粤西德庆岩体地质特征及其锆石LA-ICP-MS年龄
Geological Characteristics and LA-ICP-MS Zircon U-Pb Dating of Deqing Pluton, West Guangdong Province
作者: 张献河 , 严成文 , 李宏卫 , 李出安 :广东省地质调查院,广东 广州;
关键词: 德庆岩体; 地质特征; LA-ICP-MS锆石U-Pb测年; 粤西; Deqing Pluton; Geological Characteristics; LA-ICP-MS Zircon U-Pb Dating; West Guangdong Province
摘要:Abstract: Deqing pluton is one of the main plutons located in western part of Guangdong Province. Its main lithology is middle-grained (porphyritic) biotite monzogranite and it is calc-alkali granite that is rich in SiO2 and Al2O3. This study used LA-ICP-MS zircon U-Pb dating method and the result shows that the age of crystallization of the Deqing pluton is about 237.1 ± 3.4 Ma, belonging to the product of Indosinian magmatism, and its genesis is closely related to syn-collision tectonic background in Yunkai area during Indosinian movement.
文章引用: 张献河 , 严成文 , 李宏卫 , 李出安 (2015) 粤西德庆岩体地质特征及其锆石LA-ICP-MS年龄。 地球科学前沿, 5, 154-159. doi: 10.12677/AG.2015.53019
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