scholarly journals Dispersive Pressure, Boundary Jerk and Configurational Changes in Debris Flows

2016 ◽  
Vol 9 (1) ◽  
pp. 1-6 ◽  
Author(s):  
Perry BARTELT ◽  
Brian McARDELL ◽  
Christoph GRAF ◽  
Marc CHRISTEN ◽  
Othmar BUSER
Keyword(s):  
Debris Flows ◽  
Dispersive Pressure

A terminal debris-flow lobe in the northern Pennines, United Kingdom

1987 ◽  
Vol 78 (3) ◽  
pp. 169-176 ◽  
Author(s):  
P. A. Carling
Keyword(s):  
Debris Flow ◽  
Debris Flows ◽  
Flash Flood ◽  
Dynamic Mode ◽  
Small Stream ◽  
Low Viscosity ◽  
Matrix Strength ◽  
Core Deposits ◽  
Mode Of Transport ◽  
Dispersive Pressure

ABSTRACTOn 17 July 1983 heavy rainfall resulted in a flash-flood in the headwaters of the West Grain, a small stream tributary to the River Wear in the northern Pennines. Associated with the flood was a series of three boulder-lobes. The morphology of these lobes and the associated sediment facies are described and used to estimate the hydro-dynamic mode of transport and deposition. Estimates of the shear-strength and viscosity are consistent with the initial conclusion (based on the sedimentology) that the deposits represent low-viscosity debris-flows. The boulder snouts moved as inertial grain-flows with an associated pebbly-core exhibiting a degree of matrix strength imparted by intergranular friction. A degree of reworking of the upper surface of the core by fluidal flow during core motion and immediately upon deposition was also identified. The full sedimentary sequence therefore represents debris-flow core deposits subject to low dispersive pressure evolving into fluidal debris-torrent deposits.

Initiation and frequency of debris flows in Grand Canyon, Arizona

1996 ◽  
Author(s):  
Peter G. Griffiths ◽  
Robert H. Webb ◽  
Theodore S. Melis
Keyword(s):  
Debris Flows ◽  
Grand Canyon
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