(Article of periodic en Anglais - 1997)

Document title

Biogenic silica record in Lake Biwa of central Japan over the past 145,000 years

Authors(s) and Affiliation(s)

JULE XIAO⁽¹⁾ ; INOUCHI Y. ; KUMAI H. ; YOSHIKAWA S. ; KONDO Y. ; TUNGSHENG LIU ; ZHISHENG AN ;
⁽¹⁾Inst. Geology, Chinese Academy of Sciences, beijing, CHINE

Abstract

The record of the biogenic silica flux (BSF) in Lake Biwa reflects changes in diatom productivity in the lake and provides information regarding changes in paleoclimatic conditions. The BSF record of Lake Biwa demonstrates 5 periods over the past ca. 145,000 yr and 5 intervals. Time series of the BSF record can be correlated with the record of biogenic silica content in Lake Baikal and the marine oxygen isotopes stages 1 through 6. Furthermore, the BSF values varied with much higher amplitude during the last interglaciation than during the last glaciation