全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

广西来宾中上二叠统硅质岩海底热液成因的地球化学证据

, PP. 725-737

Keywords: 硅质岩,地球化学,海底热液,峨眉山玄武岩

Full-Text   Cite this paper   Add to My Lib

Abstract:

?广西来宾中上二叠统(茅口组和吴家坪组)硅质岩可按岩性分为两类,第一类为钙质硅岩,主要发育在茅口组,第二类为硅岩,主要发育在吴家坪组.地球化学分析表明,这两类硅质岩具有极低的Al2O3与TiO2含量(分别为0~0.23%和0.001%~0.024%)和∑REE(0.55~9.94ppm),较高Fe2O3/TiO2比值(17~443,平均为111),低Al2O3/(Al2O3+Fe2O3)比值(0~0.26,平均为0.09)且Ce负异常(0.24~0.46,平均为0.35)显著,接近大洋中脊附近硅质岩的平均值0.29,而小于远洋盆地的平均值0.60,表明它们形成于远离陆源物质干扰而受热液作用影响的海盆环境,其硅质主要来源于海底热液.通过讨论本区的地层中硅质含量高低与海底热液活动强弱相应的对应关系,并结合Eu异常和∑REE/Fe比值变化,认为本地区中晚二叠世可能一直存在着热液活动,且吴家坪期比茅口期更为强烈,并推测与峨眉山玄武岩喷发事件有成因联系.

