Deposition Flashcards
1
Q
Transportation positions
A
Supraglacial
Englacial
Subglacial
2
Q
Deposition processes
A
Ice ablation
Lodgement
Deformation
Flow
3
Q
Ice Ablation
A
Rock debris deposited by melting of surrounding ice
4
Q
Lodgement
A
Subglacial debris becomes lodged in glacier bed
Friction between debris and bed exceeds drag of glacier
5
Q
Lodgement till
A
Highly compact
Due to weight of overlying ice
Rounded, less angular
6
Q
Deformation
A
Rock unable to resist glacial force/pressure
7
Q
Flow
A
High meltwater content causes rock debris to creep/slide/flow during its release from ice