 | | Journal (article/letter/editorial) | | veins from the Yirisen deposit, Sula Mountains greenstone belt, Masumbiri, Sierra Leone Ibrahim J. Barrie... Abstract The auriferous veins at Yirisen, Masumbiri, Sierra Leone, occurring mainly in the form of sericitic...Mountains greenstone belt; Yirisen; Sierra Leone 1. Introduction The Yirisen gold deposit Žbetween latitude 08849X...08850X N and longitude 11844X and 11845X W, Sierra Leone., accessed by an adit and trenches, is located...the Archean basement complex of north-central Sierra Leone ŽFig. 1a.. Together with other smaller greenstone |  | | Journal (article/letter/editorial) | | metamorphic basement rocks of southwest Scotland and Northern Ireland MARTIN BARON* and JOHN PARNELL Department...metamorphic basement rocks of southwest Scotland and Northern Ireland host a number of base-metal sulphide-bearing...metamorphic basement rocks of southwest Scotland and Northern Ireland host a number of base-metal sulphide-bearing...metamorphic basement rocks of southwest Scotland and Northern Ireland. These results document the pressures...Simplified geological map of southwest Scotland and Northern Ireland with localities of abandoned mines sampled |  | | Journal (article/letter/editorial) | | diffusion in quartz from the Libčice orogenic gold deposit, Bohemian Massif Tomáš Hrstka a,⁎, Jean Dubessy...is reported for the Libčice orogenic-type gold deposit located in the Central Bohemian Plutonic Complex...formation of different types of fluids present in the deposit are discussed, including the genesis of HCO− 3...production/formation of HCO− 3 and H2 at the Libčice deposit remain open to discussion, reactions in the C–O–H...inclusion study is an important part of any ore deposit research and helps us to understand the fluid–rock |  | Pandalai, Hari Shankar, Jadhav, Gajanan Narayanrao, Mathew, Biju, Panchapakesan, V., Raju, K. Krishnam, Patil, M. L. (2003) Dissolution channels in quartz and the role of pressure changes in gold and sulfide deposition in the Archean, greenstone-hosted, Hutti gold deposit, Karnataka, India. Mineralium Deposita, 38 (5) 597-624 doi:10.1007/s00126-002-0345-9 | Journal (article/letter/editorial) | | in the Archean, greenstone-hosted, Hutti gold deposit, Karnataka, India Received: 23 August 2001 / Accepted:...deposition in the Archean, greenstone-hosted Hutti deposit have been studied using fluid inclusions and the...arsenopyrite, pyrite and gold at their distal ends, with calcite filling up the remaining part. These channels form...observed in the mineralized quartz veins of the Hutti deposit which provide evidence of transient pressure surges...Estimates of P and T are made for the Hutti gold deposit on the basis of arsenopyrite and chlorite geothermometry |  | | Journal (article/letter/editorial) | | typically made of a dominant mineral Žmostly quartz or calcite., or in rock-forming minerals within the massive...the present case.. Quartz vein in gold deposit, Sierra Leone ŽBarrie and Touret, 1999.. Žtypically =25...inclusions in a quartz vein from a gold deposit in Sierra Leone ŽBarrie and Touret, 1999.. Once the GSI...in Fig. 6, the case of the gold-bearing from Sierra Leone, presented in Fig. 5, is relatively straightforward...veins from the Yirisen deposit, Sula Mountains greenstone belt, Masumbiri, Sierra Leone. Ore Geol. Rev |
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