TROPOSPHERIC EOLIAN DUST ORIGIN OF RED-YELLOW SOILS IN NANSEI-SYOTO

南西京都红黄土对流层风尘成因

• 批准号: 05453156
• 负责人: INOUE Katsuhiro
• 金额: $ 1.98万
• 依托单位: IWATE UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1993
• 资助国家: 日本
• 起止时间: 1993 至 1994
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-05453156/
• 关键词: NANSEI-SYOTO; RED-YELLOW SOILS; EOLIAN DUST; QUARTZ; OXYGEN ISOTOPIC RATIO; CLAY MINERAL; PALEOENVIRONMENT; THE LAST GLACIAL STAGE; 酵素同位体比; 琉球石灰岩

Oxygen and carbon isotopic studies of the Red and Yellow soil Group, Quaternary and Paleozoic phyllite in the Nansei Syoto and piston cores in the Okinawa Trough, the Nansei Syoto Trench, and the Amami Plateau were carried out. The oxygen and carbon isotopic rations of quartz, muscovite and calcite indicated that quartz and muscovite were of eolian dust origin.Analytical data of the Iwate volcano tephra deposits after the fall of the Toya Ash (90-130ka) indicated that eolian dust was mainly deposited 20-34ka and 50-70ka and that the flux of eolian dust during the late period of the Last Glacial age was estimated to be 4cm/1,000 years. The changes of vegetation and climate were also estimated by using opal phytolith composition and eolian dust content.The recent rainwater in the central and northern regions of China shows higher pH values and Ca concentrations than southern region of China. Our data showed that calcite in the eolian dust was consumed to neutralize acidic components in Chinese and Korean rainwater. Recent eolian dust transported from China to Japan contains a small amount of calcite, suggesting that it has a low neutralization capacity to acid rain in Japan.

对南西昭远的红土和黄壤群、第四纪和古生代千枚岩以及冲绳海槽、南西昭远海沟和奄美高原的活塞岩心进行了氧和碳同位素研究。石英的氧碳同位素比值，白云母和方解石表明，石英和白云母是风成尘的产物。岩手火山火山灰沉积物的分析资料（90- 130 ka）表明，风尘主要沉积于20- 34 ka和50- 70 ka，末次冰期晚期风尘通量估计为4cm/1，一千年。根据蛋白石植硅体组成和风尘含量估算了近10年来植被和气候的变化，结果表明，中国中部和北方地区近期雨水pH值和Ca浓度均高于南方地区。我们的数据表明，方解石的风尘消耗中和中国和韩国的雨水中的酸性成分。近代从中国输送到日本的风尘中含有少量方解石，说明其对日本酸雨的中和能力较低。

项目成果

5) Bautista-Tulin, A.T.and Inoue, K.: "Hydroxy-interlayred minerals in Japanese soils influenced by eolian deposition." Soil Sci.Soc.Am.J.59 : (in press).

5) Bautista-Tulin, A.T. 和 Inoue, K.：“受风成沉积影响的日本土壤中的羟基层状矿物。”

井上克弘・張一飛・成瀬敏郎: "東アジア中緯度域における雨水の水質に及ぼす広域風成塵の影響" 日本土壌肥料学雑誌. 65. 619-628 (1994)

Katsuhiro Inoue、Yifei Zhang 和 Toshiro Naruse：“大面积风尘对东亚中纬度地区雨水质量的影响”《日本土壤与肥料杂志》65. 619-628 (1994)。

4) Inoue, K.and Sase, T.: "Paleo-environment history of post-Toya Ash tephric deposits at Iwate Volcano using eolian dust content and phytolith composition." Quatern.Int.Pergamon Press, Oxford. in press.

4) Inoue, K. 和 Sase, T.：“利用风尘含量和植硅体成分研究岩手火山后洞爷灰火山沉积物的古环境历史。”

Bautista Tulin,A.T.& Inoue.K.: "Hydroxy-interlayered minerals in Japanese soils influeuced by eolian deposition" Soil Science Society of America Jaurnal. 59(印刷中). (1995)

Bautista Tulin, A.T. 和 Inoue.K.：“受风成沉积影响的日本土壤中的羟基夹层矿物质”，美国土壤科学学会杂志 59（出版中）。

井上克弘他5名: "南西諸島における赤黄色土壌群母材の広域風成塵起源-土壌,基岩および海底堆積物中の石英,雲母,方解石の酸素および炭素同位体化" 第四紀研究. 32. 139-155 (1993)

Katsuhiro Inoue等5人：“南西群岛红黄色土壤基质的风尘起源——土壤、基岩和海洋沉积物中石英、云母和方解石的氧和碳同位素形成”42。 139-155 (1993)