Lithostratigraphy of Zechstein evaporites of the central and north-western parts of the Mogilno Salt Diapir, based on boreholes Z-9 and Z-17

Wachowiak, Jacek; Pawlikowski, M.; Wilkosz, Paweł

doi:10.7494/geol.2012.38.2.115

Cited by 7 publications

(2 citation statements)

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“…Its origin is linked with the salinity crisis that, according to various estimates, lasted for between 20 ka [ 24 ] and 600 ka [ 23 ] and led to the disappearance of large marine basins. Three samples (W2, W3, W4) of sedimentary rocks surrounding the salt deposit in the Wieliczka Salt Mine were collected at a depth of 110–130 m. Rock samples differed in lithology and the accompanying salt type ( Table 1 ) [ 19 , 25 , 26 ].…”

Section: Methodsmentioning

confidence: 99%

Microbial Involvement in Carbon Transformation via CH4 and CO2 in Saline Sedimentary Pool

Goraj

Szafranek-Nakonieczna

Grządziel

et al. 2021

Biology

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Methane and carbon dioxide are one of the most important greenhouse gases and significant components of the carbon cycle. Biogeochemical methane transformation may occur even in the extreme conditions of deep subsurface ecosystems. This study presents methane-related biological processes in saline sediments of the Miocene Wieliczka Formation, Poland. Rock samples (W2, W3, and W4) differed in lithology (clayey salt with veins of fibrous salt and lenses of gypsum and anhydrite; siltstone and sandstone; siltstone with veins of fibrous salt and lenses of anhydrite) and the accompanying salt type (spiza salts or green salt). Microbial communities present in the Miocene strata were studied using activity measurements and high throughput sequencing. Biological activity (i.e., carbon dioxide and methane production or methane oxidation) occurred in all of the studied clayey salt and siltstone samples but mainly under water-saturated conditions. Microcosm studies performed at elevated moisture created more convenient conditions for the activity of both methanogenic and methanotrophic microorganisms than the intact sediments. This points to the fact that water activity is an important factor regulating microbial activity in saline subsurface sediments. Generally, respiration was higher in anaerobic conditions and ranged from 36 ± 2 (W2200%t.w.c) to 48 ± 4 (W3200%t.w.c) nmol CO2 gdw−1 day−1. Methanogenic activity was the highest in siltstone and sandstone (W3, 0.025 ± 0.018 nmol CH4 gdw−1 day−1), while aerobic methanotrophic activity was the highest in siltstone with salt and anhydrite (W4, 220 ± 66 nmol CH4 gdw−1 day−1). The relative abundance of CH4-utilizing microorganisms (Methylomicrobium, Methylomonas, Methylocystis) constituted 0.7–3.6% of all taxa. Methanogens were represented by Methanobacterium (0.01–0.5%). The methane-related microbes were accompanied by a significant number of unclassified microorganisms (3–64%) and those of the Bacillus genus (4.5–91%). The stable isotope composition of the CO2 and CH4 trapped in the sediments suggests that methane oxidation could have influenced δ13CCH4, especially in W3 and W4.

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Section: Methodsmentioning

confidence: 99%

Microbial Involvement in Carbon Transformation via CH4 and CO2 in Saline Sedimentary Pool

Goraj

Szafranek-Nakonieczna

Grządziel

et al. 2021

Biology

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“…Currently, the solution mining is conducted only in the SE part of the Mogilno I. In the Mogilno II storage caverns for gas have been built since 1997 (Wachowiak et al, 2012). Both salt deposits are located in the Mogilno salt structure, which is 7 km wide and 30 km long.…”

Section: Mogilno Salt Domementioning

confidence: 99%

Archives of Mining Sciences

Cyran

2020

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Salt caverns are used for over 70 years to store power sources and dispose of industrial wastes. The design of cavern shape and dimensions is still considered as a difficult engineering problem despite progress in geotechnical, construction and exploration methods. The rational design of cavern depends on mechanical parameters of rock salt and nonsalt rocks, stability conditions, safety requirements and stored material. However, most of these factors are related to geological factors like depth of cavern location, the geological structure of salt deposit, lithology of interlayers, petrology and mineralogy of rock salt and interlayers. The significant diversity in the geological conditions of different rock salt deposits contributed to the variety in shape and dimensions of salt caverns worldwide.In this paper, the examples of caverns developed in various salt deposits are presented. The shape of these caverns and its relation to geological features is presented. The influence of geological factors on the formation of irregularities in a cavern shape is described. Moreover, the evaluation of storage caverns located in Polish salt deposits in a view of the aforementioned geological factors is performed. The information and analysis described in this paper provide input which can be useful in future plans connected with the development of underground storage in Poland.

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Raman spectroscopy of organic matter and rare minerals in the Kłodawa Salt Dome (Central Poland) cap-rock and Triassic cover – Indicators of hydrothermal solution migration

Toboła

Botor

2020

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

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Lithostratigraphy of Zechstein evaporites of the central and north-western parts of the Mogilno Salt Diapir, based on boreholes Z-9 and Z-17

Cited by 7 publications

References 1 publication

Microbial Involvement in Carbon Transformation via CH4 and CO2 in Saline Sedimentary Pool

Microbial Involvement in Carbon Transformation via CH4 and CO2 in Saline Sedimentary Pool

Archives of Mining Sciences

Raman spectroscopy of organic matter and rare minerals in the Kłodawa Salt Dome (Central Poland) cap-rock and Triassic cover – Indicators of hydrothermal solution migration

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