云南兰坪盆地古近系细碎屑岩地球化学特征及其地质意义

doi:10.13278/j.cnki.jjuese.201506107

摘要/Abstract

摘要：

采用电感耦合等离子体质谱(ICP-MS)方法对兰坪盆地古近系104件细碎屑岩样品进行了稀土元素及微量元素分析,结果显示∑LEE含量较高,轻稀土含量较富集、重稀土含量较亏损,显示出明显的"右倾"型配分模式。根据稀土元素和微量元素特征、w(Zr)-w(Th)、La-Th-Sc、Th-Sc-Zr/10等多种沉积构造背景判别图解及多种交叉分析方法,对兰坪盆地古近系细碎屑源岩构造背景进行了详细研究。利用La/Th-Hf和La/Yb-∑REE判别图解对兰坪盆地古近系源岩属性进行了分析,结果表明:兰坪盆地古近系碎屑源岩主要以上地壳长英质岩石为主,并混有少量基性岩,反映其物源区构造背景为早期为大陆岛弧构造背景,至晚期逐渐过渡为被动大陆边缘构造背景。

关键词: 地球化学, 古近系, 碎屑岩, 兰坪盆地

Abstract:

The rare earth elements (REE) and trace elements are analyzed by ICP-MS for the 104 pieces of Paleogene fine clastic rock samples from Lanping basin, Yunnan Province. ∑REE is relatively high;and the differentiation is significant between LREE and HREE.LREE is abundant; while HREE is depleted. LREE is heeling rightward obviously; while HREE is even, with Eu and Ce negative anomaly. The tectonic background of Paleogene fine clastic rock in Lanping basin is studied in detail through an analysis on the geochemical characteristics of REEs and trace elements, sedimentary tectonic setting discrimination diagrams with w(Zr)-w(Th), La-Th-Sc, Th-Sc-Zr/10, and a variety of crossover methods. The property of source rock is also analyzed by La/Th-Hf and La/Yb-∑REE discrimination diagrams. The results show that the Paleogene clastic source rocks in Lanping basin are mainly felsic rocks derived from the upper crust, and mixed with a small amount of andesitic source. These results show that the source rocks formed tectonically in an environment of early continental arc which transferred later to a passive continental margin.

Key words: geochemistry, Paleogene, clastic rock, Lanping basin

中图分类号:

P595

朱志军, 郭福生, 刘腾, 刘远超. 云南兰坪盆地古近系细碎屑岩地球化学特征及其地质意义[J]. 吉林大学学报(地球科学版), 2015, 45(6): 1631-1641.

Zhu Zhijun, Guo Fusheng, Liu Teng, Liu Yuanchao. Geochemical Characteristics of Paleogene Fine Clastic Rock and Its Geological Significance in Lanping Basin, Yunnan[J]. Journal of Jilin University(Earth Science Edition), 2015, 45(6): 1631-1641.

参考文献

[1] 薛春纪, 陈毓川, 杨建民, 等. 滇西兰坪盆地构造体制和成矿背景分析[J]. 矿床地质,2002, 21(1): 36-44. Xue Chunji,Chen Yuchuan, Yang Jianmin, et al. Analysis of Ore-Forming Background and Tectonic System of Lanping Basin, Western Yunnan Province[J]. Mineral Deposits,2002, 21(1): 36-44.

[2] 何龙清, 陈开旭, 余凤鸣, 等.云南兰坪盆地推覆构造及其控矿作用[J]. 地质与勘探,2004,40(4): 7-12. He Longqing, Chen Kaixu, Yu Fengming, et al. Nappe Tectonics and Their Ore-Controlling of Lanping Basin in Yunnan Province[J].Geology and Prospecting,2004,40(4): 7-12.

[3] 张峰, 唐菊兴, 陈洪德, 等.兰坪盆地演化与盆内成矿流体特征[J]. 矿物学报,2010, 30(2): 223-229. Zhang Feng, Tang Juxing, Chen Hongde, et al. Evolution of Lanping Basin and the Characteristics of Minerogenic Fluid in Lanping Basin[J]. Acta Mineralogica Sinica,2010, 30(2): 223-229.

