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库南一井寒武－奥陶纪时期恰好位于塔里本地块乐部碳酸盐台地边缘与塔东槽盆之间的过渡带上，其沉积作用与沉积特征均不同于两侧的浅水碳酸盐台地和深水槽盆。已鉴别出的沉积作用包括深水原地沉积、深水等深流沉积、深水重力流沉积及重力滑塌沉积。自早寒武世至早奥陶世经历了从深水槽盆至深水斜坡环境的演化，反映了碳酸盐台地边缘不断向盆地推进（加积）的过程。深水缺氧盆地的原地沉积物是较好的生油岩，但已达到过成熟阶段，所换算的镜质体反射率值（Ｒ＿０）为１．７４％～２．０４％，因此，已不具生油能力，但仍可作为较好的气源岩。
During the Cambrian-Cambrian-Ordovician period, the Cambrian-Ordovician period was exactly located on the transition zone between the margin of the carbonate platform and the Tarong basin in the music department of Tarim Basin. Its sedimentation and depositional characteristics are different from those of shallow water on both sides Carbonate terraces and deep basin sinks. The identified sediments include in-situ sedimentation in deep water, deep-stream sedimentation in deep water, gravity sedimentation in deep water, and gravitational slump deposition. The evolution from the Early Cambrian to the Early Ordovician experienced deep-sink troughs and deep-water slopes, reflecting the continual advancement (accretion) of the carbonate platform to the basin. In-situ sediments in the deep-water anoxic basins are good source rocks, but have reached the mature stage. The calculated values of vitrinite reflectance (R_0) range from 1.74% to 2.04%. Therefore, Not oil generating capacity, but can still be used as a better source rock.