By A. N. Sial, J. S. Bettencourt, C. P. De Campos, V. P. Ferreira
This quantity brings jointly a set of papers that summarize present principles and up to date growth within the examine of granite-related mineralization platforms. they supply a mixture of box, experimental and theoretical reports. Papers are grouped in response to the most granite-related ore platforms: granite-pegmatite, skarn and greisen-veins, porphyry, orogenic gold, intrusion-related, epithermal and porphyry-related gold and base steel, iron oxide-copper-gold (IOCG), and designated case stories. The experiences offer a wide unfold when it comes to either house and time, highlighting granite-related ore deposits from Europe (Russia, Sweden, Croatia and Turkey) , the center East (Iran), Asia (Japan and China) and South the US (Brazil and Argentina) and spanning rocks from Palaeoproterozoic to Miocene in age.
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Additional info for Granite-Related Ore Deposits - Special Publication 350 (Geological Society Special Publication)
2001b). 5 – 5 m; medium, 5 – 15 m; large, 15 – 50 m; and very large, . 50 m thick (cf. Issa-Filho et al. 1980). 2, pegmatite type and class based on definitions synthesized by Cerny´ (1991) Main mineral resources and rare minerals Pegmatite size(1), type, class(2) Pedra Azul aquamarine, topaz, quartz Padre Paraı´so aquamarine, topaz, quartz, goshenite, chrysoberyl spodumene, ornamental granite, gem varieties of tourmaline, beryl and quartz, industrial feldspar, schorl, ambligonite, albite, petalite, cleavelandite, apatite, rare phosphates, cassiterite, columbite-tantalite, bismuthinite aquamarine, chrysoberyl very small to small, residual, rare element very small to small, residual, rare element District name Arac¸uaı´ Atale´ia Sa˜o Jose´ da Safira Conselheiro Pena Malacacheta Santa Maria de Itabira industrial feldspar, gem tourmalines, beryl ore, muscovite, aquamarine, garnet, albite, cleavelandite, apatite, heliodor, Mn-tantalite, bertrandite, microlite, zircon industrial feldspar, gem varieties of tourmaline, beryl and quartz, beryl ore, albite, cleavelandite, triphylite, brasilianite, barbosalite and other rare phosphates, spodumene, kunzite, lepidolite, muscovite, beryl, chrysoberyl (alexandrite formed in hydrothermal systems) emerald, alexandrite, aquamarine, amazonite Caratinga kaolin, corundum, beryl Espera Feliz aquamarine, topaz, quartz Espı´rito Santo kaolin, quartz; aquamarine, topaz Parent and host rock G5 granite G5 granite and charnockite very large to very small, residual, rare element G4 granite; mica schist, metawacke, quartzite, meta-ultramafic rock very small to small, residual, rare element very large to medium, residual, rare element to muscovite G5 granite very large to medium, residual, rare element G2 granite; mica schist, metawacke, quartzite, meta-ultramafic rock small to medium, residual, rare element G4 granite; mica schist, meta-ultramafic rock hydrothermal systems and anatectic pegmatites ultramafic schist, iron formation, migmatite migmatitic paragneiss small to large, anatectic, ceramic very small to small, residual, rare element very small to medium; anatectic (ceramic) and residual (rare element) G4 granite; mica schist, metawacke, quartzite, meta-ultramafic rock G5 granite migmatitic paragneiss and G5 granite GRANITES AND PEGMATITES, EASTERN BRAZIL 43 significant deposits of emerald, alexandrite and/or aquamarine.
Additional data supported a regrouping into five suites (G1 to G5 from De Campos et al. 2004 and Pedrosa-Soares et al. 2008). In the Brazilian geological literature, the term suite has usually been applied to single batholiths and smaller bodies, as well as to local petrological associations, named after a confusing plethora of geographical names. This is the reason why, in this work, we use the designations G1 to G5 supersuites, instead of suites and geographical names, to avoid misunderstandings.
2004); Vauchez et al. (2007); Vieira (2007); Gomez (2008); Novo (2009); Petitgirard et al. (2009), and references therein. This supersuite includes suites, batholiths and stocks locally named Brasilaˆndia, Derribadinha, Divino, Estrela-Muniz Freire, Galile´ia, Guarataia, Manhuac¸u, Mascarenhas-Baixo Guandu, Muriae´, Sa˜o Vitor, Teo´filo Otoni, Valentim and others. The G1 supersuite mainly consists of tonalite to granodiorite stocks and batholiths, with mafic to diorite facies and autoliths, regionally deformed during the Brasiliano orogeny but with locally well-preserved magmatic features (Figs 1a & 2).