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Journal articles on the topic 'Alluvial fan'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Chant, Lawrence J. De, Patrick P. Pease, and Vatche P. Tchakerian. "Modelling alluvial fan morphology." Earth Surface Processes and Landforms 24, no. 7 (1999): 641–52. http://dx.doi.org/10.1002/(sici)1096-9837(199907)24:7<641::aid-esp979>3.0.co;2-3.

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Larson, Phillip H., Ronald I. Dorn, Douglas J. Faulkner, and Donald A. Friend. "Toe-cut terraces." Progress in Physical Geography: Earth and Environment 39, no. 4 (2015): 417–39. http://dx.doi.org/10.1177/0309133315582045.

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Alluvial fans and fluvial terraces occur in nearly all climatic settings and often coexist within the same drainage basin. These landforms play an important role in understanding the geomorphic, hydrologic, sedimentologic and erosional histories of a basin. The juxtaposition of fans and fluvial terraces, in some instances, can lead to misinterpretation in distinguishing traditional fluvial terraces from the truncated toe of tributary alluvial fans. This becomes particularly troublesome for those attempting to interpret results from published field studies where fan-cut terrace, truncated alluv

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Chakraborty, Partha Pratim, Tapan Pal, Tanay Dutta Gupta, and Kalyan Surya Gupta. "Facies Pattern and Depositional Motif in an Immature Trench-Slope Basin, Eocene Mithakhari Group, Middle Andaman, India." Journal Geological Society of India 53, no. 3 (1999): 271–84. http://dx.doi.org/10.17491/jgsi/1999/530301.

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Abstract Detailed facies analysis in Eocene Mithakhari Group reveals eight different lithofacies of wide ranging paleogeographic significance. These facies are i) disorganised matrix-supported conglomerate, ii) graded matrix-supported conglomerate, iii) graded pebbly sandstone, iv) massive and thick-bedded sandstone, v) plane laminated and cross-stratified sandstone, vi) interbedded sandstone and mudstone, vii) massive to faintly laminated shale and viii) interbedded shale and coal; which are grouped into-five different facies associations (FA). viz. Subaerial alluvial plain (FAl), Shallow wat

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Kim, Jisu, Kyung Sik Woo, Kwang Choon Lee, and Young Kwan Sohn. "Overnight formation of a bouldery alluvial fan by a torrential rain in a granitic mountain (Mt. Seoraksan, Republic of Korea)." Sedimentary Record 19, no. 2 (2021): 5–11. http://dx.doi.org/10.2110/sedred.2021.2.2.

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Mt. Seoraksan, Korea, is a rugged granitic mountain where extremely steep slopes and strongly seasonal rainfall have facilitated bedrock exposure and geomorphic changes mainly by rockfalls and streamflows. Although the environment was not suitable for alluvial fan formation, a bouldery alluvial fan, 170 m long and 330 m wide, formed overnight by a heavy summer rain in 2006. The fan consists of several meter-high boulder mounds and gently undulating cobble bars/sheets that are arranged in a fluvial longitudinal bar-like pattern. They are interpreted to have formed by highly competent and turbul

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Cavalli, M., and L. Marchi. "Characterisation of the surface morphology of an alpine alluvial fan using airborne LiDAR." Natural Hazards and Earth System Sciences 8, no. 2 (2008): 323–33. http://dx.doi.org/10.5194/nhess-8-323-2008.

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Abstract. Alluvial fans of alpine torrents are both natural deposition areas for sediment discharged by floods and debris flows, and preferred sites for agriculture and settlements. Hazard assessment on alluvial fans depends on proper identification of flow processes and their potential intensity. This study used LiDAR data to examine the morphology of the alluvial fan of a small alpine stream (Moscardo Torrent, Eastern Italian Alps). A high-resolution DTM from LiDAR data was used to calculate a shaded relief map, plan curvature and an index of topographic roughness based on the standard devia

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Liu, Wei Fu, Shuang Long Liu, and Li Xin Sun. "Sedimentary Characteristics and Reservoir Potential of Underwater Alluvial Fan." Advanced Materials Research 912-914 (April 2014): 1525–28. http://dx.doi.org/10.4028/www.scientific.net/amr.912-914.1525.

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Using core analysis, thin slice identification, logging analysis and seismic interpretation, systemic study upon sedimentary types, sedimentary facies, physical and oil bearing properties of each sedimentary microfacies, etc presenting in underwater alluvial fan of Kerqin oilfield of Kailu basin in China, is performed. To identify sedimentary characteristics of underwater alluvial fan and determine its oil bearing property so as to develop this type of reservoir reasonably and effectively. Underwater alluvial fan comprises of 5 kinds sedimentary facies: clastic flow, high density flow, low den

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7

Porter, Donna A., and Margaret J. Guccione. "Deglacial Flood Origin of the Charleston Alluvial Fan, Lower Mississippi Alluvial Valley." Quaternary Research 41, no. 3 (1994): 278–84. http://dx.doi.org/10.1006/qres.1994.1031.

