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REPORT:
Debris-flow deposition: Effects of pore-fluid pressure and friction concentrated at flow margins


-- Jon J. Major, and Richard M. Iverson, 1999,
Debris-flow deposition: Effects of pore-fluid pressure and friction concentrated at flow margins IN: GSA Bulletin, October 1999, v.111, no.10, p.1424-1434

Measurements of pore-fluid pressure and total bed-normal stress at the base of several approximately 10 cubic meters experimental debris flows provide new insight into the process of debris-flow deposition. Pore-fluid pressures nearly sufficient to cause liquefaction were developed and maintained during flow mobilization and acceleration, persisted in debris-flow interiors during flow deceleration and deposition, and dissipated significantly only during postdepositional sediment consolidation. -- Major and Iverson, 1999




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05/23/02, Lyn Topinka