高级搜索

留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码

重庆石柱二叠纪栖霞组地球化学特征及其环境意义

田洋,  赵小明,  王令占,  涂兵,  谢国刚,  曾波夫

downloadPDF
文章导航 > 沉积学报  > 2014 >  32(6): 1035-1045
田洋, 赵小明, 王令占, 涂兵, 谢国刚, 曾波夫. 重庆石柱二叠纪栖霞组地球化学特征及其环境意义[J]. 沉积学报, 2014, 32(6): 1035-1045.
引用本文: 田洋, 赵小明, 王令占, 涂兵, 谢国刚, 曾波夫. 重庆石柱二叠纪栖霞组地球化学特征及其环境意义[J]. 沉积学报, 2014, 32(6): 1035-1045.
shu
TIAN Yang, ZHAO Xiao-ming, WANG Ling-zhan, TU Bing, XIE Guo-gang, ZENG Bo-fu. Geochemical Characteristics and Its Paleoenvironmental Implication of Permian Qixia Formation in Shizhu, Chongqing[J]. Acta Sedimentologica Sinica, 2014, 32(6): 1035-1045.
Citation: TIAN Yang, ZHAO Xiao-ming, WANG Ling-zhan, TU Bing, XIE Guo-gang, ZENG Bo-fu. Geochemical Characteristics and Its Paleoenvironmental Implication of Permian Qixia Formation in Shizhu, Chongqing[J]. Acta Sedimentologica Sinica, 2014, 32(6): 1035-1045.
shu

重庆石柱二叠纪栖霞组地球化学特征及其环境意义

  • 武汉地质矿产研究所 武汉 430205

基金项目: 国家自然科学基金(批准号:41240016)与中国地质调查局基础地质调查项目(编号:1212010911016,1212011220517)联合资助
详细信息
    作者简介:

    田洋 男 1984年出生 硕士 沉积学 E-mail: 41834572@qq.com

  • 中图分类号: P595;TE121.3+1

Geochemical Characteristics and Its Paleoenvironmental Implication of Permian Qixia Formation in Shizhu, Chongqing

  • Wuhan Institute of Geology and Mineral Resources, Wuhan 430205

    摘要
  • 摘要: 在对重庆市石柱县二叠纪栖霞组地层野外露头沉积特征研究的基础上,结合室内薄片观察,根据碳酸盐岩样品的元素含量、比值及相关性,探讨了栖霞组沉积地球化学特征与古环境意义.用于古环境分析的10件栖霞组样品SiO2、MgO含量低,且两者具有较好的正相关性,Sr含量高,平均为1 751×10-6,Mn/Sr<0.1,Fe/Sr<1,δ18OPDB>-10‰,表明成岩过程中样品几乎不受硅化及白云岩化作用的影响,未发生化学性质上的改变,可作为古环境分析的可靠对象.栖霞组碳酸盐岩CaO含量高,平均为53.81%,接近纯灰岩的理论化学组成,陆源元素Al2O3、TiO2含量很低,平均值分别为0.17%与0.012%,表明其形成于陆源碎屑影响微弱的稳定古海洋环境.古气候指标MgO/CaO比值极低,平均为0.026,古盐度指标100×(MgO/Al2O3)比值高,平均为1 241,古水深判别指标Sr/Ba、1000×(Sr/Ca)比值高,平均值分别为286和4.54,指示了栖霞组碳酸盐岩为潮湿气候下的陆表海(远岸)沉积.古氧相地球化学指标U/Al、V/Al、Mo/Al、Cr/Al、Co/Al、V/(V+Ni)和U/Th特征一致表明栖霞组碳酸盐岩沉积于贫氧—缺氧环境.垂向上,陆源元素∑(Al2O3+TiO2)含量逐渐降低,古水深指标Sr/Ba、1000×(Sr/Ca)比值逐渐增大,表明栖霞组沉积过程中离岸渐远、陆源供给逐步减少、水体持续加深.
    Abstract: Observations from outcrop, thin sections and geochemical analyses of limestone samples collected from Middle Permian Qixia Formation at Jinlingxiang section in Shizhu, Chongqing City, make it possible to reveal characteristics of geochemistry and paleoenvironment. The 10 samples have low contents in SiO2 (<5%), MgO(<2.5%), low ratios of Mn/Sr(<0.1), Fe/Sr(<1), high contents in Sr(average: 1 751×10-6), δ18OPDB(>-10‰), meanwhile, SiO2 are strong positive correlated with MgO, which imply that samples have not experienced intense dolomitization and silicification implying no alteration on the chemical nature during diagenetic processes. Thus, they could be used as reliable objects to reconstruct paleoenvironment. Samples are usually high in CaO (average:53.81%) content, low in Na2O(average: 0.051%), Al2O3(average: 0.17%), TiO2(average: 0.012%)contents, which indicate stable marine paleoenvironment barely with terrigenous input. Low ratios of MgO/CaO(average:0.026), high ratios of 100×(MgO/Al2O3) (average:1241), Sr/Ba(average:286) integrated with 1 000×(Sr/Ca) (average:4.54) hint that Qixia Formation deposited in continental shelf (far shore) under humid climate. Geochemical indices for palaeoredox conditions, for example, U/Al, V/Al, Mo/Al, Cr/Al, Co/Al, V/(V+Ni) and U/Th, conform that the carbonate successions in the study area were accumulated in a dysaerobic-anaerobic environment. Terrestrial elements Σ(Al2O3+TiO2) contents decrease gradually, seawater depth indices: ratios of Sr/Ba and 1 000×(Sr/Ca) increase steadily from bottom to top, which reflect the coast were further away, terrigenous supply reduced gradually and sea level continued rising during deposition.
    • HTML全文
    • 参考文献(35)
  • [1] 刘宝珺,许效松,潘杏南,等. 中国南方古大陆沉积地壳演化与成矿[M]. 北京:科学出版社,1993[Liu Baojun, Xu Xiaosong, Pan Xingnan, et al. Sedimentary Crust Evolution of Paleocontinent and Metallogeny in Southern China [M]. Beijing: Science Press, 1993]