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AbstractLarge-magnitude flooding of the Mississippi River from proglacial lakes Agassiz and Superior most likely occurred between 11,300 and 10,900 and 9900 and 9500 yr B.P. The Charleston alluvial fan, a depositional remnant of one of these floods, is located at the head of a wide alluvial plain near Charleston, Missouri. The fan is an elongate, convex-up sand body (16 × 24 km) composed of medium- and fine-grained sand at least 8 m thick. This sand contrasts with the older coarse-grained sand of the braided stream surface to the west and south and younger silty clay of the meandering stream l

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Sasmal, Dr Ramapada. "Coefficient Analysis of the Alluvial Fan Surface Geometry: A Methodological Approach to Applied Geomorphology." Journal of Research in Environmental and Earth Sciences 10, no. 8 (2024): 90–93. http://dx.doi.org/10.35629/2532-10089093.

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The alluvial fan is a depositional geomorphic surface at the foothills. Most of the alluvial fans in tropical regions are highly dynamic under wet climatic conditions and neotectonic environments. The fans of this region are covered with fertile top soils and deep forests. The soils attack people for agriculture in this region. Presently the continuously growing population pressure causes huge deforestation in these alluvial fan areas for cultivation which causes an accelerating rate of natural hazards like flash floods, landslides, and soil erosion that accelerate the dynamic nature of the fa

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Fenton, Cassandra R., and Jon D. Pelletier. "Cosmogenic 3He age estimates of Plio-Pleistocene alluvial-fan surfaces in the Lower Colorado River Corridor, Arizona, USA." Quaternary Research 79, no. 1 (2013): 86–99. http://dx.doi.org/10.1016/j.yqres.2012.10.006.

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AbstractPlio-Pleistocene deposits of the Lower Colorado River (LCR) and tributary alluvial fans emanating from the Black Mountains near Golden Shores, Arizona record six cycles of Late Cenozoic aggradation and incision of the LCR and its adjacent alluvial fans. Cosmogenic 3He (3Hec) ages of basalt boulders on fan terraces yield age ranges of: 3.3–2.2 Ma, 2.2–1.1 Ma, 1.1 Ma to 110 ka, < 350 ka, < 150 ka, and < 63 ka. T1 and Q1 fans are especially significant, because they overlie Bullhead Alluvium, i.e. the first alluvial deposit of the LCR since its inception ca. 4.2 Ma. 3Hec data sug

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Giano, Salvatore. "Quaternary alluvial fan systems of the Agri intermontane basin (southern Italy): tectonic and climatic controls." Geologica Carpathica 62, no. 1 (2011): 65–76. http://dx.doi.org/10.2478/v10096-011-0006-y.

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Quaternary alluvial fan systems of the Agri intermontane basin (southern Italy): tectonic and climatic controls The Agri River high valley is a Quaternary intermontane basin located in southern Italy. The tectonic evolution of this basin was controlled by Lower Pleistocene strike-slip master faults, subsequently reactivated as normal faults until the Middle Pleistocene. The Quaternary sediments of the basin infill are mainly constituted of continental clastics, represented by coarse-grained alluvial deposits divided by unconformities. The arrangement of clastic deposits suggests that the Pleis

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Nichols, G. J. "Syntectonic alluvial fan sedimentation, southern Pyrenees." Geological Magazine 124, no. 2 (1987): 121–33. http://dx.doi.org/10.1017/s0016756800015934.

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AbstractThe Aguero fanglomerate body developed in late Oligocene to early Miocene time at the northern margin of the Ebro Basin where the emergent southern Pyrenean thrust front created a topographic high. Tectonic activity in the thrust belt strongly influenced the sequences and structures within the fan deposits. The fan deposits display an initial coarsening-up sequence. Intraformational unconformities subdivide the proximal sediments into a series of wedges. These result from a continued uplift along the thrust front during the initial stages of fan development. A major intraformational un

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P., Christy Nirmala Mary. "Effect Of Toposequence On Morphological Characteristics Of Soils From Alagar Hills Toe Slope To Vaigai River Basin, Madurai District, Tamilnadu , India." INTERNATIONAL JOURNAL OF AGRICULTURE AND BIOLOGICAL SCIENCES 4, Sep & Oct 2020 (2020): 134–46. https://doi.org/10.5281/zenodo.4286975.

