U-Pb Dating of Zircons and Ore-bearing Potential of Zhulanbu Intrusions in the Southern Jiangxi Province

ZENG Le; CHEN Zheng-hui; SUN Feng-yue; WANG Jia-huan; SUN Ying-chao; CHEN Zhen-yu

doi:10.15898/j.cnki.11-2131/td.2016.02.013

2016 Vol. 35, No. 2

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Article navigation > Rock and Mineral Analysis > 2016 > 35(2): 199-207

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ZENG Le, CHEN Zheng-hui, SUN Feng-yue, WANG Jia-huan, SUN Ying-chao, CHEN Zhen-yu. U-Pb Dating of Zircons and Ore-bearing Potential of Zhulanbu Intrusions in the Southern Jiangxi Province[J]. Rock and Mineral Analysis, 2016, 35(2): 199-207. doi: 10.15898/j.cnki.11-2131/td.2016.02.013

Citation:

ZENG Le, CHEN Zheng-hui, SUN Feng-yue, WANG Jia-huan, SUN Ying-chao, CHEN Zhen-yu. U-Pb Dating of Zircons and Ore-bearing Potential of Zhulanbu Intrusions in the Southern Jiangxi Province[J]. Rock and Mineral Analysis, 2016, 35(2): 199-207. doi: 10.15898/j.cnki.11-2131/td.2016.02.013

U-Pb Dating of Zircons and Ore-bearing Potential of Zhulanbu Intrusions in the Southern Jiangxi Province

1.
College of Earth Sciences, Jilin University, Changchun 130026, China
2.
Key Laboratory of Metallogeny and Mineral Resource Assessment, Institute of Mineral Resource, Chinese Academy of Geological Sciences, Beijing 100037, China
3.
School of Earth Environment and Water Resources, Changjiang University, Jingzhou 434023, China
4.
School of Earth Sciences and Resources, China University of Geosciences(Beijing), Beijing 100083, China

More Information

Corresponding author: CHEN Zheng-hui, chenzhenghui@sina.com

Received Date: 08 December 2015

Revised Date: 04 March 2016

Accepted Date: 10 March 2016

Publish Date: 25 February 2016

Abstract

Abstract

Zhulanbu granite is located in the Nanling district with a large exposed area, but its formation age is still unknown. It was previously considered to have formed at the Yanshanian, but no precise isotopic age was reported, as a result of the limitation of time and method. LA-(MC)-ICPMS was used to determine the ages of zircons from coarse grained prophyritic bioxite granite and medium-fine grained prophyritic biotite granite, which were used to discuss the ore potential, and is reported here. These two types of rocks have ages of 228.7±2.0 Ma and 231.0±1.2 Ma, indicating Zhulanbu composite granite was formed in Indosinian. Combined with the geochemistry of Zhulanbu composite granite and ore-forming characteristic of Indosinian granite, these ages explain the phenomenon that tungsten deposits are not found within the granite and its surroundings. This study provides a new example for the study of granite in southern Jiangxi.
- Nanling granite /
- Zhulanbu granite /
- LA-(MC)-ICPMS zircon U-Pb dating /
- Indosinian

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