Computer Code: |
CHEN |
Preferred Map Code: |
notEntered |
Status Code: |
Full |
Age range: |
Quaternary Period (Q)
— Quaternary Period (Q) |
Lithological Description: |
Chenier deposits comprise sand occupying a long, low, narrow, wooded beach ridge or hummock which forms roughly parallel to a prograding shoreline, resting on peat or clay. Width varies from 40 to 400 m and length can be several tens of kilometres.
Sand and gravel; inter-chenier deposits are typically more clay- and silt-rich. |
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: |
Supratidal deposits (STDU)
|
Previous Name(s): |
none recorded or not applicable
|
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: |
none recorded or not applicable |