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<em>In Madurai North taluk, Madurai district, TamilNadu , India  from Alagar hill’s toe slope near Ayathampatty to Vaigai river’s alluvial fan near Vandiyur, ten different soil profile sites were fixed approximately at 2 km intervals and 2 pedons in each site were dug up to 50 m apart, examined  and morphological properties were described. The data revealed that the development of pedon in different lands is as follows. The sites 1, 2 and 3 fall under foot hill 4, 5 and 6 are distributed in basin position, while the sites 7 and 8 occupy basin rim position and the sites 9

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Hossain Abdullah, lanja, and Varoujan k Sissakian. "The Darbendi Bazian Abandoned Alluvial Fan. An Indication for the Lateral Growth of Qara Dagh Anticline, SW Sulaimani, Kurdistan Region, NE Iraq." ISSUE SIX 4, no. 6 (2020): 57–68. http://dx.doi.org/10.25079/ukhjse.v4n1y2020.pp57-68.

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Qara Dagh anticline is one of the main anticlines in the Iraqi Kurdistan Region with NW – SE trend. It is a double plunging anticline almost symmetrical and consists of six minor anticlines some of them exhibit en-echelon plunges. The anticline shows many indications of lateral growth which indicate Neotectonic activities. Among those indications is the Darbendi Bazian abandoned alluvial fan. In this study, the details of the fan are presented and discussed as interpreted from satellite images. The interpreted data is checked in the field and it is found that the alluvial fan is a large fan sh

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Hossain Abdullah, lanja, and Varoujan k Sissakian. "The Darbendi Bazian Abandoned Alluvial Fan. An Indication for the Lateral Growth of Qara Dagh Anticline, SW Sulaimani, Kurdistan Region, NE Iraq." ISSUE SIX 4, no. 6 (2020): 57–68. http://dx.doi.org/10.25079/ukhjse.v4n2y2020.pp57-68.

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Qara Dagh anticline is one of the main anticlines in the Iraqi Kurdistan Region with NW – SE trend. It is a double plunging anticline almost symmetrical and consists of six minor anticlines some of them exhibit en-echelon plunges. The anticline shows many indications of lateral growth which indicate Neotectonic activities. Among those indications is the Darbendi Bazian abandoned alluvial fan. In this study, the details of the fan are presented and discussed as interpreted from satellite images. The interpreted data is checked in the field and it is found that the alluvial fan is a large fan sh

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15

Seitz, Carina, María I. Vélez, and Gerardo M. E. Perillo. "Cenozoic geologic evolution of the lower Colorado River Basin, Northern Patagonia, Argentina." Andean Geology 46, no. 1 (2018): 131. http://dx.doi.org/10.5027/andgeov46n1-3060.

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Climatic changes and eustatic sea levels have been assumed to be the most important controllers of the Colorado River alluvial fan in northern Patagonia. Although the alluvial fan occurs in a region considered tectonically stable, there are pieces of evidence that the Miocene Andean orogeny has reactivated inherited structures, with subsequent geomorphological changes that date back to the Pleistocene. Besides, the clear evidence of neotectonism in the region and their effects on the evolution of this fan, it has not been studied in detail yet. In this study, we map and analyze six sections ou

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Schmidt, Silke, Sumiko Tsukamoto, Eric Salomon, Manfred Frechen, and Ralf Hetzel. "Optical dating of alluvial deposits at the orogenic front of the andean precordillera (Mendoza, Argentina)." Geochronometria 39, no. 1 (2012): 62–75. http://dx.doi.org/10.2478/s13386-011-0050-5.

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AbstractWell constrained numerical ages of alluvial fan sediments are key to understanding the chronology of alluvial episodes and tectonic activity at the front of the Andean Precordillera. We tested the application of radiocarbon and optically stimulated luminescence (OSL) dating in the distal part of an alluvial fan five kilometers north of Mendoza. For OSL dating a large number of aliquots (n > 70) — each composed of ∼50 quartz grains — were measured in order to obtain reliable burial ages despite scattered dose distributions. Owing to a feldspar contamination in all samples, an infrare

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Bacon, Steven N., Eric V. McDonald, Todd G. Caldwell, and Graham K. Dalldorf. "Timing and distribution of alluvial fan sedimentation in response to strengthening of late Holocene ENSO variability in the Sonoran Desert, Southwestern Arizona, USA." Quaternary Research 73, no. 3 (2010): 425–38. http://dx.doi.org/10.1016/j.yqres.2010.01.004.

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The integration of geomorphic mapping, soil stratigraphy, and radiocarbon dating of alluvial deposits offers insight to the timing, magnitude, and paleoclimatic context of Holocene fan sedimentation near Yuma, Arizona. Mapping of 3400 km2 indicates about 10% of the area aggraded in the late Holocene and formed regionally extensive alluvial fan and alluvial plain cut-and-fill terraces. Fan deposits have weakly developed gravelly soils and yielded a date of 3200–2950 cal yr BP from carbonized wood. Alluvial plain deposits have weakly developed buried sandy soils and provided a date of 2460–2300

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18

Bao, Xing, Shao Hua Li, Jun Li, Cheng Zhang, and Wei Wang. "Application of Truncated Gaussian Simulation Algorithm in Alluvial Fan Reservoir Architecture Modeling." Applied Mechanics and Materials 318 (May 2013): 496–500. http://dx.doi.org/10.4028/www.scientific.net/amm.318.496.

