Argillaceous sandstone

Synonyms and related words for argillaceous sandstone from OneLook Thesaurus, a powerful English thesaurus and brainstorming tool that lets you describe ...

Freshwater-lake cycles average 5.2 m (17 ft) thick. They consist of basal, transgressive, fluvial to lake-margin deposits that are argillaceous, very fine grained sandstone to coarse siltstone with indistinct lamination, planar or cross lamination, or are disrupted by convolute bedding, desiccation cracks, root casts, soil-ped casts, and tubes.RMT-150B rock mechanics and split Hopkinson pressure bar (SHPB) devices were adopted to investigate the physical and mechanical properties, energy dissipation, and failure modes of argillaceous sandstone after different high temperatures under air-dried and saturation states. In addition, SEM and EDS tests were conducted to …Jul 1, 2021 · The elastic properties of argillaceous sandstones are significantly controlled, however, by the perplexing distribution of dispersed, cemented, and matrix (including structural and layered) clay.... (2016). Wettability of Chalk and Argillaceous Sandstones Assessed from T1/T2 Ratio. Paper presented at 78th EAGE Conference & Exhibition 2016, Vienna, Austria.The strata overlying the aquifer were mudstone intercalated with sandstone and argillaceous sandstone, and weathered fractures were developed in the strata, resulting in weathered fracture water and providing favorable conditions for vertical leakage. Second, the fractures at depths of 30.40 m and 43.30 m were partially filled with calcite …The creep characteristics of sliding zones strongly influence slope deformation and long-term stability, as well as the occurrence of landslide catastrophes. In this paper, large-scale triaxial creep tests were performed on the strongly weathered argillaceous sandstone sliding zone of the Huaipa landslide in the Henan Province, China, to study its creep characteristics and long-term strength ...Oct 12, 2023 · argillaceous: 1 adj resembling or containing clay “ argillaceous rocks” Synonyms: clayey Antonyms: arenaceous , sandlike , sandy resembling or containing or abounding in sand; or growing in sandy areas

Mar 26, 2022 · The well and mud logging data, core samples, and the well-tie sections indicated that the bottom of the Qingshuihe Formation contained pebbly sandstone, gritstone, medium sandstone, fine sandstone, siltstone, argillaceous sandstone, mudstone, and claystone (Fig. 3 and Fig. 11c–d). The above sand bodies are collectively called massive ... The unconsolidated sandstone model (USM; Dvorkin et al., 1996) is applied to rock physics modelling for dispersed argillaceous sandstone (see Appendix C). In contrast, the contact cement theory ( Dvorkin et al ., 1994 ; Guo and Han, 2016 ; Han et al ., 2020 ) (see Appendix D ) is used to calculate the elastic properties of the cemented ... These drilled cuttings have a significant effect on the drilling fluid properties and filter cake structure. During drilling long lateral sandstone formations, ...This shows the permeability coefficient k of argillaceous sandstone decreases with increasing confining pressure P c (Duda and Renner, 2013;Ngai et al., 2013;Alam Badrul et al., 2014; Nazanin ...Medium-gray shale, containing interbedded limestone, dolomite, argillaceous sandstone, dusky-red and grayish-olive mudstone, and minor shaly coal. Mainly restricted to northeastern AL and part of the Sequatchie anticline. Where less than 100 feet thick the formation is included in the Bangor Limestone.Define argillaceous. argillaceous synonyms, argillaceous pronunciation, argillaceous translation, English dictionary definition of argillaceous. or ar·gil·lic adj. Containing, made of, or resembling clay; clayey.The FA4 in well D is a 0.5-ft (0.15-m)-thick, pale yellow, light gray, subrounded to rounded, fine- to medium-grained, well-sorted, massive argillaceous sandstone (Sm), deposited on an erosional scour. FA4 is a generally medium- to coarse-grained, occasionally granular-grained, and moderately to poorly sorted sublithic arenite (Q 92 F 1 L 7).Based on this, this paper took the long-term water immersion of the rock mass with intermittent joints as the background, conducted the water–rock interaction test on the prefabricated sandstone with intermittent joints under different water immersion times, and studied its mechanical properties and deterioration mechanism, to provide a reference for the stability research of intermittent ...

