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Journal Article
Published: 08 August 2024
Environmental & Engineering Geoscience (2024) 30 (3): 161–171.
... included 4C, 4D, 6C, 6D, 8C, 8D, 10C, 10D, 12C, 12D, 19, 20, 21, and 22. Across the site, the surface material (0–0.6 m) is dark organic-rich topsoil, which is underlain by a clay loam (0.6–1.5 m). Between 1.5 and 2 m, the clay loam coarsens with an increasing sand and gravel percentage. The coarse...
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First thumbnail for: Transport and Fate of Nitrate in a Saturated Buffe...
Second thumbnail for: Transport and Fate of Nitrate in a Saturated Buffe...
Third thumbnail for: Transport and Fate of Nitrate in a Saturated Buffe...
Journal Article
Published: 09 July 2024
Journal of the Geological Society (2024) 181 (5): jgs2024-012.
..., with less resistant lithologies that did not generate or preserve gravel-sized particles. These softer coastal cliffs were mostly characterized by low-angle, unconformity-bounded sandstones and fine-grained deposits, precluding the preservation and recognition of Mesozoic rocky shores in much of the North...
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First thumbnail for: Facies models for rocky shorelines and their appli...
Second thumbnail for: Facies models for rocky shorelines and their appli...
Third thumbnail for: Facies models for rocky shorelines and their appli...
Journal Article
Published: 21 November 2023
Quarterly Journal of Engineering Geology and Hydrogeology (2024) 57 (1): qjegh2023-076.
... (%) LL (%) PL (%) Percentage passing by weight from sieve No. 4 10 40 200 Clay (%) Silt (%) Sand (%) Gravel (%) 1 D 0 1.5 20 43 23 38 29 33 0 Fill material (silty sandy clay 2 S.S. 1.5 2 13 Fill material (silty sandy clay + crushed brick 3 U 2.5 3 29...
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First thumbnail for: Initial assessment of soil liquefaction potential ...
Second thumbnail for: Initial assessment of soil liquefaction potential ...
Third thumbnail for: Initial assessment of soil liquefaction potential ...
Journal Article
Published: 10 October 2023
Quarterly Journal of Engineering Geology and Hydrogeology (2023) 56 (4): qjegh2021-134.
... soils from the slopes of Mt Lekoumou (Republic of the Congo), a banded iron formation ridgeline overlain by loose, unconsolidated clayey gravel. Aside from the uppermost slopes, the area is overlain by colluvium of varying thickness, the target of testing here. Goethite, kaolinite and hematite...
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First thumbnail for: Engineering properties of tropical transported soi...
Second thumbnail for: Engineering properties of tropical transported soi...
Third thumbnail for: Engineering properties of tropical transported soi...
Journal Article
Published: 29 August 2023
Canadian Journal of Earth Sciences (2024) 61 (1): 86–101.
...Gregory M.D. Hartman; Steven M. Pawley; Daniel J. Utting; Nigel Atkinson; Jessica E. Liggett Basal gravel and sand mantling the bedrock floors of buried valleys throughout the Canadian Interior Plains, and conformably overlying proglacial lacustrine sediment, comprise the Empress Group. While...
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First thumbnail for: The Empress Group in Alberta, Canada
Second thumbnail for: The Empress Group in Alberta, Canada
Third thumbnail for: The Empress Group in Alberta, Canada
Journal Article
Journal: GSA Bulletin
Published: 25 August 2023
GSA Bulletin (2024) 136 (5-6): 1769–1786.
... than that from the north dipping limb ( I s = +34.2°). The results of syntectonic-sedimentation-correction and the fluvial gravel deposits present in the Abushan Fm redbeds sampled support the contention that the apparent inclination discrepancy is attributed to the syntectonic growth strata...
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First thumbnail for: New Late Cretaceous paleomagnetic and geochronolog...
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Journal Article
Journal: Geology
Published: 19 July 2023
Geology (2023) 51 (10): 914–918.
