Derivative maps generated from DEM's and panchromatic remote sensing data (TM Landsat 7 or SPOT) can be used to characterize surficial basin deposits in arid regions dominated by basin and range topography. Results indicate the technique is useful for rapid digital mapping of surficial deposits where a first order, systematic subdivision of bedrock, alluvial fan units, and playas is unavailable...

Open-framework gravels (OFGs) form common lithofacies of alluvial fans. However, inferences their mechanisms transport and deposition, controls on distribution in alluvial-fan successions, remain difficult, limiting our ability to interpret the environmental significance such deposits predict distributions ancient successions. From an applied standpoint, predictions are important development hy...

[1] Longitudinal profiles from six alluvial fans surveyed in southwestern California have quantitative attributes that can distinguish formation processes. The radial slope of fans where debris flow processes dominated is constant while fluvially-fed fans have a concave-upward shape. We find the power law regression of upstream slope-distance profiles is the preferred approach for assessing con...

There is a need to automate terrain feature mapping so that to make the process more objective and less time consuming by using proper feature extraction techniques. The objective of this study was the use of object-oriented image analysis methods for the automatic extraction of physiographic regions and alluvial fan landform units. The study area was located in Nevada, USA. The data used inclu...

Local surface water and stormflow were infiltrated intermittently from a 40-ha basin between September 2003 and September 2007 to determine the feasibility of recharging alluvial aquifers pumped for public supply, near Stockton, California. Infiltration of water produced a pressure response that propagated through unconsolidated alluvial-fan deposits to 125 m below land surface (bls) in 5 d and...

Introduction: We have studied a terraced fan deposit centered at 15.0° S, 299.7° E within one of the troughs of Coprates Catena in order to investigate the role that water may have played in its formation. Only a handful of these unique terraced fan deposits have been identified on Mars [1-4], although their small sizes make them difficult to identify with the current data sets. The few fan dep...

The Muğla Polje (SW Turkey), which formed as a result of the Pleistocene activity Fault, is an example rift basin with two alluvial fans (the Fan, 3.33 km2 and Düğerek 1.26 km2). This study focuses on development these through evaluation aerial photos, Google-Earth images, measurements sedimentary sections, lithological examinations, mineralogical discriminations, in situ observations. Fracture...