| Computer Code: |
RTD |
Preferred Map Code: |
symb |
| Status Code: |
Full |
| Age range: |
Quaternary Period (Q)
— Quaternary Period (Q) |
| Lithological Description: |
River Terrace Deposits consist of alluvium forming one of a series of level surfaces in a stream or river valley, produced as the dissected remnants of earlier abandoned floodplains.
Sand and gravel, locally with lenses of silt, clay or peat. |
| Definition of Lower Boundary: |
none recorded or not applicable
|
| Definition of Upper Boundary: |
none recorded or not applicable
|
| Thickness: |
none recorded or not applicable
|
| Geographical Limits: |
none recorded or not applicable
|
| Parent Unit: |
Fluvial deposits (FLUV)
|
| Previous Name(s): |
River terrace (undifferentiated) [Obsolete Name and Code: Use RTD]
(-4762)
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| none recorded or not applicable |
| Reference(s): |
| McMillan, A A, and Powell, J H. 1999. The classification of artificial (man made) ground and natural superficial deposits. British Geological Survey Research Report, RR/99/04. |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
E021
E078
E003
S032
S055
S055
S056
S066
S084
S030
S039
S096
S076
S083
S083
S084
S093
S093
S096
S052
S052
|
