Abstract The Permian nodular，striped and lump siliceous rock widely distribute in the upper of Maokou Formation and the whole Wujiaping Formation，intercalate between or in the limestone succession，in the eastern Sichuan Province.The authors research the mechanism of origin and the resource of silicon for the siliceous rock by the lithological and geochemical characteristics from the outcrop，rock thin section，major element，trace element and REE，based on the Guangyuan，Wangcang，Xuanhan and Wuxi Sections.The results indicate that shape of siliceous rock is diversified，distribute heterogeneously，and the lump siliceous rock contain limestone cakes.The silicon of the siliceous rock is primary chalcedony and microcrystal quartz，the chalcedony of calcareous-siliceous intrude into the calcite，and several bioclast silicificated.Major element analysis indicates SiO2 is the main chemical composition(52.79％～99.21％，avg 85.18％)，some major element ratios of Fe/Ti，(Fe+Mn)/Ti，Al/(Al+Fe+Mn)reflect the formation of siliceous rock is associated with the hydrotherm activities.Trace element suggests different content from the crust，some trace element ratios including Co/Ni，Th/U are relatively lower.The REE is lower，Ce is negative anomalies，LREE/HREE is lower and the δEu is relatively high.All these features above suggest that the origin of this siliceous rock we investigate is metasomatosis，the hydrotherm is primary source of silicon，the basalt leaching and upwelling is secondary.Multiple sources following with the carbonate sediments deposit through contemporaneous faults，surface leaching and upwelling，and then metasomatose the carbonate sediments during the diagenesis，finally form the nodular，striped and lump siliceous rock between or in the surrounding rocks.
About author: Zhou Xinping，male，born in 1984， is a Ph.D.candidate in China University of Petroleum(Beijing).Now he is mainly engaged in the study of sedimentology and petroleum geology.E-mail: zhouxp198491@163.com.
Cite this article:
Zhou Xinping,He Youbin,Luo Jinxiong et al. Origin of the Permian nodular，striped and lump siliceous rock in eastern Sichuan Province[J]. JOURNAL OF PALAEOGEOGRAPHY, 2012, 14(2): 143-154.
Zhou Xinping,He Youbin,Luo Jinxiong et al. Origin of the Permian nodular，striped and lump siliceous rock in eastern Sichuan Province[J]. JOPC, 2012, 14(2): 143-154.
陈登辉，巩恩普，梁俊红，等.2010.辽西下白垩统义县组湖相碳酸盐岩中的燧石成因［J］.地质学报，84(8):1208-1214. 陈福，朱笑青.1984.玄武岩古风化淋滤生成条带状铁硅岩建造的模拟实验［J］.地球化学，13（4）：341-349. 冯胜斌，周洪瑞，燕长海，等.2007.东秦岭二郎坪群硅质岩热水沉积地球化学特征及其地质意义［J］.沉积学报，25(2):564-573. 冯增昭，何幼斌，吴胜和，等.1991.中下扬子地区二叠纪岩相古地理［M］.北京:地质出版社，33-41. 冯增昭，杨玉卿，金振奎，等.1997.中国南方二叠纪岩相古地理［M］.山东东营:石油大学出版社，49-50. 高长林，何将启.1999.北大巴山硅质岩的地球化学特征及其成因［J］.地球科学—中国地质大学学报，24(3):246-249. 郭福生，林子瑜，杜杨松，等.2003.一种特殊类型硅质岩的特征与成因研究［J］.地学前缘，10(4):573-581. 胡望水，柴华，鄢菲，等.2009.华北地块中—上元古界上升流岩相类型及相模式［J］.石油天然气学报(江汉石油学院学报)，31(6):32-37. 胡望水，吕炳全，王红罡，等.2004.扬子地块东南陆缘寒武系上升流沉积特征［J］.江汉石油学院学报，26(4):9-12. 康健丽，张招崇，董书云，等.2010.西南天上马达尔地区硅质岩地球化学特征及其沉积环境［J］.岩石矿物学杂志，29(1):79-89. 李凤杰，刘殿鹤，刘琪.2010.四川宣汉地区吴家坪组硅质岩地球化学特征及其成因探讨［J］.天然气地球科学，21(1):62-67. 李红敬，解习农，周炼，等.2009.