Interactions between boulders and aeolian ridges on Mars
نویسندگان
چکیده
Abstract Here we present new observations of two different interactions between aeolian ridges and boulder fields on Mars that provide insight into past wind conditions. First, an analysis ridge at test sites in Proctor Crater additional site ~430 km to the northeast shows geometry can be affected by changes surface roughness elements generated fields. Second, a detailed examination some found individual boulders generate multi‐armed ‘wakes’ have no clear proxy Earth. The ridge/boulder dynamics suggest transverse acted as during their development, indicating they formed length scale greater than ripples. wakes seem represent unusual interaction flow separation pre‐exiting ridges; why this pattern is not observed Earth remains uncertain.
منابع مشابه
Transverse Aeolian Ridges on Mars: Distribution, Orientations, and Ages
Introduction: Mars is host to a wide range of aeolian forms such as dunes, ripples, dust devils, dust storms, yardangs, and ventifacts. Large dune fields characterized by low albedos and large duneform sizes have been observed and occur mainly around the north polar cap and in the southern mid-latitudes. However, another morphologically and dimensionally distinct population of aeolian bedforms ...
متن کاملThe distribution of Transverse Aeolian Ridges on Mars
Introduction: Mars is host to a wide range of aeolian forms such as dunes, ripples, dust devils, dust storms, yardangs, and ventifacts. Large dune fields characterized by low albedos and large duneform sizes have been observed and occur mainly around the north polar cap and in the southern mid-latitudes. However, another morphologically and dimensionally distinct population of aeolian bedforms ...
متن کاملThe Variability of Transverse Aeolian Ridges in Troughs on Mars
Introduction: A precursory glance at MGS images of the surface of Mars show an abundance of aeolian transverse ridges [1]. These ridges are located in a variety of geological terrains. Zimbelman and Wi lson [2] have separated the small-scale aeolian features of Syrtis Major into six categories: ripples associated with obstacles, ripple bands, ripple fields, ripple patches, isolated ripple patch...
متن کاملLatitude-dependent nature and physical characteristics of transverse aeolian ridges on Mars
[1] Narrow-angle images from the Mars Orbiter Camera (MOC) have revealed the common occurrence of small-scale (<100 m wavelength) bright transverse aeolian ridges (TARs) on the surface of Mars. MOC images were used to assess the broad distribution of TARs from 90 N to 90 S between 180 E and 240 E to investigate their relationship to latitude, elevation, thermal inertia, geologic units, local sl...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Earth Surface Processes and Landforms
سال: 2021
ISSN: ['1096-9837', '0197-9337']
DOI: https://doi.org/10.1002/esp.5216