权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Luminescence dating of loam deposits in Paleolithic sites

旧石器时代遗址中壤土沉积物的发光测年

基本信息

批准号：
13680177
负责人：
GANZAWA Yoshihiro
金额：
$ 2.3万
依托单位：
Hokkaido University of Education
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2001
资助国家：
日本
起止时间：
2001 至 2002
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13680177/
关键词：
TL IRSL dating Paleolithic site loam deposit aeolian clay layer 風成塵堆積物光ルミネセンス

项目摘要

The widespread aeolian clay layers, so-called "loam" which cover the land surface of Japan's islands were investigated from the viewpoints of the long-term influence of aeolian dust transported from inland China since the Last internal-Glacier age. I have also been focusing on the deposits in which many Paleolithic remains were preserved. The clay layers, compared of fine particles of quartz and feldspars, are favorable material for TL/IRSL dating because they had been exposed to sunlight sufficiently through transportation process from inland China to Japan.An investigation on TL/IRSL dating of poly-mineral 4-11 micron meter component of aeolian deposits, so called "loam" were attempted for a Paleolithic site, Pirika in Hokkaido.A new designed apparatus inserted BG-39 and U-340 filters were employed for the equivalent dose derived from TL/IRSL determination. Annual dose rates of samples, measured by both AASD and NAA, indicated around 2.0-3.8mGy/year.The age less than 50ka coincided with the estimated ages derived from the intercalated tephra layers. The experimental ages indicated that TL/IRSL dating would contribute to age determination of Paleolithic sites.

从末次内冰川时代以来从中国内陆输送的风沙的长期影响的角度，对覆盖日本列岛陆地表面的广泛分布的风积粘土层（所谓的“壤土”）进行了研究。我还一直关注保存有许多旧石器时代遗迹的矿床。与石英和长石的细颗粒相比，粘土层是 TL/IRSL 测年的有利材料，因为它们在从中国内陆到日本的运输过程中充分暴露在阳光下。对风成沉积物的多矿物 4-11 微米成分（所谓的“壤土”）进行 TL/IRSL 测年研究，尝试在旧石器时代遗址 Pirika 进行。北海道。采用插入 BG-39 和 U-340 过滤器的新设计装置来测定 TL/IRSL 得出的等效剂量。通过AASD 和NAA 测量的样品年剂量率表明约为2.0-3.8mGy/年。小于50ka 的年龄与夹层火山灰层推算的年龄一致。实验年龄表明 TL/IRSL 测年有助于旧石器时代遗址的年龄确定。