Discriminating the argillaceous sandstone reservoirs into several hydraulic flow units (HFUs) is a useful reservoir zonation technique. This study introduces a statistical method for analyzing ...Discriminating the argillaceous sandstone reservoirs into several hydraulic flow units (HFUs) is a useful reservoir zonation technique. This study introduces a statistical method for analyzing ...argillaceous sandstone. The longitudinal section of geology in this section is shown in Figure 1, and the recommended geo-logical parameters are shown in Table 1. 2.2. Design and Mechanism. In this project, the soft founda-tion treatment by LFCRM is considered. As shown in Figure 2, the design and mechanism are described as follows: 2.2.1. Design.Based on the obtained results, the following conclusions are drawn: (1) As the quartz arenite, calcareous, argillaceous, and ferruginous sandstone formation cutting contents increased in the drilling fluid, the rheological properties (AV, PV, YP, and gel strength) increased (2) For cutting concentrations lower than 15%, the results showed that ...

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According to the geological data (Wu et al., 2021b), the average effective thickness of the reservoir is about 22.5 m and the reservoir rock is tight argillaceous sandstone with average porosity of 9.33% and average permeability of 0.26 mD, suggesting that Zhongjiang Gas Field is a typical ultra low-porosity and low-permeability tight sandstone ...Then, in extensive river and trench systems, the 40 to 60 m thick Stuttgart formation was deposited (k3-sequence, Reed Sandstone). The reason was a more humid ...In this study, the creep behaviours of argillaceous sandstone (AS) were systematically investigated. For the experimental investigation, creep tests were conducted on AS with different confining ...Discriminating the argillaceous sandstone reservoirs into several hydraulic flow units (HFUs) is a useful reservoir zonation technique. This study introduces a statistical method for analyzing ...Request PDF | On Dec 1, 2022, Ying Xu and others published Experimental study on the permeability evolution of argillaceous sandstone under elevated temperatures | Find, read and cite all the ...

Sandstone is a sedimentary rock formed from cemented sand-sized clasts. The cement that binds the clasts can vary from clay minerals to calcite, silica or iron oxides. Sandstone can be further divided according to: Clast size - fine (0.06-0.2mm), medium (0.2-0.6mm), coarse (0.6-2mm); Sorting - a sandstone comprising a mixture of clast sizes is ...ABSTRACT The elastic properties of argillaceous sandstones are significantly controlled, however, by the perplexing distribution of dispersed, cemented and matrix (including structural and layered) clay. The corresponding rock physics models are established to investigate the influence of different clay distribution on the elastic properties of sandstone.Argillaceous rocks make up 50 to 95% of the section and play a key role in the formation of lithologic, mineralogic, geochemical, and thermobaric characteristics of the basin ( Buryakovsky, 1974a, 1993c, 1993d ). Following are the results of a study of argillaceous-rock cores recovered from deep onshore and offshore exploratory and producing ...Nevertheless, argillaceous sandstone is the most predominant rock type in the tunnel alignment. The main lithology encountered along the tunnel route is schematized in Figure 2. Groundwater inflows into the tunnel are mainly facilitated by the unfavorable geological conditions of the surrounding rocks, and the availability of groundwater in the ...Argillaceous sandstone explanation. Define Argillaceous sandstone by Webster's Dictionary, WordNet Lexical Database, Dictionary of Computing, Legal Dictionary, Medical Dictionary, Dream Dictionary.argillaceous: 1 adj resembling or containing clay “ argillaceous rocks” Synonyms: clayey Antonyms: arenaceous , sandlike , sandy resembling or containing or abounding in sand; or growing in sandy areasThe soft red sandstone 6 to 20 feet above the dolomite is very fine-grained and highly calcareous, but the associated white sandstones are essentially noncalcareous and more argillaceous. Norton's thin maroon shale must be classed here as a red (2.5YR5/6) slightly calcareous very argillaceous siltstone; the clay fraction seemingly is ...Argillite. "Argillite" may also refer to Argillite, Kentucky. Grey chunks of graptolitic argillite on Pakri Peninsula, Estonia; yellowish and white chunks are limestone. Argillite ( / ˈɑːrdʒɪlaɪt /) is a fine-grained sedimentary rock composed predominantly of indurated clay particles. Argillaceous rocks are basically lithified muds and oozes.Weathering caused the argillaceous sandstone to form different weathering layers, including the grey-black external layer, the brown-yellow middle layer and the gray-white inner layer, and the ...

