In the Cenozoic Central Volcanic Zone of Andes, genetic relationships between regional deformation, volcanic activity, and epithermal mineralization are not fully established. order to shed some light on matter, we present new macro mesoscopic structural data, fault-slip data inversion 40Ar-39Ar geochronology for rocks, hydrothermally altered equivalents Ag–Pb–Zn Quevar Complex, which is locate...

The Tuscany Magmatic Province consists of a Miocene to Pleistocene association wide variety rock types, including peraluminous crustal anatectic granites and rhyolites, calcalkaline shoshonitic suites ultrapotassic lamproites. In addition the magma types already recognised, occurrence new, distinct type at Capraia Elba islands in mafic enclaves San Vincenzo rhyolites has been suggested by recen...

Explosive eruptions involve mainly silicic magmas in which sulfur solubility and diffusivity are low. This inhibits sulfur exsolution during magma uprise as compared to more mafic magmas such as basalts. Silicic magmas can nevertheless liberate large quantities of sulfur as shown by the monitoring of SO2 in recent explosive silicic eruptions in arc settings, which invariably have displayed an e...

The Yangtze Block records Neoproterozoic magmatism and sedimentation related to the breakup of Rodinia is an important piece in reconstruction supercontinent. However, tectonic setting position this block remain a subject debate. In present study, we report zircon U-Pb ages Hf isotopic composition geochemical Nd-Pb compositions for meta-volcanic rocks exposed Zhangbaling uplift NE Block. volcan...

Sudden changes of eruption styles and magma compositions at arc volcanoes are enigmatic processes. Nishinoshima volcano, western Pacific, has had historical eruptions in 1973–1974 from 2013 on off to the present day. These were characterized by effusive Strombolian andesite magmas until mid-June 2020, when they suddenly transitioned violent explosive that produced tephra fallout over a wide are...

Abstract This study presents petrographic and geochemical characterization of 46 pre-impact rocks 32 impactites containing and/or representing impact melt rock from the peak ring Chicxulub structure (Yucatán, Mexico). The aims were both to investigate components that potentially contributed (i.e., lithologies) better elucidate emplacement at Chicxulub. presented here are subdivided into two sam...

Copper and associated gold mineralization in the Mundiyawas-Khera area of western India is hosted by Proterozoic felsic volcanic rocks rhyo-dacite composition. Signatures hydrothermal alteration represented sericite, epidote, scapolite carbonates are well observed around ore zone. The with gently to flat sloping REE pattern, variable negative Eu anomaly, intermediate abundances HFSE moderate lo...

The Shand Cu-Mo deposit is located in the Orkhon-Selenge depression, Northern Mongolia. It lies near Erdenetiin Ovoo porphyry deposit, which together define one of Mongolian’s most economically significant metallogenic belts. In (Au?) several ore related breccia types are associated with porphyritic granodiorite intrusions, and they contain pre-, synand post-mineralized stocks, magmatic-hydroth...