نتایج جستجو برای: fluvial sedimentation

تعداد نتایج: 22091  

2006
Mathieu DAËRON

We present a methodology to derive the growth history of a fault-tip fold above a basal detachment. Our approach is based on modeling of the stratigraphic and geomorphic records of deformation, as well as the finite structure of the fold constrained from seismic profiles. We parametrize the spatial deformation pattern using a simple formulation of the displacement field derived from sandbox exp...

2014
D. E. Walling P. Du P. Porto Y. Zhang

The application of fallout radionuclides in soil erosion and sedimentation investigations has provided a valuable tool for improving the understanding of erosion and sediment transfer processes. However, most studies using fallout radionuclides have focussed on small areas. Increasing acceptance of the important role of fine sediment in degrading aquatic habitats and in the transfer and fat...

2017
Peng Lu Hui Wang Ruixia Yang Yan Tian Panpan Chen Rosa Lasaponara Nicola Masini

This paper deals with the study of Holocene geomorphic evolution of rivers around Songshan Mountain in relation to human frequentation in Prehistoric periods. The investigations were performed by means of an integration of GIS data processing; field surveys and particle size analysis. In 8000–3000 aBP; in the Songshan Mountain Region, large-scale river sedimentation occurred. This increased the...

Journal: :Geographica Pannonica 2022

The juxtaposition of natural levees results in alluvial ridges with a unique fluvial record. Our aims were to (1) identify the Upper Tisza (Hungary); (2) determine their morphological characteristics; and (3) reconstruct Late Quaternary history region. oldest paleo-meander was abandoned ca. 29 ka ago; referring early avulsion Tisza. Five identified intensive activity at 12-13 ka, 7.7-8.6 6.1-6....

Journal: :Australian Journal of Earth Sciences 2022

The present study provides valuable new information on the evolution of Sydney estuary by tracing development complete marine–estuarine–fluvial system through a full glacial cycle (Last Interglacial, LIG, to Interglacial). Extensive seismic (361.3-line km) and sedimentological studies provided sound foundation for production detailed litho- seismic-stratigraphic record estuary. In absence relia...

Journal: :Aeolian Research 2022

• Novel classification scheme for types of aeolian-fluvial interaction in ancient erg deposits. Scheme applied to outcrops Permian Cutler Group enable 3D architecture analysis. Classification is generally applicable. assists palaeoenvironmental interpretation. The preservation the sedimentary deposits arid environments determined by both geomorphic and geologic processes. Sedimentary evidence s...

Journal: :Geosciences 2021

Downcutting and infill of incised valley systems is mostly controlled by relative sea-level changes, studies on valley-fill successions accumulated independently from or lake-level oscillations are limited. This study focuses the Plio-Pleistocene evolution a fluvial drainage system developed in Southern Tuscany (Italy) following regional marine forced regression at end Piacentian. Subsequent in...

2009
Jason P. Field David D. Breshears Jeffrey J. Whicker

Soil erosion is driven by not only aeolian but also fluvial transport processes, yet these two types of processes are usually studied independently, thereby precluding effective assessment of overall erosion, potential interactions between the two drivers, and their relative sensitivities to projected changes in climate and land use. Here we provide a perspective that aeolian and fluvial transp...

2009
Geoffrey C. Collins

[1] Observations of likely fluvial channels on the surface of Titan, along with Titan’s geologically youthful surface, motivate this study of comparative fluvial erosion rates on Titan and the Earth. The roles of bedload abrasion, suspended load abrasion, plucking, and cavitation are considered. Despite orders of magnitude differences in some of the physical parameters that control fluvial inci...

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