| Computer Code: |
GMDU |
Preferred Map Code: |
notEntered |
| Status Code: |
Full |
| Age range: |
Pleistocene Epoch (QP)
— Pleistocene Epoch (QP) |
| Lithological Description: |
Glaciomarine deposits are sediments, glacial in origin, deposited in marine waters. Fine-grained (silt and clay) deposits of subtidal sea-bed environments may or may not contain marine macro/micro fauna and may have been deposited from suspension in cold freshwater plumes (fed by meltwaters) within saline waters. Such deposits have a high clastic content derived from glaciers. Dropstones from floating ice are common. Coarse-grained deposits (sand and gravel) are present as intertidal beach and subtidal (shoreface) deposits. Synonym: glacimarine deposits.
Variable lithology. |
| 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: |
Proglacial deposits (PGDEP)
|
| Previous Name(s): |
Glacio-marine deposits (undifferentiated) [Obsolete Name and Code: Use GMDU]
(-286)
|
| 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 |
