A ProvÃncia AurÃfera TapajÃ³s-Xingu: AvanÃ§os no ... - ADIMB

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The low-sulfidation (adularia-sericite)evolved to intermediate-sulfidation and Cu-Mo-(Au) porphyry mineralization overprint
Hydrothermal alteration in the volcanic rocks associatedwith the low-sulfidation mineralizationa) Sericitic alteration with adulariaSericite + quartz + adularia + pyrite + chalcopyrite + molybdenite + Femolybdenite+ anilite + chalcocite + covelite + sphalerite + gold + rutile +titaniteb) Propylitic alteration with adulariaChlorite + carbonate + epidote + fluorite + albite + adularia+ chalcopyrite + pyrite + quartz + leucoxene + rutile + baritec) Argillic alterationKaolinite + chalcedony + allophane + microcrystaline quartz + hematited) Sericitic alteration in shear zonesSericite + quartz + sulfides, without adularia
Page 1 and 2: A Província Aurífera Tapajós-Xin
Page 4 and 5: THE UATUMÃ MAGMATISMIncludes calc-
Page 6: 1.9 - 1.86 MAGMATIC-HYDROTHERMAL MI
Page 9: Schematic stratigraphy of the Tapaj
Page 12 and 13: Au high-sulfidationmineralizationCu
Page 14 and 15: Schematic cross-section of the high
Page 16 and 17: AluniteJuliani et al. (2005)Paleopr
Page 18 and 19: Pyrite sulfur isotopeTapajós HS: -
Page 22 and 23: Stratigraphy of volcanicrocks and p
Page 24 and 25: Rhyolites strongly affected by adul
Page 26 and 27: Quartz and sulfide veins in strongl
Page 30: Xingu areaLagler (2011)Juliani & Fe
Page 33 and 34: Ash tuffSpherulitesMarine calciaren
Page 36 and 37: Tapajós - XinguPearce et al. (1984
Page 40 and 41: The Palito Granite1.89 Ga Au-(Cu) p
Page 42 and 43: GEOCHEMISTRYHarris et al. (1986) Sc
Page 44 and 45: Palito Alkali-calcic g ran ite(a d
Page 50 and 51: CpyGa + SpCpyGa + Sp + Cpy
Page 53 and 54: Mineral Chemical formula Mineral Ch
Page 55 and 56: Hydrogen Isotopic compositionMinera
Page 57: FLUID INCLUSION STUDYUsero et al. (
Page 65 and 66: Fig. 2.5 Reconstruction of cratons
Page 67: Carneiro et al. - See the poster ex
Page 73:
Volcanic coverANP
Page 84:
LS + Por(Cu+Mo+(Au)HS (Au)??Por (Au
Page 89:
AcknowlegmentsWe are greatly indebt
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