Paleolimnology of Lake Yamanaka as reflected on particle-size distribution

Authors

  • Danda Pani Adhikari Department of Geology Tri-Chandra Campus Ghantaghar, Kathmandu

DOI:

https://doi.org/10.3126/bdg.v14i0.5437

Keywords:

Paleolimnology, Lake, Yamanaka

Abstract

A 17.63 m long bore-hole core extracted from the deepest part of Lake Yamanaka, one of the Fuji-five Lakes at the northeasternfoot of Mount Fuji, central Japan, composed of sediment with intercalations of scoria fallout deposits. The sediment of the upper11.4 m was investigated for grain-size distribution by using a laser diffraction particle size analyser. The mean grain-size profileshowed various degrees of fluctuations, both short-and long-terms, and the size-frequency distribution revealed unimodal-trimodalmixing of sediments. Changes in lake size and water depth appear to be the main factors affecting the variability in the grain-sizedistribution and properties. The lake level appears low during 7000–5000 cal BP and 2800–1150 cal BP and relatively high during5000–2800 cal BP and 1150 cal BP– present.

DOI: http://dx.doi.org/10.3126/bdg.v14i0.5437

Bulletin of the Department of Geology Vol.14 2011, pp.35-42


 

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How to Cite

Adhikari, D. P. (2011). Paleolimnology of Lake Yamanaka as reflected on particle-size distribution. Bulletin of the Department of Geology, 14, 35–42. https://doi.org/10.3126/bdg.v14i0.5437

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