    [2] 刘德镒. 浏阳式菊花石的特征及其地质意义[J]. 岩相古地理,1988,8(3/4):41-50[Liu Deyi. Characteristics and geological significance of Liuyang-type chrysanthemum - stone from Hunan province[J]. Sedimentary Facies and Palaeogeography, 1988, 8(3/4): 41-50]
    [3] 吕炳全,瞿建忠. 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,1989,34(22):1721-1724[Lü Bingquan, Qu Jianzhong. The anoxic sediments related to the Early Permian transgression and upflow environment in the Lower Yangtze area[J]. Chinese Science Bulletin, 1989, 34(22): 1721-1724]
    [4] 吴胜和,冯增昭,何幼斌. 中下扬子地区二叠纪缺氧环境研究[J]. 沉积学报,1994,12(2):29-36[Wu Shenghe, Feng Zengzhao, He Youbin. Study on anoxic environments of Permian in the Middle and Lower Yangtze region[J]. Acta Sedimentologica Sinica, 1994, 12(2): 29-36]
    [5] 颜佳新,方念乔. 湖北省栖霞组沉积环境、沉积旋回及层序地层划分[J]. 地球科学,1994,19(5):620-626[Yan Jiaxin, Fang Nianqiao. Depositional environments, cycles and sequences of Chisia Formation in Hubei province[J]. Earth Science, 1994, 19(5): 620-626]
    [6] 颜佳新,徐四平,李方林. 湖北巴东栖霞组缺氧沉积环境的地球化学特征[J]. 岩相古地理,1998,18(6):27-32[Yan Jiaxin, Xu Siping, Li Fanglin. Geochemistry of the anaerobic sedimentary environments of the Qixia Formation in Badong, Hubei[J]. Sedimentary Facies and Palaeogeography, 1998, 18(6): 27-32]
    [7] 施春华,胡瑞忠,颜佳新. 栖霞组沉积地球化学特征及其环境意义[J]. 矿物岩石地球化学通报,2004,23(2):144-148[Shi Chunhua, Hu Ruizhong, Yan Jiaxin. Sedimentary geochemistry of the Qixia Formation and its environmental implication[J]. Bulletin of Mineralogy, Petrology and Geochemistry, 2004, 23(2): 144-148]
    [8] 施春华,黄秋,颜佳新. 广西来宾栖霞组缺氧沉积环境地球化学特征[J]. 地质地球化学,2001,29(4):35-39[Shi Chunhua, Huang Qiu, Yan Jiaxin. Geochemistry of anaerobic sedimentary environments of the Qixia Formation in Laibin, Guangxi[J].Geology Geochemistry, 2001, 29(4): 35-39]
    [9] 施春华,黄秋,颜佳新. 广西来宾栖霞组缺氧沉积环境的地球化学特征[J]. 沉积与特提斯地质,2001,21(2):72-77[Shi Chunhua, Huang Qiu, Yan Jiaxin. Geochemistry of the anaerobic sedimentary environments of Qixia Formation in Laibin, Guangxi[J]. Sedimentary Geology and Tethyan Geology, 2001, 21(2): 72-77]
    [10] 施春华,胡瑞忠,颜佳新. 华南地区栖霞组沉积地球化学特征研究[J]. 地质科技情报,2004,23(1):33-37[Shi Chunhua, Hu Ruizhong, Yan Jiaxin. Geochemical features of the sedimentation of Qixia Formation in South China[J]. Geological Science and Technology Information, 2004, 23(1): 33-37]
    [11] 马丽芳,《中国地质图集》编委会. 中国地质图集[M]. 北京:地质出版社,2002[Ma Lifang, Editorial Committee of “Geological Atlas of China”. Geological Atlas of China [M]. Beijing: Geological Publishing House, 2002]
    [12] Yan D P, Zhou M F, Song H L,et al. Origin and tectonic significance of a Mesozoic multi-layer over-thrust system within the Yangtze Block (South China) [J]. Tectonophysics, 2003, 361(3/4): 239-254
