|Latitude & Longitude (WGS84):||53° 51' 37'' North , 9° 16' 18'' West|
|Latitude & Longitude (decimal):||53.86028,-9.27167|
|Other regions containing this locality:||Ireland (island)|
|Köppen climate type:||Cfb : Temperate oceanic climate|
Moneen Quarry is a large working (in 2008) limestone quarry, operated by Roadstone Provinces Plc, on the outskirts of Castlebar, Co. Mayo in the west of Ireland (Irish grid ref. M 162908).
The rock type is Lower Carboniferous limestone and contains fossils of corals and shells, the latter commonly Nautiloids.
Small cavities occasionally occur in the fossil shells, and sometimes also without any apparent association with fossils. Cavities are scarce, often being confined to particular beds within the limestone, and even then, only parts of those beds, as can be seen in the quarry face. They are rarely more than 10 cm across but contain a variety of minerals, and when these do not completely infill the cavities they can afford small, well-crystallised specimens.
Situation in 2008: Due to health and safety concerns access to the quarry is only by prior appointment, and will include a safety induction video and a chaperon.
9 valid minerals.
Rock Types Recorded
Select Rock List TypeAlphabetical List Tree Diagram
Entries shown in red are rocks recorded for this region.
This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.
Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org
323.2 - 358.9 Ma
|Paleozoic sedimentary rocks|
Age: Mississippian (323.2 - 358.9 Ma)
Lithology: Sedimentary rocks
Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. 
323.2 - 358.9 Ma