晚中生代Tulukuev破火山口铀矿床位于中亚内陆构造区,亚碱性和酸性火山作用在该区广泛分布。破火山口内,低温、中酸性交代蚀变作用广泛发育。矿前蚀变类型及其分带的分布受破火山口内部断块构造控制。蚀变云母和碳酸盐中的O、H、C同位素研究结果表明了热液组分中岩浆流体的从属作用。 Late Mesozoic Tulukuev caldera uranium deposits are located in the Central Asian continental tectonic zone, and sub-alkaline and acidic volcanic activities are widely distributed in this area. Within the caldera, low temperature, moderately acidic metasomatic alteration widely developed. The types of pre-alteration and their zonation distribution are controlled by the fault block structure in the caldera. O, H, C isotopic studies of altered micas and carbonates show the subordinate role of magmatic fluids in hydrothermal components.