書誌事項
- タイトル別名
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- Fluvial Quartz Flux to Lake Biwa of Central Japan over the Past 145,000 Years.
- Fluvial Quartz Flux to lake Biwa of Cen
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Studies on sedimentary fluxes of quartz grains carried into Lake Biwa, central Japan by the streams and rivers from the surrounding catchments of the lake show that fluvial quartz flux (FQF, g/cm2·103yr) offers direct information on variations of paleoprecipitation in the lake area. Lake Biwa sediments spanning the last ca. 145, 000 years are characterized generally by four main intervals when the FQF values were significantly greater than 2.00 g/cm2·103yr, and five main periods during which FQF values were lower. Three of the peaks with FQF values >2.00g/cm2·103yr occur from ca. 128, 000 to 78, 000yrs BP, and culminated at ca. 122, 000, 101, 000, and 82, 000yrs BP. Another one comprising three narrow peaks concentrated between ca. 48, 000 and 26, 000yrs BP. This interval of triple peaks displays much higher FQF values than during either the preceding or subsequent episodes. The data imply that paleoprecipitation in the lake area was greater during the intervals with high FQF values, which coincide with marine oxygen isotope substages 5e, 5c, and 5a, and stage 3, and was relatively less during isotope stages 6, 4, and 2.
収録刊行物
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- 第四紀研究
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第四紀研究 36 (1), 17-27, 1997
日本第四紀学会
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詳細情報 詳細情報について
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- CRID
- 1390282681472446592
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- NII論文ID
- 10002634363
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- NII書誌ID
- AN0034136X
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- ISSN
- 18818129
- 04182642
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- NDL書誌ID
- 4159550
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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