| Geochronology of and Nd—Sr—Pb Isotopic Evidence for Mantle Source in the Ancient Subduction Zone beneath Sanshui Basin,Guangdong Province,China |
| |
| 引用本文： | 朱炳泉,蒲志平,等. Geochronology of and Nd—Sr—Pb Isotopic Evidence for Mantle Source in the Ancient Subduction Zone beneath Sanshui Basin,Guangdong Province,China[J]. 中国地球化学学报, 1989, 8(1): 65-71. DOI: 10.1007/BF02842215 |
| |
| 作者姓名： | 朱炳泉 蒲志平 等 |
| |
| 作者单位： | InstituteofGeochemistry,AcademiaSinica,Guiyang |
| |
| 摘 要： | The available petrochemical data indicate that volcanic rocks in the Sanshui basin of Guangdong Prov-ince are characteristic of the island-arc tholeiite-calc-alkaline series.Their K-Ar ages range from 43 to 64 Ma,corresponding to Early Tertiary.The Nd-Sr-Pb isotopic correlations give two binary mixing trends,indicating a mixed source of Leiqiong depleted mantle,seawater and altered sediments pertaining to subduction.Our studies have confirmed the existence of an ancient subduction zone beneath the South Chi-na continent,which is considered to have resulted from the suturing of various terrains in southern China.
|
| 关 键 词： | 地球年代学 钕同位素 锶同位素 铅同位素 地壳 古消亡带 三水盆地 广东 |
Geochronology of and Nd-Sr-Pb isotopic evidence for mantle source in the ancient subduction zone beneath Sanshui Basin,Guangdong Province,China |
| |
| Zhu Bingquan,Wang HuiFen,Mao Cunxiao,Zhu Nai Juan,Huang Rongsheng,Peng Jianhua,Pu Zhiping. Geochronology of and Nd-Sr-Pb isotopic evidence for mantle source in the ancient subduction zone beneath Sanshui Basin,Guangdong Province,China[J]. Chinese Journal of Geochemistry, 1989, 8(1): 65-71. DOI: 10.1007/BF02842215 |
| |
| Authors: | Zhu Bingquan Wang HuiFen Mao Cunxiao Zhu Nai Juan Huang Rongsheng Peng Jianhua Pu Zhiping |
| |
| Affiliation: | (1) Institute of Geochemistry, Academia Sinica, Guiyang |
| |
| Abstract: | The available petrochemical data indicate that volcanic rocks in the Sanshui basin of Guangdong Province are characteristic of the island-arc tholeiite-calc-alkaline series.Their K-Ar ages range from 43 to 64 Ma, corresponding to Early Tertiary. The Nd-Sr-Pb isotopic correlations give two binary mixing trends, indicating a mixed source of Leiqiong depleted mantle, seawater and altered sediments pertaining to subduction.Our studies have confirmed the existence of an ancient subduction zone beneath the South China continent, which is considered to have resulted from the suturing of various terrains in southern China. |
| |
| Keywords: | |
| 本文献已被 维普 SpringerLink 等数据库收录！ |
|
