Aeolian Processes and Their Effects on Understanding the Chronology of Mars
نویسندگان
چکیده
Aeolian (wind) processes can transport particles over large distances on Mars, leading to the modification or removal of surface features, formation of new landforms, and mantling or burial of surfaces. Erosion of mantling deposits by wind deflation can exhume older surfaces. These processes and their effects on the surface must be taken into account in using impact crater statistics to derive chronologies on Mars. In addition, mapping the locations, relative ages, and orientations of aeolian features can provide insight into Martian weather, climate, and climate history.
منابع مشابه
The geology of Mars: new insights and outstanding questions
The major dynamic forces shaping the surfaces, crusts, and lithospheres of planets are represented by geological processes (Figures 1.1 1.6) which are linked to interaction with the atmosphere (e.g., aeolian, polar), with the hydrosphere (e.g., fluvial, lacustrine), with the cryosphere (e.g., glacial and periglacial), or with the crust, lithosphere, and interior (e.g., tectonism and volcanism)....
متن کاملRecent developments in planetary Aeolian studies and their terrestrial analogs
This report summarizes the many advances that have been made in the study of planetary Aeolian processes that have taken place since the first Planetary Dunes Workshop was held in May of 2008, through 2011. Many of the recent studies are facilitated by the wealth and variety of high resolution imaging and spectra data still being returned by multiple spacecraft in orbit and on the surface of Ma...
متن کاملLarge Aeolian Ripples: Extrapolations from Earth to Mars
Introduction: The shapes produced on terrestrial surfaces that are continually subject to aeolian processes range in size from tiny ripples to giant draa [1]. The physical mechanism of the formation of ripples, the smallest of aeolian bedforms, is intimately related to saltation and reptation processes. Sand and granule ripples are typically tens of reptation path lengths wide and do not alter ...
متن کاملTHE CAMEL PROJECT - CHARACTERIZATION AND CLASSIFICATION OF DUNE FIELDS ON MARS BASED ON EARTH. T. Barata1, P.Pina2,
Introduction: Dunes are common features on planetary surfaces where unconsolidated material is present in abundance and responds to an atmosphere capable of producing significant winds. Wind is the most important erosive agent on present-day Mars, and the availability of large amounts of loose sand and dust provides conditions for the existence of dune fields all over the planet. They are the m...
متن کاملInvestigating the interaction between rivers and sand dunes in arid and semi-arid regions of Iran
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...
متن کامل