Sedimentary characteristics of the Mesoproterozoic Taizi Formation of Shennongjia Group in northern margin of Yangtze Craton
Xia Xiao-Xu1,2, Kuang Hong-Wei2, Song Tian-Rui2, Liu Yong-Qing2, Peng Nan2, Zhu Zhi-Cai2, Xu Huan2, An Wei2, Wang Neng-Sheng2, Fan Zheng-Xiu2, Wang Yu-Chong1,2
1 China University of Geosciences(Beijing),Beijing 100083; 2 Institute of Geology,Chinese Academy of Geological Sciences,Beijing 100037
Abstract Sedimentary environments of the Mesoproterozoic Taizi Formation of Shennongjia Group in Shengnongjia area, northern margin of Yangtze Craton are all along in debate. In this study,we further constrain the sedimentary environments of the Taizi Formation based on the comprehensive field and laboratory experiments. The lower part of the Taizi Formation consists of gray green silty-fine dolostone. The middle part of the Taizi Formation is composed of gray green,grayish quartz medium-fine sandstones,siltstones and dark grey siltstones,silty mudstones,muddy siltstones rhythms,while its upper part comprises siltstone-mudstone rhythm. Massive beddings and parallel beddings occur in the quartz sandstone,while siltstones and mudstones contain the horizontal and lenticular beddings. The cumulative probability curve of sandstones shows a steep slope,which are made up mainly of jumping components with two or more groups and little suspended components without rolling components. The sedimentary structures and grain size characteristics suggest that the Taizi Formation was formed in the coastal and tidal flat depositional environments. Meanwhile,the vertical sedimentary sequences are represented by the grain size evolution of coarse-fine-coarse-fine,which is combined with that the sedimentary facies from the bottom to the top show littoral facies-carbonate ramp platform facies-lagoon facies-tidal flat lagoon facies succession,constitute a complete transgressive-regressive sedimentary sequence with patterns of progradation-retrogradation-progradation.
Fund:Co-funded by the National Key Research and Development Program of China(No.2016YFC0601001),the National Natural Science Foundation of China(No.41472082),the China Geological Survey Projects(No. DD20160120-01) and the Project of Shennongjia Global Geopark
Corresponding Authors:
Kuang Hong-Wei,born in 1969,is a professor in the Institute of Geology,Chinese Academy of Geological Sciences. She is mainly engaged in sedimentology, stratigraphy and petroleum geology. E-mail: kuanghw@126.com. Peng Nan,born in 1983,is a research assistant in the Institute of Geology,CAGS. He is mainly engaged in sedimentary geology and palaeogeography. E-mail: pengnan19830120@126.com.
About author: Xia Xiao-Xu,born in 1994,is a master candidate of China University of Geosciences(Beijing). She majors in paleontology and stratigraphy. E-mail: xiaxiaoxu922@126.com.
Cite this article:
Xia Xiao-Xu,Kuang Hong-Wei,Song Tian-Rui et al. Sedimentary characteristics of the Mesoproterozoic Taizi Formation of Shennongjia Group in northern margin of Yangtze Craton[J]. JOPC, 2018, 20(4): 563-578.
Xia Xiao-Xu,Kuang Hong-Wei,Song Tian-Rui et al. Sedimentary characteristics of the Mesoproterozoic Taizi Formation of Shennongjia Group in northern margin of Yangtze Craton[J]. JOPC, 2018, 20(4): 563-578.
