CAJ | 학술논문

南秦岭早古生代盆地中心在紫阳安康一带。盆地沉积充填可划为两个Ⅱ级层序和五个Ⅲ级层序，在层序Ⅰ和层序Ⅳ黑色岩系中，重晶石、毒重石产于海侵体系域与高水位体系域转换界面附近。盆地演化包括初始沉降期、过渡沉降期、稳定沉降期、强烈沉降期、盆地萎缩期五个阶段。
남진령조고생대분지중심재자양안강일대。분지침적충전가화위량개Ⅱ급층서화오개Ⅲ급층서，재층서Ⅰ화층서Ⅳ흑색암계중，중정석、독중석산우해침체계역여고수위체계역전환계면부근。분지연화포괄초시침강기、과도침강기、은정침강기、강렬침강기、분지위축기오개계단。
The early Paleozoic basin center of the South Qinling is located in the area of Ziyang and Ankang. The sedimentary basin can be classified into two sequences at Ⅱ-class and five at Ⅲ-class.In black rock series existing in sequence Ⅰ and sequence Ⅳ, barite and witherite occur near by the conversion interface between the transgression arid the hlghstand systems. the basin evotutlon expe-rienced five stages from initial subsidence ( ∈ 1 including some Z2) to transitional (late ∈1 - ∈ 3) · stable ( O1 - early O3 ) - intensive ( late O3 - early S1) subsidence and atrophy period ( late S1 - S3 ) of the basin.