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首页> 外文期刊>Journal of Volcanology and seismology >An analysis of hydrogeological behavior in the Geyser Valley, Kronotskii nature reserve, Kamchatka after the disaster of June 3, 2007
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An analysis of hydrogeological behavior in the Geyser Valley, Kronotskii nature reserve, Kamchatka after the disaster of June 3, 2007

机译：2007年6月3日灾难后，堪察加半岛克罗诺斯基自然保护区间歇泉水文地质行为分析

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摘要

This paper describes the results from observations of the hydrogeological behavior in the Geyser Valley in 2007-2013 at the main monitored geysers and springs and in Lake Podprudnoe after the disastrous landslide of June 3, 2007. According to observations at Bolshoy Geyser, its mean eruption period is almost two times shorter compared to that before the landslide; it is 63 min now. Its activity is controlled by the level of Lake Podprudnoe. Velikan Geyser was found to have a significantly shorter period of eruption, decreasing from the mean annual value of 379 min (in 2007) to 335 min during the first 3 years after the disastrous landslide, with the mean annual eruption period subsequently stabilizing. It was found that Velikan Geyser showed an increasing period of eruption within its hydrogeologic cycle during winter (by about 50 min on average). The mean annual value of the deeper discharge component in the hydrothermal system (as determined by the chloride technique) is estimated as 215 kg/s; it was observed to decrease (by 30%) during the spring-summer flooding. The injection of meteoric waters from Lake Podprudnoe did not produce any significant hydrochemical changes in the Velikan and Pervenets geysers, but the main component of the deeper heat carrier was found to be diluted in Bolshoy Geyser. On the whole, the gas composition of the pipes in the geysers and boiling springs is dominated by the atmospheric component, while the feeder reservoir of Velikan Geyser is dominated by CO2 and N-2 with considerable concentrations of methane and hydrogen. TOUGH2 modeling showed that the decrease in the eruption period was related to the hydrodynamic effects of Lake Podprudnoe. We examined the influence of seismicity on the eruption behavior of Velikan Geyser.
机译：本文描述了2007年6月3日灾难性滑坡后，在2007-2013年间歇泉谷主要监测的间歇泉和泉水以及Podprudnoe湖的水文地质行为的观测结果。根据在Bolshoy Geyser的观测，其平均喷发比滑坡发生前的时间短将近两倍;现在是63分钟。它的活动受Podprudnoe湖水位的控制。韦里坎间歇泉的喷发周期明显缩短，从灾难性滑坡后的前三年，从年均值379分钟（2007年）降至335分钟，随后年均喷发期稳定下来。发现在冬季，Velikan间歇泉在其水文地质周期内显示出不断增加的喷发期（平均约50分钟）。热液系统中较深的排放成分的年平均值（通过氯化物技术确定）估计为215 kg / s;据观察，在春夏季洪水期间，这一比例下降了30％。从Podprudnoe湖注入的流域水在Velikan和Pervenets间歇泉中未产生任何明显的水化学变化，但发现更深的热载体的主要成分在Bolshoy Geyser中被稀释。总体而言，间歇泉和沸腾泉中管道的气体成分主要由大气成分决定，而Velikan间歇泉的进料储层主要由CO2和N-2以及相当大量的甲烷和氢气组成。 TOUGH2模型表明，喷发期的减少与Podprudnoe湖的水动力效应有关。我们研究了地震对韦里肯间歇泉喷发行为的影响。

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