[1] 冯增昭. 2013. 中国沉积学(第二版). 北京: 石油工业出版社,1-1792. [Feng Z Z.2013. Sedimentology of China(Second Edition). Beijing: Petroleum Industry Press,1-1792] [2] 耿元生,旷红伟,柳永清,杜利林. 2017. 扬子地块西—北缘中元古代地层的划分与对比. 地质学报, 91(10): 2151-2173. [Geng Y S,Kuang H W,Liu Y Q,Du L L.2017. Subdivision and correlation of the Mesoproterozoic stratigraphy in the western and northern margins of Yangtze Block. Acta Geological Sinica, 91(10): 2151-2173] [3] 湖北省地质局区域地质测量队. 1974.1︰20万神农架幅区域地质调查报告. 湖北省地质局, 152. [Regional geological survey team of Hubei Geological Bureau.1974. A Regional Geological Survey of the 1︰20 million Shennongjia. Geological Bureau of Hubei Province, 152] [4] 湖北省地质矿产局. 1990. 湖北省区域地质志. 北京: 地质出版社, 1-711. [Bureau of Geology and Mineral Resources of Hubei Province. 1990. Regional Geological Chronicles of Hubei Province. Beijing: Geological Publishing House, 1-711] [5] 湖北省地质矿产局. 1996. 全国地层多重划分对比研究—湖北省岩石地层. 武汉: 中国地质大学出版社,1-296. [Bureau of Geology and Mineral Resources of Hubei Province. 1996. Multiple Classification and Correlation of the Stratigraphy of China: Stratigraphy(Lithostratic)of Hubei Province. Wuhan: China University of Geosciences Press,1-296] [6] 旷红伟,柳永清,范正秀,彭楠,耿元生,朱志才,许欢,安伟,王能盛,夏晓旭,王玉冲. 2018. 扬子克拉通北缘中元古界神农架群沉积特征. 古地理学报, 20(4): 523-544. [Kuang H W,Liu Y Q,Fan Z X,Peng N,Geng Y S,Zhu Z C,Xu H,An W,Wang N S,Xia X X,Wang Y C.2018. Sedimentary characteristics of the Mesoproterzoic Shennongjia Group in northern margin of Yangtze Craton. Journal of Palaeogeography(Chinese Edition), 20(4): 523-544] [7] 李铨,冷坚. 1987. 神农架上前寒武系. 天津科学技术出版社,1-391. [Li Q,Leng J.1987. Shennongjia Precambrian. Tianjin Science and Technology Press,1-391] [8] 李怀坤,张传林,相振群,陆松年,张健,耿建珍,瞿乐生,王志先. 2013. 扬子克拉通神农架群锆石和斜锆石U-Pb年代学及其构造意义. 岩石学报, 29(2): 673-679. [Li H K,Zhang C L,Xiang Z Q,Lu S N,Zhang J,Geng J S,Qu L S,Wang Z X.2013. Zircon and baddeleyite U-Pb geochronology of the Shennongjia Group in the Yangtze Craton and its tectonic significance. Acta Petrologica Sinica, 29(2): 673-679] [9] 廖纪佳,马思豪,廖明光,肖雪薇,林丹,贺文亮,廖继昊. 2017. 奥陶系宝塔灰岩网纹构造成因研究进展及新发现. 沉积学报, 35(2): 241-252. [Liao J J,Ma S H,Liao M G,Xiao X W,Lin D,He W L,Liao J H.2017. Research of the origin of network structure in the Ordovician Pagoda limestone: Advances and new discovery. Acta Sedimentologica Sinica, 35(2): 241-252] [10] 刘成新,毛新武,魏云许,何仁亮,余建华. 2004. 神农架群地层层序初探. 资源环境与工程, 18(51): 5-16. [Liu C X,Mao X W,Wei Y X,He R L,Yu J H.2004. A preliminary research on stratigraphic sequence of Shennongjia Group. Resources Environment & Engineering, 18(51): 5-16] [11] 梅冥相,杨锋杰,高金汉,孟庆芬. 2008. 中元古代晚期浅海高能沉积环境中的海绿石: 以津蓟县剖面铁岭组为例. 地学前缘, 15(4): 146-158. [Mei M X,Yang F J,Gao J H,Meng Q F.2008. Glauconites formed in the high-energy shallow-marine environment of the late Mesoproterozoic: A case study from Tieling Formation at Jixian section in Tianjin,North China. Earth Science Frontiers, 15(4): 146-158] [12] 彭冰霞,杜远生. 2002. 鄂东地区上泥盆统五通组砂岩沉积相及其古地理特征. 古地理学报, 4(3): 26-32. [Peng B X,Du Y S.2002. Sedimentary facies and palaeogeography of sandstones of Wutong Formation of the late Devonian in eastern Hubei Province. Journal of Palaeogeography(Chinese Edition),26-32] [13] 乔秀夫,宋天锐,李海兵,高林志. 1996. 辽东半岛南部震旦系—下寒武统成因地层: 附大连市金石滩海岸国家级风景区旅游导游. 北京: 科学出版社,1-174. [Qiao X F,Song T R,Li H B,Gao L Z.1996. The Sinian to Lower Cambrian Formation in the Southern Liaodong Peninsula: Tour Guide of National Scenic Area of Jinshitan Beach in Dalian. Beijing: Science Press,1-174] [14] 邱啸飞,凌文黎,柳小明,杨红梅,段瑞春,卢山松. 2013. 