Mud volcanoes in the South Caspian basin: Nature and estimated depth of its products
Mud volcanoes in the South Caspian basin: Nature and estimated depth of its products
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南里海盆地的泥火山：其产物的性质和估计深度
DOI：
10.4236/ns.2012.47060
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
A. Feyzullayev
中科院分区：
文献类型：
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作者：
A. Feyzullayev
本文在总结前人研究成果和对南里海盆地泥火山的最新调查的基础上，计算了流体、泥浆和岩石的深度产状，并建立了模型。造成南里海盆地底辟/泥火山作用形成的主要因素是上新世-第四纪的高沉积速率（高达3 km/my）、超厚的沉积盖层（高达25-30 km）、剖面中粘土岩占优势（高达80%）、低温（15℃-18℃/km梯度）、超压达到岩石静压、石油生成的起始点降低到相当深的深度。大多数泥火山与含油气构造有关。泥火山的液态、气态和固态产物的来源深度似乎各不相同。气体的根最深（7-15 km），是MV形成和活动的主要动力。流化粘土质物质的来源不低于3-4公里。泥火山喷出的石油是其下石油堆积物被破坏的产物。
In paper based on the results of previous studies and latest investigations of mud volcanoes in the South Caspian basin the depth occurrence of fluid, mud and rocks are calculated and modeled. Major factors causing formation of diapirism/mud volcanism in the South Caspian basin are Pliocene-Quaternary high sedimentation rates (up to 3 km/my), super thick sedimentary cover (up to 25-30 km), predominance of clayey rocks (reaching 80%) in the section, low temperatures (with 15℃-18℃/km gradient), overpressures reaching lithostatic, the onset of petroleum generation lowered to considerable depths. The majority of the mud volcanoes are associated with the petroleum bearing structures. Depths where the liquid, gaseous and solid products of mud volcanoes are sourced appear to be different. The gases have the deepest roots (7-15 km) which are the main force in formation and activity of MVs. Source of the fluidized clayey mass does not lie below 3-4 km. Oils emitted by mud volcanoes are the product of destruction of petroleum accumulations occurring beneath them.