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colluvium

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Journal Article
Journal: GSA Bulletin
Published: 23 August 2023
GSA Bulletin (2023)
... is actively accreting vertically by overbank deposition, with fine-medium sand, silt, and clay being deposited at rates of 0 0.75 cm/yr. Bodek et al. (2021) described frequent exposures of bedrock and colluvium along the margins of the channel. They demonstrated that sediment in modern gravel bars consists...
Series: Geological Society, London, Special Publications
Published: 31 March 2023
DOI: 10.1144/SP515-2020-181
EISBN: 9781786205872
.... The sites discussed here are located along the southeastern fringe of the Ayodhya Hills ( Fig. 1 ) Fig. 1. Imagery (ESRI) of the Ayodhya Hills, Purulia, showing sites (1, Mahadebbera; 2, Kana; 3, Khududih-Chauniya) strewn with lithic artefacts on the pediment slope badland surface over colluvium...
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Series: Geological Society, London, Special Publications
Published: 31 March 2023
DOI: 10.1144/SP515-2020-234
EISBN: 9781786205872
... District to join the Hiran River. On either side of the ridge the river seems to have cut into rubble deposits of subangular quartzite/sandstone at the base of the slope. Within the exposed colluvium deposit and along its dry bed are primarily rolled artefacts of quartzite including large cores, flakes...
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Journal Article
Published: 17 March 2023
Quarterly Journal of Engineering Geology and Hydrogeology (2023) 56 (2): qjegh2022-078.
.... In the Cincinnati and northern Kentucky metropolitan area, USA, landslides develop in colluvium that covers the steep slopes along the Ohio River and its tributaries. Here we quantify elevation changes in a slow-moving colluvial landslide over 14 years using county-wide lidar, uncrewed aerial vehicle (UAV...
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Journal Article
Published: 01 September 2022
Russ. Geol. Geophys. (2022) 63 (9): 1036–1049.
... of varying grain size is similar to that in the slope deposits. The complex characteristics of the lacustrine sediments that formed in cold and warm periods are consistent with the distribution of these parameters in various fractions of deluvium and colluvium. Moreover, the fine-grained material acquired...
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Journal Article
Published: 01 December 2021
South African Journal of Geology (2021) 124 (4): 915–926.
...J. Knight Abstract Slope and lowland sediment systems throughout southern Africa are dominated by the presence of colluvium with interbedded palaeosols and hardground duricrusts. These sediments correspond to phases of land surface instability and stability, respectively, during the late Quaternary...
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Journal Article
Published: 24 November 2021
Environmental & Engineering Geoscience (2021) 27 (4): 471–486.
..., including circular failures within the colluvium deposits, circular failures within the weathered shale, and planar failures within the weathered shale. The results show that the geology-slope model yields an area under the ROC curve ranging from 53 percent to 62 percent. The area under the ROC curve...
Journal Article
Published: 01 November 2021
Russ. Geol. Geophys. (2021) 62 (11): 1285–1295.
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Journal Article
Journal: Geology
Published: 30 September 2021
Geology (2022) 50 (1): 54–59.
... into colluvium, allowing both processes to be dated with optically stimulated luminescence (OSL). OSL ages indicate a period of increased colluviation in the Late Pleistocene facilitated by enhanced bedrock weathering and dust deposition. Hillslope aspect strongly controls predominant soil environments...
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Journal Article
Journal: Geosphere
Published: 21 July 2021
Geosphere (2021) 17 (5): 1517–1533.
... on the paleoearthquakes, radiocarbon and optically stimulated luminescence (OSL) ages from the Buffalo Bowl trench constrained the age of the hillslope deposits and hence the age of the fault scarp. The age data indicate that the ~3-m-thick alluvial fan and slope colluvium sediments were deposited between ca. 15 and ca...
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Journal Article
Published: 08 July 2021
Quarterly Journal of Engineering Geology and Hydrogeology (2021) 54 (4): qjegh2021-023.
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Journal Article
Journal: Geosphere
Published: 06 May 2021
Geosphere (2021) 17 (3): 711–738.
... sorted cobble gravel interbedded with laminated sand and clayey-silt layers, which we interpret as colluvium and avalanche-related deposits interbedded with meltwater silt and clay. The finer-grained layers are gently warped but show an overall dip of ~20°–25° east, slightly steeper than the current...
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Journal Article
Published: 11 March 2021
Environmental & Engineering Geoscience (2021) 27 (3): 307–318.
... of approximately 80 percent shale inter-bedded with 20 percent limestone. The colluvium that forms from the weathering of the shale bedrock consists of a low-plasticity clay. Based on field observations, LiDAR data, and information gathered from city and county agencies, we created a landslide inventory map...
Journal Article
Published: 08 November 2019
Environmental & Engineering Geoscience (2019) 25 (4): 272–288.
... design of stabilization. Engineering Geology Landslides Instrumentation Modeling Remediation Additional data connected with slope stratification and colluvium depths were detected using 2D GPR RAMAC (random access method of accounting and control) scanning ( Figure 3 ). This allowed...
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Journal Article
Published: 25 October 2019
Geological Magazine (2020) 157 (4): 573–602.
... and adjacent slope-sediment (colluvium) composition. Palaeosols, particularly red-brown terra rossa, developed on abandoned fluvial terraces and adjacent hillslopes, especially overlying F3 surfaces. The combined evidence allows close correlation of the Vasilikos river and quarry deposits. Relatively coarse...
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Journal Article
Journal: Geology
Published: 19 June 2019
Geology (2019) 47 (9): 811–814.
... vary spatially in the topographically and lithologically diverse Grand Staircase region of southern Utah. We analyzed detrital 10 Be concentrations from quartz in 52 samples of modern channel alluvium/colluvium from catchments ranging from 0.01 to 1200 km 2 , using standard methods for 10...
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Journal Article
Published: 12 September 2018
Geological Magazine (2019) 156 (7): 1190–1200.
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Journal Article
Journal: GSA Bulletin
Published: 14 May 2018
GSA Bulletin (2018) 130 (11-12): 1903–1917.
... Be and 26 Al measurements of surface material and buried clasts to estimate the residence time and depositional history of colluvium within Garner Run, a 1 km 2 headwater valley in the central Appalachian Mountains containing relict Pleistocene periglacial features, including solifluction lobes, boulder...
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Series: GSA Field Guide
Published: 29 March 2018
DOI: 10.1130/2018.0050(06)
EISBN: 9780813756509
... of thrust faults exposed in a drainage ditch that thrust Conasauga Shale against Quaternary colluvium in the footwall; and (3) a normal fault at Tellico Lake near Vonore, Tennessee, with Quaternary sediments faulted against Conasauga Shale. INTRODUCTION The 045°-trending Eastern Tennessee seismic...
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Journal Article
Published: 01 June 2017
Italian Journal of Geosciences (2017) 136 (2): 198–205.
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