Geology and pyrite sulfur isotopes of the Suoluogou gold deposit: Implication for crustal continuum model of orogenic gold deposit in northwestern margin of Yangtze Craton, SW China

• Ore fluid is considered to derive from metasomatized lithospheric mantle. • A crustal continuum model of orogenic gold deposits proposed for the northwestern margin of Yangtze. • The δ34S value of ore fluid decreased during its evolution due to phase separation. • Suoluogou is a typical mesozonal orogenic gold deposit associated with crustal shearing. Since the crustal continuum model was proposed mainly based on the variation of...