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This article counted the distribution regularity and the spread pattern of each tertiary architecture through detailed study of alluvial fan reservoir architecture of the sealing core drilling well in the Karamay group which under the sixth middle area of Karamay oilfield. The tertiary architecture of middle-fan subfacies are: braided channel, sheetfloot microfacies and gritfloot microfacies. Truncated Gaussian simulation algorithm can be used to simulate the middle-fan subfacies of alluvial fan for they have an obvious zone law. Described the distribution regularity and spread pattern of midd

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Thapa, Dipesh, and Kabi Raj Paudyal. "Facies and Depositional Model of an Alluvial Fan: An Example from Pokhara Valley, Nepal." Journal Of The Geological Society Of India 101, no. 4 (2025): 534–50. https://doi.org/10.17491/jgsi/2025/174124.

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ABSTRACT An alluvial fan is a fan-shaped feature formed by sporadic flood events caused by heavy rainfall or rapid snow/ice melting upstream. Floodwaters carry sediments like gravel, sand, and silt from higher elevations and deposit them as water velocity decreases, shaping the alluvial fan. The Pokhara Fan provides valuable insights into the study of alluvial fans. We identified fifteen lithofacies and nine facies’ associations and categorised them into three depositional stages: lobe building, channel building, and abandonment. In the lobe-building phase, sedimentary layers transition from d

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Stock, J. D., K. M. Schmidt, and D. M. Miller. "Controls on alluvial fan long-profiles." Geological Society of America Bulletin 120, no. 5-6 (2008): 619–40. http://dx.doi.org/10.1130/b26208.1.

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Scheinert, Cal, Thad Wasklewicz, and Dennis Staley. "Alluvial Fan Dynamics - Revisiting the Field." Geography Compass 6, no. 12 (2012): 752–75. http://dx.doi.org/10.1111/gec3.12004.

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Sissakian, Varoujan K., Ahmad T. Shihab, Nadhir Al-Ansari, and Sven Knutsson. "Al-Batin Alluvial Fan, Southern Iraq." Engineering 06, no. 11 (2014): 699–711. http://dx.doi.org/10.4236/eng.2014.611069.

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fleeh feaad, Ahmed. "Geomorphological alluvial fan Rania northern Iraq." Al-Anbar University Journal For Humanities 2010, no. 3 (2010): 125–72. http://dx.doi.org/10.37653/juah.2010.14449.

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Singh, Atul K., Manoj K. Jaiswal, Jitendra K. Pattanaik, and Maha Dev. "Luminescence chronology of alluvial fan in North Bengal, India: Implications to tectonics and climate." Geochronometria 43, no. 1 (2016): 102–12. http://dx.doi.org/10.1515/geochr-2015-0037.

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AbstractAlluvial fans are important geomorphic archives because of its strategic location at mountain front which can provide clues to the past climate and tectonics. In general, they provide information about optimum climate condition suitable for fan formation. We provide a detailed luminescence chronology of alluvial fan in north West Bengal, India. The regional fan surface (T44) has been dissected by E-W trending Himalayan thrusts known as Matiali and Chalsa thrusts and have various terraces named as T3, T2and youngest one as T1. Luminescence ages suggest that the formation of the alluvial

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Ramapada Sasmal. "Analysis of alluvial fan surface coefficients to understand the Himalayan foothill instability in the Koshi-Mahananda interfluve area, East Nepal." International Journal of Science and Research Archive 14, no. 3 (2025): 522–30. https://doi.org/10.30574/ijsra.2025.14.3.0682.

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The foothills of the eastern Nepal Himalayas form a colony of alluvial fans. The fan surfaces are extensively used for tea plantations and their associated land use, like dense settlements and intensive crop cultivation. Dynamic surfaces of the fans are unfavorable for a stable land use pattern and hamper human life. It is necessary to identify the dynamic natures and their cause over the fan surfaces to avoid unfavorable circumstances and for preventive measures. Fan surface coefficients show that most of the alluvial fans of the study area are highly unstable. The perennial stream supplies h

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Mollaei, Zeinab, Kamran Davary, Seyed Majid Hasheminia, Alireza Faridhosseini, and Yavar Pourmohamad. "Enhancing flood hazard estimation methods on alluvial fans using an integrated hydraulic, geological and geomorphological approach." Natural Hazards and Earth System Sciences 18, no. 4 (2018): 1159–71. http://dx.doi.org/10.5194/nhess-18-1159-2018.

