|
|
|
| Age and Eruption Environment of Volcanic Rock from Woniusi#br#
Formation in Shidian, Western Yunnan Province |
| HAO Jia-xu 1, ZOU Li-zhi2, CHEN Gang3, HUANG Yong1 |
(1.Guizhou Geological Survey, Guiyang 550005, China; 2.Guizhou Institute of Geophysical and Geochemical Prospecting, Bureau of
Geology and Mineral Exploration and Development of Guizhou Province, Guiyang 550018, China; 3.114 Geological Party,
Guizhou Bureau of Geology and Mineral Exploration and Development， Zunyi 563009, China) |
|
|
|
|
Abstract In previous studies on volcanic rock of Woniusi Formation in Shidian region, some researchers have proposed it has close relation with the marine volcanic activity as in Baoshan region, north Yunnan Province. However, the inexistence of sediment strata and characteristics of petrology, geochemistry and geology indicate that the eruption environment is significantly different between the two regions. It is showed that the Woniusi Formation form in continental eruption setting and associated with the continental flood magma in Shidian region. In addition, the age (264 Ma) of volcanic rock from Woniusi Formation and the contact relationship with upper and lower strata suggest the Woniusi Formation might be formed in Early Permian, and these provide new evidence for the formation age of Woniusi Formation.
|
|
|
|
|
|
| [1] |
CHU Huili. Nadingco Formation volcano rocks zircon U-Pb age and geochemical characteristics in Gêrzê county area of northern Tibet area[J]. , 2016, 3(6): 37-48. |
| [2] |
CHEN Ning, WANG Juchuan, YANG Tao, WU Tong, FENG Weihua, LI Qi, HE Zhengfeng, ZENG Zhongcheng. Age and tectonic significance of LA-ICP-MS Zircon U-Pb of the Shangqihan volcanic rocks in West Kunlun[J]. , 2016, 3(3): 21-28. |
| [3] |
LIU Zhen-yu， JIA Hai-ming， HUANG Wei-ping， WANG Chun-yang. Achievements and Prospects of Four 1:50 000 Regional Geological Survey Projects in Southwest Bangor County, Tibet[J]. , 2015, 2(7): 8-12. |
| [4] |
CEN Jing， PAN Wei-feng, SONG Ming-yi. Main Progress and Achievements in Land Quality Geochemical #br#
Assessment of Longyou, Zhejiang Province[J]. , 2015, 2(7): 19-23. |
| [5] |
JIANG Ren, YU Jun-jie, LAO Jin-xiu, ZENG Jian-wei, PENG Bo. Characteristics and Implications of the Quaternary Magnetostratigraphy in #br#
Borehole ZKA4 from the Northern Flank of Yangtze River Delta[J]. , 2015, 2(7): 30-34. |
| [6] |
XIE Ye-cai, ZHUANG Wen-ming, HE Xiang, HUANG Xue-fei, LONG Gui, SHANG Jian-lin. Main Progress and Achievements in 1:50 000 Regional Geological Survey of Houjiexu, Xiaolanzhen, Rongqizhen, Taipingzhen Regions,Guangdong Province[J]. , 2015, 2(7): 1-7. |
|
|
|
|
