Geochemical Characteristics and Tectonic Significance of Huziyan Lamprophyre in Daoxian County, Hunan

2021 ◽  
Vol 11 (08) ◽  
pp. 1074-1084
Author(s):  
恩云 梁
Keyword(s):  
Geochemical Characteristics ◽  
Tectonic Significance

Zircon SHRIMP U-Pb dating, geochemical characteristics and tectonic significance of granitic gneisses in Amdo, Tibet

2014 ◽  
Vol 25 (3) ◽  
pp. 473-485 ◽  
Author(s):  
Lu Lu ◽  
Zhenhan Wu ◽  
Zhen Zhao ◽  
Daogong Hu ◽  
Peisheng Ye
Keyword(s):  
Geochemical Characteristics ◽  
Tectonic Significance

scholarly journals Geochemical Characteristics and Tectonic Significance of the Acidic Volcanic Rocks from the Shetang-Boyang Area, Western Qinling Orogenic Belt, China

2016 ◽  
Vol 5 (2) ◽  
pp. 209
Author(s):  
Aiai Ma ◽  
Hao Guan ◽  
Lifei Zou ◽  
Lanlan Sun
Keyword(s):  
Tectonic Setting ◽  
Volcanic Rocks ◽  
Orogenic Belt ◽  
Geochemical Characteristics ◽  
Geochemical Data ◽  
Regional Studies ◽  
Western Qinling ◽  
Continental Extension ◽  
Qinling Orogenic Belt ◽  
Tectonic Significance

Acidic volcanic rocks of Shetang-Boyang area are located in the western Qinling orogenic belt, consist of rhyolite and granite porphyry. They are comparable in the chemical composition, enriched in Si, alkali, Al and a little bit of Mg, Ca and Ti. The contents of HFSE (Zr, Hf) and LILE (Rb, Th, U) are high, however, the content of Ba, Sr, Ti, P have obviously depleted and there are obvious negative Eu anomalies (Eu/Eu*=0.06-0.13). These geochemical characteristics are revealed that these volcanic rocks have an A1 type affinity. Geochemical data combined with regional studies, show that these volcanic rocks were formed in a continental extension setting and the western Qinling orogenic belt in 211Ma has been in the tectonic setting of post-collisional extension.

Sign in / Sign up

Export Citation Format

Share Document