Wu, Q. H., Weng, L., Zhao, Y. L. and Feng, F. [2021b] “ Influence of infilling stiffness on mechanical and fracturing responses of hollow cylindrical sandstone under uniaxial compression tests,” Journal of Central South University 28(8), 2485–2498. Crossref, ISI, Google Scholar

The mechanical behaviors including the triaxial strength, yield and peak strains of the argillaceous sandstone are less correlated to the temperature level from …... SANDSTONE AND UPPER INTERBEDS OF DARK GRAY SHALE AND BUFF SILTY SANDSTONE. ... Lithofacies 2 – GREENISH GRAY ARGILLACEOUS SILTSTONE TO BROWNISH GRAY SILTY ...Compared with the triaxial loading test, the strength, peak strain and residual strength of argillaceous sandstone with the same confining pressure under unloading conditions all decrease, and the ...The argillaceous sandstone is mainly damaged by compression shear when triaxially loaded. Since the unloading of the confining pressure will form a tensile-shear crack perpendicular to the unloading direction, the tensile-shear failure is the main damage during triaxial unloading.Test methodology. The selected argillaceous sandstone is the surrounding rock of the tunnel, the maximum burial depth is about 500 m, and the maximum in-situ stress level is about 15 MPa, so the ...Sporadic thin beds of argillaceous sandstone and silty dolomite occur in the lower part of the formation. Beds of thinly interlaminated, dark grey-green mudstone and dolomitic siltstone occur locally towards the top of the formation (formerly separated in the East Midlands as the Glen Parva Formation, Warrington et al., 1980). Halite is ...The sand content of argillaceous rocks accounts for 1.5%, on the average; the silt content ranges from 11 to 50% (average of 21%); and the average content of carbonate …1.2 Effect of Occurrence and Content of Argillaceous Cements on Reservoir Electrical Properties. ... in the argillaceous sandstone formation with dispersed clay minerals mainly composed of hydromica (illite) and montmorillonite; (3) thin interbedding of sand and mudstone. In the Jurassic and Triassic reservoirs in the Shaan Gan Ning …Assuming that each layer of soil is continuous and isotropic, the influence of permeability on the deformation property of the foundation soil is ignored. The upper structure adopts the Mohr–Coulomb primary structure , and the argillaceous sandstone adopts the Burgers creep primary structure . The effects of static loads on the roadbed and ...As a whole the formation is a large body of red calcareous and argillaceous sandstone and shale. "History and Comprehensive Description of Loudoun County, Virginia" by James W. Head. The cliffs at Foul Point and Point Cunningham unite the sandstone and argillaceous formation. "Discoveries in Australia, Volume 1." by J Lort Stokes

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Deterministic seismic inversion generated a best-case reservoir model, which was used to predict zones of increased clay content within the argillaceous sandstone reservoir. Using the established AI-ϕ and AI-γϕ relationships, the ϕ and γϕ were calculated from the acoustic impedance volume, and were depicted spatially and vertically ...Oct 12, 2023 · argillaceous: 1 adj resembling or containing clay “ argillaceous rocks” Synonyms: clayey Antonyms: arenaceous , sandlike , sandy resembling or containing or abounding in sand; or growing in sandy areas ... sandstone DO 3 Argillaceous sandstone. This problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core ...In this test, the argillaceous red sandstone samples were obtained from the −473 m heading face of a coal mine in China. Fig. 1 presents the X-ray diffraction (XRD) pattern of argillaceous red sandstone. It can be seen that the rock sample contains strong hydrophilic clay minerals, such as kaolinite. The pores, microcracks and original ...Sep 27, 2022 · Compared with the triaxial loading test, the strength, peak strain and residual strength of argillaceous sandstone with the same confining pressure under unloading conditions all decrease, and the ... This formation shows the development of coal, carbonaceous shale, mudstone, argillaceous siltstone, siltstone, fine sandstone, calcareous mudstone, and bauxite mudstone, which is a typical unconventional reservoirs. There are some differences in logging responses of different lithology.Discriminating the argillaceous sandstone reservoirs into several hydraulic flow units (HFUs) is a useful