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1. Hydro-mechanical response of crushed argillite and bentonite mixtures as sealing material

Author:
Robinet, Jean-Claude; Tyri, Danai; Djeran-Maigre, Irini
Source:
Engineering geology 2021 v.288 pp. 106140
ISSN:
0013-7952
Subject:
argillite,   etc   ; bentonite; permeability; radioactive waste; soil fabric;     Show all 5 Subjects
Abstract:
... Mixture of excavated Callovo-Oxfordian (COx) argillite and MX80 bentonite has been proposed as potential sealing material for the French deep geological disposal facility of radioactive waste. The mixtures hydro-mechanical behaviour was studied in order to assess their response on design requirements. At the as-compacted state, soil fabric analysed by the MIP technique, showed single-modal pore di ...
DOI:
10.1016/j.enggeo.2021.106140

2. A Nonlinear Creep Damage Model Considering the Effect of Dry-Wet Cycles of Rocks on Reservoir Bank Slopes

Author:
Wang, Xingang; Lian, Baoqin; Feng, Wenkai
Source:
Water 2020 v.12 no.9
ISSN:
2073-4441
Subject:
argillite,   etc   ; models; water; water power;     Show all 4 Subjects
Abstract:
... Water has a crucial effect on the time-dependent behavior of rocks. The long-term cyclical fluctuations of reservoir water level lead to dry–wet (DW) cycles of rocks on reservoir bank slopes, making this influential factor more complex. To deeply understand the time-dependent behavior of rocks under DW cycles, argillite from the reservoir bank slope of Longtan Hydropower Station was used to perfor ...
DOI:
10.3390/w12092396

3. Assessment of groundwater potential using geophysical data: a case study in parts of Cross River State, south-eastern Nigeria

Author:
Ekwok, Stephen E.; Akpan, Anthony E.; Kudamnya, Ebenezer A.; Ebong, Ebong D.
Source:
Applied water science 2020 v.10 no.6 pp. 144
ISSN:
2190-5487
Subject:
argillite,   etc   ; aquifers; case studies; clay; data collection; geophysics; gravel; groundwater; laterites; limestone; magnetism; marl; permeability; porosity; silt; tectonics; Nigeria;     Show all 17 Subjects
Abstract:
... Groundwater potential of some parts of Cross River State, Nigeria, was assessed involving vertical electrical sounding (VES) and high-resolution aeromagnetic methods (HRAM). The VES and HRAM dataset were used to delineate the hydro-lithostratigraphic units and map the spatial distributions of geologic structures, respectively. The electro-stratigraphic sections revealed the various hydro-lithostra ...
DOI:
10.1007/s13201-020-01224-0

4. Investigation into water retention and gas permeability of Opalinus clay

Author:
Liu, Jiang-feng; Wu, Yu; Cai, Cheng-Zheng; Ni, Hong-yang; Cao, Xu-lou; Pu, Hai; Song, Shuai-bing; Pu, Sheng-yan; Skoczylas, Frédéric
Source:
Environmental earth sciences 2018 v.77 no.5 pp. 213
ISSN:
1866-6280
Subject:
argillite,   etc   ; bentonite; clay; permeability; radioactive waste; safety assessment; Belgium; France;     Show all 8 Subjects
Abstract:
... Opalinus clay (OPA) is currently being investigated as a potential host rock for radioactive waste repository. The construction of this repository will lead to an excavation-damaged zone (EDZ) in the surrounding. Its sealing ability is crucial for the safety assessment of the geological repository. The sealing ability of OPA has a close relationship with its water retention and gas permeability be ...
DOI:
10.1007/s12665-018-7397-3

5. Investigating the deformation and failure characteristics of argillite consequent slope using discrete element method and Burgers model

Author:
Lin, Sih-Siao; Lo, Chia-Ming; Lin, Yi-Ching
Source:
Environmental earth sciences 2017 v.76 no.2 pp. 81
ISSN:
1866-6280
Subject:
argillite,   etc   ; deformation; friction; mathematical models; monitoring;     Show all 5 Subjects
Abstract:
... This paper reports on the use of discrete element method to investigate the deformation and failure characteristics of an argillite consequent slope presenting signs of creeping and deformation. The proposed numerical model (based on Burgers model) takes into account the friction coefficient, bonding stiffness, and strength of the constituent materials, as well as the stiffness and strength of int ...
DOI:
10.1007/s12665-017-6401-7

