one in case that the tephra is a secondary deposit.2.Does dependence of OSL is not systematic and meaningful data was not obtained.Kamitakamori site, SD-2 Layer at Sodehar3 site and Kaminohara siteMost of them showed younger age than TL and archaeological ages.Throughout the research term, the following results have been obtained :1.Fine grain technique was established,2.The tephra sample which was contaminated with surrounding soil when it redeposited is successfully dated by OSL technique.3.OSL techniques have been applied to 8 sites ranging Paleolithic to Jomon periods.As a whole, OSL dating technique is successfully applied to most of the cultural layers except special cases. Concerning the OSL dating using quartz course grains, dose dependence is not systematic in some case. This should be solved in near future.