Origin and timing of spilitic alterations in volcanic rocks from Gluszyca Gorna in the Intra-Sudetic Basin, Poland.

ABSTRACT: The formation of spilitic assemblages (i.e. chlorite and albite) has been ubiquitously involved during the evolution of continental early-Permian volcanics from the Intra-Sudetic Basin (ISB). Based on the investigation of laccolith-type and variably-altered trachyandesite exposure in the vicinity of Głuszyca Górna (Lower Silesia, Poland), we have demonstrated that apatite fission-track dating (AFT), coupled with chlorite geothermometry, can be successfully applied to denote the timing of low-temperature alterations within volcanic rocks. The primary magmatic assemblages of the trachyandesites (i.e. augite and andesine-labradorite) have been affected by chloritization and alblitization respectively, followed by the formation of secondary titanite, celadonite, and calcite. The chlorite speci

SUBMITTER: Powolny T 

PROVIDER: S-EPMC9273604 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature