Jie-Dong, Yang, Wei-Guo, Sun, Zong-Zhe, Wang, Yin-Xi, Wang (1996) Sm—Nd isotopic age of Precambrian—Cambrian boundary in China. Geological Magazine, 133 (1) 53-61 doi:10.1017/s001675680000724x
| Reference Type | Journal (article/letter/editorial) | ||
|---|---|---|---|
| Title | Sm—Nd isotopic age of Precambrian—Cambrian boundary in China | ||
| Journal | Geological Magazine | ||
| Authors | Jie-Dong, Yang | Author | |
| Wei-Guo, Sun | Author | ||
| Zong-Zhe, Wang | Author | ||
| Yin-Xi, Wang | Author | ||
| Year | 1996 (January) | Volume | 133 |
| Issue | 1 | ||
| Publisher | Cambridge University Press (CUP) | ||
| DOI | doi:10.1017/s001675680000724xSearch in ResearchGate | ||
| Generate Citation Formats | |||
| Mindat Ref. ID | 256819 | Long-form Identifier | mindat:1:5:256819:9 |
| GUID | 0 | ||
| Full Reference | Jie-Dong, Yang, Wei-Guo, Sun, Zong-Zhe, Wang, Yin-Xi, Wang (1996) Sm—Nd isotopic age of Precambrian—Cambrian boundary in China. Geological Magazine, 133 (1) 53-61 doi:10.1017/s001675680000724x | ||
| Plain Text | Jie-Dong, Yang, Wei-Guo, Sun, Zong-Zhe, Wang, Yin-Xi, Wang (1996) Sm—Nd isotopic age of Precambrian—Cambrian boundary in China. Geological Magazine, 133 (1) 53-61 doi:10.1017/s001675680000724x | ||
| In | (1996, January) Geological Magazine Vol. 133 (1) Cambridge University Press (CUP) | ||
| Abstract/Notes | AbstractBy the new method of Sm—Nd isotopic dating on phosphatic small skeletal fossils and collo-phanite minerals, the Zhongyicun Member of the earliest Cambrian Meishucun Stage at Meishucun in Yunnan, southern China, has been dated at 562.8 ± 7.9 Ma and 562.1 ± 5.7 Ma. Another Sm—Nd age, 570.3 ± 17.1 Ma, has been obtained with samples from the Zhongyicun Member in Yunnan and its stratigraphic equivalents in Sichuan and Xinjiang. These data tend to suggest that the best age estimate of the Precambrian—Cambrian boundary is very likely within the range of 560–570 Ma. As biophosphates and sedimentary phosphates are widely distributed in sequences of the Precambrian—Cambrian transition, the Sm-Nd isotopic method is recommended as an effective approach for precise dating of the initial Cambrian boundary. | ||
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