辽东太子河地区中寒武世古气候特征

Paleoclimate recognition in Middle Cambrian in Taizihe area of eastern Liaoning Province

根据蒸发岩及伴生沉积构造、沉积红层、碳酸盐岩及鲕粒沉积、古生物、古风化壳类型、海绿石等沉积标志,恢复中寒武世古气候。以本溪地区为重点,结合太子河沉积区的特征,将该区中寒武世古气候划分为6个潮湿—干燥炎热气候变化周期,进而确定研究区当时属于温带—亚热带半干旱气候地区。

According to evaporate and associated sedimentary structure,sedimentary red sandstone,carbonate rock and oolitic sedimentary,paleontology,palaeo weathering crust type,glauconite sedimentary indicators,in Huanren area and Benxi area,the authors combined with the features of Taizihe area in Taizi River reaches,the Middle Cambrian ancient climate was divided into six wet-dry and hot climate change cycles,and then determined the area belonged to the temperate and tropical semi-arid climate region.