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10.1073/pnas.1715250115 http://scihub22266oqcxt.onion/10.1073/pnas.1715250115 C5948954!5948954 !29686102     free     free     free Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\29686102 .jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117       Proc+Natl+Acad+Sci+U+S+A 2018 ; 115 (19 ): 4827-4832 Nephropedia Template TP {{tp|p=29686102 |t=2018. Glassy dynamics of landscape evolution |pdf=|usr=}}{{29686102 }} gab.com Text Glassy dynamics of landscape evolution JO: Proc Natl Acad Sci U S A http://www.kidney.de/pget.php?&tw=1&pmid=29686102 #FOAvip Soil creeps imperceptibly downhill, but also fails catastrophically to create landslides. Despite the importance of these processes as hazards and in sculpting landscapes, there is no agreed-upon model that captures the full range of behavior. Here we examine the granular origins of hillslope soil transport by discrete element method simulations and reanalysis of measurements in natural landscapes. We find creep for slopes below a critical gradient, where average particle velocity (sediment flux) increases exponentially with friction coefficient (gradient). At critical gradient there is a continuous transition to a dense-granular flow rheology. Slow earthflows and landslides thus exhibit glassy dynamics characteristic of a wide range of disordered materials; they are described by a two-phase flux equation that emerges from grain-scale friction alone. This glassy model reproduces topographic profiles of natural hillslopes, showing its promise for predicting hillslope evolution over geologic timescales. Twit Text FOAVip Glassy dynamics of landscape evolution ????Proc Natl Acad Sci U S A http://www.kidney.de/pget.php?&tw=1&pmid=29686102 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=29686102 #FOAvip English Wikipedia <ref>{{Cite pmid|29686102 }}</ref> Glassy dynamics of landscape evolution #MMPMID29686102 Ferdowsi B ; Ortiz CP ; Jerolmack DJ Proc Natl Acad Sci U S A 2018[May]; 115 (19 ): 4827-4832 PMID29686102 show ga Soil creeps imperceptibly downhill, but also fails catastrophically to create landslides. Despite the importance of these processes as hazards and in sculpting landscapes, there is no agreed-upon model that captures the full range of behavior. Here we examine the granular origins of hillslope soil transport by discrete element method simulations and reanalysis of measurements in natural landscapes. We find creep for slopes below a critical gradient, where average particle velocity (sediment flux) increases exponentially with friction coefficient (gradient). At critical gradient there is a continuous transition to a dense-granular flow rheology. Slow earthflows and landslides thus exhibit glassy dynamics characteristic of a wide range of disordered materials; they are described by a two-phase flux equation that emerges from grain-scale friction alone. This glassy model reproduces topographic profiles of natural hillslopes, showing its promise for predicting hillslope evolution over geologic timescales. |*Models, Theoretical [MESH]Glassy dynamics of landscape evolution (epmc).pdf DeepDyve Pubget Overpricing