The BGS Lexicon of Named Rock Units — Result Details

Endrick Sand Member

Computer Code: ENDR Preferred Map Code: notEntered
Status Code: Full
Age range: Holocene Epoch (QH) — Holocene Epoch (QH)
Lithological Description: The Mains of Kilmaronock Borehole (Browne and McMillan, 1989, Figure 6) contains the standard section in the Endrick Sand Member (5.99m to 13.6m in depth). The typical lithology is loose, fine- to medium-grained sand with some silt layers. The deposit is reddish brown and contains abundant plant remains and some dark organic clay bands. The sand usually appears to be flat-bedded but traces of cross-bedding are also present. Overall the deposit becomes coarser-grained upwards. The sediment at Mains of Kilmaronock might have been deposited by a meandering river in similar environments to those of the present Endrick. They could also be partly deltaic in origin.
Definition of Lower Boundary: Transitional base with the underlying Kilmaronock Silt Member (Strathendrick Formation).
Definition of Upper Boundary: Sharp conformable contact with the overlying Erskine Clay Member (Clydebank Clay Formation).
Thickness: Veneer to over 7.5m
Geographical Limits: The Endrick Sand Member of the Strathendrick Formation is only known to occur in its type area in the Loch Lomond basin including the lower part of the Endrick valley.
Parent Unit: Strathendrick Formation (SRCK)
Previous Name(s): Endrick Formation (-4639)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Area  Lower Endrick valley and Lock Lomond basin. 
Reference Section  British Geological Survey Mains of Kilmaronock Borehole (Registered No. NS47/NW3). Browne and McMillan, 1989a. 
Reference(s):
Browne, M A E and McMillan, A A. 1989a. Quaternary geology of the Clyde valley. British Geological Survey Research Report, SA/89/1. 
Forsyth, I H, Hall, I H S and McMillan, A A. 1996. Geology of the Aidrie district. Memoir of the British Geological Survey, Sheet 31W (Scotland). 
Hall, I H S, Browne, M A E and Forsyth, I H. 1998. Geology of the Glasgow district. Memoir of the British Geological Survey, Sheet 30E (Scotland). 
Browne, M A E and McMillan, A A. 1989b. Geology for land use planning: drift deposits of the Clyde valley Volume 1: Planning Report. British Geological Survey Technical Report, WA/89/78. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S038