This paper presents the results of preliminary researches on types, origin and thermal maturation anomalies of organic materials in the largest paleokarst uranium deposit of China.

• 华南某层控铀矿床中有机质可分为原生沉积型、热液变质型和运移型三种类型,其母质类型为腐泥-腐殖型,主要来源于海相微体生物、藻类及少量源于陆相高等植物。