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Abstract. Due to the uncertainty concerning the location of flow paths on active alluvial fans, alluvial fan floods could be more dangerous than riverine floods. The United States Federal Emergency Management Agency (FEMA) used a simple stochastic model named FAN for this purpose, which has been practiced for many years. In the last decade, this model has been criticized as a consequence of development of more complex computer models. This study was conducted on three alluvial fans located in northeast and southeast Iran using a combination of the FAN model, the hydraulic portion of the FLO-2D

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Zhao, Min, Yuan Wang, Wenbin Yang, et al. "Environmental Heterogeneity and Altitudinal Gradients Drive Darkling Beetle Diversity in an Alluvial Fan." Insects 16, no. 4 (2025): 388. https://doi.org/10.3390/insects16040388.

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Exploring the diversity and community structure of darkling beetles (Tenebrionidae) and the associated environmental factors on an alluvial fan provides useful insights into the ecology of these landscape features. This study investigated Chaqikou in the Helan Mountains, which features unique alluvial fan landforms. Sample plots (200 × 200 m) were established at three positions: the fan top, fan middle, and fan edge. From May to October 2023, pitfall traps were used to survey beetle community composition and its relationship with environmental factors. Significant variations were observed in s

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Sümeghy, Borbála, and Tímea Kiss. "Morphological and hydrological characteristics of paleo-channels on the alluvial fan of the Maros River, Hungary." Journal of Environmental Geography 5, no. 1-4 (2012): 11–19. http://dx.doi.org/10.14232/jengeo-2012-43803.

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The aim of our research was to identify and map the paleo-channel systems on the alluvial fan of the Maros River and to analyse their spatial characteristics. The study on flow directions, horizontal channel parameters and paleo-discharge of the channels can help to forecast the maximum flood discharge and channel changes influenced by climate variations. The paleo-channel generations on the Maros alluvial fan form 13 zones with well defined boundaries. These zones can be either dominated by meandering (5), braided (2), or the mixture of meandering and braided patterns (3). The remaining three

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Mleczak, Mateusz, and Małgorzata Pisarska-Jamroży. "Miocene quartz sands redeposited on subaqueous and alluvial fans during the Saalian: Interpretation of the depositional scenario at Ujście, western Poland." Geologos 25, no. 2 (2019): 125–37. http://dx.doi.org/10.2478/logos-2019-0012.

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Abstract The 14-m-thick sandy succession at Ujście in western Poland formed during the Odranian stadial of the Saalian glaciation, is exceptional in being very well sorted, almost mono-fractional (fine-grained sands) and mono-mineral (mainly quartz grains) and in lacking Scandinavian erratics. The lower sequence (5 metres in thickness) consists of three stacked packages of clinoforms (inclined cross-stratified sands) and is interpreted as having been deposited on a subaqueous fan in a shallow lake during two phases of rising water levels. The upper sand (9 metres in thickness) with (sub) horiz

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Lewis-Merrill, Rebecca A., Seulgi Moon, Jonathan L. Mitchell, and Juan M. Lora. "Assessing Environmental Factors of Alluvial Fan Formation on Titan." Planetary Science Journal 3, no. 9 (2022): 223. http://dx.doi.org/10.3847/psj/ac8d09.

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Abstract Present-day environmental conditions on Titan, the largest moon of Saturn, may do active geomorphic work on its surface. On Earth, the hydrologic water cycle erodes and weathers its continents. Deluges over elevated terrain create debris flows and sheetfloods that spread into alluvial fans as the topographic slope decreases. Mars also shows evidence of past fluvial erosion, but fluvial activity cannot be ongoing in the present. On Titan, however, fluvial erosion is likely ongoing. In this study, we focus on understanding the environmental controls on the spatial distributions of alluv

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Mamakowa, Kazimiera, and Piotr Gębica. "Pollen analysis of a peaty mud sample from the Dunajec River alluvial fan (Sandomierz Basin, Poland) in the context of its morphological position, radiocarbon dating, and comparison with neighbouring sites." Acta Palaeobotanica 55, no. 1 (2015): 94–97. http://dx.doi.org/10.1515/acpa-2015-0004.

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Abstract The paper presents the results of pollen analysis and radiocarbon dating of a peaty mud sample from a gravel-sand outlier of the Vistulian alluvial fan of the Dunajec River. The study showed the occurrence of open birch-pine forests with sporadic larch and stone pine at the time of mud deposition. The vegetation, of park tundra type, was characterised by the development of shrubby and sedge-grass communities. The radiocarbon dating of 39 100 ± 3000 BP indicates that deposition occurred in the Middle Plenivistulian (Hengelo interstadial or older, colder climatic stadial). A comparison

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Bronto, Sutikno. "Genesis endapan aluvium Dataran Purworejo Jawa Tengah; Implikasinya terhadap sumber daya geologi." Indonesian Journal on Geoscience 2, no. 4 (2007): 207–15. http://dx.doi.org/10.17014/ijog.2.4.207-215.

