| ID | 84176 |
| Title Transcription | シコク サンチ カラ ケンシュツ サレタ テフラ ニ モトズク サンチ シャメン ノ チョウキ アンテイセイ
|
| Title Alternative | Long term stability of mountain slope based on tephrochronology in Shikoku Mountains, Tokushima, Japan
|
| Author |
Nishiyama, Ken-ichi
Laboratory of Geology, Institute of Socio-Arts and Sciences, University of Tokushima
Tokushima University Educator and Researcher Directory
KAKEN Search Researchers
Tamura, Toshiyuki
Nita Consultant Co., Ltd
|
| Keywords | tephra
K-Ah
AT
Shikoku mauntains
slope failure
|
| Content Type |
Departmental Bulletin Paper
|
| Description | Formative processes of mountain slope in Shikoku Mountains are discussed based on tephrochronology. We
carried out identification of tephra layers in colluvial deposits at mountain slope, Shikoku Mountains, Tokushima Prefecture. These tephras named locally Ohyohchi, Nakaue-1 and -2 tephras. Ohyohchi tephra and Nakaue-1 tephra are correlative with AT tephra from South Kyushu, and Nakaue-2 tephra is correlative with K-Ah tephra from South Kyushu, in terms of the similarities of petrography, refractive index of volcanic glass. The occurrence of these tephra layers shows that K-Ah tephra overlies colluvial deposits including AT tephra. Thus, recurrence interval of slope failure was estimated to be more than ten thousand years. |
| Journal Title |
徳島大学総合科学部自然科学研究 = Natural Science Research, The University of Tokushima
|
| ISSN | 09146385
|
| NCID | AN10065859
|
| Volume | 25
|
| Issue | 4
|
| Start Page | 21
|
| End Page | 27
|
| Sort Key | 21
|
| Published Date | 2011
|
| EDB ID | |
| FullText File | |
| language |
jpn
|
| departments |
Science and Technology
|
