| File | |
| Title |
中海北東部の湖底地形・地質の再検討 : 湖底環境修復への課題
|
| Title |
Reexamination of bottom topography and sediments in the northeastern part of Lake Nakaumi
|
| Title Transcription |
ナカウミホクトウブノコテイチケイチシツノサイケントウ コテイ カンキョウ シュウフク ヘノ カダイ
|
| Creator |
Tokuoka Takao
Fukita Ayumi
Nakamura Tadashi
Anma Kei
Nishimura Kiyokazu
|
| Source Title |
Laguna : 汽水域研究
|
| Volume | 13 |
| Start Page | 29 |
| End Page | 42 |
| Journal Identifire |
ISSN 21852995
|
| Descriptions |
Sandbar sediments are underlain in the bottom of the northeastern part of the Lake Nakaumi. These are a part of the Yumigahama Sandbar, and assingned to have been formed by the Jomon Transgression in the Holocene Age. The data of echo-sounding surveys by Yuniboom in 1986（summarized by Mitsunashi and Tokuoka, 1990）and SH 20 by Fukita et al. （2001）were reexamined, and SH 20 survey along the coastal area was newly carried out in 2005. The sand body has a thickness up to 20 m, and are interfingered with Holocene muddy sediments which is extensively distributed in the bottom of Lake Nakaumi. The natural gentle slopes of the lake bottom which reflect original sandbar surface have been completely replaced by the Nakaumi Reclamation Project, etc. to the rugged bottom surfaces not suitable for the survival of aquatic organisms.
|
| Subjects |
Lake Nakaumi
Yumigahama sandbar
echo-sounding survey
reclamation
mitigation
|
| Language |
jpn
|
| Resource Type | departmental bulletin paper |
| Publisher |
島根大学汽水域研究センター
|
| Date of Issued | 2006-06 |
| Publish Type | Version of Record |
| Access Rights | open access |
| Relation |
[NCID] AN10439529
|
