 | | Journal (article/letter/editorial) | | Magmatic evolution of the Mantos Blancos copper deposit, Coastal Range of northern Chile: insight from...appendix, 2008. The Mantos Blancos copper deposit (500 Mt at 1.0% Cu) was affected by two superimposed hydrothermal...mafic dike swarm cross - cuts all rocks in the deposit. Two types of granodioritic porphyries can be distinguished...polymictic magmatic hydrothermal breccia of the deposit are compositionally more evolved than their host...for the release of hydrothermal fluids to form the Cu mineralization. (Authors’ abstract) 105013 Li, X |  | | Journal (article/letter/editorial) | | 6 The MineralDepositsand Metallogenesis of the Fiji Platform HOWARD COLLEY * Instituut voor Aardwetenschappen... The Fiji platform has a thick, youthful crust of ensimaticorigin. Stratigraphy within the Fiji islandsindicatesa...depositsin Fiji includevarioustypesof massivesulfide;manganeseores; disseminated porphyry-type Cu-Au deposits;...Plioceneage. Nearly all the major mineraldepositsin Fiji are associated with theserocks. Volcanic and structuralfactors...orogenyand deepfracturing of the Fiji platform--factorsof fundamentalimportanceto Fiji mineralization;however,a |  | Orovan, Evan A., Cooke, David R., Harris, Anthony C., Ackerman, Ben, Lawlis, Erin (2018) Geology and Isotope Geochemistry of the Wainaulo Cu-Au Porphyry Deposit, Namosi District, Fiji. Economic Geology, 113 (1) 133-161 doi:10.5382/econgeo.2018.4546 | Journal (article/letter/editorial) | | Geochemistry of the Wainaulo Cu-Au Porphyry Deposit, Namosi District, Fiji* Evan A. Orovan,1,2,†David... calc-alkalic, Wainaulo Cu-Au porphyry deposit of the Namosi district, Fiji, hosts distinct styles of...substantial porphyry Cu-Au resource. The early stages produced medium-grade Cu, low-grade Au and concentric...diorite intrusions. Discrete zones of high-grade Cu and Au and calc-sodic alteration were then superimposed...As the magmatic-hydrothermal system waned, lower Cu and Au grades, with a weaker intensity of calc-sodic |  | | Book | | volcanic-sedimentary massive sulphide deposits. Sulphide deposit A is assumed to overlie source area of base metal...combinations of elements: Ca-Mg, Na-K, Fe-Mn, Pb-Zn, Cu-Zn, Ni-Co. A generalized schematic illustration of...source (deposit A, Fig. 5) which may flow from the source area to a nearby depression (deposit B, Fig...single element haloes, are much more restricted in deposit B-type situations; however, multielement haloes... Flin Flon, Manitoba. Vertical sulphide zone (Zn-Cu) at a depth of 100 ft (30 m); overburden 25 ft (7 |
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