Database name: |
World Mississippi Valley-type deposits |
Custodial agency: |
Geological Survey of Canada |
Compilers: |
D. F. Sangster |
Release date: |
2015-02-06 |
|
|
Deposit name(s): |
Newton Cashel |
Political location(s): |
Ireland; Province or state: County Longford |
Deposit clan (type): |
Mississippi Valley-type |
Deposit status: |
occurrence; Status comments: No grade-tonnage data available |
Commodities: |
Zn; Pb |
Mineralization styles: |
breccia cement; fracture fill; disseminated in primary porosity |
Geological ages: |
Courceyan (host rocks) |
Tectonic setting: |
continental platform (host rocks) |
Host rocks: |
(1) sedimentary; carbonate (Mixed lithologies); Depositional setting: Shallow marineIndividual lithologies: | micrite quartz sandstone shale | Host rock stratigraphy: | Mixed Micrite Unit member |
(2) sedimentary; quartzite-sandstone; Depositional setting: Shallow marineIndividual lithologies: | quartz sandstone | Host rock stratigraphy: | Basal Clastics Unit member |
(3) sedimentary; quartzite-sandstone; Depositional setting: Shallow marineIndividual lithologies: | quartz sandstone (calcareous matrix; contains shale interbeds) | Host rock stratigraphy: | Upper Sandstone Unit member |
|
Mineralogy: |
pyrite, sphalerite, galena, dolomite, barite, calcite, dolomite |
References: |
Crowe, R. W. A., 1986 |
The Structural and Stratigraphic Setting of Zn-Ba-Pb Mineralization at Newtown Cashel, Co. Longford |
in Geology and Genesis of Mineral Deposits in Ireland, Edited by Andrew, C. J.; Crowe, R. W. A.; Finlay, S.; Pennell, W. M.; Pyne, J. F., Irish Association for Economic Geology, Cahill Printers, Ireland, 711 p, p. 331 - 340 |
|