扬子克拉通北缘神农架群火山岩锆石Hf同位素特征. 地质通报, 32(9): 1394-1401. [Qiu X F,Ling W L,Liu X M, Yang H M, Duan R C, Lu S S.2014. Zircon Hf isotope of Shennongjia volcanic rocks on the northern margin of the Yangtze craton. Geological Bulletin of China, 32(9): 1394-1401] [15] 宋天锐. 1979. 薄片中计算砂岩“主要结构系数”的新公式: 附砂岩结构成熟度的数学分类. 地质评论, 25(1): 43-47. [Song T R.1979. A new formula for calculating the “main structural coefficient” of sandstone in thin sheets: A mathematical classification of the maturity of sandstone structure. Geological Review, 25(1): 43-47] [16] 宋天锐. 1991. 砂屑岩的综合结构系数与沉积环境分析. 岩石矿物学杂志, 10(3): 210-220. [Song T R.1991. Comprehensive textural coefficient of arenaceous rocks and analysis of sedimentary environments. Acta Petrologica ET Mineralogica, 10(3): 210-220] [17] 汤冬杰,史晓颖,马坚白,史青. 2016. 中元古代海绿石: 前寒武纪海洋浅化变层深度的潜在指示矿物. 地学前缘,219-235. [Tang D J,Shi X Y,Ma J B,Shi Q.2016. Mesoproterozoic glaucony as a potential mineral proxy for shallow chemocline in the Precambrian ocean. Earth Science Frontiers, 23(3): 219-235] [18] 田景春,张翔. 2016. 沉积地球化学. 北京: 地质出版社,64-131. [Tian J C,Zhang X.2016,Sedimentary Geochemistry. Beijing: Geological Publishing House,64-131] [19] 王能盛. 2016. 神农架地区神农架群沉积相研究: 以神农顶剖面为例. 中国地质科学院地质研究所硕士论文: 1-88. [Wang N S.2016. Sedimentary Facies of the Middle Part of Shennongjia Group: An Example from Shennongding Section,Shennongjia Region. Master Dissertation of Institute of Geology,Chinese Academy of Geological Sciences: 1-88] [20] 肖志斌. 2012. 中元古代扬子北缘神龙架地区沉积岩碎屑锆石研究. 西北大学硕士论文: 1-64. [Xiao Z B.2012. Research of the Detrital Zircon from Mesoproterozoic Sedimentary Strata in the North Margin of Yangtze Craton. Master Dissertation of Northwest University: 1-64] [21] 徐大良,刘浩,魏云许,彭练红,邓新. 2016. 扬子北缘神农架地区郑家垭组碎屑锆石年代学及其构造意义. 地质学报, 90(10): 2648-2660. [Xu D L,Liu H,Wei Y X,Peng L H,Deng X.2016. Detrital zircon U-Pb dating of Zhengjiaya Formation from the Shennongjia Area in the Northern Yangtze Block and its tectonic implications. Acta Sedimentologica Sinica, 90(10): 2648-2660] [22] 张琴,梅啸寒,谢寅符,王权鑫,李晨溪,阳孝法,杜会尧,禄佳景. 2016. 不同类型海绿石的发育特征及分类体系探讨. 石油与天然气地质, 37(6): 952-963. [Zhang Q,Mei X H,Xie Y F,Wang Q X,Li C X,Yang X F,Du H Y,Lu J J.2016. Characteristics of different types of glauconite and their classification systems. Oil & Gas Geology, 37(6): 952-963] [23] 朱筱敏. 2008. 沉积岩石学. 石油工业出版社, 1-484. [Zhu X M.2008. Sedimentary Petrology. Petroleum Industry Press, 1-484] [24] 禚喜准,陈骁帅,张林炎,崔建军,熊辉. 2017. 中国南方宝塔组灰岩的岩石学特征及其对“龟裂纹”成因的指示: 以贵州桐梓县红花园乡宝塔组灰岩为例. 地球学报, 38(6): 872-882. [Zhuo X Z,Chen X S,Zhang L Y,Cui J J,Xiong H.2017. Petrology of limestone of Baota Formation in South China and its indication to the genesis of “turtle crack”: A case study of Baota Formation limestone at Honghuayuan Township in Tongzi County,Guizhou Province. Acta Geoscientica Sinica, 38(6): 872-882] [25] Gao L Z,Zhang C H,Liu P J,Ding X Z,Wang Z Q,Zhang Y J.2009. Recognition of Meso-and Neoproterozoic Stratigraphic Framework in North and South China. Acta Geoscientica Sinica, 30(4): 433-446. [26] Qiu X F,Ling W L,Liu X M,Timothy K,Wafa B,Zhang Y H,Gao Y J,Lu S S,Kuang H,Liu C X.2011. Recognition of Grenvillian volcanic suite in the Shennongjia region and its tectonic significance for the South China Craton. Precambrian Research, 191(3): 101-119.
