Introduction: Martian gullies are defined by [1] to be slope features comprised of an upslope alcove, a midslope channel, and a downslope depositional fan. Due to their relative youth and similarities to waterrelated features on Earth, the Martian gullies have attracted much attention since their discovery by the Mars Orbiter Camera [1]. Many erosional agents for the gullies have been proposed ...

Terrestrial close range digital photogrammetric methods were used to obtain three-dimensional data on erosion gullies associated with waste rock dumps at Newmont Australia’s Jundee gold mining operations. Digital stereo pairs of photographs were taken at each site and three-dimensional images produced using the CSIRO software package SIRO3D. Difficulties associated with producing accurate three...

0019-1035/$ see front matter 2011 Elsevier Inc. A doi:10.1016/j.icarus.2011.02.020 ⇑ Corresponding author. Address: Department of University, Box 1846, Providence, RI 02912, USA. Fax E-mail address: [email protected] (S.C. Sc Advances in dating gullies on Mars using superposition relationships and a stratigraphic marker horizon link gully chronostratigraphy to recent climate cycles. New ob...

Debris flows in the Wudongde dam area, China could pose a huge threat to the running of the power station. Therefore, it is of great significance to carry out a susceptibility analysis for this area. This paper presents an application of the rock engineering system and fuzzy C-means algorithm (RES_FCM) for debris flow susceptibility assessment. The watershed of the Jinsha River close to the Wud...

Alluvial gully erosion is a likely key sediment source into many large rivers in tropical Australia. This type of gullying differs fundamentally to the generally accepted gully model from Southern Australia, in that it is found exclusively within alluvium and can propagate entirely as a result of basal sapping. The process is found to varying degrees within alluvial river types along most Gulf ...

Relatively young landforms on Mars, seen in high-resolution images acquired by the Mars Global Surveyor Mars Orbiter Camera since March 1999, suggest the presence of sources of liquid water at shallow depths beneath the martian surface. Found at middle and high martian latitudes (particularly in the southern hemisphere), gullies within the walls of a very small number of impact craters, south p...

Despite radically different environmental conditions, terrestrial and martian dunes bear a strong resemblance, indicating that the basic processes of saltation and grainfall (sand avalanching down the dune slipface) operate on both worlds. Here, we show that martian dunes are subject to an additional modification process not found on Earth: springtime sublimation of Mars' CO(2) seasonal polar c...

Introduction: Recent gullies on Mars are observed on the wallslopes of the mid-latitude regions. They might sign the presence of fluid flows, likely involving liquid water, in a recent past [1]. However, authors have shown that dry flows might be an alternative to the formation of Martian gullies [e.g.2]. Levees are frequently present together Martian gullies independently of their location (du...

Introduction: One of the major surprises of the Mars Global Surveyor mission was the discovery of gullies, a class of unusually young features consisting of an alcove, a channel and a fan [1-2]. These features were interpreted to have originated through the flow of liquid water originating from groundwater discharge [1,2], although alternate interpretations have been presented [see 3]. Uncertai...