Abstract: The Martabe deposit, located in the North Sumatra, Indonesia, is a world-class high-sulfidation epithermal Au-Ag deposit discovered in recent years. Based on a comprehensive review of previous knowledge of this deposit, this paper present a summary of its metallogenic geological features, aiming to enrich the cases of epithermal deposits and guide exploration of this type of deposits. The Martabe deposit has similar alteration zonation with typical high-sulfidation epithermal deposit, with zones such as silica, advanced argillic, argillic, and prophylitic zones from the core to the margin. Zircon U-Pb dating on ore-bearing dacite yielded an age of (3.8±0.5)Ma, while two ages of (3.3±0.1) Ma and (2.1±0.1)Ma were obtained from Ar-Ar age determination on

hydrothermal alunite, indicating a brief interval between diagenesis and mineralization and two stages of advanced argillic alteration. Mineralization was associated with the interaction between magma-sourced fluid and meteoric water and further intensified by weathering and erosion following ore-forming. Martabe deposit shares characteristics with the classical high-sulfidation epithermal deposits, displaying prospecting signals in the aspects of tectonic setting, lithology, alteration, and geochemical explorations.

Key words: Indonesia, Martabe, epithermal, Au-Ag deposit