Global Geology 2016, 19(2) 78-84 DOI:     ISSN: 1673-9736 CN: 22-1371/P

Current Issue | Archive | Search                                                            [Print]   [Close]
论文
Information and Service
This Article
Supporting info
PDF(441KB)
[HTML]
Reference
Service and feedback
Email this article to a colleague
Add to Bookshelf
Add to Citation Manager
Cite This Article
Email Alert
Keywords
Paleoproterozoic
diorite porphyry
geochronology
geochemistry
western Shandong
Authors
YANG Haotian
SHI Jiangpeng
HUO Tengfei and YANG Donghong
PubMed
Article by Yang H
Article by Shi J
Article by Huo TAYD

Petrogenesis of Paleoproterozoic diorite porphyries in Luojiazhuang,western Shandong: constraints from LA- ICP- MS zircon U- Pb geochronology and geochemistry

YANG Haotian, SHI Jiangpeng, HUO Tengfei and YANG Donghong

1. College of Earth Sciences,Jilin University,Changchun 130061,China; 2. Research Center of Palaeontology & Stratigraphy,Jilin University,Changchun 130026,China

Abstract

Based on the study of LA- ICP- MS zircon U- Pb geochronology and whole- rock geochemistry for the Luojiazhuang diorite porphyries in Menying,western Shandong,the analyzed zircons exhibit oscillatory growth zoning in the cathodoluminescence images and have high Th/U ratios (0.15-1.53), indicating a magmatic ori- gin. In addition,most of the zircons have narrow metamorphic edges,suggesting that late metamorphic events may exist. The youngest group of magmatic zircon 207 Pb/ 206 Pb ages ranging from 2 384 Ma to 2 234 Ma,yiel- ding a weighted mean age of 2 353 ±14 Ma,which represents the forming age of the diorite porphyries,as the Early Paleoproterozoic. Geochemically,the samples are characterized by low SiO 2 (54.54% and 55.47%), high MgO (5.22% and 5.49%) and Mg # values (58 and 59). Moreover,they show enrichment of light rare earth elements and large ion lithophile elements (Rb,Ba and K),depletion of heavy rare earth elements and high field strength elements (Nb,Ta,Zr and Hf),positive anomaly of Pb,and negative anomaly of Ti. The fact implies that the Luojiazhuang diorite porphyries might derive from partial melting of enriched lithospheric mantle and mixed with an amount of continental crust material. In summary,they may form in the compression tectonic setting that stretching along the east- west direction at the North China Craton in the Early Paleoprotero- zoic.

Keywords Paleoproterozoic   diorite porphyry   geochronology   geochemistry   western Shandong  
Received  Revised  Online:  
DOI:
Fund
Corresponding Authors:
Email:
About author:

References:
Similar articles
1.QIN Tao,FANG Jie,ZHANG Yanlong,DING Xin,YU Guanying and YANG Hao . Geochronology and geochemistry of Daerlong granitic complex in Linkou area, eastern Heilongjiang: petrogenesis and tectonic implications 
 
[J]. Global Geology, 2024,27(4): 177-195
2.LI SiJia,SHEN YanJie and QIAN Ye . Research on rock hand specimen naming method based on deep learning and Inception-v3 model 
 
[J]. Global Geology, 2024,27(4): 196-206
3.LI Zizhuo, LIU Yunhe* and REN Xiuyan . 3D time-domain forward modeling of airborne transient electromagnetism considering superparamagnetic effect 
 
[J]. Global Geology, 2024,27(4): 216-232
4.WANG Yongchun,ZHONG Linshan,ZHAO Han and WU Qiong . Geoid interpolation in Gongzhuling City and the 1cm quasi geoid reffnement 
 
[J]. Global Geology, 2024,27(4): 207-215
5.Kovalenko S. V. 1,Kezina T. V. 2*,Kryuchko E. I. 1 and Mironov M. A. 1 . Preliminary results of lithological and palynological study of Svobodny, ancient man’s parking relic in Amur region, Russia [J]. Global Geology, 2024,27(3): 121-131
6.ZHANG Xinrong,WANG Jiayu,PING Shuaifei and LI Yaran . Changes of grain size from peat proffle in eastern mountainous area over past 2000 years, Jilin Province, Northeast China [J]. Global Geology, 2024,27(3): 132-144
7. CHEN Xuanning, HAN Fuxing, GAO Zhenghui *,SUN Zhangqing and HAN Jiangtao . Horizontal-to-vertical spectral ratio inversion method based on multimodal forest optimization algorithm[J]. Global Geology, 2024,27(3): 167-176
8.DU Meng,MAO Weijian,YANG Maoxin and ZHAO Jianzhi . Migration images guided high-resolution velocity modeling based on fully convolutional neural network [J]. Global Geology, 2024,27(3): 145-153
9.WEI Laonao, LIU Yunhe* and ZHANG Bo . UAV-based transient electromagnetic 3D forward modeling and inversion and analysis of exploration capability [J]. Global Geology, 2024,27(3): 154-166
10.NWABUEZE Ekene Chibuike,LIANG Chenyue,SONG Zhiwei,ZHAO jiaqi,ENEZE Florence Ego and ZHENG Changqing. Deformation characteristics of granitic rocks in Erguna ductile shear zone, NE China[J]. Global Geology, 2024,27(2): 63-75
11.LI Meihui,ZHENG Changqing and LIANG Chenyue . Metamorphic P-T conditions and zircon U-Pb ages of amphibolite in Laojinchang area, southern Jilin Province[J]. Global Geology, 2024,27(2): 76-92
12. LI Yonggang and YAN Bo . Facies logging identiffcation of intermediate-basic volcanic rocks in Huoshiling Formation of Songliao Basin[J]. Global Geology, 2024,27(2): 93-104
13.GUAN Yue,YU Yinghua,ZHANG Yaxiong and YUAN Hongqi . Characteristics of geological structures in Shiling and Zhuanshanhu areas of Yehe Uplift, NE China [J]. Global Geology, 2024,27(2): 105-120
14.ZHAO Junfeng,LI Weimin,LIU Tongjun and GAO Jinhui . Genesis and tectonic setting of Early Jurassic granitic rocks in Huashan Town, Xingcheng, western Liaoning[J]. Global Geology, 2024,27(1): 1-19
15.WU Haoran,YANG Hao,GE Wenchun,JI Zheng,DONG Yu,JING Yan and JING Jiahao . Spatial-temporal distribution and geochemistry of highly evolved Mesozoic granites in Great Xing’an Range, NE China: Discriminant criteria and geological signi?cance[J]. Global Geology, 2024,27(1): 20-34

Copyright by Global Geology