| Computer Code: |
TRD |
Preferred Map Code: |
notEntered |
| Status Code: |
Full |
| Age range: |
Quaternary Period (Q)
— Quaternary Period (Q) |
| Lithological Description: |
Tidal river or creek deposits consist of sediments comprising a range of grain sizes from mud to sand, deposited within channels in tidal flats and lagoons. Synonym: tidal channel deposits.
Variable lithology. Mainly silt and clay; locally may contain peat, sand and gravel. |
| 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: |
Intertidal deposits (ITD)
|
| Previous Name(s): |
Tidal Channel Deposits [Obsolete Name And Code: Use TRD]
(TCHD)
|
| 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: |
|
E014
E015
E355
E356
E048
E059
E326
E096
|
