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Sediment records of Sb and Pb stable isotopic ratios in Lake Qinghai
https://repo.qst.go.jp/records/45956
https://repo.qst.go.jp/records/459566a181ce9-81d5-4837-bb7f-b69f53243137
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2010-12-06 | |||||
| タイトル | ||||||
| タイトル | Sediment records of Sb and Pb stable isotopic ratios in Lake Qinghai | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Xu, Libin
× Xu, Libin× Wu, Fengchang× Zheng, Jian× Xie, Qianli× Li, Huixian× Liao, Haiqing× Zhao, Xiaoli× Guo, Fei× 鄭 建× Ｌｉａｏ Ｈａｉｑｉｎｇ |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | A sediment core in Lake Qinghai in northwest China was collected in 2006. 137Cs and 210Pb activities were analyzed to investigated the chronology of the sediment core. Sb and Pb concentrations, and Pb stable isotopic ratios were analysed to study thye historical atmospheric deposition records and sources of Sb over the past 15 centuries. The Sb concentration was 4.21 mg/kg in sediments, its vertical distribution of Sb shows three large peaks in recent centuries, 1799, 1896 and 1944, coincided with Sb contamination from large wars, respectively. The peak in 1920 responded the large earthquake that happened in northern China, which was not far away from Lake Qinghai. The Sb/Pb ratio, 206Pb/207Pb and 208Pb/206Pb results suggest that Sb and Pb were probably from the ores in South China and coals in North China before 1965, but obviously from uses of leaded gasoline after 1965. | |||||
| 書誌情報 |
Microchemical Journal 巻 97, 号 1, p. 25-29, 発行日 2011-01 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0026-265X | |||||