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http://dx.doi.org/10.17014/ijog.vol2no4.20072Purworejo is part of the Southern Central Jawa alluvial plain that is bordered by the South Sera- yu Mountains and Sumbing Volcano in the north, West Progo Mountains in the east, Indian Ocean in the south, and Kebumen-Banyumas plain in the west. This Purworejo plain comprises reworked allu- vial deposits, particularly from Tertiary volcanic rocks of the South Serayu and West Progo Mount- ains, and the Sumbing Quaternary Volcano. In the northern part older reworked material has formed Purworejo alluvial fan in the east and Kutoarjo alluvial fan in th

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Marchi, L., M. Cavalli, and V. D'Agostino. "Hydrogeomorphic processes and torrent control works on a large alluvial fan in the eastern Italian Alps." Natural Hazards and Earth System Sciences 10, no. 3 (2010): 547–58. http://dx.doi.org/10.5194/nhess-10-547-2010.

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Abstract. Alluvial fans are often present at the outlet of small drainage basins in alpine valleys; their formation is due to sediment transport associated with flash floods and debris flows. Alluvial fans are preferred sites for human settlements and are frequently crossed by transport routes. In order to reduce the risk for economic activities located on or near the fan and prevent loss of lives due to floods and debris flows, torrent control works have been extensively carried out on many alpine alluvial fans. Hazard management on alluvial fans in alpine regions is dependent upon reliable p

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El Hassan, Osman M. "Resistivity survey investigating salinity hazard and aquifer system in the alluvial fans in central Jordan Valley." Journal of The Faculty of Science and Technology, no. 5 (October 5, 2018): 54–66. http://dx.doi.org/10.52981/jfst.vi5.366.

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In the course of this study geological and geophysical resistivity survey were conducted in the area extended from Deir Alla to Suleikhat (Middle Ghor Area) in Jordan valley. In order to evaluate the potential and characteristic of the groundwater quality and distribution of the aquifer in the alluvial in the area. The aquifer system in the area consists of Ajlun and Belga Group, in addition to the Plateau Gravel Group and the Alluvial Aquifers.The resistivity survey encounter an average thickness of the alluvial fans of about93 meters. The source of salinity in the alluvium aquifers was predi

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ISHIKAWA, Tadaharu, and Hiroyuki YAMAMOTO. "Sediment movement on the Kurobe alluvial fan." Doboku Gakkai Ronbunshu, no. 381 (1987): 35–43. http://dx.doi.org/10.2208/jscej.1987.381_35.

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Bøe, Reidulv, and Brian A. Sturt. "Textural responses to evolving mass-flows: an example from the Devonian Asen Formation, central Norway." Geological Magazine 128, no. 2 (1991): 99–109. http://dx.doi.org/10.1017/s0016756800018306.

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AbstractThe Asenvågoya Conglomerate is a thin (c. 6 m) conglomeratic body composed of mass-flow deposits and enveloped by braided-stream sandstones and conglomerates. The section studied represents the proximal part of a small-radius alluvial fan built out from the basin margin towards a flood basin. The fan was possibly generated by escarpment creation, or rejuvenation, in response to syndepositional faulting along the basin margin, and comprises sand-matrix-supported and clast-supported, sheet-like conglomerates. There is an upward change through the sequence from stream flow and surging mas

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Polom, Ulrich, Hussam Alrshdan, Djamil Al-Halbouni, et al. "Shear wave reflection seismic yields subsurface dissolution and subrosion patterns: application to the Ghor Al-Haditha sinkhole site, Dead Sea, Jordan." Solid Earth 9, no. 5 (2018): 1079–98. http://dx.doi.org/10.5194/se-9-1079-2018.

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Abstract. Near-surface geophysical imaging of alluvial fan settings is a challenging task but crucial for understating geological processes in such settings. The alluvial fan of Ghor Al-Haditha at the southeast shore of the Dead Sea is strongly affected by localized subsidence and destructive sinkhole collapses, with a significantly increasing sinkhole formation rate since ca. 1983. A similar increase is observed also on the western shore of the Dead Sea, in correlation with an ongoing decline in the Dead Sea level. Since different structural models of the upper 50 m of the alluvial fan and va

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England, John. "Glacial Erosion of a High Arctic Valley." Journal of Glaciology 32, no. 110 (1986): 60–64. http://dx.doi.org/10.1017/s0022143000006882.

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AbstractA large valley, ideally suited for “selective linear erosion” by ice, extends from the Kreiger Mountains to Tanquary Fiord, north–central Ellesmere Island. During the last glaciation, the outlet glacier at the head of the valley advanced 18 km and was at least 250 m thick where it contacted the sea in the lower valley. Erosion of bedrock inside the last ice limit is recorded by an abraded diabase dike, and by crag–and–tail features developed in limestone. During deglaciation (7800 B.P.), melt–water streams along the ice margin incised a large alluvial fan that pre–dates the last glacia

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England, John. "Glacial Erosion of a High Arctic Valley." Journal of Glaciology 32, no. 110 (1986): 60–64. http://dx.doi.org/10.3189/s0022143000006882.

