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| evidence for an epigenetic origin of the Courtbrown ZnĀ±Pb deposit, Ireland Received: 5 July 2000 / Accepted:...Abstract Mineralisation at the Courtbrown deposit in south-western Ireland is concentrated in the basal...a later base-metal-rich mineralisation event. Sphalerite, galena and pyrite of the later mineralisation...Waulsortian and Ballysteen Limestones in the Courtbrown area (from oldest to youngest): non-luminescent...early Chadian age for the Courtbrown area. Pressure-shadows around sphalerite further indicate that mineralisation |
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| Prospect is located in County Limerick, south-central Ireland. Multiple zones of ZnāPb mineralisation have...mineralisation is composed of pyritemarcasite, sphalerite and galena with gangue Fe-dolomite and calcite...intrusive rocks (dykes and polymict breccias) and ZnāPb mineralisation. This association suggests that the...McCusker (*) : C. Reed Teck Ireland Ltd, The Murrough, Co. Wicklow, Ireland e-mail: James.mccusker@teck...Carboniferous carbonate rocks of Ireland host one of the worldās most significant ZnāPb districts. There have been |
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| sources for lead in Cu-polymetallic and ZnāPb mineralisation in Ireland: constraints from lead isotopes Received:...Abstract Devonian red bed-hosted deposits in SW Ireland occur either as low-grade stratiform disseminations...major quartz veins with copper-polymetallic deposits. Pb isotopic ratios vary according to the style of mineralisation...terms of ļ¬uid ļ¬ow homogenising the wide spread of Pb isotope ratios from the disseminated sulphides. This...data. Major quartz veins show a clustered array of Pb isotopic ratios and it is suggested that the bulk |
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| Ć Malcolm W. Wallace Zn-Pb mineralisation in the Silvermines district, Ireland: a product of burial diagenesis...mineralisation at the Silvermines zinc-lead-barium deposit. The base-metal sulphides post-date planar dolomite...tonnage of about 160 Mt at an average grade of 7.2% Zn and Pb, the Lower Carboniferous carbonate sequence of...Irish Midlands is host to one of the worlds major Zn-Pb ore-ļ¬elds (Banks et al. 2002) (Fig. 1). Currently...temperatures. The Silvermines deposit has been described as a classic āāIrish-typeāā deposit, and has been used |
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| dolomitisation and mineralisation in the Irish Zn-Pb orefield Received: 25 October 2002 / Accepted:...lithiļ¬cation of Carboniferous carbonate sediments hosting Zn-Pb mineralisation in the Irish oreļ¬eld occurred at...for the cessation of economic mineralisation in Ireland. Keywords Diagenesis Ć Dolomite Ć Carbonate-hosted...Models for the genesis of the carbonate-hosted Zn-Pb deposits of the Irish oreļ¬eld remain controversial...description of the geological setting of Zn-Pb mineralisation in Ireland is beyond the scope of this contribution |
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| Implications for the Genesis of Sediment-Hosted Zn-Pb Deposits J. J. WILKINSONā CODES, University of Tasmania...complexity observed in other intracratonic basin-hosted Zn-Pb(-Ba) ore districts. This includes the coexistence...Silvermines, and Abbeytown, anomalous concentrations of Zn and Pb are common in the lower part of the Waulsortian...description of the geology and mineralization in Ireland is beyond the scope of this contribution and only...and Wilkinson, 2001). Abundant ore minerals are sphalerite, galena, and pyrite, with lesser but variable |
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| DISCUSSION CEMENTATION, HYDROTHERMAL ALTERATION, AND Zn-Pb MINERALIZATION OF CARBONATE BRECCIAS IN THE IRISH...EVIDENCE FROM THE COOLEEN ZONE, NEAR SILVERMINES, COUNTY TIPPERARYāA DISCUSSION CHRIS REEDā School of Earth...Carboniferous is crucial to an understanding of Irishtype Zn-Pb deposits. One of the key lines of evidence that...suggested for black matrix breccias elsewhere in Ireland (e.g., Hitzman et al., 1992). Specifically, we... and from localities outside Ireland. Mineralized breccias from Ireland have been described from Galmoy |
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| Carboniferous dolomites in the south and east of Ireland C L A I R E M. M U L H A L L & GEORGE D. S E...u s e u m Building, Trinity College, Dublin 2, Ireland (e-maik mulhallc@tcd, ie) Abstract: Dolomitized...Tournaisian rocks occur widely in Ireland. They host the major Zn-Pb ore bodies, at Lisheen and Galmoy...The laterally extensive Regional Dolomite of SE Ireland, examined at Lisheen and in Co. Carlow, is likely...hosted within Carboniferous carbonate rocks in Ireland has been the subject of recent study and debate |
 | Johnson, Aaron W., Shelton, Kevin L., Gregg, Jay M., Somerville, Ian D., Wright, Wayne R., Nagy, Zsolt R. (2009) Regional studies of dolomites and their included fluids: recognizing multiple chemically distinct fluids during the complex diagenetic history of Lower Carboniferous (Mississippian) rocks of the Irish Zn-Pb ore field. Mineralogy and Petrology, 96 (1) 1-18 doi:10.1007/s00710-008-0038-x | Journal (article/letter/editorial) |
| Carboniferous (Mississippian) rocks of the Irish Zn-Pb ore field Aaron W. Johnson & Kevin L. Shelton &...dolomite (Type 1) and in ore-stage carbonates and sphalerite (Types 2 and 3). The halogen geochemistry of...USA I. D. Somerville University College, Dublin, Ireland W. R. Wright Bureau of Economic Geology, Jackson...accreted to form the basement rocks underlying Ireland. These rocks consist mainly of folded and faulted...and resulted in uplift in central and southern Ireland. In the Upper Devonian, back-arc extension resulted |
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| Controls of seaļ¬oor subsidence, sedimentation and ZnāPb mineralization in the Irish Carboniferous J.J. Wilkinson...at least 1.5 km from the center of the Lisheen deposit. These various geochemical anomalies have potential...Geological setting. Simpliļ¬ed geological map of Ireland showing locations of main ore deposits. Insets...and stratigraphically controlled ore deposits in Ireland that are believed to have formed largely during...(Hitzman et al., 1998) and the highest concentration of Zn mineralization in the Earth's crust (Singer, 1995) |
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| Some Carbonate-Hosted PbāZn Deposits, SW China: Insights from the Maoping Deposit Lei Wang 1,2 , Runsheng...m15925201825@163.com (Y.Z.) Abstract: Carbonate-hosted PbāZn deposits are of major economic importance. The SichuanāYunnanā...Yangtze Block, comprises over 400 carbonated-hosted PbāZn deposits. However, ore-forming fluids recorded in...We investigated a fluid system for the Maoping deposit in the SYGMB, based on fluid inclusions, and HāOāHeāAr...showed that ore-forming fluids in the Maoping deposit are characterized by mixing of high-temperature |
 | | Report (volume) |
| Carboniferous dolomites in the south and east of Ireland 393 Index 407 This page intentionally left...Lower Carboniferous Waulsortian Limestones of Ireland. Systems using oxygen, carbon and strontium isotopes...Sevastopulo are also engaged with the Carboniferous of Ireland driven, like others, by the relationship of dolornitization...of the Bahamas (Cenozoic), western Canada and Ireland (Palaeozoic), and Israel (Mesozoic) probably formed...regionally extensive dolostones of the Carboniferous of Ireland that are petrographically and geochemically very |