reservoir zonation technique. This study introduces a statistical method for analyzing petrophysical data sets, including borehole-logs and core data, to discriminate the main Triassic gas-producing argillaceous sandstone reservoirs in Hassi R'Mel Northern Field in Algeria into some HFUs.Jul 26, 2019 ... The largest group is classified as argillaceous sandstone where fine clay particles that are interspersed with the sand grains are compacted by ...Pouso Alegre é um município brasileiro no estado de Minas Gerais, Região Sudeste do país. Localiza-se no sul mineiro.A vila de Pouso Alegre foi instalada em ...Arenite. Arenite (Latin: arena, "sand") is a sedimentary clastic rock with sand grain size between 0.0625 mm (0.00246 in) and 2 mm (0.08 in) and contain less than 15% matrix. The related adjective is arenaceous.The equivalent Greek-derived term is psammite, though this is more commonly used for metamorphosed sediments.. Since it refers to grain size …The length of the Cretaceous argillaceous sandstone is around 9.15 km, accounting for 29.24% of the total length of the tunnel. The mechanical properties of the Cretaceous argillaceous sandstone were seriously degraded after water infiltration (Fig. 5), poses a serious threat to the safety of the long-term operation of the water tunnel. ….

Argillaceous rocks make up 50 to 95% of the section and play a key role in the formation of lithologic, mineralogic, geochemical, and thermobaric characteristics of the basin ( Buryakovsky, 1974a, 1993c, 1993d ).The subscript s and l represent the structural and layered argillaceous sandstone, respectively. The red, blue and green represent porosity of 5%, 15% and 25%, respectively. The solid and dashed ...In this study, the creep behaviours of argillaceous sandstone (AS) were systematically investigated. For the experimental investigation, creep tests were conducted on AS with different confining ...Sandstone is good for creativity and relationships. It helps easily distracted people and clears thoughts. It is good when used in groups. It is called the stone of creativity as it blends multiple elements to include air, wind, fire, water, and earth to form. $5 Crystal Deals FREE Crystal Book. Spiritual & Emotional Influence:Seventy percent of Earth's crust is composed of these rocks. You will often find shales within the layers of limestone or sandstone rocks. ‌. These rocks are ...Argillaceous sandstone quite commonly is interbedded with or contains thin layers of siltstone, shale, clay, or even coal, and the contacts between layers tend to be sharp. Zones of argillaceous sandstone in the McLouth sand have been found to grade laterally to sandy siltstone, micaceous silty shale, or clay shale. Siltstone In this study, the creep behaviours of argillaceous sandstone (AS) were systematically investigated. For the experimental investigation, creep tests were conducted on AS with different confining pressures (3, 6, 9, 12, 15, and 18 MPa) using an MTS815.02 rock mechanics test system.The average slope angle was 30°, and two village roads ran across the front of the slope. The average thickness of the Quaternary deposit layer was 20 m, and it was composed of weathered sandstone and mudstone with high permeability. The sliding bed consisted of sandstone and argillaceous siltstone of the Jurassic Niejiashan Formation …Due to the variability of fluid properties and saturation of reservoirs, large differences in formation temperature and pressure, and the diversity of rock and mineral compositions, the petrophysical response of reservoirs is often complex. This study explored a new method of reservoir fluid identification and evaluation based on the complex …Argillaceous rocks. Argillaceous rocks are those in which clay minerals are a significant component. For example, argillaceous limestones are limestones consisting predominantly of calcium carbonate, but including 10-40% of clay minerals: such limestones, when soft, are often called marls. Argillaceous sandstone, The unconsolidated sandstone model (USM; Dvorkin et al., 1996) is applied to rock physics modelling for dispersed argillaceous sandstone (see Appendix C). In contrast, the contact cement theory ( Dvorkin et al ., 1994 ; Guo and Han, 2016 ; Han et al ., 2020 ) (see Appendix D ) is used to calculate the elastic properties of the cemented ... , The creep characteristics of sliding zones strongly influence slope deformation and long-term stability, as well as