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AbstractA large valley, ideally suited for “selective linear erosion” by ice, extends from the Kreiger Mountains to Tanquary Fiord, north–central Ellesmere Island. During the last glaciation, the outlet glacier at the head of the valley advanced 18 km and was at least 250 m thick where it contacted the sea in the lower valley. Erosion of bedrock inside the last ice limit is recorded by an abraded diabase dike, and by crag–and–tail features developed in limestone. During deglaciation (7800 B.P.), melt–water streams along the ice margin incised a large alluvial fan that pre–dates the last glacia

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Bhardwaj, B. D., and Adal Singh. "Sedimentology of a Recent Alluvial Fan of Ganga River, Rishikesh, India." Journal Geological Society of India 39, no. 6 (1992): 457–65. http://dx.doi.org/10.17491/jgsi/1992/390602.

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Abstract The annual flow of the river Ganga is 468.7 billion cubic meters. The river emerges on the plain at Rishikesh from the mountains. The Alluvial fan deposits are divided into three facies: proximal, medial and distal fan facies. The nature of sediments varies from coarse gravel and boulders to fine gravel to coarse sand. The proximal facies show massive units (Gms) and coarsening upward of sediments. The gravel and boulders of proximal facies are randomly oriented and are poorly sorted, which are described as debris deposits. The sediments of mid fan facies show massive units (Gms), hor

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Gao, Linman, Xianyan Wang, Shuangwen Yi, Jef Vandenberghe, Martin Gibling, and Huayu Lu. "Episodic Sedimentary Evolution of an Alluvial Fan (Huangshui Catchment, NE Tibetan Plateau)." Quaternary 1, no. 2 (2018): 16. http://dx.doi.org/10.3390/quat1020016.

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Alluvial-fan successions record changes in hydrological processes and environments that may reflect tectonic activity, climate conditions and changes, intrinsic geomorphic changes, or combinations of these factors. Here, we focus on the evolution of a stream-dominated fan in a tectonic depression of the Xining basin of China, laid down under a semi-arid climate in the northeastern Tibetan Plateau (NETP). The fan succession is composed of three facies associations, from bottom to top: (1) matrix to clast-supported, poorly sorted, planar cross-stratified to crudely stratified sheets of coarse-gr

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Lu, Chiao-Yin, Jyr-Ching Hu, Yu-Chang Chan, Yuan-Fong Su, and Chih-Hsin Chang. "The Relationship between Surface Displacement and Groundwater Level Change and Its Hydrogeological Implications in an Alluvial Fan: Case Study of the Choshui River, Taiwan." Remote Sensing 12, no. 20 (2020): 3315. http://dx.doi.org/10.3390/rs12203315.

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Balancing the demand of groundwater resources and the mitigation of land subsidence is particularly important, yet challenging, in populated alluvial fan areas. In this study, we combine multiple monitoring data derived from Multi-Temporal InSAR (MTI), GNSS (Global Navigation Satellite System), precise leveling, groundwater level, and compaction monitoring wells, in order to analyze the relationship between surface displacement and groundwater level change within the alluvial fan of the Choshui River in Taiwan. Our combined time-series analyses suggest, in a yearly time scale, that groundwater

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Chen, Tongde, Juying Jiao, Lingling Wang, Wei Wei, Chunjing Zhao, and Shuwei Wei. "Evaluation and Promotion of Alluvial Fan Land Suitability for Agriculture in the Lhasa River Basin, Qinghai–Tibet Plateau." Agriculture 14, no. 8 (2024): 1214. http://dx.doi.org/10.3390/agriculture14081214.

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Alluvial fans have been proven to have great utilisation potential in QTP, but to what extent they are suitable for agricultural development is unknown. Therefore, using the alluvial fan in the Lhasa River Basin (LRB) as a case study, this paper established an evaluation system of land suitability for agriculture (LSA). Principal component analysis (PCA) and the exhaustive method (EM) were used to define the minimum dataset (MDS) and then the LSA of the alluvial fan in the LRB was evaluated using a comprehensive index of LSA. Two scientific approaches were implemented to improve the LSA using

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Kociuba, Waldemar. "The Role of Bedload Transport in the Development of a Proglacial River Alluvial Fan (Case Study: Scott River, Southwest Svalbard)." Hydrology 8, no. 4 (2021): 173. http://dx.doi.org/10.3390/hydrology8040173.

