GYIG OpenIR  > 矿床地球化学国家重点实验室
U-pb zircon age, geochemical, and Sr-Nd isotopic constraints on the age and origin of granodiorite porphyries in the Guilong area, southern Yunnan Province, South China
Shen Liu; Ruizhong Hu; Caixia Feng; Guangying Feng; Youqiang Qi; Tao Wang; Ian M.Coulson; Yuhong Yang; Chaogui Yang; Liang Tang
2013
发表期刊Geochemical Journal
卷号47期号:1页码:65-77
摘要

Associated with several important polymetallic mineral deposits, the origin of the investigated Guilong area granodiorite porphyries (southern Yunnan Province) are presently poorly understood. For this reason we have undertaken a geochronological and geochemical study of these felsic intrusive rocks that includes: U-Pb zircon age-dating, whole-rock geochemical, and Sr-Nd isotopic data, and that are presented and discussed in this paper. Laser ablation inductively coupled plasma mass spectrometry, U-Pb zircon analyses yield an age of 252.5 +/- 1.0 Ma for one sample of the felsic rocks. The Guilong area granodiorite porphyries are characterized by variable and high (Sr-87/Sr-86)(i), ranging from 0.7103 to 0.7143, and relatively low epsilon(Nd)(t) values from -13.1 to -11.6. They also exhibit negative Nb, Ta, Ti and Sr anomalies on a primitive mantle-normalized multi-element diagram. Based upon their petrological and geochemical characteristics, we suggest that these rocks derive through the partial melting of crustal rocks at a shallow level. The parental magmas to the Guilong granodiorite porphyries underwent fractional crystallization of K feldspar, plagioclase, and ilmenite or rutile prior to emplacement. Magma generation at around 250 Ma (during Permian times) occurred in response to tectonic interactions between the Yangtze Platform and other crustal blocks, that provided the heat source and elevated geotherms required for partial melting of crust. 

关键词Granodiorite Porphyries U-pb Age-dating Origin Southern Yunnan Province South China
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.gyig.ac.cn/handle/42920512-1/11131
专题矿床地球化学国家重点实验室
作者单位1.NW Univ Xian, State Key Lab Continental Dynam, Xian 710069, Peoples R China
2.NW Univ Xian, Dept Geol, Xian 710069, Peoples R China
3.Chinese Acad Sci, Inst Geochem, State Key Lab Ore Deposit Geochem, Guiyang 550002, Peoples R China
4.Chengdu Univ Technol, Chengdu 610059, Peoples R Chinaept Geol, Solid Earth Studies Lab, Regina, SK S4S 0A2, Canada
5.Univ Regina, Dept Geol, Solid Earth Studies Lab, Regina, SK S4S 0A2, Canada
推荐引用方式
GB/T 7714
Shen Liu,Ruizhong Hu,Caixia Feng,et al. U-pb zircon age, geochemical, and Sr-Nd isotopic constraints on the age and origin of granodiorite porphyries in the Guilong area, southern Yunnan Province, South China[J]. Geochemical Journal,2013,47(1):65-77.
APA Shen Liu.,Ruizhong Hu.,Caixia Feng.,Guangying Feng.,Youqiang Qi.,...&Liang Tang.(2013).U-pb zircon age, geochemical, and Sr-Nd isotopic constraints on the age and origin of granodiorite porphyries in the Guilong area, southern Yunnan Province, South China.Geochemical Journal,47(1),65-77.
MLA Shen Liu,et al."U-pb zircon age, geochemical, and Sr-Nd isotopic constraints on the age and origin of granodiorite porphyries in the Guilong area, southern Yunnan Province, South China".Geochemical Journal 47.1(2013):65-77.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
U-pb zircon age, geo(3KB)期刊论文作者接受稿开放获取CC BY-NC-SA浏览 请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Shen Liu]的文章
[Ruizhong Hu]的文章
[Caixia Feng]的文章
百度学术
百度学术中相似的文章
[Shen Liu]的文章
[Ruizhong Hu]的文章
[Caixia Feng]的文章
必应学术
必应学术中相似的文章
[Shen Liu]的文章
[Ruizhong Hu]的文章
[Caixia Feng]的文章
相关权益政策
暂无数据
收藏/分享
文件名: U-pb zircon age, geochemical, and Sr-Nd isotopic constraints on the age and origin of granodiorite porphyries in the Guilong area, southern Yunnan Province, South China.pdf
格式: Adobe PDF
此文件暂不支持浏览
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。