豫西济源地区早三叠世和尚沟组湖相遗迹化石及遗迹组构

被引:21
作者
胡斌
杨文涛
宋慧波
王敏
钟明洋
机构
[1] 河南理工大学资源环境学院河南省生物遗迹与成矿过程重点实验室
关键词
济源; 三叠纪; 湖泊沉积环境; 遗迹化石; 和尚沟组;
D O I
10.14027/j.cnki.cjxb.2009.04.001
中图分类号
Q911.28 [遗迹化石];
学科分类号
摘要
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。
引用
收藏
页码:573 / 582
页数:10
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