Genetic types of methane from Lake Baikal
Genetic types of methane from Lake Baikal
复制标题
贝加尔湖甲烷的成因类型
DOI：
10.1134/s1028334x06090285
复制
发表时间：
2006
影响因子：
0.9
通讯作者：
O. Khlystov
中科院分区：
文献类型：
--
作者：
G. Kalmychkov;A. Egorov;M. I. Kuz’min;O. Khlystov
在贝加尔湖的沿海（浅水）部分，我们研究了来自几个冰洞的气体，这些冰洞代表着通常在3月底至4月初由于湖底强烈的气体释放而形成的多冰湖（无冰水域）。这里的水深不超过30-40米。自20世纪90年代以来，在探测到湖底气体渗漏的地震声痕迹后，人们开始研究贝加尔湖深水部分的天然气渗漏。在湖的南部凹陷约1400米深的复杂地球物理工作中，发现了几个形态明显的隆起，高40米，宽800米，具有天然气管道和高热流。
In the coastal (shallow-water) part of Lake Baikal, we studied gas from several ice holes, which represent polynyas (ice-free water areas) typically formed at the end of March–beginning of April due to intense gas release from the lake floor. The water depth here is no more than 30–40 m. Gas seeps in the deep-water part of Baikal have been studied since the 1990s after the detection of seismoacoustic traces of gas seeps from the lake floor. Complex geophysical works in the Southern depression of the lake at a depth of ~1400 m revealed several morphologically distinct uplifts up to 40 m high and 800 m across with gas conduits and high heat flow.