CO2 flux estimations of hot springs in the Tengchong Cenozoic volcanic field, Yunnan Province, SW China

	CO2 flux estimations of hot springs in the Tengchong Cenozoic volcanic field, Yunnan Province, SW China
	Cheng ZhiHui; Guo ZhengFu; Zhang MaoLiang; Zhang LiHong
刊名	ACTA PETROLOGICA SINICA
	2012-04-01
卷号	28 期号:4 页码:1217-1224
关键词	Hot spring Greenhouse gases CO2 flux Tengchong Cenozoic volcanic field (SW China)
ISSN号	1000-0569
文献子类	Article
英文摘要	Recent research results have indicated that, beside volcanic eruption periods, dormant periods in the intermittent between the volcanic activities can emit a large amount of the greenhouse gases into atmosphere. In the intermittent between volcanic eruptions, greenhouse gases are erupted front the volcanic eruptive fields in the forms of fumaroles, hot springs, soil micro-seepage and so on. Tengchong volcanic and geothermal system is one of the most important Cenozoic volcanic activity fields in China whereas the estimates of the greenhouse gases emitted from Tengchong have been poorly understood. Using a new apparatus named digital bubble flowmeter, we have measured the flux of bubbles in hot springs of the Cenozoic volcanic field in Tengchong. The estimated result shows that the flux of CO2 from hot springs of Tengchong is up to 3.58 x 10(3)t . a(-1), which could be compared to the amount of the Bassoleto hydrothermal area in Siena, Italy. Based on the characteristics and distribution of the fluxes of CO2 estimated, the hot springs in Tengchong can be divided into two areas: south area and north area. The emission of CO2 in the south area is apparently higher than that in the north one and the largest one is located in Rehai area in the south area. The formation of CO2 emitted from the hot springs is controlled by several factors, such as magma chamber temperature, fault penetrating, underground water circulation and country "rock compositions. The flux of CO2 is mainly controlled by fault activities in the north area whereas the flux of CO2 in the south area is dominated by the magma chamber temperatures (e. g. Rehai). The magma chamber is thought to be one of the sources of CO2, as well as it may contribute the hot springs with large amount of heat. However, fault activities may act as a pathway of the hot springs during their uprise.
WOS关键词	CRUSTAL STRUCTURE ; MAMMOTH MOUNTAIN ; AREA ; MARGIN ; ORIGIN ; GASES
WOS研究方向	Geology
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000303970100018
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/84386]
专题	中国科学院地质与地球物理研究所
通讯作者	Cheng ZhiHui
作者单位	Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Cheng ZhiHui,Guo ZhengFu,Zhang MaoLiang,et al. CO2 flux estimations of hot springs in the Tengchong Cenozoic volcanic field, Yunnan Province, SW China[J]. ACTA PETROLOGICA SINICA,2012,28(4):1217-1224.
APA	Cheng ZhiHui,Guo ZhengFu,Zhang MaoLiang,&Zhang LiHong.(2012).CO2 flux estimations of hot springs in the Tengchong Cenozoic volcanic field, Yunnan Province, SW China.ACTA PETROLOGICA SINICA,28(4),1217-1224.
MLA	Cheng ZhiHui,et al."CO2 flux estimations of hot springs in the Tengchong Cenozoic volcanic field, Yunnan Province, SW China".ACTA PETROLOGICA SINICA 28.4(2012):1217-1224.