贺兰山中段寒武系阿不切亥组风暴岩的发现与地质意义
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摘要
首次报道了宁夏贺兰山地区上寒武统阿不切亥组发育的一套典型灰质风暴岩。在该风暴沉积中发现底面侵蚀构造、砾屑叠瓦状构造、放射状组构、生物扰动构造等,为典型的浅水风暴岩。该组下段发育鲕粒灰岩、砾屑灰岩以及泥质条带灰岩等;中段鲕粒明显减少,变为含砾屑、藻屑灰岩,泥质条带灰岩;上段出现白云质灰岩,表明为潮下浅滩沉积环境。该风暴岩的发现对重建宁夏贺兰山地区中晚寒武世岩相古地理及等时区域地层对比具有重要意义。
A suite of typical storm deposition has been discovered for the first time in Helanshan area of Ningxia,which was developed in the middle and lower parts of upper Cambrian.Bottomerosion texture,bio-disturbed texture,imbricate-boulder texture and radial fabric can be found in these storm sediments,indicating a typical shallow-water storm deposition.The lower part of this formation consists of oolitic limestone,bamboo-like limestone and argillaceous banded limestone.The oolite shows an evident decline in the middle part,which mainly consists of calcirudite,algal limestone and argillaceous banded limestone.Dolomite lime appears in the top part of this formation,indicating a shallow subtidal sedimentary environment.The discovery of storm rock has a great significance for the reconstruction of middle and late Cambrian paleogeography and the comparison of regional strata in Helanshan area of Ningxia.
A suite of typical storm deposition has been discovered for the first time in Helanshan area of Ningxia,which was developed in the middle and lower parts of upper Cambrian.Bottomerosion texture,bio-disturbed texture,imbricate-boulder texture and radial fabric can be found in these storm sediments,indicating a typical shallow-water storm deposition.The lower part of this formation consists of oolitic limestone,bamboo-like limestone and argillaceous banded limestone.The oolite shows an evident decline in the middle part,which mainly consists of calcirudite,algal limestone and argillaceous banded limestone.Dolomite lime appears in the top part of this formation,indicating a shallow subtidal sedimentary environment.The discovery of storm rock has a great significance for the reconstruction of middle and late Cambrian paleogeography and the comparison of regional strata in Helanshan area of Ningxia.
引文
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杜远生,韩欣.滇中中元古代昆阳群因民组碎屑风暴岩及其意义[J].沉积学报,2000,18(02):259-262.DU Yuansheng,HAN Xin.Clastic Tempestite and Its Significance in Yinmin Formation,Kunyang Group(Mesoproterozoic)in Central Yunnan Province[J].Acta Sedimentologica Sinica,2000,18(02):259-262.
杜远生,周道华,龚淑云,等.甘肃靖远-景泰泥盆系湖相风暴岩及其古地理意义[J].矿物岩石,2001,21(03):69-73.DU Yuansheng,ZHOU Daohua,GONG Shuyun,et al.Tempesitite and Its Palaeogeo Graphical Significance of Devonian in JingYuan and JingTai Counties,GanSu Province[J].Journal of Mineralogy and Petrology,2001,21(03):69-73.
方少仙,侯方浩,杨西燕,等.鄂尔多斯盆地内部中二叠统石盒子组盒8下亚段砂岩中的风暴岩[J].沉积学报,2011,29(01):23-30.FANG Shaoxian,HOU Fanghao,YANG Xiyan,et al.Tempesitites in Lower Submember of Member 8of Shihezi Formation(Middle Permain)in Ordos Basin[J].Acta Sedimentologica Sinica,2011,29(01):23-30.
冯乔,田方正,邹开真,等.柴达木盆地大煤沟地区多泉山组风暴沉积及其意义[J].新疆石油地质,2017,38(06):701-706.FENG Qiao,TIAN Fangzheng,ZOU Kaizhen,et al.Storm Deposit and Its Significance of Duoquanshan Formation in Dameigou Area,Qaidam Basin[J].Xinjiang Petoleum Geology,2017,38(06):701-706.
黄乐清,刘伟.湘西北龙山地区下奥陶统桐梓组潮坪风暴岩的发现及其意义[J].沉积学报,2016,34(05):830-841.HUANG Leqing,LIU Wei.Characteristics of Tempestite of Lower Ordovician Tongzi Formation,in the Longshan Area,Northwestern Hunan and Its Geological Significance[J].Acta Sedimentologica Sinica,2016,34(05):830-841.
何镜宇,孟祥化.沉积岩和沉积相模式及建造[M].北京:地质出版社,1987.HE Jingyu,MENG Xianghua.Sedimentary Rocks and Sedimentary Facies Model and Buildup[M].Beijing:Geological Publishing House,1987.
霍进杰,祁明霞,任军民,等.准噶尔盆地石西凸起白垩系呼图壁河组一段风暴岩[J].新疆地质,2014,32(02):168-171.HUO Jinjie,QI Mingxia,REN Junmin,et al.Tempestite in No.1Section of Cretaceous Hutubi River Formation from Shixi Bulge in Junggar Basin[J].Xinjiang Geology,2014,32(02):168-171.