    [13] 颜佳新,伍明,李方林,等. 湖北省巴东栖霞组沉积成岩作用地球化学特征研究[J]. 沉积学报,1998,16(4):78-83[Yan Jiaxin, Wu Ming, Li Fanglin, et al. Geochemistry of sedimentation and diagenesis in Qixia Formation(Early Permian) of Badong, Hubei province[J]. Acta Sedimentologica Sinica, 1998, 16(4): 78-83]
    [14] Kaufman A J, Jacobsen S B, Knoll A H. The Vendian record of Sr and C isotopic variations in seawater: implications for tectonics and paleoclimate[J]. Earth and Planetary Science Letters, 1993, 120(3/4): 409-430
    [15] Derry L A, Brasier M D, Corfield R M,et al. Sr and C isotopes in Lower Cambrian carbonates from the Siberian craton: a paleoenvironmental record during the‘Cambrian explosion’[J]. Earth and Planetary Science Letters, 1994, 128(3/4): 678-681
    [16] 旷红伟,柳永清,彭楠,等. 辽东大连新元古代臼齿碳酸盐岩地球化学特征及其地质意义[J]. 地学前缘,2011,18(4):25-40[Kuang Hongwei, Liu Yongqing, Peng Nan, et al. Geochemistry of the Neoproterozoic molar-tooth carbonates in Dalian, eastern Liaoning, China, and its geological implications[J]. Earth Science Frontiers, 2011, 18(4): 25-40]
    [17] 李双应,金福全,王道轩. 碳酸盐岩成岩作用的微量元素地球化学特征[J]. 石油实验地质,1995,17(1):55-62[Li Shuangying, Jin Fuquan, Wang Daoxuan. Geochemical characteristics of carbonate rocks diagenesis[J]. Experimental Petroleum Geology, 1995, 17(1): 55-62]
    [18] Land L S, Goreau T F. Submarine lithification of Jamacian reefs[J]. Journal of Sedimentary Research, 1970, 40(1): 457-462
    [19] Kinaman D J J. Interpretation of Sr2+ concentrations in carbonate minerals and rocks[J]. Journal of Sedimentary Petrology, 1969, 39(2): 486-508
    [20] Baker P A, Burns S J. Occurrence and formation of dolomite in organic-rich continental margin sediments[J]. AAPG Bulletin, 1985, 69(11): 1917-1930
    [21] 倪善芹,侯泉林,王安建,等. 碳酸盐岩中锶元素地球化学特征及其指示意义——以北京下古生界碳酸盐岩为例[J]. 地质学报,2010,84(10):1510-1516 [Ni Shanqin, Hou Quanlin, Wang Anjian, et al. Geochemical characteristics of carbonate rocks and its geological implications-Taking the Lower Palaeozoic carbonate rock of Beijing area as an example[J]. Acta Geologica Sinica, 2010, 84(10): 1510-1516]
    [22] 颜佳新,伍明. 显生宙海水成分、碳酸盐沉积和生物演化系统研究进展[J]. 地质科技情报,2006,25(3):1-7 [Yan Jiaxin, Wu Ming. Synchronized oscillations in Phanerozoic chemical composition of seawater, carbonate sedimentation and biotic evolution: progresses and prospects [J]. Geological Science and Technology Information, 2006, 25(3): 1-7]
    [23] Haskin L A, Haskin M A, Frey F A,et al. Relative and absolute terrestrial abundances of the rare earths[C]//Ahrens L H. Origin and distribution of the elements. Oxford: Pergamon, 1968, 1: 889-911
    [24] 王随继,黄杏珍,妥进才,等. 泌阳凹陷核桃园组微量元素演化特征及其古气候意义[J]. 沉积学报,1997,15(1):65-70[Wang Suiji, Huang Xingzhen, Tuo Jincai, et al. Evolutional characteristics and their paleoclimate significance of trace elements in the Hetaoyuan Formation, Biyang depression[J]. Acta Sedimentologica Sinica, 1997, 15(1): 65-70]
