Global Geology 2014, 17(2) 86-98 DOI:     ISSN: 1673-9736 CN: 22-1371/P

Current Issue | Archive | Search                                                            [Print]   [Close]
Information and Service
This Article
Supporting info
Service and feedback
Email this article to a colleague
Add to Bookshelf
Add to Citation Manager
Cite This Article
Email Alert
complex rock mass
tectonic setting
YANG Naifeng1
YANG Liting1and WANG Chunguang2
Article by YANG Naifeng1
Article by YANG Liting1and WANG Chunguang2

Geochemistry and tectonic significance of Early Cretaceous granites in Highland 1248 of Daxing'anling

 YANG Naifeng, YANG Liting and WANG Chunguang

1. Heilongjiang Mining Group Co.,Ltd.,Harbin,150036,China; 2. College of Earth Sciences,Jilin University,Changchun 130061,China


The Early Cretaceous granitic complex in Highland 1248 of Daxing'anling successively consists of in- truded granodiorite,monzonite granite and syenite granite. Through test analysis on the major,trace and rare earth elements of the intrusive complex,this study focuses on the source characteristics and tectonic environ- ment of the original magma of intrusive complex. The results show that the intrusive rocks in Highland 1248 are meta-aluminous-peraluminous rocks in calc-alkaline series with homologous characteristics in δEu negative anomalies; the complex is enriched in LILE (Rb,Cs and K) and depleted in HFSE (lanthanide,Sc,Y,U, Nb and Ta),displaying the geochemical characteristics of I-type granites in active continental-margin subduc- tion zones. The complex also has the characteristics of granites after the collision of plate with rich aluminum and high potassium,but significantly depleted Nb,Ta,Ti,P and other elements,i. e. in the orogenic evolu- tionary stage. The zircon U-Pb SHRIMP isotopic apparent age of the complex in Highland 1248 is 140. 0--141. 0 Ma,and the formation time is in Early Cretaceous.

Keywords complex rock mass   geochemistry   tectonic setting   Daxinganling  
Received  Revised  Online:  
Corresponding Authors:
About author:

Similar articles
1.ZHAO Qingying, LI Chunfeng, WANG Guoliang and LI Xuefei.Chracteristics and formation setting of granodiorite in Zhalute County, Inner Mongolia[J]. Global Geology, 2009,12(3): 156-159
2. SUN Linhua, GUI Herong and CHEN Song.Geochemistry of Neoproterozoic mixosedimentite in northern Anhui and its geological significance[J]. Global Geology, 2010,13(3-4): 128-134
3. HUANG Yongwei, LIU Jiajun and GAO Chen.Geochemistry and metallogenic age of Sishanlinchang gold-silver deposit in Jidong of Heilongjiang[J]. Global Geology, 2011,14(1): 29-43
4. ZHAO Yongyue, WANG Li and YANG Heting.Geochemistry of fluid inclusions from Linglong gold deposit in Shandong,China[J]. Global Geology, 2012,15(1): 26-34
5. WANG Jianguo, HE Zhonghua, CHAO Lin, WU Qing and JIN Ling.Petrogenesis of Early Cretaceous riebeckite granophyres in southern Da Hinggan Mts.[J]. Global Geology, 0,(): 26-34
6. WANG Jianguo, HE Zhonghua*, CHAO Lin, WU Qing and JIN Ling.Petrogenesis of Early Cretaceous riebeckite granophyres in southern Da Hinggan Mts.[J]. Global Geology, 2013,16(1): 26-34
7. ZHANG Shanming1, 2, SUN Huashan2* , ZHU Zhexin1, LIU Hongwei1 and CHI Hongxin.Diagenesis tectonic setting and U-Pb dating for zircon from Tanjianshan Group in northern margin of Qaidam Basin[J]. Global Geology, 2013,16(3): 130-143
8. ZHAO Dalin1, WANG Dehai1, LV Shicong1, CHEN Chunhu2and ZHAO Yanwei3.Sedimentary environment of Middle Permian Zhesi Formation in Solon area of Inner Mongolia[J]. Global Geology, 2014,17(1): 11-37
9. KONG Yuanming, MA Rui, HE Zhonghua, YANG Deming, WU Qing and WANG Yang.Characteristics and tectonic setting of volcanic rocks in Early Cretaceous Baiyingaolao Formation of Keyouzhongqi area,Inner Mongolia[J]. Global Geology, 2014,17(2): 78-85

Copyright by Global Geology