扬子地区二叠系硅质岩成因分析及沉积环境研究［J］.石油实验地质，31(6):564-569. 林良彪.2008.川东二叠纪层序充填与沉积物分布规律［D］.成都理工大学，32. 林良彪，陈洪德，朱利东.2010.川东茅口组硅质岩地球化学特征及成因［J］.地质学报，84(4):500-507. 刘新宇，颜佳新.2007.华南地区二叠纪栖霞组燧石结核成因研究及其地质意义［J］.沉积学报，25(5):730-734. 刘岫峰.1991.沉积岩实验室研究方法［M］.北京:地质出版社，1-299. 吕炳全，瞿建忠.1989.下扬子地区早二叠世海进和上升流形成的缺氧环境的沉积［J］.科学通报，34(22):1721-1724. 吕炳全，胡望水，王红罡，等.2005.华北地块中—上元古界上升流沉积相及其与油气的关系［J］.海洋地质与第四纪地质，25(3):83-88. 吕炳全，王红罡，胡望水，等.2004.扬子地块东南古生代上升流沉积相及其与烃源岩的关系［J］.海洋地质与第四纪地质，24(4):29-35. 罗进雄，何幼斌.2010.中—上扬子地区二叠系眼球状石灰岩特征及成因研究［J］.地质论评，56(5):629-636. 彭军，夏文杰，伊海生.1995.湘西晚前寒武纪层状硅质岩硅岩同位素组成及成因分析［J］.地质论评，41(1):34-41. 田云涛，冯庆来，李琴.2007.桂西南柳桥地区上二叠统大隆组层状硅质岩成因和沉积环境［J］.沉积学报，25(5):671-677. 王东安.1994.扬子地台晚元古代以来硅岩地球化学特征及其成因［J］.地质科学，29(1):41-54. 王卓卓，陈代钊，汪建国.2007.广西南宁地区泥盆系硅质岩地球化学特征及沉积意义［J］.沉积学报，25(2):239-245. 夏邦栋，钟立荣，方中，等.1995.下扬子区早二叠世孤峰组层状硅质岩成因［J］.地质学报，69(2):125-137. 肖传桃，丁静，胡望水，等.2009.下扬子地区中二叠世上升流相区古生态学研究［J］.沉积学报，27(2):319-325. 徐跃通.1996.浙江西裘晚元古代层状硅质岩热水沉积地球化学标志及其沉积环境意义［J］.地球化学，25(6):600-608. 严贤勤，孟凡巍，袁训来.2006.徐淮地区新元古代九顶山组燧石结核的地球化学特征［J］.微体古生物学报，23(2):295-302. 杨海生，周永章，杨志军，等.2003.热水沉积硅质岩地球化学特征及意义——以华南地区为例［J］.中山大学学报，42(6):111-115. 杨水源，姚静.2008.安徽巢湖平顶山中二叠统孤峰组硅质岩的地球化学特征及成因［J］.高校地质学报，14(1):39-48. 杨玉卿，冯增昭.1997.华南下二叠统层状硅岩的形成及意义［J］.岩石学报，13(1):111-120. 尹国勋.1988.河南焦作地区太原群灰岩中燧石的成因及成岩作用标志［J］.焦作矿业学院学报，(2，3):173-177. 殷鸿福，吴顺宝，杜远生，等.1999.华南是特提斯多岛洋体系的一部分［J］.地球科学，24(1):1-12. 于炳松，陈建强，李兴武，等.2004.塔里木盆地肖尔布拉克剖面下寒武统底部硅质岩微量元素和稀土元素地球化学及沉积背景［J］.沉积学报，22(1):59-66. 周新平，何幼斌，杜红权，等.2009.四川宣汉地区二叠系硅岩地球化学特征及成因研究［J］.古地理学报，11(6):670-680. 周永章.1990.丹池盆地热水沉积硅岩的沉积地球化学特征［J］.沉积学报，8(3):75-83. 周永章，涂光炽，Edward H Chown，等.1994.粤西古水剖面震旦系顶部层状硅岩的热水成因属性:岩石学和地球化学证据［J］.沉积学报，12(3):1-10. Adachi M，Yamamoto K，Sugisaki R， et al.1986.Hydrothermal chert and associated siliceous rocks from the northern Pacific: Their geologic significance indication of ocean ridge activity［J］.Sedimentary Geology，47 \{(1/2)\}:125-148. Bostrom K.1983.Genesis of Ferromanganese Deposits-Diagnostic Criteria for Recent and Old Deposits［M］.New York: Plenum Press，473-483. Bostrom K，Peterson M N A.1969.The origin of Al-Poor ferromaganoan sediments in areas of high heat flow on the East Pacific Rise［J］.Geology，7:427-447. Marching V，Gundlach H，Moller P， et al.1982.Some geochemistry indictors for diserimination between diagenetic and hydrothermal metalliferous sediments［J］.Marine Geology，50(3):241-256. Murray R W.1994.Chemical criteria to identify the depositional environment of chert: General principles and applications［J］.Sedimentary Geology，90:213-232. Rachel A Dolbier，Regina Tempel.2008.Geochemical investigation of Carboniferous cherts in southern Nevada and their relationship to the Antler Orogeny［J］.Geological Society of America，40(1): 38. Richard W Murray.1994.Chemical criteria to identify the depositional environment of chert，general principles and applications［J］.Sedimentary Geology，90(3-4):213-232. Rona P A.1988.Hydrothermal mineralization of ocean ridges［J］.Canadian Mineralogy，26(3):447-465. Yamamoto K.1987.Geochemical characteristics and depositional environment of cherts and associated rocks in the Franciscan and Shimanto terrances［J］.Sedimentary Geology，52:65-108.
