The BGS Lexicon of Named Rock Units — Result Details

Whita Sandstone Beds

Stratotypes:
Computer Code:	WTS	Preferred Map Code:	WHSD
Status Code:	Full
Age range:	Chadian Substage (CI) — Chadian Substage (CI)
Lithological Description:	Medium to thickly bedded, fine- to coarse-grained white, grey and pink sandstones with a few thin siltstones and sandy cementstones.
Definition of Lower Boundary:	Conformable on Birrenswark Volcanic Formation (Langholm).
Definition of Upper Boundary:	Passes upwards by alternation into interbedded sandstone, siltstone and and dolomitic limestone ('cementstone') facies of the Kirkbean Cementstone Member (Ballagan Formation).
Thickness:	c.300m (Langholm).
Geographical Limits:	Northumberland - Solway Basin. Langholm district (Scotland, Sheets 10E, 11 and 17).
Parent Unit:	Kirkbean Cementstone Member (KICM)
Previous Name(s):	Whita Formation [Obsolete Name and Code: Use WTS] (-3773) Whita Sandstone [Obsolete Name and Code: Use WTS] (-4409)
Alternative Name(s):	none recorded or not applicable
Partial Type Section	Whita Sandstone Beds, River Esk between Longwood and Broomholm, Langholm. Lumsden et al, 1967; Nairn, 1958.
Partial Type Section	Whita Member, Tarras Water upstream of Tarras Road Bridge, Langholm. Lumsden et al, 1967; Leeder, 1974.
Reference(s):
Leeder, M R. 1974. Lower Border Group (Tournaisian) fluvio-deltaic sedimentation and palaeogeography of the Northumberland Basin. Proceedings of the Yorkshire Geological Society, Vol.40, 129 - 180.
Lumsden G I, Tulloch W, Howells M F and Davies A. 1967. The geology of the neighbourhood of Langholm. Memoir of the Geological Survey, Sheet 11 (Scotland).
Nairn, A E M. 1958. Petrology of the Whita Sandstone, southern Scotland. Journal of Sedimentary Petrology. Vol. 28, p. 57 - 64.
1:50K maps on which the lithostratigraphical unit is found, and map code used:
S010 S011 S017

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