the occurrence of landslide catastrophes. In this paper, large-scale triaxial creep tests were performed on the strongly weathered argillaceous sandstone sliding zone of the Huaipa landslide in the Henan Province, China, to study its creep characteristics and long-term strength ..., Mar 27, 2023 · Calcareous Cement – It has calcites, and forms in patches leaving gaps open, so it makes sandstone porous. Argillaceous Cement – It has clay particles, and forms softer types of sandstone. Ferruginous Cement – It has ferrous content. So, it also is known as Hematite cement and gives reddish hues. Matrix of Sandstone. It is fine material. , Argillaceous Sandstone, Arkosic Sandstone, Sandstone, Shale, Quartzose Sandstone. What is Sandstone. Sandstone is a sedimentary rock mainly made of sand or quartz grains. Although it primarily consists of quartz, it may also contain a considerable amount of feldspar, as well as silt and clay., Request PDF | On Dec 1, 2022, Ying Xu and others published Experimental study on the permeability evolution of argillaceous sandstone under elevated temperatures | Find, …, Feldspathic sandstone, loessial soil, and argillaceous sandstone debris were collected from the slope of the study area, crushed and air-dried indoors, then passed through a 2 mm soil sieve. At the time of sampling, a cutting ring and an aluminum box were used to take rock and soil samples at every 10 cm of soil depth., Request PDF | On Dec 1, 2022, Ying Xu and others published Experimental study on the permeability evolution of argillaceous sandstone under elevated temperatures | Find, read and cite all the ..., Red-bed argillaceous sandstone is a typical kind of soft rock with swelling characteristics, which is prone to resulting in engineering geological problems such as dilation deformation of high-speed railway subgrades/uneven settlement of foundation. This potential engineering geological impact emphasizes the importance of understanding the …, Oct 7, 2018 ... ... sandstone lens (= relatively thin, gray, clay-rich interval with sandy-silty grains); occasional coarsely-crystalline/coarse-grained ..., Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) silicate grains. Sandstones comprise about 20–25% of all sedimentary rocks.. Most sandstone is composed of quartz or feldspar (both silicates) because they are the most resistant minerals to weathering processes at the Earth's surface. Like uncemented …, Shale, argillaceous, pyritic, fossiliferous limestone and argillaceous dolomite: Shallow marine with periodically anoxic conditions: Buwayda • L. Permian: Fine- to medium-grained sandstone, ferruginous, argillaceous sandstone: Fluvial: Syria: Amanus Formation • E. Triassic: Sandstone and siltstone with argillaceous limestone: Marine with ..., Argillaceous sandstone explanation. Define Argillaceous sandstone by Webster's Dictionary, WordNet Lexical Database, Dictionary of Computing, Legal Dictionary, …, Oct 12, 2023 · argillaceous: 1 adj resembling or containing clay “ argillaceous rocks” Synonyms: clayey Antonyms: arenaceous , sandlike , sandy resembling or containing or abounding in sand; or growing in sandy areas , In this test, the argillaceous red sandstone samples were obtained from the −473 m heading face of a coal mine in China. Fig. 1 presents the X-ray diffraction (XRD) pattern of argillaceous red sandstone. It can be seen that the rock sample contains strong hydrophilic clay minerals, such as kaolinite. The pores, microcracks and original ..., Jan 1, 2021 · Discriminating the argillaceous sandstone reservoirs into several hydraulic flow units (HFUs) is a useful reservoir zonation technique. This study introduces a statistical method for analyzing petrophysical data sets, including borehole-logs and core data, to discriminate the main Triassic gas-producing argillaceous sandstone reservoirs in Hassi R'Mel Northern Field in Algeria into some HFUs. , Greywacke is variation of sandstone that saperate from other to hardness, dark color, and poorly sorted angular grains of quartz and feldspar..It is a textural immature sedimentary rock found in the Paleozoic layers. Larger grains can be from sand to pebble length, and matrix materials are in the order of 15% by volume of rocks.A deep color …, As a whole the formation is a large body of red calcareous and argillaceous sandstone and shale. "History and Comprehensive Description of Loudoun County, Virginia" by James W. Head. The cliffs at Foul Point