孔庆莹,程日辉,王璞珺,等.新疆库鲁克塔格地区寒武系莫合尔山组风暴岩特征及其对海平面变化的响应[J].新疆地质,2006,24(04):377-380+480.KONG Qingying,CHENG Rihui,WANG Pujun,et al.Characterristics of Tempestite in the Moheershan Formation and Sea-level Changes in Kuruktag,Xinjiang[J].Xinjiang Geology,2006,24(04):377-380+480.
吝文,姜在兴,向树安,等.鄂尔多斯盆地大牛地气田下二叠统下石盒子组盒2及盒3段风暴岩研究[J].古地理学报,2008,10(02):167-174.LIN Wen,JIANG Zaixing,XIANG Shu'an,et al.Researches on Tempestites of the Member 2and Member 3of Lower Permian Xiashihezi Formation in DaniudiGas Field,Ordos Basin[J].Journal of Palaeogeography,2008,10(02):167-174.
刘宝珺,张继庆,许效松.四川兴文四龙下二叠统碳酸盐风暴岩[J].地质学报,1986(01):55-67+121-122.LIU Baojun,ZHANG Jiqing,XU Xiaosong.On the Calcareous Tempesities in the Lower Permian of Silong,Xingwen,Sichuan[J].Acta Geologica Sinica,1986(01):55-67+121-122.
孟祥化,乔秀夫,葛铭,等.华北古浅海碳酸盐风暴沉积和丁家滩模式[J].沉积学报,1986(02):1-18+130-133+142.MENG Xianghua,QIAO Xiufu,GE Ming,et al.Study on Ancient Shallow Sea Carbonate Strom Deposits(Tempesite)in North China and Dingjiatan Model of Facies and Sequence[J].Acta Sedimentologica Sinica,1986(02):1-18+130-133+142.
马瑞申,张良,杜远生,等.豫北地区寒武系风暴岩沉积特征及其地质意义[J].地质科技情报,2011,30(04):15-20.MA Ruishen,ZHANG Liang,DU Yuansheng,et al.Sedimentary Characteristics and Its Geological Implications of Cambrian Tempestite in Northern Henan Province[J].Geological Science and Technology Information,2011,30(04):15-20.
宋金民,杨迪,李朋威,等.中国碳酸盐风暴岩发育特征及其地质意义[J].现代地质,2012,26(03):589-600.SONG Jinmin,YANG Di,LI Pengwei,et al.Development Characteristics and Geological Significance of Carbonate Tempestites in China[J].Geoscience,2012,26(03):589-600.
王家豪,王华,曾劲彪,等.山东省中部上寒武统碳酸盐风暴沉积的综合模式[J].地球科学,2017,42(01):68-77.WANG Jiahao,WANG Hua,ZENG Jinbiao,et al.Integrative Depositional Model for Carbonate Tempestites in Upper Cambrian,Central Shandong Province[J].Earth Science,2017,42(01):68-77.
杨宝忠,杨坤光,夏文臣.鄂东黄石地区中上寒武统风暴岩的发现及意义[J].地质科技情报,2007,26(03):33-36.YANG Baozhong,YANG Kunguang,XIA Wenchen.Discovery of Middle-Upper Cambrian Tempestites and Its Significance in Huangshi,Eastern Hubei Province[J].Geological Science and Technology Information,2007,26(03):33-36.
张瑞林,申少宁,武征.甘肃迭部当多沟擦阔合组的风暴沉积[J].西北地质科学,1988(01):65-73.ZHANG Ruilin,SHEN Shaoning,WU Zheng.First Finding on Storm Sedimentation at the Profile of Dangduogou,Gansu Province[J].Northwest Geoscience,1988(01):65-73.
张继庆,冯纯江,杜德勋,等.四川盆地早二叠世碳酸盐沉积作用及风暴沉积作用[M].重庆:重庆出版社,1986:11-74.ZHANG Jiqing,FENG Chunjiang,DU Dexun,et al.Carbonate Deposition And Storm Deposition in Early Permian in Sichuan Basin[M].Chongqing:Chongqing Publishing House,1986:11-74.
周志强,郑昭昌.贺兰山的寒武系[J].西北地质,1976,13(01):6-20.ZHOU Zhiqiang,ZHENG Shaochang.The Cambrian System of Helan Mountain[J].Northwestern Geology,1976,13(01):6-20.
曾雄伟,杜远生,张哲,等.广西桂林地区中、上泥盆统风暴岩沉积特征及其地质意义[J].地质科技情报,2007,26(06):42-46+65.ZENG Xiongwei,DU Yuansheng,ZHANG Zhe,et al.The Sedimentary Characteristics of the Middle-Upper Devonian Tempestite in Guilin,Guangxi and Its Geological Implications[J].Geological Science and Technology Information,2007,26(06):42-46+65.
周晓峰,刘丽丽,王建国,等.鄂尔多斯盆地延长组开阔浅水湖泊风暴沉积[J].科技导报,2016,34(18):203-208.ZHOU Xiaofeng,LIU Lili,WANG Jianguo,et al.Storm Deposits in Wide and Shallow Lacustrine Environment in Yanchang Formation,Ordos Basin[J].Science&Technology Review,2016,34(18):203-208.
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