124
4 TRANSPORTATION AND SEDIMENTATION
Fig. 4.31. Triangular diagram that attempts to show the relationship between the various sedimentary processes and their deposits. The arrows at the apices of the triangle indicate downward, upward, and lateral grain
movement, respectively.
In conclusion it must be stated that gravity-related sedimentary processes are not well
understood. They are often observed today, though few observers survive to write about
their experiences, and their deposits may be studied. They range from avalanches, via debris flows, grain flows, and/or fluidized flows, to turbidites. This spectrum is marked by
decreasing gradient and sand concentration and increasing velocity and water content.
Further detailed discussions of gravitational processes and resultant deposits can
be found in Hampton (1972), Middleton and Hampton (1976), Howell and Normark
(1982), and Stow (1985, 1986). Figure 4.31 attempts to illustrate the relationships between the various sedimentary processes and their products.
SELECTED B I B L I O G R A P H Y
Allen, R A. (1997). "Earth Surface Processes." Blackwell Science, Oxford. 416pp.
Baum, G. R., and Vail, R R. (1998). "Gravity Currents: In the Environment and the Laboratory."
Cambridge University Press, Cambridge, UK. 244pp.
Bennett, M. R., and Glaisner, N. E (1996). "Glacial Geology, Ice Sheets and Landforms." Wiley,
Chichester. 36pp.
4 TRANSPORTATION AND SEDIMENTATION
Fig. 4.31. Triangular diagram that attempts to show the relationship between the various sedimentary processes and their deposits. The arrows at the apices of the triangle indicate downward, upward, and lateral grain
movement, respectively.
In conclusion it must be stated that gravity-related sedimentary processes are not well
understood. They are often observed today, though few observers survive to write about
their experiences, and their deposits may be studied. They range from avalanches, via debris flows, grain flows, and/or fluidized flows, to turbidites. This spectrum is marked by
decreasing gradient and sand concentration and increasing velocity and water content.
Further detailed discussions of gravitational processes and resultant deposits can
be found in Hampton (1972), Middleton and Hampton (1976), Howell and Normark
(1982), and Stow (1985, 1986). Figure 4.31 attempts to illustrate the relationships between the various sedimentary processes and their products.
SELECTED B I B L I O G R A P H Y
Allen, R A. (1997). "Earth Surface Processes." Blackwell Science, Oxford. 416pp.
Baum, G. R., and Vail, R R. (1998). "Gravity Currents: In the Environment and the Laboratory."
Cambridge University Press, Cambridge, UK. 244pp.
Bennett, M. R., and Glaisner, N. E (1996). "Glacial Geology, Ice Sheets and Landforms." Wiley,
Chichester. 36pp.