... about the processes associated with this important climatic tipping point. We describe an outstanding sand and gravel outcrop at Gröbming in the Enns Valley (Ennstal), Austria, that represents the development of a delta complex that debouched into a large body of water that we name paleo-Lake Gröbming...
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First thumbnail for: A window into development of a complex ice-margina...
Second thumbnail for: A window into development of a complex ice-margina...
Journal Article
Published: 19 June 2023
Quarterly Journal of Engineering Geology and Hydrogeology (2023) 56 (3): qjegh2022-119.
...Ye Lu; Yangyu Hu Abstract Gravel soil slopes are not only prevalent in nature but also are widely used in engineering. Understanding the damage characteristics of gravel soil slopes and preventing slope hazards requires a thorough investigation of the stability and deformation of gravel soil slopes...
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First thumbnail for: Multi-scale investigation on the stability of soil...
Second thumbnail for: Multi-scale investigation on the stability of soil...
Third thumbnail for: Multi-scale investigation on the stability of soil...
Journal Article
Published: 01 June 2023
Jour. Geol. Soc. India (2023) 99 (6): 868–874.
... (bgl). At or near the surface, fine to very fine sand, occasionally mixed with clay, occurs to a depth of 3- 5 m bgl. Within 200 m bgl, a 150 to 180 m thick granular zone consisting of coarse sand and gravel may be found across the region, although local clay lenses have been discovered at modest...
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First thumbnail for: Spatiotemporal Analysis and Trend Detection of Gro...
Second thumbnail for: Spatiotemporal Analysis and Trend Detection of Gro...
Third thumbnail for: Spatiotemporal Analysis and Trend Detection of Gro...
Series: Geological Society, London, Special Publications
Published: 31 March 2023
DOI: 10.1144/SP515-2020-196
EISBN: 9781786205872
... Table 1. Dated sites in a gravel context ( Fig. 2h ) Sample no. Site name Date Reference Period 1 Attirampakkam 385 ± 64 ka Akhilesh et al. (2018) Middle Palaeolithic 2 Durkadi Nalla <100 ka (OSL) Chauhan et al. (2013) Core and Flake (Oldowan...
Journal Article
Published: 24 August 2022
Journal of Sedimentary Research (2022) 92 (8): 739–750.
...Jerónimo Pan; Diana G. Cuadrado; Nora K. Noffke ABSTRACT Microbial mats are layered consortia of microorganisms colonizing surface sediments that alter their physical and chemical characteristics. The northern Patagonia coastline (Argentina) includes gravel deposits (termed rodados Patagónicos...
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First thumbnail for: Microbial-mat colonization of modern <span class="...
Second thumbnail for: Microbial-mat colonization of modern <span class="...
Third thumbnail for: Microbial-mat colonization of modern <span class="...
Series: GSA Special Papers
Published: 21 June 2022
DOI: 10.1130/2022.2557(27)
EISBN: 9780813795577
... (2009) . The gravel body of the terrace with a tread extending from 5 to 6 m above present-day riverbed in both sections, may refer to a Qt8 fill terrace with an averaged calibrated age of 6 ± 1 ka, whereas the tread extending from 4 to 5 m above river in section ESI-2 ( Fig. 5C ) may refer to a Qt9...
Journal Article
Journal: Lithosphere
Publisher: GSW
Published: 16 June 2022
Lithosphere (2022) 2022 (Special 10): 1334579.
... normal stresses. The results show that the fluctuation of shear stress-displacement curve of bimrocks with round gravels of large particle size is relatively gentle, and the fluctuation of residual strength is relatively small. Under low normal stress, the peak shear strength of bimrocks with round...
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First thumbnail for: Effect of Cementation Degree on Shear Characterist...
Second thumbnail for: Effect of Cementation Degree on Shear Characterist...
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Journal Article
Published: 01 June 2022
Italian Journal of Geosciences (2022) 141 (2): 216–229.
... in seismic hazard assessment. In this study, 109 sites of gravel liquefaction related to 27 historical earthquakes from 1891 to 2020 are reported, with a wide range of moment magnitudes, M w (5.3 to 9.2) and focal depths (5.4 to 33 km), highlighting the potential for liquefaction of gravelly soils even...
