Southwestern Guizhou is a famous Carlin-type gold mineralization area in China,with a known gold resource of approximately 750 tons.In recent years,discoveries of basalt-hosted gold deposits have been made in this area,with the large-scale gold deposit,Jiadi,and the medium-sized gold deposit,Damaidi,as typical representatives,leading to breakthroughs and understanding in mineral exploration.The primary host rocks for native gold mineralization in this area are basalt and sedimentary rocks.Through comparative analysis and research of basalt-hosted gold deposits and sedimentary rock-hosted gold deposits in Southwestern Guizhou,the following conclusions are drawn:①The definition of Carlin-type gold deposits may have certain limitations and needs further expansion.Basalt-hosted gold deposits and sedimentary rock-hosted gold deposits in Southwestern Guizhou share similar typical characteristics and are the Carlin-type gold deposits resulting from the same regional magmatic fluid metallogenesis,and may have formed in the same regional metallogenic event.Therefore,they should be considered systematically in deep exploration and research work;②The combination of structures (anticlines,domes,faults,SBT)＋favorable rock assemblages (carbonate rocks with a thickness greater than 100 m and overlying clastic rocks or basalt/tuff with a thickness greater than 50 m)＋abnormal patterns of Au-As-Sb-Hg-Tl＋alterations of surrounding rocks (silicification,pyrite mineralization,arsenopyrite mineralization),may indicate the presence of Carlin-type gold deposits at depth;③Basaltic rocks are also excellent host rocks for Carlin-type gold mineralization.The host rocks and host stratigraphy of Carlin-type gold deposits exhibit persity,and almost all rocks and stratigraphy in the region can be considered host rocks and host stratigraphy for Carlin-type gold deposits.However,when it comes to a specific deposit,there are often specific in-situ stratigraphy and ore-bearing rocks.