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

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Au high-sulfidationmineralizationCu-Mo-(Au) low-sulfidationoverprinted by a porphyry typemineralizationPaleoproterozoic arkoses and arenitesHS mineralization
Hydrothermal alteration in the volcanic rocks in the highsulfidationmineralizationa) Silicification and hematitizationMassive and vuggy silica with microcrystalline quartz and minor sulfides partially or totally replacedby hematite, pyrophylite, alunite and relicts of feldsparsb) Advanced argillic alteration with alunite and quartzAlunite + natroalunite + andalusite + corindon + pyrophyllite + quartz + rutile +woodhousenite-svambergite + hindaslite + topaz + famatinite + tetraedrite–tennantite + tiemannita+ barite + pyrite + chalcopyrite + bornite + covellite + galena + sphalerite + enargite-luzonite +aguilarite + clorargirite + native copper, silver and goldc) Advanced argillic alterationPyrophyllite + quartz + pyrite + andalusite + diaspore + rutile + woodhousenitesvanbergite+ tourmaline + fluorite + hematited) Intermediate argillic alterationkaolinite + dickite + sericite + chlorite + feldspar relictse) Sericitic alterationSericite + quartz + zeolite + clay-minerals + sulfidesf) Propylitic alterationEpidote + clinozoisite + chlorite + actinolite + albite + zeolite + carbonate + sulfides
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 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 20 and 21: The low-sulfidation (adularia-seric
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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