References

[1]  1 Adachi M, Yamamoto K, Sugisaki R. Hydrothermal chert and associated siliceous rocks from the northern Pacific: Their geological significance as indication of ocean ridge activity. Sediment Geol, 1986, 47: 125-148??
[2]  2 Murchey B L, Jones D L. A mid-Permian chert event: Widespread deposition of biogenic siliceous sediments in coastal, island arc and oceanic basins. Palaeogeogr Palaeoclimatol Palaeoecol, 1992, 96: 161-174??
[3]  3 Zhou Y Z, Chown E H, Guha J, et al. Hydrothermal origin of Precambrian bedded chert at Gusui, Guangdong, China: Petrologic and geochemical evidence. Sedimentology, 1994, 41: 605-619??
[4]  4 Shimizu H, Kunimaru T, Shigekaza, et al. Sources and depositional environments of some Permian and Triassic cherts: Significance of Rb-Sr and Sm-Nd isotopic and REE abundance data. J Geol, 2001, 109: 105-125??
[5]  5 Kametaka M, Takebe M, Nagai H, et al. Sedimentary environments of the Middle Permian phosphorite-chert complex from the northeastern Yangtze platform, China; the Gufeng Formation: A continental shelf radiolarian chert. Sediment Geol, 2005, 174: 197-222??
[6]  6 Maliva R G, Knoll A H, Simonson B M. Secular change in the Precambrian silica cycle: Insights from chert petrology. Geol Soc Am Bull, 2005, 117: 835-845??
[7]  8 van den Boorn S H, van Bergen M J, Nijman W, et al. Dual role of seawater and hydrothermal fluids in Early Archean chert formation: Evidence from silicon isotopes. Geology, 2007, 35: 939-942??
[8]  9 Chen D Z, Wang J G, Qing H R, et al. Hydrothermal venting activities in the Early Cambrian, South China: Petrological, geochronological and stable isotopic constraints. Chem Geol, 2009, 258: 168-181??
[9]  10 Thurston D R. Studies on bedded cherts. Contrib Mineral Petrol, 1972, 36: 329-334??
[10]  11 Moore Jr T C. Chert in the Pacific: Biogenic silica and hydrothermal circulation. Palaeogeogr Palaeoclimatol Palaeoecol, 2008, 261: 87-99??
[11]  12 Yamamoto K. Geochemical characteristics and depositional environments of cherts and associated rocks in the Franciscan and Shimanto terranes. Sediment Geol, 1987, 52: 65-108??
[12]  13 周永章. 丹池盆地热水成因的硅质岩的沉积地球化学特征. 沉积学报, 1990, 8: 75-83
[13]  14 刘宝珺, 朱同兴. 安徽中南部下二叠统栖霞组和孤峰组沉积环境及成岩历史. 成都地质学院学报, 1990, 17: 5-12
[14]  15 徐跃通. 广东茂名地区二叠纪层状硅质岩成因地球化学特征及其沉积环境意义. 西安地质学院学报, 1997, 19: 27-33
[15]  16 田云涛, 冯庆来, 李琴. 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. 沉积学报, 2007, 25: 671-677
[16]  17 杨水源, 姚静. 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. 高校地质学报, 2008, 14: 39-48
[17]  18 王忠诚, 吴浩若, 邝国敦. 广西晚古生代硅岩的地球化学及其形成的大地构造环境. 岩石学报, 1995, 11: 449-455
[18]  19 杨玉卿, 冯增昭. 华南下二叠统层状硅岩的形成及意义. 岩石学报, 1997, 13: 111-120
[19]  20 沙庆安, 吴望始, 傅家谟. 黔桂地区二叠系综合研究-兼论含油气性. 北京: 科学出版社, 1990. 15-91
[20]  21 刘新宇, 颜佳新. 华南地区二叠纪栖霞组燧石结核成因研究及其地质意义. 沉积学报, 2007, 25: 730-736
[21]  22 夏邦栋, 钟立荣, 方中, 等. 下扬子区早二叠世孤峰组层状硅质岩成因. 地质学报, 1995, 69: 125-138
[22]  23 杨海生, 周永章, 杨志军, 等. 湖南二叠系层状硅质岩的地球化学特征. 矿产与地质, 2003, 17: 622-626
[23]  24 周永章, 何俊国, 杨志军, 等. 华南热水沉积硅质岩建造及成矿效应. 地学前缘, 2004, 11: 373-377
[24]  25 金玉玕, 沈树忠, Henderson C M, 等. 瓜德鲁普统(Guadalupian)-乐平统(Lopingian)全球界线层型剖面和点(GSSP). 地层学杂志, 2007, 31: 1-13
[25]  26 Jin Y G, Shen S Z, Henderson C M, et al. The Global Stratotype Section and Point (GSSP) for the boundary between the Capitanian and Wuchiapingian Stage (Permian). Episodes, 2006, 29: 253-262
[26]  27 Mei S L, Jin Y G, Wardlaw B R. Conodont succession of the Guadalupian-Lopingian boundary strata in Laibin of Guangxi, China and West Texas, USA. Palaeoworld, 1998, 9: 53-76
[27]  28 梅仕龙, 史晓颖, 陈学方, 等. 黔南桂中二叠系Cisuralian统和Guadalupian统层序地层及其与牙形石演化的关系. 地球科学, 1999, 24: 21-31
[28]  29 金玉玕. 二叠系乐平统底界的牙形化石定义. 微体古生物学报, 2000, 17: 18-29
[29]  30 Shen S Z, Wang Y, Henderson C M. Biostratigraphy and lithofacies of the Permian System in the Laibin-Heshan area of Guangxi, South China. Palaeoworld, 2007, 16: 120-139??
[30]  31 Wignall P B, Védrine S, Bond D P G, et al. Facies analysis and sea-level change at the Guadalupian-Lopingian Global Stratotype (Laibin, South China), and its bearing on the end-Guadalupian mass extinction. J Geol Soc London, 2009, 166: 655-666??
[31]  32 邱振, 王清晨. 广西来宾铁桥剖面中上二叠统沉积微相. 沉积学报, 2010, 28: 1020-1036
[32]  33 Wang W, Cao C, Wang W. The carbon isotope excursion on GSSP candidate section of Lopingian-Guadalupian boundary. Earth Planet Sci Lett, 2004, 220: 57-67??
[33]  34 Kaiho K, Chen Z Q, Ohashi T, et al. A negative carbon isotope anomaly associated with the earliest Lopingian (Late Permian) mass extinction. Palaeogeogr Palaeoclimatol Palaeoecol, 2005, 223: 172-180??
[34]  35 杨振宇, 沈渭洲, 郑连弟. 广西来宾蓬莱滩二叠纪瓜德鲁普统-乐平统界线剖面元素和同位素地球化学研究及地质意义. 地质学报, 2009, 83: 1-15
[35]  36 沈尔卜, 胡超涌, 马仲武, 等. 广西来宾铁桥剖面二叠系生物地球化学信号的解读. 古地理学报, 2010, 12: 194-201
[36]  37 曾云孚, 刘文均, 陈洪德, 等. 华南右江复合盆地的沉积构造演化. 地质学报, 1995, 69: 113-124
[37]  38 王清晨, 蔡立国. 中国南方显生宙大地构造演化简史. 地质学报, 2007, 81: 1025-1040
[38]  7 Chen D Z, Qing H, Yan X, et al. Hydrothermal venting and basin evolution (Devonian, South China): Constraints from rare earth element geochemistry of chert. Sediment Geol, 2006, 183: 203-216??
[39]  39 王清晨. 浅议华南陆块群的沉积大地构造学问题. 沉积学报, 2009, 27: 811-817