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This study, which was conducted between 2010 and 2013, presents the results of direct, continuous measurements of the bedload transport rate at the mouth section of the Scott River catchment (NW part of Wedel-Jarlsberg Land, Svalbard). In four consecutive melt seasons, the bedload flux was analyzed at two cross-sections located in the lower reaches of the gravel-bed proglacial river. The transported bedload was measured using two sets of River Bedload Traps (RBTs). Over the course of 130 simultaneous measurement days, a total of 930 bedload samples were collected. During this period, the river

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Harvey, Adrian M., Anne E. Mather, and Martin Stokes. "Alluvial fans: geomorphology, sedimentology, dynamics — introduction. A review of alluvial-fan research." Geological Society, London, Special Publications 251, no. 1 (2005): 1–7. http://dx.doi.org/10.1144/gsl.sp.2005.251.01.01.

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Langridge, R. M., R. Basili, L. Basher, and A. P. Wells. "Late Holocene landscape change history related to the Alpine Fault determined from drowned forests in Lake Poerua, Westland, New Zealand." Natural Hazards and Earth System Sciences 12, no. 6 (2012): 2051–64. http://dx.doi.org/10.5194/nhess-12-2051-2012.

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Abstract. Lake Poerua is a small, shallow lake that abuts the scarp of the Alpine Fault on the West Coast of New Zealand's South Island. Radiocarbon dates from drowned podocarp trees on the lake floor, a sediment core from a rangefront alluvial fan, and living tree ring ages have been used to deduce the late Holocene history of the lake. Remnant drowned stumps of kahikatea (Dacrycarpus dacrydioides) at 1.7–1.9 m water depth yield a preferred time-of-death age at 1766–1807 AD, while a dryland podocarp and kahikatea stumps at 2.4–2.6 m yield preferred time-of-death ages of ca. 1459–1626 AD. Thes

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Kociuba, Waldemar. "Geomorphic Changes of the Scott River Alluvial Fan in Relation to a Four-Day Flood Event." Water 15, no. 7 (2023): 1368. http://dx.doi.org/10.3390/w15071368.

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A four-day glacier-melt flood (13–16 August 2013) caused abrupt geomorphic changes in the proglacial gravel-bed Scott River, which drains the small (10 km2) Scott Glacier catchment (SW Svalbard). This type of flood occurs on Svalbard increasingly during periods of abnormally warm or rainy weather in summer or early autumn, and the probability of occurrence grows in direct proportion to the increase in temperature and/or precipitation intensity. In the summer of 2013, during the measurement season, the highest daily precipitation (17 mm) occurred on 13 August. During the following four days, it

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Garcés, Alex, Gerardo Zegers, Albert Cabré, Germán Aguilar, Aldo Tamburrino, and Santiago Montserrat. "A modeling methodology to study the tributary-junction alluvial fan connectivity during a debris flow event." Natural Hazards and Earth System Sciences 22, no. 2 (2022): 377–93. http://dx.doi.org/10.5194/nhess-22-377-2022.

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Abstract. Traditionally, interactions between tributary alluvial fans and the main river have been studied in the field and in the laboratory, giving rise to different conceptual models that explain their role in the sediment cascade. On the other hand, numerical modeling of these complex interactions is still limited because the broad debris flow transport regimes are associated with different sediment transport models. Even though sophisticated models capable of simulating many transport mechanisms simultaneously exist, they are restricted to research purposes due to their high computational

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Blasi, Alessio, Bruno Mazzorana, Michael Sturm, and Bernhard Norbert Gems. "Spatial patterns of exposure to sediment-laden flows on an experimental alluvial fan." Cuaternario y Geomorfología 37, no. 1-2 (2023): 77–112. http://dx.doi.org/10.17735/cyg.v37i1-2.95210.

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Sediment-laden flows with significant amounts of large wood can impact alluvial fans and seriously damage infrastructure and property which makes a profound knowledge of exposure an essential requisite for risk mitigation. To investigate its spatial variability, we executed experiments on a simplified physical model and assessed the observed spatial process and exposure patterns by quantifying synthetic indexes and geostatistically analysing spatial probabilities. We systematically varied the loading conditions, i.e. total flow volume, solid fraction and the tank opening controlling water rele

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Hossain, Md Shakhawat, ASM Maksud Kamal, Md Zillur Rahman, Md Mostafizur Rahman, Kamrun Nahar, and ASM Woobaidullah. "Predominant period and amplification factor estimation with respect to geomorphology - a case study of Sylhet city corporation area, Bangladesh." Bangladesh Journal of Scientific Research 27, no. 1 (2016): 1–10. http://dx.doi.org/10.3329/bjsr.v27i1.26220.

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Predominant period and amplification factor of the subsurface soils of Sylhet city corporation area have been estimated using microtremor. Their relation to the geomorphological units of the city has been determined. The estimated predominant periods of alluvial fan, back swamp, flood plain, isolated hills, level hills, piedmont plain, point bar and ridge of the city are 0.60, 0.75, 0.73, 0.23, 0.62, 0.45, 0.73 and 0.66 sec., respectively. With maximum (± 0.88) and minimum (± 0.38) standard deviation amplification factor of alluvial fan, back swamp, flood plain, isolated hills, level hills, pi

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