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STUDY ON THE EVIDENCE OF DISASTER AT THE ARCHAEOLOGICAL RUINS-EARTHQUAKE, VOLCAIC ERUPTION AND WAR

考古遗址灾难证据研究——地震、火山爆发和战争

基本信息

批准号：
17300289
负责人：
SAKAI Hideo
金额：
$ 7.55万
依托单位：
University of Toyama
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2005
资助国家：
日本
起止时间：
2005 至 2007
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-17300289/
关键词：
remanent magnetization paleo-earthquake sand dyke at the earthquake archaeomagnetic dating heating history of remains evidence of war 考古学地球電磁気地球化学自然災害環境変動年代推定

项目摘要

There are many ancient remains and remnants suffered from the natural disasters. It is important to find the evidence of natural disaster at the archaeological sites, and the collaborative research is planned among natural sciences and archaeology.We studied the sand dyke at the archaeological sites. To date the sand dyke formed at the past earthquake, the archaeomagnetic method was developed. By using the method for the sand dyke at Ishizuka site in Toyama prefecture, we successfully determined the Jogan earthquake in 8th century.The sand dyke found at the Uchiide site near Toyama Bay shows the age of AD 1450 ± 50, however there have not been formerly reported earthquakes at 15th century in Toyama Prefecture. After our study, the ancient document is found which suggests the occurrence of this earthquake near Uchiide site. That is, the magnetic study clears the unknown paleo-erathquake from the archaeological sites. By the ground penetrating radar survey, the supply of sand dyke originated from the sand layer 1.5-2m under the surface plane.At the Gushikawajo castle site in Okinawa prefecture, we studied the remanent magnetization of the limestone forming stone wall of caste. The results indicate that the limestone was heated up to 350 degrees centigrade, which supports the historical evidence that the castle was burnt in a fire at the war in 16th century.At the archaeological ruins affected by volcanic disaster, to know the subjected heating influence by eruptions is valuable. Mt. Tarumae in Hokkaido is the active volcano and frequently caused the damage on the archaeological ruins of Ainu. We conducted the magnetic study on the pumice fall and/or pyloclastic flow of Mt. Tarumae at the area a few km from the crater, and found that the temperature of the eruptions at their landing is fairly high.

这里有许多遭受自然灾害的古代遗迹和遗迹。在考古遗址发现自然灾害的证据是很重要的，自然科学和考古学计划进行合作研究。我们研究了考古遗址的沙堤。为了确定上一次地震时形成的沙堤的年代，发展了考古磁法。利用富山县石冢遗址的沙堤方法，成功地确定了8世纪的Jogan地震。在富山湾附近的Uchiide遗址发现的沙堤的年龄为公元1450±50年，而富山县15世纪的地震尚未见报道。经过我们的研究，发现了一份古代文献，它表明这场地震发生在内溪德遗址附近。也就是说，磁学研究从考古遗址中清除了未知的古地震。通过探地雷达探测，沙堤的补给主要来源于地表以下1.5-2m的砂层。在冲绳县古石川町城堡遗址，我们研究了形成种姓石墙的石灰岩的剩余磁化。结果表明，石灰石被加热到350摄氏度，这支持了16世纪战争中城堡被大火烧毁的历史证据。在受火山灾害影响的考古废墟中，了解火山喷发对热量的影响是有价值的。Mt.Mt.北海道的Tarumae是活火山，经常对阿伊努考古遗址造成破坏。我们对浮岩的落差和火山碎屑流进行了磁学研究。在距离陨石坑几公里处的塔鲁美地区，发现它们着陆时喷发的温度相当高。