Tectono-magmatogenering structures in zones of increased geodynamic instability as priority objects for exploration of hydrogen fields

IF 0.5 Q4 GEOCHEMISTRY & GEOPHYSICS
A. Lukin, V. Shestopalov
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引用次数: 2

Abstract

Based on comparison of the migration activity of hydrocarbons, helium and hydrogen, the paper substantiates the types of cap rocks for hydrogen accumulations (pools), which most of all contributes to its partial shieldingat steady feed. Such cap rocks are represented by predominantly smectite clay, pure (without inclusions) salt at depths over 1—2 km, non-fractured quartz sandstone at depths over 4 km, effusive and hypabissal intrusive rocks, as well as basement rocks undisturbed by metamorphic decomposition processes. Endogenous hydrogen isconsidered as the main factor of dissipative structures formation. Occurrence of hydrogen, hydrocarbon and ore macro accumulations is a kind of energy, information-geochemical fluctuations, which are intermediate states of dissipative structures subordinated to the planetary heat and mass transfer processes caused by the deep Earth degassing. In this context, the nature of geodynamic instability (activation of vertical movements, shifts, tensile and compressive stresses) can be considered as a growing sequence of dissipative processes associated with the energy percolation role of endogenous hydrogen. In the hierarchy of ring structures (RS) (from minor depressions to large structures of dozens kilometres in diameter) special attention should be paid to Sribne RS within the Dnieper-Donets Basin and Kaluga RS within the SW part of the Voronezh anteclisepericline. These ring structuresare genetically related to explosion or volcanic calderas, and characterized by ancient origin (Proterozoic) and long-term development, including neo- and actuotectonic stages. Intensity of hydrogen degassing in the Sribne RSis confirmed by micro- and nano-inclusions in the black-shale domanicoid rocks of the productive horizons in the form of particles of native metals(including oxyphile elements Al, Zn, W and others), natural alloys and intermetallids, which are tracers of ascending flows of deep reduced fluids. It is reasonable to assume the occurrence of a large hydrogen or helium-hydrogen field (group of fields) within the Sribne RS in the Lower Visean, Lower Bashkirian and Lower Permian aged rocks, which are shielded by the Lower Permian salt deposits.
地球动力不稳定加剧地区的构造-岩浆生成构造是勘探氢田的优先对象
通过对碳氢化合物、氦气和氢气迁移活动的比较,确定了氢气聚集(藏)的盖层类型,这些类型大多是其在稳定进料下部分屏蔽的原因。这种盖层岩石主要由蒙脱石粘土、深度超过1-2km的纯(无包裹体)盐、深度超过4km的非破碎石英砂岩、溢流和半渗透侵入岩以及未受变质分解过程干扰的基岩代表。内源性氢被认为是耗散结构形成的主要因素。氢、碳氢化合物和矿石宏观聚集的发生是一种能量、信息地球化学波动,是地球深层脱气引起的行星传热传质过程所服从的耗散结构的中间状态。在这种情况下,地球动力学不稳定性的性质(垂直运动、位移、拉伸和压缩应力的激活)可以被视为与内源性氢的能量渗流作用相关的耗散过程的增长序列。在环形结构(RS)的层次结构中(从较小的凹陷到直径数十公里的大型结构),应特别注意第聂伯河-顿涅茨盆地内的斯里布内RS和沃罗涅日前构造带西南部的卡卢加RS。这些环状结构在基因上与爆炸或火山破火山口有关,其特征是起源于古代(元古代)和长期发展,包括新构造和实际构造阶段。Sribne RS中氢气脱气的强度通过生产层黑色页岩圆顶状岩石中的微米和纳米包裹体得到证实,这些包裹体以天然金属颗粒(包括亲氧元素Al、Zn、W和其他)、天然合金和金属间化合物的形式存在,它们是深部还原流体上升流的示踪剂。可以合理地假设,在下Visean、下Bashkirian和下二叠纪的岩石中,Sribne RS内存在一个大型氢或氦氢场(一组场),这些岩石被下二叠纪的盐类矿床所遮挡。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Geofizicheskiy Zhurnal-Geophysical Journal
Geofizicheskiy Zhurnal-Geophysical Journal GEOCHEMISTRY & GEOPHYSICS-
自引率
60.00%
发文量
50
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