| Computer Code: |
NCHD |
Preferred Map Code: |
SYMB |
| Status Code: |
Full |
| Age range: |
Ediacaran Period (AD)
— Ediacaran Period (AD) |
| Lithological Description: |
Coarse-grained inequigranular diorite, comprising a dark grey matrix with c.40-50% of white, subhedral plagioclase crystals. Fine-grained and equigranular at chilled margin. |
| Definition of Lower Boundary: |
Margins generally cut Charnian bedding at high angles and show chilling within c.5-10m of contact. |
| Definition of Upper Boundary: |
None. |
| Thickness: |
c.60m, sheet like bodies. |
| Geographical Limits: |
Locally exposed northwards from Ulverscroft to the southern outskirts of Shepshed. |
| Parent Unit: |
Not Applicable (-)
|
| Previous Name(s): |
North Charnwood Diorites [Obsolete Name and Code: Use NCHD]
(-2954)
|
| Alternative Name(s): |
none recorded or not applicable
|
| Stratotypes: |
| Type Section |
Longcliffe Quarry. |
| Reference Section |
Five Tree Plantation. |
| Reference(s): |
| Carney, J N. 1994. Geology of the Thringstone, Shepshed and Loughborough districts (SK41NW, SK41NE and SK51NW). British Geological Survey Technical Report WA/94/08. |
| Worssam, B C and Old, R A, 1988. Geology of the country around Coalville. Memoir of the British Geological Survey, Sheet 155 (England and Wales) |
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: |
|
E155
E141
|
