安徽宁国胡乐奥陶系再研究  

RESTUDYING THE ORDOVICIAN SYSTEM IN HULE,NINGGUO,ANHUI

作　　者：宫维莉 齐敦伦[2] 毕治国[2] 姜立富[3] 

机构地区：[1]安徽古生物化石博物馆,安徽合肥230001 [2]安徽省地质矿产勘查局327地质队,安徽合肥230011 [3]安徽省地质调查院,安徽合肥230001

出　　处：《安徽地质》2010年第2期85-89,共5页Geology of Anhui

摘　　要：宁国胡乐地层区划属扬子地层区江南地层分区。区内奥陶系分布广,出露全,剖面完整且层序清楚,化石丰富,在国内及大区域内均具典型性和代表性。本区奥陶系自下而上为谭家桥组、宁国组、胡乐组、砚瓦山组、黄泥岗组、新岭组,与下伏晚寒武世至早奥陶世西阳山组、上覆晚奥陶世至早志留世霞乡组及系内各组间均为连续沉积整合接触。在胡乐梅树下发现原砚瓦山组下部地层,在胡乐将军岭首次发现宁国组浊流沉积及其鲍玛序列。The Hule stratigraphy,Ningguo that belongs to the Jiangnan Division of the Yangtze Stratigraphy is an area where the Ordovician system is widespread and outcropped completely,cross section is intact and sequence clear,and fossils are abundant,being typical and representative both domestically and in broader range.The Ordovician system in this area that is divided into from bottom to top the Tanjiaqiao Formation,Ningguo Formation,Hule Formation,Yanwashan Formation,Huangnigang Formation and Xinling Formation,is in conformity both with the underlying late Cambrian to early Ordovician Xiyangshan Formation and with the overlying late Ordovician to early Silurian Xiaxiang Formation,furthermore,the formations in the system are also continuously deposited and in conformity with one another.The lower stage of the former Yanwashan Formation was found at Meishuxia,Hule,and the turbidity current deposit of Ningguo Formation and its Bauma Sequence were firstly discovered at Jiangjunling,Hule.

关 键 词：再研究 奥陶系 宁国胡乐 

分 类 号：P535[天文地球—古生物学与地层学]