浙江桐庐阳新统栖霞组的■类化石及多重地层划分  

FUSULINIDS AND STRATIGRAPHIC SUBDIVISION OF THE QIXIA FORMATION OF THE YANGXIN SERIES IN THE TONGLU AREA,ZHEJIANG

作　　者：颜铁增 朱朝晖 卢成忠 许兴苗 

机构地区：[1]浙江省地质调查院,浙江杭州311203

出　　处：《地层学杂志》2007年第1期79-89,共11页Journal of Stratigraphy

基　　金：中国地质调查局1/25万<金华市幅>国土资源大调查项目(编号200113000032)资助

摘　　要：浙江桐庐栖霞组可划分为二个带:上部为Cancelli naneoschwagerinoides-Verbeekina grabaui带,归属祥播阶;下部为Misellinaclaudiae带,归属罗甸阶。栖霞组被划分出3个正层序和6个四级层序。高频旋回层研究表明:栖霞组主要的成岩环境有台地相、浅海陆棚相和盆地相三种类型,从下至上总体反映为台地向盆地的演化环境。The Qixia Formation in the Tonglu area of Zhejiang Province can be divided into two fusulinid biozones.the upper Cancellina neoschwagerinoides-Verbeekina grabaui zone of the Xiangbo Stage and the lower Misellina claudiae zone of the Luodian Stage. The Qixia Formation includes three 3rd-order sequences and six 4th-order sequences. On the basis of sedimentary cycles of the Qixia Formation ,three depositional facies can be recognized.platform facies, shallow sea continental shelf facies and basinal facies. The Qixia Formation records a deepening upward sequence,shifting from platform to basin facies.

关 键 词：[竹蜓]化石带 阳新统 二叠系 栖霞组 多重地层划分 桐庐 浙江 

分 类 号：P534.46[天文地球—古生物学与地层学]