贵州独山中深盆统不整合的发现及其意义

Discovery of unconformity in the Middle Devonian of Dushan, Guizhou and its significance

黔南中泥盆统独山组鸡窝寨段底部存在的古风化壳层和其之上的底砾岩，为一次地亮相对上升、海平面下降的上升运动（独山抬升），表明独山组内存在着沉积间断。建议将此古风化壳之上的原＂独山组鸡窝寨段＂修订为＂鸡窝寨组＂，代表中泥盆世晚期较独山组更大海侵的以碳酸盐岩为主的沉积。

The ancient crust of weathering and the overlying basal conglomerate at the base of the Jiwozhai Member of the Middle Devonian Dushan Formation in South Guizhou were formed during the uplift movement (Dushan uplifting) of relative elevation of earth's crust and fall of sea level, and indicate that an interruption of sedimentation exists in the Dushan Formation. The former'Jiwozhai Member of the Dushan Formation' above the crust of weathering is replaced by the 'Jiwozhai Formation' in this paper, representing the sediments consisting chiefly of carbonate rocks during the late Middle Devonian transgression wider than the Dushan Formation.