Specific features of the structure of microbial biomass in soils of annular mesodepressions in Lipetsk and Volgograd oblasts

Polyanskaya, L. V.; Sukhanova, N. I.; Chakmazyan, K. V.; Zvyagintsev, D. G.

doi:10.1134/s1064229314090105

Cited by 9 publications

(3 citation statements)

References 5 publications

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“…The fertility of arable lands decreases significantly, and they often become unsuitable for cultivation (Sukhanova et al 2013). The total quantities and biomasses of bacterial cells and fungal spores and the lengths of fungal and actinomycete mycelia decrease (Polyanskaya et al 2014). The soil bleaching associated with Carolina bays could also be similar to the bleaching phenomenon associated with the bay-like features in the EEC.…”

Section: Geometry and Origin Of Carolina Bay Structuresmentioning

confidence: 76%

“…When soil scientists studied the hydrogen-seeping features in the EEC in Russia (Sukhanova et al 2013;Polyanskaya et al 2014), they found that molecular hydrogen seeps from these structures and that this seepage affects the soil layers by disturbing the vegetation and the microbial biomass. In areas of H 2 seepage, the humus content decreases by a factor of 2-3 and the optical density of the humic acids is lower than in the surrounding areas.…”

Section: Geometry and Origin Of Carolina Bay Structuresmentioning

confidence: 99%

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Evidence for natural molecular hydrogen seepage associated with Carolina bays (surficial, ovoid depressions on the Atlantic Coastal Plain, Province of the USA)

Zgonnik

Beaumont

Deville

et al. 2015

Prog. in Earth and Planet. Sci.

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A study of soil gases was made in North Carolina (USA) in and around morphological depressions called "Carolina bays." This type of depression is observed over the Atlantic coastal plains of the USA, but their origin remains debated. Significant concentrations of molecular hydrogen (H 2 ) were detected, notably around the bays. These measurements suggest that Carolina bays are the surficial expression of fluid flow pathways for hydrogen gas moving from depth to the surface. The potential mechanisms of H 2 production and transport and the geological controls on the fluid migration pathways are discussed, with reference to the hypothesis that Carolina bays are the result of local collapses caused by the alteration of rock along the deep pathways of H 2 migrating towards the surface. The present H 2 seepages are comparable to those in similar structures previously observed in the East European craton.

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Section: Geometry and Origin Of Carolina Bay Structuresmentioning

confidence: 76%

Section: Geometry and Origin Of Carolina Bay Structuresmentioning

confidence: 99%

Evidence for natural molecular hydrogen seepage associated with Carolina bays (surficial, ovoid depressions on the Atlantic Coastal Plain, Province of the USA)

Zgonnik

Beaumont

Deville

et al. 2015

Prog. in Earth and Planet. Sci.

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“…Hydrolysis of minerals is also considered a source of hydrogen [Molchanov, 1981;Sherwood Lollar et al, 2014;Warr et al, 2019 etc.]. The possibility of biological generation and consumption of hydrogen [Chapelle et al, 2002;Takai et al, 2004;Lin et al, 2005;Russel et al, 2010;Parkes et al, 2011;McCollom, Seewald, 2013;Sukhanova et al, 2013;Polyanskaya, 2014;Wang et al, 2014;Konn et al, 2015;Chakmazyan, 2016;Dzaugis et al, 2016;Parnell, 2017 etc. ] as well as its migration and formation in fault zones is widely considered [Wakita et al, 1980;Sugisaki et al, 1980;Jones, Pirkle, 1981;Ware et al, 1984;Sa to et al, 1986;Su et al, 1992;Zhou et al, 2010 etc.…”

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confidence: 99%

Prospects for exploration of hydrogen fields in riftogene structures of platforms (the case of the Dnieper-Donets Aulacogene)

Шестопалов

Lukin

Ponomarenko

et al. 2021

GZh

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This paper shows the prospect to find industrial-scale hydrogen accumulations in riftogenic structures of platforms using the example of the Dnieper-Donets Aulacogene, located in the southern part of the East European Platform. Within the Dnieper-Donets Depression, geological and geophysical methods indicate a significant number of deep faults and ring structures of volcanogenic and explosive origin promising increased hydrogen content. Possible locations of the most propitious areas of hydrogen concentration are associated with faults in rift systems and their nearest margins, as well as with explosive and volcanogenic ring structures with signs of modern activation. At a fine-grained level, the prospectivity of the area is determined not only by the specified structural relationship, but also by the set of geophysical characteristics (thermal, seismic, gravity, electrical conductivity, magnetic) and the corresponding geological and hydrogeological parameters. Areas for further more detailed investigations within the Sribne and other ring structures, Southern Near-Edge Fault, Northern Near-Edge Fault were identified based on the data on geological and geophysical materials, satellite images, and field work. We defined high-priority and low-priority territories. Areas for initial investigations using satellite images, gas sampling (hydrogen, helium, methane, etc.), primary geophysical surveys (with evaluation of intermediate reservoirs and cap rocks) were identified. The primary results can be used to plan pilot shallow drilling and wells sampling. The areas for priority deeper drilling and sampling are selected by the sum of results obtained and data comparison. The paper presents the results obtained 30 km east of Kyiv as an example of field assessment of H2 degassing in a local depression. The results show that hydrogen concentrations at depths of 0.45 to 1.5 m are near zero outside the local depression. The maximum values of H2 concentration (up to 3300 ppm 1.5 m deep) are characteristic of the point inside the depression.

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The occurrence and geoscience of natural hydrogen: A comprehensive review

Zgonnik¹

2020

Earth-Science Reviews

237

111

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Specific features of the structure of microbial biomass in soils of annular mesodepressions in Lipetsk and Volgograd oblasts

Cited by 9 publications

References 5 publications

Evidence for natural molecular hydrogen seepage associated with Carolina bays (surficial, ovoid depressions on the Atlantic Coastal Plain, Province of the USA)

Evidence for natural molecular hydrogen seepage associated with Carolina bays (surficial, ovoid depressions on the Atlantic Coastal Plain, Province of the USA)

Prospects for exploration of hydrogen fields in riftogene structures of platforms (the case of the Dnieper-Donets Aulacogene)

The occurrence and geoscience of natural hydrogen: A comprehensive review

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