6. Alteration of 29Si-doped SON68 borosilicate nuclear waste glass in the presence of near field materials

Author:
Bouakkaz, Rachid; Abdelouas, Abdesselam; El Mendili, Yassine; David, Karine; Grambow, Bernd
Source:
Applied geochemistry 2019 v.111 pp. 104436
ISSN:
0883-2927
Subject:
argillite,   etc   ; apatite; calcite; calcium sulfate; clay; corrosion; geochemistry; glass; leaching; magnesium sulfate; magnetite; pyrite; radioactive waste; siderite; silicon; stainless steel;     Show all 16 Subjects
Abstract:
... The leaching of ²⁹Si-doped SON68 French nuclear waste glass was investigated in Callovo-Oxfordian (COx) water in the presence of P235GH stainless steel and COx argillite. Experiments were carried out to understand the effect of near-field materials on the rate of glass dissolution and the migration of ²⁹Si in the claystone core. Tests were performed by using percolation cells containing glass and ...
DOI:
10.1016/j.apgeochem.2019.104436

7. Comparative modelling approaches of hydro-mechanical processes in sealing experiments at the Tournemire URL

Author:
Millard, A.; Mokni, N.; Barnichon, J. D.; Thatcher, K.; Bond, A.; Fraser-Harris, A.; Mc Dermott, C.; Blaheta, R.; Michalec, Z.; Hasal, M.; Nguyen, T. S.; Nasir, O.; Yi, H.; Kolditz, O.
Source:
Environmental earth sciences 2017 v.76 no.2 pp. 78
ISSN:
1866-6280
Subject:
argillite,   etc   ; laboratory experimentation; models; permeability; radioactive waste; waste disposal; France;     Show all 7 Subjects
Abstract:
... In this paper, a comparative modelling exercise from the DECOVALEX-2015 project is presented. The exercise is based on in situ experiments, performed at the Tournemire Underground Research Laboratory (URL), run by the IRSN (Institut de Radioprotection et de Sûreté Nucléaire), in France. These experiments aim at identifying conditions (e.g. technical specifications, design, construction, and defect ...
DOI:
10.1007/s12665-016-6324-8

8. An unsaturated hydro-mechanical modelling of two in-situ experiments in Callovo-Oxfordian argillite

Author:
Charlier, Robert; Collin, Frédéric; Pardoen, Benoît; Talandier, Jean; Radu, Jean-Pol; Gerard, Pierre
Source:
Engineering geology 2013 v.165 pp. 46-63
ISSN:
0013-7952
Subject:
argillite,   etc   ; compressibility; engineering; models;     Show all 4 Subjects
Abstract:
... The unsaturated behaviour of Callovo-Oxfordian argillite is investigated through the modelling of 2 in-situ experiments. The first test studies the influence of ventilation in a gallery on the hydro-mechanical behaviour of the rock mass. The second test consists in a gas injection in the rock mass from an experimental borehole. A hydro-mechanical model is described and used in the modelling of the ...
DOI:
10.1016/j.enggeo.2013.05.021

9. Low drilling frequency in Norian benthic assemblages from the southern Italian Alps and the role of specialized durophages during the Late Triassic

Author:
Tackett, Lydia S.; Tintori, Andrea
Source:
Palaeogeography, palaeoclimatology, palaeoecology 2019 v.513 pp. 25-34
ISSN:
0031-0182
Subject:
argillite,   etc   ; Bivalvia; Cenozoic era; Gastropoda; Late Cretaceous epoch; Triassic period; arthropods; basins; benthic organisms; databases; diagenesis; drilling; fossils; limestone; paleoecology; predation; predators; reptiles; shale; sharks; Alps region; Italy;     Show all 22 Subjects
Abstract:
... Drillholes represent one of the clearest lines of evidence for predation of benthic invertebrates in the fossil record and are frequently used as a primary proxy for predation intensity in the fossil record. Drillholes are abundant in the late Cretaceous and Cenozoic, but their occurrence is patchy in older deposits of the Mesozoic. The inconsistent record of drillholes in pre-Cretaceous deposits ...
DOI:
10.1016/j.palaeo.2018.06.034

10. Engineered damage zone sealing during a water injection test at the Tournemire URL

Author:
Thatcher, K. E.; Bond, A. E.; Norris, S.
Source:
Environmental earth sciences 2016 v.75 no.11 pp. 933
ISSN:
1866-6280
Subject:
argillite,   etc   ; clay; mathematical models; radioactive waste; waste disposal;     Show all 5 Subjects
Abstract:
... Low-permeability clay formations provide good candidate host rocks for geological disposal of radioactive waste, because there is expected to be limited movement of gas or water through the formation. However, when constructing tunnels, the stress state in the formation around the tunnel will change, which can lead to damage to the formation, changing the bulk hydraulic properties of the formation ...
DOI:
10.1007/s12665-016-5739-6

