论文部分内容阅读
豫西济源地区早三叠世和尚沟组滨浅湖沉积中动物遗迹化石共鉴定出9个遗迹属10个遗迹种。包括Areni-colites isp.,Beaconites coronus,Cylindricum isp.,Palaeophycus heberti,Palaeophycus tubularis,Planolites isp.,Psilonich-nus isp.,Scoyenia gracilis,Skolithos linearis和Taenidium barretti等。根据遗迹化石分布特征及沉积环境分析,可识别出三种遗迹组构1)Scoyenia遗迹组构,反映了干旱气候条件下的滨湖沉积环境;2)Planolites—Taenidium遗迹组构,属于湖泊水体逐渐变浅的浅湖沉积环境;3)Psilonichnus遗迹组构,代表了水动力由弱到强的湖泊三角洲沉积环境。
A total of 9 relics belonging to 10 relics were identified from animal trace fossils in the sediments of the Early Triassic and Shangshangou Formation in the Jiyuan area of western Henan. Including Areni-colites isp., Beaconites coronus, Cylindricum isp., Palaeophycus heberti, Palaeophycus tubularis, Planolites isp., Psilonich-nus isp., Scoyenia gracilis, Skolithos linearis and Taenidium barretti. According to the distribution characteristics of trace fossils and the analysis of sedimentary environment, three kinds of relics can be identified: 1) Scoyenia relics, reflecting the lake-lake sedimentary environment under arid climatic conditions; 2) Planolites-Taenidium relics, Shallow shallow lake sedimentary environment; 3) Psilonichnus relic structure, representing hydrodynamic from weak to strong lake delta sedimentary environment.