The BGS Lexicon of Named Rock Units — Result Details

Lees Bottom Lava Member

Computer Code: LSBB Preferred Map Code: LSBB
Status Code: Full
Age range: Brigantian Substage (CX) — Brigantian Substage (CX)
Lithological Description: Vesicular and non-vesicular basalt.
Definition of Lower Boundary: Basalt lava of the Lees Bottom Lava Member is underlain by pale and medium grey limestone, locally tuffaceous, of the Monsal Dale Limestone Formation.
Definition of Upper Boundary: Basalt lava of the Lees Bottom Lava Member is overlain by pale and medium grey limestone of the Monsal Dale Limestone Formation.
Thickness: A thickness of 8.5 m is proved at the type locality.
Geographical Limits: Restricted to the area west of Ashford (SK 19 69), in the Peak District inlier.
Parent Unit: Monsal Dale Limestone Formation (MO)
Previous Name(s): Lees Bottom Lava (-3540)
Lees Bottom Basalt (-1670)
Alternative Name(s): none recorded or not applicable
Stratotypes:
Type Section  Lees Bottom, near A6, Taddington Dale: 8.5 m thickness of vesicular basalt. Aitkenhead et al., 1985. 
Reference(s):
Walters, S G and Ineson, P R. 1981. A review of the distribution of and the correlation of igneous rocks in Derbyshire, England. Mercian Geologist, Vol. 8, 81-132. 
Aitkenhead, N, Chisholm, J I and Stevenson, I P. 1985. Geology of the country around Buxton, Leek and Bakewell. Memoir of the British Geological Survey, England and Wales Sheet 111. 
1:50K maps on which the lithostratigraphical unit is found, and map code used:
E111