11. Comparison of quantified and chart GSI for four rock masses

Author:
Bertuzzi, Robert; Douglas, Kurt; Mostyn, Garry
Source:
Engineering geology 2016 v.202 pp. 24-35
ISSN:
0013-7952
Subject:
argillite,   etc   ; data collection; engineering; sandstone; shale; Greenland; New Zealand;     Show all 7 Subjects
Abstract:
... This paper discusses the Geological Strength Index (GSI). It provides data from four different rock masses to extend the case history offered by Hoek et al. (2013) in their paper that proposes to quantify GSI with RQD and the joint condition rating of RMR.The correlation between the GSI assessed from its chart and the quantified GSI was found to be fair for the datasets from the four rock masses; ...
DOI:
10.1016/j.enggeo.2016.01.002

12. Coupled THMC models for bentonite in an argillite repository for nuclear waste: Illitization and its effect on swelling stress under high temperature

Author:
Zheng, Liange; Rutqvist, Jonny; Xu, Hao; Birkholzer, Jens T.
Source:
Engineering geology 2017 v.230 pp. 118-129
ISSN:
0013-7952
Subject:
argillite,   etc   ; bentonite; decision making; engineering; hydrology; mechanical properties; mineral content; radioactive waste; simulation models; temperature;     Show all 10 Subjects
Abstract:
... Subsurface manipulations such as those expected from the disposal of heat-emanating radioactive waste in deep repositories can induce strongly coupled Thermal (T), hydrological (H), mechanical (M) and chemical (C) processes. Adequate coupled THMC models are highly desirable or even indispensable for performance assessment of such repositories, for examples for the analysis of bentonite-based engin ...
DOI:
10.1016/j.enggeo.2017.10.002

13. Spatial distribution of altered minerals in the Gadag Schist Belt (GSB) of Karnataka, Southern India using hyperspectral remote sensing data

Author:
Rani, Nisha; Mandla, Venkata Ravibabu; Singh, Tejpal
Source:
Geocarto international 2017 v.32 no.3 pp. 225-237
ISSN:
1752-0762
Subject:
argillite,   etc   ; absorption; gneiss; granite; hematite; kaolinite; muscovite; soil; spatial data; spectroradiometers; transition elements; wavelengths; weathering; India;     Show all 14 Subjects
Abstract:
... Spatial distribution of altered minerals in rocks and soils in the Gadag Schist Belt (GSB) is carried out using Hyperion data of March 2013. The entire spectral range is processed with emphasis on VNIR (0.4–1.0 μm) and SWIR regions (2.0–2.4 μm). Processing methodology includes Fast Line-of-sight Atmospheric Analysis of Spectral Hypercubes correction, minimum noise fraction transformation, spectral ...
DOI:
10.1080/10106049.2015.1132484

14. Stone pipe-making tools in ancient North America

Author:
Law de Lauriston, P.B. MacLaren; Odell, George H.; Lambert-Law de Lauriston, Timothy
Source:
Journal of archaeological science 2015 v.57 pp. 32-41
ISSN:
0305-4403
Subject:
argillite,   etc   ; archaeology; manufacturing; models; pipes; raw materials; North America;     Show all 7 Subjects
Abstract:
... Several types of smoking pipes have been manufactured and used throughout later prehistoric and historic times around the world. Although substantial information exists on the styles of these pipes, little is known about their methods of manufacture or the types of sites on which they were made. This study focuses on testing a postulated model of pipe manufacture through the experimental replicati ...
DOI:
10.1016/j.jas.2015.02.014

15. The effect of furnace and flash heating on COx argillite for the synthesis of alkali-activated binders

Author:
Gharzouni, A.; Dupuy, C.; Sobrados, I.; Joussein, E.; Texier-Mandoki, N.; Bourbon, X.; Rossignol, S.
Source:
Journal of cleaner production 2017 v.156 pp. 670-678
ISSN:
0959-6526
Subject:
argillite,   etc   ; aluminum; carbonates; furnaces; heat; heat treatment; illite; kaolinite; mica; muscovite; plagioclase; quartz; radioactive waste; smectite; temperature; waste disposal;     Show all 16 Subjects
Abstract:
... A considerable quantity of Callovo-Oxfordian (COx) argillite will be excavated due to deep geological radioactive waste disposal. Till now, there is no viable solution to make use of the excavated argillite. This paper investigates the possibility of producing alkali-activated materials based on argillite. The raw argillite is mainly composed of illite, smectite, muscovite and traces of kaolinite ...
DOI:
10.1016/j.jclepro.2017.04.056

