Permeability changes in fractured Tamusu mudstone in the context of radioactive waste disposal

Yu, Hongdan; Chen, Lu; Chen, Weizhong; Li, Honghui

doi:10.1007/s10064-021-02445-6

Cited by 16 publications

(3 citation statements)

References 53 publications

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“…The analcite may play a role with respect to radionuclide retention, as discussed in the case of the potential Yucca Mountain host rock and for low- and intermediate-level short-lived radioactive waste in Belgium . In view of functions of analcime channels and molecular sieves, mudstones bearing analcite have advantages over typical clay rocks (host rocks) in terms of radionuclide adsorption, water content, thermal stability, and permeability . The primary pores of mudstone filled with dolomite and analcime cement also highlight the advantages of the uniaxial compressive strength of mudstone, which contribute to engineering construction more than typical clay rocks .…”

Section: Discussionmentioning

confidence: 99%

“…32 In view of functions of analcime channels and molecular sieves, mudstones bearing analcite have advantages over typical clay rocks (host rocks) in terms of radionuclide adsorption, water content, thermal stability, and permeability. 33 The primary pores of mudstone filled with dolomite and analcime cement also highlight the advantages of the uniaxial compressive strength of mudstone, which contribute to engineering construction more than typical clay rocks. 34 In recent studies, it was found that aqueous Se (IV) can be reduced to Se (0) 35 and that aqueous U (VI) could be partially reduced to U (IV) and/or U (V)-containing precipitates (U 3 O 8 , U 4 O 9 , etc.)…”

Section: Sedimentary Model Of Hydrothermal Rocksmentioning

confidence: 99%

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Characteristics and Geological Significance of Lacustrine Hydrothermal Sedimentary Rocks in the Yingejing Sag in Bayingebi Basin, Inner Mongolia, Northwestern China

Dai,

Zhang,

Luo

et al. 2024

ACS Omega

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In order to promote site screening for high-level radioactive waste (HLW) disposal purposes, the characteristics of argillaceous rock (potential host rock) from the Yingejing Sag of the Bayingebi Basin, Northwest China have been well discussed. Results show that (1) Unlike argillaceous host rocks in foreign countries, the argillaceous rock mainly consists of analcite, dolomite, and albite; the contents of clay minerals are only about 10%. Five typical structures could be categorized, dominating by the massive structure. (2) Geochemical characteristics have the characteristics of abundance in deep source gas and liquid trace elements, a gentle right dip in the distribution pattern of rare-earth elements. (3) Petrological and geochemical characteristics determine the argillaceous rock as the genesis of lacustrine hydrothermal sedimentary rock. The hydrothermal sedimentary model also has been constructed, mainly controlled by tectonic activity of the Altyn Tagh fault from 100 to 120 Ma. The massive argillites with analcite and dolomite would lay the foundation for confirming the site for HLW disposal purposes in China.

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Section: Discussionmentioning

confidence: 99%

Section: Sedimentary Model Of Hydrothermal Rocksmentioning

confidence: 99%

Characteristics and Geological Significance of Lacustrine Hydrothermal Sedimentary Rocks in the Yingejing Sag in Bayingebi Basin, Inner Mongolia, Northwestern China

Dai,

Zhang,

Luo

et al. 2024

ACS Omega

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“…Iding and Ringrose, 2010;Bond et al, 2013Bond et al, , 2017Gholami et al, 2021;Kou et al, 2021), hazardous waste disposal (e.g. Green and Mair, 1983;Gautschi, 2001;Morris et al, 2004;Yu et al, 2021;Ishii, 2022), groundwater management (e.g. Streltsova, 1976;Bachu, 1995;Ferrill et al, 1999;Medici et al, 2021;Moore and Walsh, 2021), hydrocarbon extraction (e.g.…”

Section: Introductionmentioning

confidence: 99%

Natural fracture patterns at Swift Reservoir anticline, NW Montana: the influence of structural position and lithology from multiple observation scales

Cawood,

Watkins,

Bond

et al. 2023

Solid Earth

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Abstract. Subsurface datasets typically lack the resolution or coverage to adequately sample fracture networks in 3D, and fracture properties are typically extrapolated from available data (e.g. seismic data or wellbore image logs). Here we assess the applicability of extrapolating fracture properties (orientation, length, and intensity) across observation scales in deformed, mechanically layered carbonate rocks. Data derived from high-resolution field images, medium-resolution digital outcrop data, and relatively low-resolution satellite imagery at Swift Reservoir anticline, NW Montana are leveraged to (i) assess interacting structural and stratigraphic controls on fracture development, and (ii) compare estimated fracture properties derived from multiple observation scales. We show that hinge-parallel and hinge-perpendicular fractures (i) make up the majority of fractures at the site; (ii) are consistently oriented with respect to the fold hinge, despite along-strike variability in the fold hinge orientation; and (iii) exhibit systematic increases in intensity towards the anticline hinge. These fractures are interpreted as having formed during folding. Other fractures recorded at the site exhibit inconsistent orientations, show no systematic trends in fracture intensity, and are interpreted as being unrelated to fold formation. Fracture orientation data exhibit the greatest agreement across observation scales at hinge and forelimb positions, where hinge-parallel and hinge-perpendicular fracture sets are well developed, and little agreement on the anticline backlimb, where fracture orientations are less predictable and more dispersed. This indicates that the scaling of fracture properties at Swift Reservoir anticline is spatially variable and partly dependent on structural position. Our results suggest that accurate prediction and extrapolation of natural fracture properties in contractional settings requires the assessment of structural position, lithologic variability, and spatially variable fracture scaling relationships, as well as consideration of the deformation history before and after folding.

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How do geometric factors influence soil water retention? A study using computerized microtomography

Camargo

Cássaro

Pires

2022

Bull Eng Geol Environ

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Permeability changes in fractured Tamusu mudstone in the context of radioactive waste disposal

Cited by 16 publications

References 53 publications

Characteristics and Geological Significance of Lacustrine Hydrothermal Sedimentary Rocks in the Yingejing Sag in Bayingebi Basin, Inner Mongolia, Northwestern China

Characteristics and Geological Significance of Lacustrine Hydrothermal Sedimentary Rocks in the Yingejing Sag in Bayingebi Basin, Inner Mongolia, Northwestern China

Natural fracture patterns at Swift Reservoir anticline, NW Montana: the influence of structural position and lithology from multiple observation scales

How do geometric factors influence soil water retention? A study using computerized microtomography

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