and Point Cunningham unite the sandstone and argillaceous formation. "Discoveries in Australia, Volume 1." by J Lort Stokes , Synonyms and related words for argillaceous sandstone from OneLook Thesaurus, a powerful English thesaurus and brainstorming tool that lets you describe ..., Argillaceous-Sandstone Facies The argillaceous-sandstone facies (Sa) is white,fine to medium grained, subrounded, poorly to moderately sorted, with tiny fragments of pyrite, and friable to, Sandstone: Dirty white, whitish grey, yellowish grey, yellowish white, translucent, i/p transparent, quartzose, abrasive, medium hard to hard, very fine to fine grained, in parts medium grained, sub angular to sub rounded, well to moderately sorted, fairly to well cemented, siliceous, in parts argillaceous, pyretic, glauconitic, in parts mafic ..., hi ⋯hi+n is the thickness of each stratum. γi ⋯γi+n is the density of each stratum; i=1,2,3⋯ When ðqi+n+1Þi <ðqi+nÞi, that is, ðqi+nÞi as the load applied to the i stratum, the result of equation (1) is used as the load on the i stratum to calculate its caving step length. The data in Table 1 is put into equation (1), and the load on each stratum is calculated., argillaceous sandstone 220 10-2 Strongly weathered argillaceous sandstone 360 10-3 Moderately weathered argillaceous sandstone 800 The excavation depth of the foundation pit is mainly 1 layer of miscellaneous fill, 2-1 layer of clayey silt and 2-2 layers of sandy silt; the bottom of the tunnel is located in 2-3 layers of sand paper, fbas: Brecciated argillaceous sandstone: Siltstone to very fine-grained sandstone ~3–6 cm, range from 2 to 15 cm: Sharp bases and tops: Dark-coloured, argillaceous-rich (approx. 15%), abundant elongated mudstone clasts (ranging from 0.5 to 6 cm along A-axis) and carbonaceous fragments, Argillaceous Sandstone; These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves. Download chapter PDF References. Aitken, W. G ..., Stability analysis of gravity anchor foundation of layered argillaceous sandstone under dry-wet cycles. Journal of Mountain Science 2023-04 | Journal article DOI: 10.1007/s11629-022-7610-4 Contributors ..., The elastic properties of argillaceous sandstones are significantly controlled, however, by the perplexing distribution of dispersed, cemented and matrix (including structural and …, Along the Ohio River west of the western Kentucky coal field, the Paint Creek is represented by about 10 ft of argillaceous sandstone (Trace, 1974b). South of this area, the formation thickens to about 100 ft and consists of a basal skeletal limestone, a middle unit of shale and sandstone, and an upper skeletal limestone (Rogers and Trace, 1976). , The evolution of permeability of tight sandstone was investigated under different stress states. A series of hydrostatic compression, triaxial compression, and lateral decompression tests with cooccurrence gas permeability measurement were performed on the tight sandstone samples drilled from an underground abandoned mine in Huainan …, The bedding space of argillaceous sandstone (i.e. matrix) has a tensile-dominant AE events source corresponding to the cracking pattern (Fig. 8), with a larger AE events magnitude, but the bedding structure has a shear-dominant AE events source in a smaller magnitude. The implosive mechanism is mainly concentrated on the upper and …, The objective of this work is to investigate the permeability evolution characteristic of an argillaceous sandstone subjected to coupled triaxial stress and real-time elevated temperature conditions. A series of triaxial compression seepage tests were carried out at four constant temperature levels (20 °C, 40 °C, 80 °C and 100 °C)., These drilled cuttings have a significant effect on the drilling fluid properties and filter cake structure. During drilling long lateral sandstone formations, ..., Sandstone is composed of sand-sized mineral grains, rock fragments, or pieces of fossils that are held together by a mineral cement. The definition of sandstone is based on the size of the grains: It grades into siltstone, shale, or mudstone (grains less than 0.0625 mm in diameter) and conglomerate ( if the grain size exceeds 2 mm1)., Effect of Arenite, Calcareous, Argillaceous, and Ferruginous Sandstone Cuttings on Filter Cake and Drilling Fluid Properties in Horizontal Wells. Geofluids 2019-04-16 | Journal article DOI: 10.1155/2019/1956715 Part of ISSN: 1468-8115 Part of ISSN: 1468-8123 Contributors ...