16. Morphogenetic features of soils in the Cat Tien National Park, southern Vietnam

Author:
Khokhlova, O. S.; Myakshina, T. N.; Kuznetsov, A. N.; Gubin, S. V.
Source:
Eurasian soil science 2017 v.50 no.2 pp. 158-175
ISSN:
1064-2293
Subject:
argillite,   etc   ; Cambisols; Fluvisols; Regosols; Umbrisols; clay; loam soils; national parks; sandy soils; tephra; topography; tropical soils; Vietnam;     Show all 13 Subjects
Abstract:
... Morphogenetic features of soils on the selected plots in the Cat Tien National Park in southern Vietnam have been studied with the use of a set of morphological, analytical, and instrumental methods. The lithological factor and topographic position play the leading role in the development of the particular genetic soil features. The soils can be subdivided into four groups according to these facto ...
DOI:
10.1134/S1064229316120085

17. Modelling tidal notch formation by wetting and drying and salt weathering

Author:
Trenhaile, Alan S.
Source:
Geomorphology 2014 v.224 pp. 139-151
ISSN:
0169-555X
Subject:
argillite,   etc   ; basalt; drying; models; prediction; sandstone; weathering; Canada;     Show all 8 Subjects
Abstract:
... The formation and morphology of marine notches formed by tidal wetting and drying and salt weathering was modelled for 6 micro- to megatidal environments. The model used published tidal-elevation-dependent weathering and erosional data from 1- to 3-year experiments conducted on more than 2000 sandstone, argillite, and basalt samples from eastern Canada. The model analysed annual tidal predictions ...
DOI:
10.1016/j.geomorph.2014.07.014

18. Antioxidant plant metabolites affect leaching of mineral elements from Callovo‐Oxfordian clays

Author:
Ubersfeld, D.; Leyval, C.; Redon, P. O.; Mustin, C.
Source:
European journal of soil science 2018 v.69 no.2 pp. 348-359
ISSN:
1351-0754
Subject:
argillite,   etc   ; air; aluminum; anions; antioxidants; calcium; carvacrol; cations; chlorine; clay; iron; leachates; leaching; linalool; magnesium; metabolites; nitrates; oxidation; phosphates; potassium; pyrite; root exudates; soil; soil minerals; sulfates; thymol; weathering;     Show all 27 Subjects
Abstract:
... Minerals excavated during industrial activities are stored on the soil surface, exposed to weathering, which leads to the initial development of soil. Plants contribute to soil mineral weathering, mainly by producing acidic or complexing root exudates. In addition, many plants produce antioxidant compounds and phenolic substances that could also contribute to mineral transformation processes, but ...
DOI:
10.1111/ejss.12505

19. Contact angles at the water–air interface of hydrocarbon-contaminated soils and clay minerals

Author:
Sofinskaya, O. A.; Kosterin, A. V.; Kosterina, E. A.
Source:
Eurasian soil science 2016 v.49 no.12 pp. 1375-1381
ISSN:
1064-2293
Subject:
argillite,   etc   ; Chernozems; kaolinite; mathematical models; contact angle; hydrocarbons; hydrophilicity; oils; gray forest soils; soil water; hydrophobicity; kerosene; oxidation; humus;     Show all 14 Subjects
Abstract:
... Contact angles at the water–air interface have been measured for triturated preparations of clays and soils in order to assess changes in their hydrophobic properties under the effect of oil hydrocarbons. Tasks have been to determine the dynamics of contact angle under soil wetting conditions and to reveal the effect of chemical removal of organic matter from soils on the hydrophilicity of prepara ...
DOI:
10.1134/S1064229316120115

20. Experimental study of elastic properties of different constituents of partially saturated argillite using nano-indentation tests

Author:
Auvray, C.; Arnold, G.; Armand, G.
Source:
Engineering geology 2015 v.191 pp. 61-70
ISSN:
0013-7952
Subject:
argillite,   etc   ; clay; clay minerals; engineering; mechanical properties; quartz; relative humidity; saturated conditions; statistical analysis; temperature; France;     Show all 11 Subjects
Abstract:
... Callovo-Oxfordian argillite, obtained from the ANDRA underground research laboratory in Meuse/Haute-Marne (France), is characterized as a multiphase material. The argillite is composed of carbonate inclusions (10–50μm) embedded in an argillaceous matrix (representing expanding clay minerals, such as smectites). The matrix itself is also multiphase, composed of clay aggregates of 1μm-size carbonate ...
DOI:
10.1016/j.enggeo.2015.02.010