globalchange  > 科学计划与规划
DOI: 10.1002/2015GL066354
论文题名:
CO2 flux and chemistry of El Chichõn crater lake (México) in the period 2013-2015: Evidence for the enhanced volcano activity
作者: Jácome Paz M.P.; Taran Y.; Inguaggiato S.; Collard N.
刊名: Geophysical Research Letters
ISSN: 0094-9521
EISSN: 1944-9252
出版年: 2016
卷: 43, 期:1
起始页码: 127
结束页码: 134
语种: 英语
英文关键词: CO2 flux ; El Chichõn volcano ; volcano-hydrothermal systems
Scopus关键词: Lakes ; Volcanoes ; CL-concentrations ; Crater lake ; Hydrothermal system ; Magmatic activity ; Volcano activity ; Carbon dioxide
英文摘要: The CO2 flux from El Chichõn crater in the period from 2014 to 2015 increased by a factor of 3 (from ~260 t d-1 to ~800 t d-1) compared to the 2007-2008 data. The mechanism triggering the CO2 flux from the lake surface has changed from being dominantly diffusive to mainly advective (bubbling). The Cl concentration was steadily decreasing during the last two decades in the Na-Cl boiling springs feeding the lake. Since 2013, for both lake and SP springs, the Cl concentration has increased up to the 2005 Cl concentration levels. A large degassing spot in the middle of the lake was found in April 2015 with a CO2 flux of more than 10,000 g m-2 d-1. These observations are the evidence of the onset of a new stage of activity within the volcano-hydrothermal system of El Chichõn volcano associated most probably with changes in the magmatic activity at depth. © 2015. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84957044523&doi=10.1002%2f2015GL066354&partnerID=40&md5=04e05e5e80b78f146cc440ce9887bab0
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10484
Appears in Collections:科学计划与规划
气候变化与战略

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作者单位: Instituto de Geofísica, Universidad Nacional Autõnoma de México, Mexico City, Mexico

Recommended Citation:
Jácome Paz M.P.,Taran Y.,Inguaggiato S.,et al. CO2 flux and chemistry of El Chichõn crater lake (México) in the period 2013-2015: Evidence for the enhanced volcano activity[J]. Geophysical Research Letters,2016-01-01,43(1).
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