| Boron isotopic composition of Paleozoic brachiopod and coeval coral calcites in Yunnan-Guizhou Plateau, China | |
| Ma, YQ (Ma,Yunqi)[1,2,5]; Xiao, YK (Xiao,Yingkai)[2]; He, MY (He,Maoyong)[2]; Xiao, J (Xiao,Jun)[3]; Shen, Q (Shen,Quan)[4]; Jiang, SX (Jiang,Shengxiang)[1] | |
| 2011-12-30 | |
| 发表期刊 | SCIENCE CHINA-EARTH SCIENCES
 |
| 卷号 | 54期号:12页码:1912-1925 |
| 文章类型 | 期刊论文 |
| 摘要 | Boron isotope values in Paleozoic brachiopods and corals, collected from the Yunnan-Guizhou Plateau, China, can be used to constrain the boron isotope compositions of past oceans. All brachiopod shells and coral samples were screened for diagenetic recrystallization by cathodoluminescence microscopy, trace element geochemistry of B, Fe, Mn, Sr, and scanning electron microscopy. The boron isotope ratios for brachiopods in Silurian, Devonian, Carboniferous, and Triassic calcites are in the ranges 8.9aEuro degrees aEuro"14.0aEuro degrees, 8.8aEuro degrees aEuro"13.8aEuro degrees, 10.3aEuro degrees aEuro"16.3aEuro degrees, and 6.7aEuro degrees aEuro"12.4aEuro degrees, respectively. The boron isotope ratios of coral calcites in the Silurian, Devonian, and Permian are 9.1aEuro degrees aEuro"12.2aEuro degrees, 6.1%-13.8aEuro degrees, and 9.2aEuro degrees aEuro"16.1aEuro degrees, respectively. The delta (11)B values for both brachiopods and corals are significantly lower than those for modern biogenic carbonates, indicating that the Paleozoic oceans were depleted of delta (11)B by up to 10aEuro degrees. Our results are consistent with previous published studies. The boron isotope compositions of corals and brachiopods show the consistent trends. The low delta (11)B values may be explained by an enhanced riverine flux of boron from the continents. |
| 关键词 | boron isotope coral brachiopod Paleozoic |
| DOI | 10.1007/s11430-011-4263-5 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ieecas.cn/handle/361006/10333 |
| 专题 | 加速器质谱中心 |
| 通讯作者 | Jiang, SX (Jiang,Shengxiang)[1] |
| 作者单位 | 1.Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China; 2.Key Laboratory of Salt Lake Resources and Chemistry, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 810008, China; 3.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710075, China; 4.Geological Team 1, Yunnan Geoexploration and Development Bureau of Mineral Resources, Qujing 655000, China; 5.Graduate University of Chinese Academy of Sciences, Beijing 100049, China |
| 推荐引用方式 GB/T 7714 | Ma, YQ ,Xiao, YK ,He, MY ,et al. Boron isotopic composition of Paleozoic brachiopod and coeval coral calcites in Yunnan-Guizhou Plateau, China[J]. SCIENCE CHINA-EARTH SCIENCES,2011,54(12):1912-1925. |
| APA | Ma, YQ ,Xiao, YK ,He, MY ,Xiao, J ,Shen, Q ,&Jiang, SX .(2011).Boron isotopic composition of Paleozoic brachiopod and coeval coral calcites in Yunnan-Guizhou Plateau, China.SCIENCE CHINA-EARTH SCIENCES,54(12),1912-1925. |
| MLA | Ma, YQ ,et al."Boron isotopic composition of Paleozoic brachiopod and coeval coral calcites in Yunnan-Guizhou Plateau, China".SCIENCE CHINA-EARTH SCIENCES 54.12(2011):1912-1925. |
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