    [25] 经雅丽,张克信,林启祥,等. 浙江长兴煤山下三叠统和龙山组、南陵湖组沉积地球化学特征与古环境意义[J]. 地质科技情报,2005,24(1):35-40[Jing Yali, Zhang Kexin, Lin Qixiang, et al. Sedimentary geochemistry characteristics and paleoenvironmental meaning of Helongshan Formation and Nanlinghu Formation in Meishan, Changxing county, Zhejiang province[J]. Geological Science and Technology Information, 2005, 24(1): 35-40]
    [26] 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[J]. 地质学报,2009,83(1):1-15[Yang Zhenyu, Shen Weizhou, Zheng Liandi. Elements and isotopic geochemistry of Guadalupian - Luopingian boundary profile at the Penglaitan section of Laibin, Guangxi province, and its geological implications[J]. Acta Geologica Sinica, 2009, 83(1): 1-15]
    [27] 汪凯明,罗顺社. 燕山地区中元古界高于庄组和杨庄组地球化学特征及环境意义[J]. 矿物岩石地球化学通报,2009,28(4):356-364[Wang Kaiming, Luo Shunshe. Geochemical characteristics and environmental significance of Gaoyuzhuang and Yangzhuang Formations in Yanshan region[J]. Bulletin of Mineralogy, Petrology and Geochemistry, 2009, 28(4): 356-364]
    [28] 汪凯明,罗顺社. 碳酸盐岩地球化学特征与沉积环境判别意义——以冀北坳陷长城系高于庄组为例[J]. 石油与天然气地质,2009,30(3):343-349[Wang Kaiming, Luo Shunshe. Geochemical characters of carbonates and indicative significance of sedimentary environment - An example from the Gaoyuzhuang Formation of the Changcheng System in the northern Hebei depression[J]. Oil & Gas Geology, 2009, 30(3): 343-349]
    [29] Tribovillard N, Algeo T J, Lyons T,et al. Trace metals as paleoredox and paleoproductivity proxies: An update[J]. Chemical Geology, 2006, 232(1/2): 12-32
    [30] Riquier L, Tribovillard N, Averbuch O,et al. The Late Frasnian Kellwasser horizons of the Harz Mountains (Germany): Two oxygen-deficient periods resulting from different mechanisms[J]. Chemical Geology, 2006, 233(1/2): 137-155
    [31] Wei H Y, Chen D Z, Wang J G,et al. Organic accumulation in the lower Chihsia Formation (Middle Permian) of South China: Constraints from pyrite morphology and multiple geochemical proxies[J]. Palaeogeography, Palaeoclimatology, Palaeoecology, 2012, 353-355: 73-86
    [32] Gromet L P, Dymek R F, Haskin L A,et al. The "North American shale composite": its compilation, major and trace element characteristics[J]. Geochimica et Cosmochimica Acta, 1984, 48: 2469-2482
    [33] Jones B, Manning D A C. Comparison of geochemical indices used for the interpretation of palaeoredox conditions in ancient mudstones[J]. Chemical Geology, 1994, 111(1/2/3/4): 111-129
    [34] Hatch J R, Leventhal J S. Relationship between inferred redox potential of the depositional environment and geochemistry of the Upper Pennsylvanian (Missourian) stark shale Member of the Dennis limestone, Wabaunsee County, Kansas, U.S.A.[J]. Chemical Geology, 1992, 99(1/2/3): 65-82
