The BGS Lexicon of Named Rock Units — Result Details
Ballinamallard Mudstone Formation [Obsolete: use SHAN]
| Computer Code: | BLM | Preferred Map Code: | BLM |
|---|---|---|---|
| Status Code: | Full | ||
| Age range: | Brigantian Substage (CX) — Pendleian Substage (CE) | ||
| Lithological Description: | [Obsolete: use SHAN] Mudstone; grey-red and purple-red mottled, with micaceous siltstone and thin, fine-grained sandstones. | ||
| Definition of Lower Boundary: | Not exposed, presumed to be gradation from underlying Ballyreagh Conglomerate Formation. | ||
| Definition of Upper Boundary: | Not exposed, everywhere faulted out. | ||
| Thickness: | c.1000 metres. | ||
| Geographical Limits: | The south-western part of the Fintona Block, Northern Ireland. | ||
| Parent Unit: | none recorded or not applicable | ||
| Previous Name(s): | Dingle Beds [Obsolete Name and Code: Use FIN, TPMS, BRC, BLM]
(-1993)
Ballinamallard Formation [Obsolete Name and Code: Use BLM] (-3857) |
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| Alternative Name(s): | Shanmullagh Formation |
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| Stratotypes: | |||
| Type Section | The Ballinamallard River, County Fermanagh, Northern Ireland, 300m east of the village. | ||
| Reference(s): | |||
| Wilkinson S B. 1882. The geology of the country around Enniskillen, Fivemiletown, Trillick, Lisbellaw and Maguiresbridge.Explanatory Memoir to accompany Sheet 45 of the maps of the Geological Survey of Northern Ireland, Dublin and London. | |||
| Mitchell, W I and Owens, B, 1990. The geology of the western part of the Fintona Block, Northern Ireland: Evolution of Carboniferous basins. Geological Magazine, Vol.127 (5), 407-426. | |||
| 1:50K maps on which the lithostratigraphical unit is found, and map code used: | |||
| N45 N33 | |||