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Title Transcription
ニホン カクチ ノ エンガンセイ キスイ コショウ ニオケル カンシンセイ コウハン ノ エンブン ヘンドウ
Title Alternative
Salinity Changes During the Late Holocene at Coastal Brackish Lakes in Japan
File
language
jpn
Author
Kashima, Kaoru
Description
To confirm the influence by the global climatic changes and sea level fluctuations to lake environment, we obtained undisturbed vertical core sections of sediments using drilling equipments at several brackish lagoons in Japan. The diatom-inferred salinity reconstruction for these brackish lagoons provides an excellent example of long-term salinity measurements during the Holocene.
At Lake Hamana and Lake Kasumigaura, a series of environmental oscillations with 700-1200 years intervals between fresh water, brackish to marine episodes followed after the eruption of Akahoya Ash (6300y. BP). They have presumably varied substantially due to sea level fluctuations within the Late Holocene.
On the other hand, at Lake Shinji, a very closed tidal flat, where diatom valves are rarely preserved in sediments, continued for thousands of years after the eruption of Akahoya Ash (6300y. BP).
Subject
brackish lake
diatom
environmental change
Holocene
salinity
Journal Title
Laguna : 汽水域研究
Volume
8
Start Page
1
End Page
14
ISSN
21852995
Published Date
2001-03
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