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First thumbnail for: Liquefaction assessment of gravelly soils: the rol...
Second thumbnail for: Liquefaction assessment of gravelly soils: the rol...
Third thumbnail for: Liquefaction assessment of gravelly soils: the rol...
Journal Article
Published: 09 May 2022
Scottish Journal of Geology (2022) 58 (1): sjg2021-010.
..., grouped into five associations: aggradational talus cone, progradational talus cone, debris flow lobe, fan surface aqueous-alluvial deposits, and gravel barform deposits. These comprise medial and proximal alluvial fan deposits, controlled by autogenic scour and avulsion along with general fan...
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First thumbnail for: Facies analysis of the Greywacke Conglomerate Form...
Second thumbnail for: Facies analysis of the Greywacke Conglomerate Form...
Third thumbnail for: Facies analysis of the Greywacke Conglomerate Form...
Journal Article
Published: 01 May 2022
Russ. Geol. Geophys. (2022) 63 (5): 590–606.
... depression are developed not only in sand–silty sediments but also in relatively lowly liquefied soils (clay, gravel, and pebbles). These structures formed under both unstable and stable density stratification of the sediment (for example, clay-on-sand), and K syn = 0.3–2.5. Thus, the formation of convolute...
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First thumbnail for: Genesis of Convolutions in Lacustrine Complexes in...
Second thumbnail for: Genesis of Convolutions in Lacustrine Complexes in...
Third thumbnail for: Genesis of Convolutions in Lacustrine Complexes in...
Journal Article
Journal: Geophysics
Published: 18 November 2021
Geophysics (2022) 87 (1): WA27–WA38.
... (airborne silt) overlays basalt, one set of inland silty soil sites, one site on peat soils overlying sandy gravels, and two sites in coastal sands. The geophysical responses of the sites cluster into three groups: Horizontal loop electromagnetic (HLEM) and magnetic field methods worked well for the clay...
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First thumbnail for: Imaging indigenous sacred sites: A tale of clay, s...
Second thumbnail for: Imaging indigenous sacred sites: A tale of clay, s...
Third thumbnail for: Imaging indigenous sacred sites: A tale of clay, s...
Journal Article
Published: 01 November 2021
Russ. Geol. Geophys. (2021) 62 (11): 1308–1329.
... composition (conditional profiles are oriented downstream). B , location of sections on the satellite image (Landsat-ETM+). C , situational schemes of the key sites based on 1:20,000 topographic map (Topografikunta, 1938). 1 , boulders, 2 , blocks, 3 , pebble, 4 , gravel, 5 , sand, 6 , loamy sand, 7...
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First thumbnail for: Age, Genesis, and Seismogenic Deformations of the ...
Second thumbnail for: Age, Genesis, and Seismogenic Deformations of the ...
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Journal Article
Published: 01 November 2021
Earthquake Spectra (2021) 37 (4): 2920–2945.
... were rejected if inferred from geospatial autocorrelation analyses (Anselin, 1995) to have terminated prematurely (e.g. due to impedance from gravel), such that liquefiable soils potentially exist at greater depth. The local geology of Christchurch is well characterized, with dense, non-liquefiable...
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First thumbnail for: CPT-based liquefaction case histories compiled fro...
Second thumbnail for: CPT-based liquefaction case histories compiled fro...
Third thumbnail for: CPT-based liquefaction case histories compiled fro...
Journal Article
Published: 01 November 2021
Journal of Environmental and Engineering Geophysics (2021) 26 (3): 183–193.
... groundwater is increasing to fulfill the water supply. Shallow sand and gravel aquifers within the glacial deposits of the area specifically are high volume aquifer and less stressed compare to deeper bedrock aquifer. Yet, these aquifers are poorly understood in terms of their extent and lateral variability...
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First thumbnail for: Seismic Shear-Wave Characterization of Sand and <s...
Second thumbnail for: Seismic Shear-Wave Characterization of Sand and <s...
Third thumbnail for: Seismic Shear-Wave Characterization of Sand and <s...