Page 157 - Sedimentology and Stratigraphy

144 Rivers and Alluvial Fans

Stream channel fans. Channel-fill units of conglomerate and sandstone in fining-up successions (braided stream facies)
Notes

GRAVEL Structures etc boul cobb pebb

SAND MUD vf f m c vc gran silt
Stream channel alluvial fan Lithology clay deposits.

Scale
ms- 10s m
fan
Sheetflood fan deposits. Horizontally stratified conglomerate and sandstone alluvial
Notes
stream-channel

Structures etc
GRAVEL boul cobb pebb gran

SAND vf f m c vc and
MUD silt clay sheetflood
Sheetflood alluvial fan Scale Lithology ms- 10s m debris-flow,

Debris flow dominated fan. Matrix-supported, poorly sorted conglomerate beds, no sedimentary structures through logs
Notes
sedimentary
Structures etc
boul
GRAVEL cobb pebb gran
SAND vf f m c vc
MUD silt clay Schematic
Debris flow alluvial fan Scale Lithology ms- 10s m 9.21 Fig.