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Tephrostratigraphical interpretation of historical eruptions proved by historic sites and historical sources and reconstruction of paleoenvironment

古迹史料证实的历史火山喷发的地层解释与古环境重建

基本信息

批准号：
15300309
负责人：
SUGIHARA Shigeo
金额：
$ 9.98万
依托单位：
Meiji University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2003
资助国家：
日本
起止时间：
2003 至 2005
项目状态：
已结题

项目摘要

In this study, we conducted the drilling survey in order to investigate the tephrostratigraphy of historical eruptions proved by different archaeological sites and historical documents (or sources) in Japan and to reconstruct the paleoenvironment. In the case of volcanoes in the Izu Islands, it has been confirmed that the volcanic products from Niijima, Miyatsukayama, Kozushima and Tenjosan are distributed in south Kantou and Tokai area, based on the result of mineral analysis, refractive index measurement and elemental analysis of tephra (using X-ray Fluorescence Spectrometer). In the central to northern part of Kyusyu, we conducted the field survey on the area around Kujusan in order to understand the stratigraphy of tephra and to determine the age. In the southern part of Kyusyu, we identified and correlated the tephra from both Sakurajima and Kikai caldera, which is now distributed around Kokubu lowland in the north of Kagoshima bay, in order to reconstruct the paleoenvironment of the lowland. This study really contributed to better understanding of stratigraphic relationship between the tephra and the archaeological sites or artifacts throughout Japan and also advanced the clarification of historical eruptions recorded in the ancient documents. The result of this study was presented by oral presentation or poster session in several related academic conferences in addition to the publication of paper in some scientific journals.

在这项研究中，我们进行了钻探调查，以调查火山灰地层的历史喷发证明不同的考古遗址和历史文件（或来源）在日本和重建古环境。在伊豆群岛的火山中，根据火山灰的矿物分析、折射率测量和元素分析（使用X射线荧光光谱仪）的结果，确认了新岛、宫冢山、小津岛和天城山的火山产物分布在关东南部和东海地区。在九州中部至北方，我们对九州山周围地区进行了实地调查，以了解火山碎屑的地层并确定其年龄。在九州南部，我们对现在分布在鹿儿岛湾北部国分低地周围的樱岛破火山口和纪海破火山口的火山灰进行了识别和对比，以重建低地的古环境。这项研究确实有助于更好地了解火山灰与日本各地考古遗址或文物之间的地层关系，也有助于澄清古代文献中记录的历史喷发。本研究的结果除了在一些科学期刊上发表论文外，还在一些相关的学术会议上以口头报告或海报会议的形式进行了介绍。