    [35] Thomas J A, Maynard J B. Trace-element behavior and redox facies in core shales of Upper Pennsylvanian Kansas-type cyclothems[J]. Chemical Geology, 2004, 206(3/4): 289-318
    • 相关文章
  • [1] 王兴, 田景春, 林小兵, 陈威振, 易定鑫.  渝东地区五峰组—龙马溪组沉积环境及有机质主控因素分析 . 沉积学报, 2024, 42(1): 309-323. doi: 10.14027/j.issn.1000-0550.2022.069
    [2] 时蕴琳, 谢远云, 康春国, 迟云平, 魏振宇, 吴鹏, 孙磊, 汪烨辉.  呼伦贝尔巴彦塔拉砂砾石剖面沉积物组成和锆石U⁃Pb年龄 . 沉积学报, 2024, 42(2): 502-520. doi: 10.14027/j.issn.1000-0550.2023.009
    [3] 马瑞丰, 张威, 刘亮.  大连西海岸低地沉积环境特征及其对气候环境指示意义 . 沉积学报, 2024, (): -. doi: 10.14027/j.issn.1000-0550.2024.051
    [4] 王跃, 桂和荣, 苏尚国, 周奇明, 李俊, 张雅楠.  滇黔北五峰组—龙马溪组页岩沉积环境和古气候地球化学特征 . 沉积学报, 2022, 40(3): 653-666. doi: 10.14027/j.issn.1000-0550.2021.113
    [5] 刘振, 马志鑫, 刘伟, 凌云.  重庆秀山小茶园地区南华纪大塘坡组沉积环境与锰矿产出规律 . 沉积学报, 2021, 39(3): 515-524. doi: 10.14027/j.issn.1000-0550.2020.109
    [6] 姜柳青, 汪卫国, 梁积伟, 戴霜, 蒋敏, 陶文星, 马晓军.  太平洋CC区西部沉积物地球化学特征及其成因 . 沉积学报, 2021, 39(5): 1185-1197. doi: 10.14027/j.issn.1000-0550.2020.070
    [7] 刘文栋, 钟大康, 孙海涛, 曾鑫耀, 梁雪祺, 胡欣, 李荣容, 彭思桥, 宋雨佳.  川西北中二叠统栖霞组沉积特征及古地貌响应 . 沉积学报, 2021, 39(5): 1275-1291. doi: 10.14027/j.issn.1000-0550.2020.050
    [8] 侯阳红, 康志宏, 赵晨君, 余旭东, 王恩博.  下扬子地区下寒武统幕府山组黑色岩系地球化学特征及其地质意义 . 沉积学报, 2020, 38(4): 886-897. doi: 10.14027/j.issn.1000-0550.2019.076
    [9] 储安心, 郑刘根, 刘梦, 程世贵, 周学年.  淮南深部山西组煤中稀土元素地球化学特征 . 沉积学报, 2020, 38(2): 257-265. doi: 10.14027/j.issn.1000-0550.2019.082
    [10] 张耀续, 王利超, 谭秀成.  川北小南海剖面栖霞组岩石微相及沉积环境 . 沉积学报, 2020, 38(5): 1049-1060. doi: 10.14027/j.issn.1000-0550.2019.094
    [11] 冯帆, 关平, 刘文汇, 刘沛显.  重庆秀山南沱冰期后的海陆环境变化 . 沉积学报, 2018, 36(3): 531-541. doi: 10.14027/j.issn.1000-0550.2018.049
    [12] 杨梅, 洪天求, 徐锦龙, 李秀财, 罗雷.  皖南志留系唐家坞组物源分析:来自碎屑锆石年代学和岩石地球化学的制约 . 沉积学报, 2018, 36(1): 42-56. doi: 10.3969/j.issn.1000-0550.2018.007
    [13] 熊小辉, 王剑, 熊国庆, 汪正江, 周小琳, 邓奇, 周业鑫, 杨潇.  渝东北奥陶—志留纪之交沉积地球化学及其环境演化——以城口地区燕麦剖面临湘组—龙马溪组为例 . 沉积学报, 2018, 36(2): 257-266. doi: 10.14027/j.issn.1000-0550.2018.024
    [14] 蓝先洪, 秦亚超, 王中波, 陈晓辉, 密蓓蓓, 黄龙.  渤海东部晚更新世以来的沉积物地球化学特征 . 沉积学报, 2016, 34(5): 892-901. doi: 10.14027/j.cnki.cjxb.2016.05.008
    [15] 刘浩, 徐大良, 牛志军, 彭练红, 魏运许, 赵小明.  湖北竹山杨家堡组硅质岩成因及沉积环境分析 . 沉积学报, 2015, 33(6): 1087-1096. doi: 10.14027/j.cnki.cjxb.2015.06.003
    [16] .  重庆银矿垭口铝土矿床镓地球化学特征及成矿环境研究 . 沉积学报, 2013, 31(6): 1022-1030.
    [17] 李双应, 岳书仓.  安徽巢湖二叠系栖霞组碳酸盐岩斜坡沉积 . 沉积学报, 2002, 20(1): 7-12.
    [18] 颜佳新, 伍明, 李方林, 方念乔.  湖北省巴东栖霞组沉积成岩作用地球化学特征研究 . 沉积学报, 1998, 16(4): 78-83.
    [19] 何海清.  浙江省栖霞组沉积微相、旋回、沉积环境及其演化规律 . 沉积学报, 1996, 14(S1): 75-83.
    [20] 刘金钟, 范德廉, 刘铁兵, 叶杰.  桂西北中三叠统板纳组的沉积地球化学及金的区域分布 . 沉积学报, 1991, 9(S1): 178-186.
    • 施引文献
  • 资源附件(0)
  • 加载中
WeChat 点击查看大图
计量
  • 文章访问数:  928
  • HTML全文浏览量:  8
  • PDF下载量:  1036
  • 被引次数: 0
出版历程
  • 收稿日期:  2013-11-14
  • 修回日期:  2014-02-21
  • 刊出日期:  2014-12-10

