| Computer Code: |
SAMD |
Preferred Map Code: |
notEntered |
| Status Code: |
Full |
| Age range: |
Quaternary Period (Q)
— Quaternary Period (Q) |
| Lithological Description: |
Salt marsh deposits consist of dominantly very fine-grained sand and mud, with interbedded shell layers, plant roots, characterised by irregular wavy bedding, deposited on flat, poorly drained land that is subject to periodic or occasional flooding by saline or brackish water. The salt marsh is usually covered by a thick mat of grassy, halophitic plants. Synonyms: saltmarsh; merse deposits, Scotland.
Sand, silt and clay with organic debris. |
| 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): |
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: |
|
S095
S094
S094
E355
E356
E048
E059
S084
S041
S061
S087
E326
E096
|
