Abstract
Based on the ecological spectra of the diatoms grouped into marine, brackish and freshwater, sediments from Loc. 2 were classified into four diatom zones : (1) Transitional Zone 3 (Tr-3), characterized by the alternation of marine and freshwater species as dominant. (2) Marine Diatom Zone 2 (MD-2) reflecting the small transgression at c.a. 3, 000 yBP is dominated by marine species. (3) Transitional Zone 4 (Tr-4) including remarkable changes in sedimentary environment is subdivided into Tr-4a and Tr-4b. (4) Freshwater Diatom Zone 3 FD 3) is dominated by freshwater species and may reflect the lowering stage of sea level during the Yayoi Age. Each zone is considered to be closely related with the development of Lake Kamo-ko caused by Holocene sea-level changes.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Japanese Journal of Limnology (Rikusuigaku Zasshi)
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
