| 浙江省常山县上震旦统西峰寺组碳酸盐的δ13C和δ18O测定 |
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| 引用本文： | 刘鸿允,陈孟莪,鲁刚毅. 浙江省常山县上震旦统西峰寺组碳酸盐的δ13C和δ18O测定[J]. 地质科学, 1992, 0(4): 342 |
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| 作者姓名： | 刘鸿允 陈孟莪 鲁刚毅 |
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| 作者单位： | 中国科学院地质研究所，中国科学院地质研究所，中国科学院地质研究所 |
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| 摘 要： | 作者对浙江省常山县三里亭北九家坞的上震旦统剖面的碳酸盐系统采集的54个样品,作了碳、氧稳定同位素的分析。其中δ13C除4个外几乎全为正值,平均值2.16%,这与前人提到过的文德期以δ13C负迁移为特征的结论不符。离散变为9.0。最大负峰值出现在剖面近中部的磷块岩层中,可能与海流状况的剧变有关。δ18O除最末两个为小的正值外,几乎全为负值。
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| 关 键 词： | 上震旦统 稳定同位素 常山县 |
| 修稿时间： | 1990-04-01; |
MEASUREMENTS OF δ13C AND δ18O IN CARBONATE OF THE UPPER SINIAN XIFENGSI FORMATION IN CHANGSHAN COUNTY, ZHEJIANG |
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| Liu Hongyun,Chen Menge and Lu Gangyi. MEASUREMENTS OF δ13C AND δ18O IN CARBONATE OF THE UPPER SINIAN XIFENGSI FORMATION IN CHANGSHAN COUNTY, ZHEJIANG[J]. Chinese Journal of Geology, 1992, 0(4): 342 |
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| Authors: | Liu Hongyun Chen Menge Lu Gangyi |
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| Affiliation: | Institute of Geology, Academia Sinica, Beijing 100029 |
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| Abstract: | Total 54 samples were collected from the Upper Sinian Xifengsi Formation section at Jiujiawu north of Shanliting in Changshan County, Zhejiang Province. Result of carbon isotope measurement shows that majority of δ13C is positive, but 4 negative. Then, calculated average is 2.16‰ and the deviation is 9.0‰. This record is not coincident with the previous conclusion on negative migration of δ13O during the Vendian. The middle phosphaterich part of the section shows negative peak, indicating probably an abrupt turnover of oceanic current. The δ18O ratio is almost all negative, except for last two samples. |
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| Keywords: | Upper Sinian Stable isotope Changshan County Zhejiang |
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