نتایج جستجو برای: aeolian landforms

تعداد نتایج: 3280  

Journal: Desert 2008
N. Mashhadi S. Feiznia

The result of wind dynamic (capacity and potential) is transport of soil or sediment particles and subsequent formative desert landforms based on the severity of erosion or sedimentation. The Khartouran region, because of its geology, geomorphology and climatology conditions is a special place in the arid region on the closed basin of Dasht-e-kavir. It is evident that the ecosystem balance of t...

Journal: :Journal of geophysical research. Planets 2018
Anna Urso Matthew Chojnacki David A Vaz

Isolated landscapes largely shaped by aeolian processes can occur on Earth, while the majority of Mars' recent history has been dominated by wind-driven activity. Resultantly, Martian landscapes often exhibit large-scale aeolian features, including yardang landforms carved from sedimentary-layered deposits. High-resolution orbital monitoring has revealed that persistent bedform activity is occu...

Journal: :Journal Of Geophysical Research: Planets 2022

Aeolian landforms are widespread in our solar system. Understanding the exact nature and processes of formation these features challenging tasks necessitating a strong collaboration between scientists with different skills scientific backgrounds. This paper describes special issue for 5th International Planetary Dunes Workshop, which includes 15 research papers three commentaries. Among 18 incl...

2003
R. P. Irwin Irwin T. R. Watters A. D. Howard T. A. Maxwell A. B. Ivanov S. Byrne M. I. Richardson A. R. Vasavada T. N. Titus J. F. Bell

Introduction: Most studies of martian erosion have focused on crater statistics, aeolian landforms and deposits, and valley network morphology. Previous workers have noted that the martian crater population is deficient in craters less than ~30 km in diameter, presumably due to erosion [1], and that ancient martian craters were subjected to different erosional processes than craters on airless ...

The instability and mobility of sand dunes is a major concern of planning and management in arid coastal plains. The aim of this study is to identify morphogenetic characteristics of sand masses and their locations, as well as to identify the processes that formed and transported them in the western part of the Makran coastal plain. Research data and tools were including spatial distributions o...

Extended abstract 1- Introduction Fluvial and aeolian processes are important factors in changing the surface of morphology in the Earth. When rivers and sand dunes meet, the transportation of sediment  between them can lead to one of the systems or both  of them change. With their connection between river sediment and wind systems there would be lots of reactions, but very little has been st...

2016
I. Smolyar T. Bromage M. Wikelski

Large-scale patterns evident from satellite images of aeolian landforms on Earth and other planets; those of intermediate scale in marine and terrestrial sand ripples and sediment profiles; and small-scale patterns such as lamellae in the bones of vertebrates and annuli in fish scales are each represented by layers of different thicknesses and lengths. Layered patterns are important because the...

2013
Paul A. Carling

[1] Landforms, morphologically similar to aeolian yardangs but formed by erosion of bedrock by currents on an estuarine rock platform, are described for the first time. The geometries of the “yardangs” are described and related to semi-lemniscate shapes that minimize hydraulic drag. The processes of bedrock erosion by the reversing sedimentladen tidal currents are described, and a semi-quantita...

2015
K. E. Scanlon

Introduction. The western and northwestern flanks of the Tharsis Montes volcanoes were covered by tropical mountain glaciers 125–220 million years ago [1], as evidenced by the morphology, stratigraphic relationships, and spatial distribution of landforms in the fanshaped deposits (FSDs) on each volcano [2-8] and by climate and glacial flow models that predict snow accumulation and ice flow in t...

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