宫维莉,毕治国,姜立富,齐敦伦

• 1:安徽古生物化石博物馆
• 2:安徽省地质勘探局327地质队
• 3:安徽省地质调查院

摘要(Abstract)：

宁国市胡乐镇鸿门—将军岭段新开公路旁奥陶系宁国组出露完好,通过对该段地层进行连续观察和分析研究,发现存在Ⅱ型不整合面、海侵面、最大海泛面等重要的地层界面,以及鲍玛序列、复理石建造等典型的沉积特征。根据海平面变化、地壳沉降和沉积物补给关系,采用基本层序调查方法,将该区奥陶纪地层层序划分为A、B、C、D、E5个层序。其中只有2个(C、E)为完整层序,其余3个(A、B、D)为不完整层序。研究表明,该地区奥陶系为深水盆地沉积,纵向岩性变化小,多数缺失低水位沉积,反映当时海平面升降变化幅度较小,但节奏性的韵律变化仍较明显。

关键词(KeyWords)： 层序地层;奥陶系;胡乐地区;宁国;安徽

Abstract:

Keywords:

基金项目(Foundation): 安徽省“宁国市胡乐奥陶纪地层剖面及古生物化石遗迹调查与保护”项目成果

作者(Author): 宫维莉,毕治国,姜立富,齐敦伦

DOI: 10.19839/j.cnki.dcxzz.2010.03.013

参考文献(References)：

• [2]安徽省地质局317地质队,1965,1/20万《旌德幅》区域地质矿产调查报告书.
• 安徽省地质矿产局.1997.安徽省岩石地层.武汉:中国地质大学出版社.126—170
• 安徽省地质矿产局区域地质调查队.1982.安徽笔石化石.合肥:安徽科学技术出版社.1—166
• 安徽省地质矿产局区域地质调查队.1988.安徽地层志奥陶系分册.合肥:安徽科学技术出版社.1—234
• 方一亭,边立增,冯洪真,俞剑华,王海峰.1992.皖南、赣北奥陶纪笔石立体标本形成环境的初步研究.古生物学报,31(3):371—373
• 方一亭,冯洪真,俞剑华.1989a.安徽省宁国县胡乐地区的胡乐组.地层学杂志,13(4):275—284
• 方一亭,冯洪真,俞剑华.1989b.安徽省宁国县胡乐司中奥陶世胡乐组的笔石.古生物学报,28(6):693—903
• 方一亭,刘怀宝.1983.安徽省宁国县胡乐地区奥陶纪新厂期笔石动物群新材料.南京大学学报(自然科学版),(3):497—509
• 方一亭,沈渭洲,倪琦生,刘燕,林雨萍.1995.安徽胡乐寒武—奥陶系地层地球化学特征.高校地质学报,1(2):107—112
• 冯洪真,俞剑华,方一亭.1990.皖南胡乐地区中奥陶统胡乐组微量元素的初步研究.南京大学学报(地球科学),2(1):24—33
• 冯洪真,俞剑华,方一亭.1991,运用数值分支学方法对皖南胡乐组双头笔石演化的研究.古生物学报,30(3):377—385
• 李积金.1983.皖南奥陶系的分带、对比及一些重要化石的记述.中国科学院南京地质古生物研究所丛刊,6:133—158
• 李积金.1984.皖南晚奥陶世地层及其与国内外对比.中国科学院南京地质古生物研究所集刊,20:113—144
• 李积金,葛梅钰,陈均远.1982.中国奥陶系的划分及对比——中国奥陶纪地层对比表及说明书,见:中国各纪地层对比表及说明书.北京:科学出版社.55—72
• 穆恩之.1986.许杰教授对笔石的研究.中国地质科学院院报,12:5—15
• 穆恩之,葛梅钰,陈旭,倪寓南,林尧坤.1980.安徽南部奥陶纪地层新观察.地层学杂志,4(2):81—86
• 钱义元,李积金,李蔚秾,江纳言,毕治国,高永修.1964.安徽南部震旦系及下古生界的新认识.中国科学院南京地质古生物研究所集刊,地层文集第1号.北京:科学出版社.21—66
• 许杰.1934.长江下游之笔石.前中央研究院地质研究所专刊,甲种;第4号:1—100
• 严坤元,唐永成.1986.许杰教授对安徽南部奥陶系的研究.中国地质科学院院报,12:21—23
• 俞剑华,方一亭,刘怀宝.1986.安徽省宁国县胡乐地区含笔石地层研究新进展.中国地质科学院院报,12:25—33
• 章森桂,张允白,严惠君.2008.“国际地层表”(2008)简介.地层学杂志,33(1):1—10
• 张文堂.1962.中国的奥陶系全国地层会议学术报告汇编.北京:科学出版社.1—161
• Bureau of Geology and Mineral of Anhui Province.1997.Lithos-tratigraphy of Anhui Province.Wuhan:China University ofGeoscienes Press.126—170
• Fang Yi-ting&Liu Huai-bao.1983.Some new materials of the ear-ly Ordovician(Xinchangian)graptolites from Hule areain Ning-guo,Southern Anhui.Journal of Nanjing University(NaturalSciences),3:497—509
• Fang Yi-ting,Feng Hong-zhen&Yu Jian-hua.1989a.Hule Formation of Hule area,Ningguo County,Anhui Province.Journalof Stratigraphy,13(4):275—284
• Fang Yi-ting,Feng Hong-zhen&Yu Jian-hua.1989b.Graptolitesof Hule Formation,Middle Ordovicianfrom Hule Town,Ning-guo County,Anhui Province.Acta Palaeontologica Sinica,28(6):693—903
• Fang Yi-ting,Bian Li-zeng,Feng Hong-zhen,Yu Jian-hua&WangHai-feng.1992.On forming condition of relieved graptolitesfrom Ordovician in Southern Anhui,Northeastern and North-western Jiangxi.Acta Palaeontologica Sinica,31(3):371—373