目录

    重庆石柱二叠纪栖霞组地球化学特征及其环境意义

    • 武汉地质矿产研究所 武汉 430205
      • 基金项目:  国家自然科学基金(批准号:41240016)与中国地质调查局基础地质调查项目(编号:1212010911016,1212011220517)联合资助
      作者简介:

      田洋 男 1984年出生 硕士 沉积学 E-mail: 41834572@qq.com

    • 收稿日期: 2013-11-14
    • 修回日期: 2014-02-21
    • 刊出日期: 2014-12-10

    • 中图分类号: P595;TE121.3+1

    摘要: 在对重庆市石柱县二叠纪栖霞组地层野外露头沉积特征研究的基础上,结合室内薄片观察,根据碳酸盐岩样品的元素含量、比值及相关性,探讨了栖霞组沉积地球化学特征与古环境意义.用于古环境分析的10件栖霞组样品SiO2、MgO含量低,且两者具有较好的正相关性,Sr含量高,平均为1 751×10-6,Mn/Sr<0.1,Fe/Sr<1,δ18OPDB>-10‰,表明成岩过程中样品几乎不受硅化及白云岩化作用的影响,未发生化学性质上的改变,可作为古环境分析的可靠对象.栖霞组碳酸盐岩CaO含量高,平均为53.81%,接近纯灰岩的理论化学组成,陆源元素Al2O3、TiO2含量很低,平均值分别为0.17%与0.012%,表明其形成于陆源碎屑影响微弱的稳定古海洋环境.古气候指标MgO/CaO比值极低,平均为0.026,古盐度指标100×(MgO/Al2O3)比值高,平均为1 241,古水深判别指标Sr/Ba、1000×(Sr/Ca)比值高,平均值分别为286和4.54,指示了栖霞组碳酸盐岩为潮湿气候下的陆表海(远岸)沉积.古氧相地球化学指标U/Al、V/Al、Mo/Al、Cr/Al、Co/Al、V/(V+Ni)和U/Th特征一致表明栖霞组碳酸盐岩沉积于贫氧—缺氧环境.垂向上,陆源元素∑(Al2O3+TiO2)含量逐渐降低,古水深指标Sr/Ba、1000×(Sr/Ca)比值逐渐增大,表明栖霞组沉积过程中离岸渐远、陆源供给逐步减少、水体持续加深.

    English Abstract

    田洋, 赵小明, 王令占, 涂兵, 谢国刚, 曾波夫. 重庆石柱二叠纪栖霞组地球化学特征及其环境意义[J]. 沉积学报, 2014, 32(6): 1035-1045.
    引用本文: 田洋, 赵小明, 王令占, 涂兵, 谢国刚, 曾波夫. 重庆石柱二叠纪栖霞组地球化学特征及其环境意义[J]. 沉积学报, 2014, 32(6): 1035-1045.
    shu
    TIAN Yang, ZHAO Xiao-ming, WANG Ling-zhan, TU Bing, XIE Guo-gang, ZENG Bo-fu. Geochemical Characteristics and Its Paleoenvironmental Implication of Permian Qixia Formation in Shizhu, Chongqing[J]. Acta Sedimentologica Sinica, 2014, 32(6): 1035-1045.
    Citation: TIAN Yang, ZHAO Xiao-ming, WANG Ling-zhan, TU Bing, XIE Guo-gang, ZENG Bo-fu. Geochemical Characteristics and Its Paleoenvironmental Implication of Permian Qixia Formation in Shizhu, Chongqing[J]. Acta Sedimentologica Sinica, 2014, 32(6): 1035-1045.
    shu

      全文HTML

    参考文献 (35)

    目录

      /

      返回文章
      返回

      友情链接

      期刊在线

      联系我们

      • 网站版权 © 2011《沉积学报》编辑部
      • 地址: 兰州市天水中路8号
      • 邮编: 730000   Tel:（0931）8264231
      • 陇ICP备2021001824号-28
      • 甘公网安备 62010202000673号
      关注微信公众号

      Email alert

      RSS

      系统由 北京仁和汇智信息技术有限公司 设计集成    百度统计

      x 关闭 永久关闭

      2023年地质事件沉积研究新进展国际学术研讨会（第一号通知）