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Alan Santos Polo,Guo Weimin,Fernando Rivera,Colombo Tassinari,Luis Cerpa,Shoji Kojima
Pág. 445 - 470
Early Jurassic arc-related igneous rocks host porphyry copper prospects and gold-bearing quartz vein deposits in southern Peru. Ten new zircon U-Pb ages for wall rocks of gold-bearing quartz veins, Jurassic rocks and copper-mineralized porphyry bodies in...
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Veronica Herrera,Jose Cembrano,Viviana Olivares,Shoji Kojima,Gloria Arancibia
The interplay between fluid transport and crustal deformation is fairly well known in theory; however, it has seldom been described in actual field examples. The structural, microstructural and microthermometric analysis of fault-vein networks spatially ...
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Asahiko Sugaki,Eduardo Campos,Shoji Kojima
Pág. 139 - 155
The Panulcillo skarn copper deposit developed in an Early Cretaceous (Valanginian) volcano-sedimentary sequence intruded by a Cretaceous diorite. The exoskarn zone of the deposit is composed of garnet skarn comprising grandite garnet (Ad12.9-47.4) and ph...
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Santiago Collao,Shoji Kojima,Roberto Oyarzun
RESUMEN:En la franja costera de Chile Central-Sur, afloran mantos de sulfuros macizos, emplazados en esquistos verdes de edad paleozoica, en actitud concordante con la foliacion penetrativa regional. El uso de blenda como geobarometro, en los cuerpos min...
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