2013 Fiscal Year Final Research Report
The Ages of Large Scale Floods and Mud Flows, during the Ladte Holocene on Alluvial Lowlands.
| Project/Area Number |
23501248
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Research Field |
Geography
|
|---|
| Research Institution | Tohoku Gakuin University |
|---|
Principal Investigator |
|
|---|
| Project Period (FY) |
2011 – 2013
|
| Keywords | 沖積平野 / 土砂災害 / 大規模洪水 / 仙台平野 / 古墳時代 / 縄文時代晩期 / 自然災害 |
|---|
| Research Abstract |
The study area is the central part of Tohoku District, facing the Pacific Ocean. Many mega-flood evidences and some debris flows are recognized on the coastal lowland and the adjacent area. Especially, many "Natural Levee and Abandoned Channel Systems" are distributed on the Sendai Coastal lowlands. The "Natural Levee and Abandoned Channel Systems" are the clear evidence of mega-flood events.
In this study, the formative periods of "Natural Levee and Abandoned Channel Systems" and "Large scale Debris flows" were determined by radio carbon method. As the result, two periods, which mega-flood occurred at high frequency, ware determined. They ware 2600-2400 yrBP and 1600-1400yrBP.
|
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
[Presentation] 古津波堆積物の分布2012
Author(s)
松本秀明
Organizer
東北大学大学院環境科学研究科震災フォーラム"いま,そしてその次へ"",第6回テーマ"津波堆積物:過去,現在,そして対策"
Place of Presentation
せんだいメディアテーク (分担講演)
Year and Date
2012-01-18
-
-
-
-
