The controls of post-entrapment diffusion on the solubility of chalcopyrite daughter crystals in natural quartz-hosted fluid inclusions

Abstract

The presence of chalcopyrite daughter crystals in natural quartz-hosted fluid inclusions that do not dissolve when heated to trapping conditions suggests that inclusions are subject to post-entrapment modifications that affect chalcopyrite solubility. Previous double capsule experiments conducted by Mavrogenes and Bodnar (1994)

Formation and evolution of multistage hydrothermal fluids in the Baishitouwa quartz–wolframite vein‐type deposit in the southern Great Xing'an Range tungsten belt, NE China: Constraints from individual fluid inclusion LA‐ICP‐MS analysis

“…Note that quartz‐hosted FIs can lose or gain H 2 , H 2 O, and small, single‐charged cations such as H + , Li + , Na + , Cu + , Ag + , and Au + in response to changes in the activity of these components in the external fluid (Bakker & Jansen, 1994; Guo & Audétat, 2018; Mavrogenes & Bodnar, 1994; Spencer et al, 2015; Zajacz et al, 2009). Currently unresolved is the question as to what degree and how commonly element concentrations measured by LA‐ICP‐MS are affected by post‐entrapment modification of FIs.…”