• Fang Yi-ting,Shen Wei-zhou,Ni Qi-sheng,Liu Yan&Lin Yu-ping.1995.Geochemical variation across Cambrian-Ordovicianboundary in the Hule section,Anhui Province.GeologcialJournal of Universities,1(2):107—112
• Feng Hong-zhen,Yu Jian-hua&Fang Yi-ting.1990.Pri mary re-search of microelement from Hule Fromation,Middle Ordovi-cianin Hule area,Southern Anhui.Journal of Nanjing Uni-versity(Earth Sciences),2(1):24—33
• Feng Hong-zhen,Yu Jian-hua&Fang Yi-ting.1991.Application ofnumercial cladistics to study on evolution ofDicranograptusinHule Formation of Southern Anhui.Acta Palaeontologica Sini-ca,30(3):377—385
• Institute of Regional Geological Surveying of Anhui Province.1982.Fossil graptolites of Anhui Province.Hefei:Anhui Science&Technology Publishing House.1—166
• Institute of Regional Geological Surveying of Anhui Province.1988.Strata of Anhui Province:Ordovician Division.Hefei:AnhuiScience&Technology Publishing House.1—234
• Li Ji-jin,Ge Mei-yu&Chen Jun-yuan.1982.Ordovician classifica-tion and correlation of China:correlation table and introdutionbook of Ordovician of China.In:Stratigraphic correlationtablesandintrodution books of every periodin China.Beijing:SciencePress.55—72
• Li Ji-jin.1983.Zonation and correlation of Ordovician rocks inSouthern Anhui with a note on some i mportant graptolites.Bulletin of Nanjing Institute of Geology and Palaeontology,Academia Sinica,6:133—158
• Li Ji-jin.1984.Lower Ordovician strata of Southern Anhui and Cor-relation with the same strata at home and abroad.Memoirs ofNanjing Institute of Geology and Palaeontology,20:113—144
• Mu En-zhi.1986.Prof.Xu Jie's research work on graphtolithina.Bulletin of the Chinese Academy of Geological Sciences,12:5—15
• Mu En-zhi,Ge Mei-yu,Chen Xu,Ni Yu-nan&Lin Yao-kun.1980.New observation of the Ordovician strata in South An-hui.Journal of Stratigraphy,4(2):81—86
• Qian Yi-yuan,Li Ji-jin,Li Wei-nong,Jiang Na-yan,Bi Zhi-guo&Gao Yong-xiu.1964.Newknowledges onthe Sinian and LowerPalaeozoic stratigraphy of Southern Anhui.Memoirs of Nan-jing Institute of Geology and Palaeontology,Collective paperson Stratigraphy1:21—66
• Xu Jie.1934.Fossil graptolites of the lower Yangtze River.SpecialIssue of Geology Institute of Former Academia Sinica(SeriesA),4:1—100
• Yan Kun-yuan&Tang Yong-cheng.1986.Professor Xu Jie and hisstudy of Ordovician systemin Southern Anhui.Bulletin of theChinese Academy of Geological Sciences,12:21—23
• Yu Jian-hua,Fang Yi-ting&Liu Huai-bao.1986.Newadvances inthe Ordovician graptolite—bearing strata fromthe Hule area inNingguo County,Southern Anhui.Bulletin of the Chinese A-cademy of Geological Sciences,12:21—23
• Zhang Sen-gui,Zhang Yun-bai&Yan Hui-jun.2008.Abrief intro-duction to the“International Stratigraphic Chart”(2008).Journal of Stratigraphy,33(1):1—10
• Zhang Wen-tang.1962.Ordovician System of China.Beijing:Sci-ence Press.1—161