Studies on a high-precision chronology for tephras and palaeoenvironments in southern Kyushu since 30,000 cal BP

2014 Fiscal Year Final Research Report

• Project/Area Number: 24501292
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Geography
• Research Institution: Kagoshima University
• Principal Investigator: MORIWAKI Hiroshi 鹿児島大学, 法文学部, 教授 (70200459)
• Co-Investigator(Kenkyū-buntansha): OKUNO Mitsuru 福岡大学, 理学部, 教授 (50309887) ; NAGASAKO Toshiro 鹿児島大学, 教育学部, 准教授 (70709518)
• Co-Investigator(Renkei-kenkyūsha): OHIRA Akio 宮崎大学, 教育学研究科, 准教授 (00262824)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: テフラ / 海岸環境 / 古環境統合化 / 最終融氷期 / 鹿児島湾 / 南九州 / 完新世 / 更新世末

Outline of Final Research Achievements

It is known that various regional palaeoenvironmental changes dominated by large climatic changes occurred in the past 30,000 years including the stage of rapid changes in the past 15,000 years. On the basis of the chronology for volcanic ash beds which provide isochrone suitable for palaeoenvironmental chronology and numerously distributed in southern Kyushu, we made precise chronology for the changes in palaeoenvironments of southern Kyushu and tried to correlate them to global high-resolution palaeoenvironmental changes. As a result, we precisely correlated the changes in various palaeoenvironments of the coasts, Kagoshima Bay and marine areas in and around southern Kyushu using volcanic ash beds, and placed them in the global high-resolution palaeoenvironmental changes. Regional integration for the chronology of these palaeoenvironments was improved in southern Kyushu.

Free Research Field

自然地理学