[40]  40 Liu J M, Ye J, Ying H L, et al. Sediment-hosted micro-disseminated gold mineralization constrained by basin paleo-topographic highs in the Youjiang basin, South China. J Asian Earth Sci, 2002, 20: 517-533??
[41]  41 Chung S L, Jahn B M. Plume-lithosphere interaction in generation of the Emeishan flood basalts at the Permian-Triassic boundary. Geology, 1995, 23: 889-892??
[42]  42 Xu Y, Chung S L, Jahn B, et al. Petrologic and geochemical constraints on the petrogenesis of Permian-Triassic Emeishan flood basalts in southwestern China. Lithos, 2001, 58: 145-168??
[43]  43 He B, Xu Y G, Chung S L, et al. Sedimentary evidence for a rapid, kilometer-scale crustal doming prior to the eruption of the Emeishan flood basalts. Earth Planet Sci Lett, 2003, 213: 391-405??
[44]  44 吴浩若, 邝国敦, 王忠诚. 桂西晚古生代基性岩的再认识及其大地构造意义. 地质科学, 1993, 26: 288-289
[45]  45 王忠诚, 吴浩若, 邝国敦. 桂西晚古生代海相玄武岩的特征及其形成环境. 岩石学报, 1997, 13: 260-265
[46]  46 Fan W, Zhang C, Wang Y, et al. Geochronology and geochemistry of Permian basalts in western Guangxi Province, Southwest China: Evidence for plume-lithosphere interaction. Lithos, 2008, 102: 218-236??
[47]  47 Sholkovitz R E. Rare earth elements of the North Atlantic Ocean, Amazon Delta, and East China Sea: Reinterpretation of terrigenous input patterns to the ocean. Am J Sci, 1988, 288: 236-281??
[48]  48 Taylor S R, McClennan S M. The Continental Crustal: Its Composition and Evolution. Oxford: Blackwell, 1985. 1-312
[49]  49 Wang Y J, Yang Q, Cheng Y N, et al. Lopingian (Upper Permian) radiolarian biostratigraphy of South China. Palaeoworld, 2006, 15: 31-53??
[50]  50 Shang Q, Caridroit M, Wang Y. Radiolarians from the uppermost Permian Changshing of southern Guangxi. Acta Micropalaeont Sin, 2001, 18: 229-240
[51]  51 Geeslin J H, Chafetz H S. Ordovician Aleman ribbon cherts: An example of silicification prior to carbonate lithification. J Sediment Petrol, 1982, 52: 1283-1293
[52]  52 Bruechner H K, Snyder W S, Boudreau M. Diagenetic controls on the structural evolution of siliceous sediments in the Golconda Allochthon, Nevada, U.S.A. J Struct Geol, 1987, 9: 403-417??
[53]  53 Murray R W, Buchholtz ten Brink M R, Gerlach D C, et al. Rare earth, major, and trace element composition of Monterey and DSDP chert and associated host sediment: Assessing the influence of chemical fractionation during diagenesis. Geochim Cosmochim Acta, 1992, 56: 2657-2671??
[54]  54 Murray R W, Jones D L, Buchholtz ten Brink M R. Diagenetic formation of bedded chert: Evidence from chemistry of the chert-shale couplet. Geology, 1992, 20: 271-274??
[55]  55 Murray R W. Chemical criteria to identify the depositional environment of chert: General principles and applications. Sediment Geol, 1994, 90: 213-232??
[56]  56 Murray R W, Buchholtz ten Brink M R, Jones D L, et al. Rare earth elements as indicators of different marine depositional environments in chert and shale. Geology, 1990, 18: 268-271??
[57]  57 Murray R W, Buchholtz ten Brink M R, Gerlach D C, et al. Rare earth, major, and trace elements in chert from the Franciscan complex and Monterey group, Californian: Assessing REE sources to fine-grained marine sediments. Geochim Cosmochim Acta, 1991, 55: 1875-1895??
[58]  58 Bostr?m K, Peterson M N A. The origin of aluminum-poor ferromanganoan sediments in areas of high heat-flow on the East Pacific Rise. Mar Geol, 1969, 7: 427-447??
[59]  59 Beauchamp B, Boud A. Growth and demise of Permian biogenic chert along northwest Pangea: Evidence for end-Permian collapse of thermohaline circulation. Palaeogeogr Palaeoclimatol Palaeoecol, 2002, 184: 37-63??
[60]  60 Peng J, Yi H S, Xia W J. Geochemical indication of Sinian bedded siliceous rocks in the Hunan-Guizhou-Guangxi area and their environmental significance. Acta Geol Sin, 2000, 74: 46-53
[61]  61 Turekian K K, Wedepohl K H. Distribution of the elements in some major units of the earth’s crust. Bull Geol Soc Am, 1961, 72: 175-192??
[62]  62 Michard A. Rare earth element systematics in hydrothermal fluids. Geochim Cosmochim Acta, 1989, 53: 745-750??
[63]  63 German C R, Klinkhamaer G P, Edmond J M, et al. Hydrothermal scavenging of rare earth elements in the ocean. Nature, 1990, 345: 516-518??
[64]  64 Ruhlin D E, Owen R M. The rare earth element geochemistry of hydrothermal sediments from the East Pacific Rise: Examination of a seawater scavenging mechanism. Geochim Cosmochim Acta, 1986, 50: 393-400??
[65]  65 Olivarez A M, Owen R M. REE/Fe variations in hydrothermal sediments: Implication for REE content of seawater. Geochim Cosmochim Acta, 1989, 53: 757-762??
[66]  68 Zhou M F, Zhao J H, Qi L, et al. Zircon U-Pb geochronology and elemental and Sr-Nd isotope geochemistry of Permian mafic rocks in the Funing area, SW China. Contrib Mineral Petrol, 2006, 151: 1-19??
[67]  66 Chen Z Q, George A D, Yang W R. Effects of Middle-Late Permian sea-level changes and mass extinction on the formation of the Tieqiao skeletal mound in the Laibin area, South China. Aust J Earth Sci, 2009, 56: 745-763??
[68]  67 贵州省地质矿产局. 贵州省区域地质志. 北京: 地质出版社, 1987. 1-258

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133