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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
Title Alternative (English)
Reexamination of bottom topography and sediments in the northeastern part of Lake Nakaumi
File
language
jpn
Author
Tokuoka, Takao
Fukita, Ayumi
Nakamura, Tadashi
Anma, Kei
Nishimura, Kiyokazu
Description
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.
Subject
Lake Nakaumi
Yumigahama sandbar
echo-sounding survey
reclamation
mitigation
Journal Title
Laguna : 汽水域研究
Volume
13
Start Page
29
End Page
42
ISSN
21852995
Published Date
2006-06
NCID
AN10439529
Publisher
島根大学汽水域研究センター
NII Type
Departmental Bulletin Paper
Format
PDF
Text Version
出版社版
OAI-PMH Set
Estuary Research Center
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