Very low-grade secondary minerals as indicators of palaeo-hydrothermal systems in the Upper Cretaceous volcanic succession of Hannah Point, Livingston Island, Antarctica

• Published in: Applied Clay Science
• Main Authors: Bastías, Joaquín, Fuentes, Francisco, Aguirre, Luis, Hervé Allamand, Francisco, Demant, Alain, Deckart, Katja, Torres, Teresa
• Format: Article in Journal/Newspaper
• Language: English
• Published: Elsevier 2016
• Subjects: Zeolite; Low-temperature metamorphism; Smectite-chlorite; Geothermal; Burial metamorphism; Antarctica; Hydrothermal alteration; Livingston Island; Hannah; Hannah Point; Antarc*
• Online Access: https://doi.org/10.1016/j.clay.2016.07.025; https://repositorio.uchile.cl/handle/2250/146347

The Upper Cretaceous basic volcanic succession in Hannah Point, Livingston Island, Antarctica, presents a widespread occurrence of very low-grade secondary minerals. They occur filling amygdules, veins and veinlets, and replacing phenocrysts and groundmass/matrix. The paragenetic associations includ...