[4] 朱志军, 姜勇彪, 郭福生, 等.兰坪盆地古近纪沉积相类型及沉积环境演化[J]. 岩石矿物学杂志, 2011 ,30(3): 409-418. Zhu Zhijun, Jiang Yongbiao, Guo Fusheng, et al. Palaeogene Sedimentary Facies Types and Sedimentary Environment Evolution in Lanping Basin[J]. Acta Petrologica ET Mineralogica, 2011 ,30(3): 409-418.

[5] 罗君烈, 杨友华, 赵准, 等.滇西特提斯的演化及主要金属矿床的成矿作用[M]. 北京: 地质出版社, 1994:157-215. Luo Junlie, Yang Youhua, Zhao Zhun, et al. The Evolution and Mineralization of Major Metallic Ore Deposits in Western Yunnan Province[M]. Beijing: Geological Publishing House,1994:157-215.

[6] 王义昭, 李兴林, 段丽兰, 等.三江地区南段大地构造与成矿[M]. 北京: 地质出版社, 2000:107-120. Wang Yizhao, Li Xinglin, Duan Lilan, et al. Sanjiang Area South of Tectonics and Metallogeny[M]. Beijing: Geological Publishing House, 2000:107-120.

[7] 牟传龙, 刘宝珺, 周建文, 等.兰坪中新生代沉积盆地模拟与流体势[J]. 矿物岩石, 2001,21(3): 43-51. Mou Chuanlong, Liu Baojun, Zhou Jianwen, et al. The Simulation and Fluid Potential of the Cenozoic Sedimentary Basin in Lanping Area[J].Journal of Mineralogy and Petrology,2001,21(3): 43-51.

[8] 牟传龙, 王剑, 余谦, 等.兰坪中新生代沉积盆地演化[J]. 矿物岩石,1999,19(3): 30-36. Mou Chuanlong, Wang Jian , Yu Qian, et al. The Evolution of the Sedimentary Basin in Lanping Area During Mesozoic-Cenozoic[J]. Journal of Mineralogy and Petrology,1999,19(3): 30-36.

[9] 徐仕海, 顾雪祥, 唐菊兴, 等.兰坪盆地三类主要铜银多金属矿床的稳定同位素地球化学[J]. 矿物岩石地球化学通报, 2005, 24(4): 309-316. Xu Shihai, Gu Xuexiang, Tang Juxing, et al. Stable Isotopic Geochemistry of Three Major Tapes of Cu-Ag Polymetallic Deposits in the Lanping Basin, Yunnan[J]. Bulletin of Mineralogy, Petrology and Geochemistry, 2005, 24(4): 309-316.

[10] 邵磊, 李献华, 韦刚健, 等.南海陆坡高速堆积物的物质来源[J]. 中国科学:D辑, 2001, 31(10): 828-833. Shao Lei,Li Xianhua, Wei Gangjian, et al. Source Material of High Accumulation of the Continental Slope of the South China Sea[J]. Science in China: Series D, 2001, 31(10): 828-833.

[11] Bhatia M R. Plate Tectonic and Geochemical Composition of Sandstones[J]. The Journal of Geology, 1983,91(6): 611-627.

[12] Bhatia M R. Race Earth Element Geochemistry of Australian Paleozoic Greywackes and Mudrocks: Province and Tectonic Control[J]. Sedimentary Geology, 1985, 45(1/2): 97-113.

[13] Bhatia M R, Crook K A W. Trace Element Characteristics of Greywackes and Tectonic Setting Discri-mination Sedimentary Basin[J]. Contributions to Mineralogy and Petrology, 1986,92(2):181-193.

[14] Roser B P, Korsch R J. Determination of Tectonic Setting of Sandstones-Mudstone Suites Using SiO₂ Content and K₂O/Na₂O Ratio[J]. Journal of Geology, 1986, 94(5): 635-650.

[15] Roser B P, Korsch R J. Provenance Signatures of Sandstone-Mudstone Suites Determined Using Discriminant Function Analysis of Major-Element Data[J]. Chemical Geology, 1988, 67(1/2): 119-139.

[16] 孟庆涛, 刘招君, 胡菲, 等. 桦甸盆地始新统油页岩稀土元素地球化学特征及其地质意义[J]. 吉林大学学报:地球科学版, 2013, 43(2): 390-399. Meng Qingtao, Liu Zhaojun, Hu Fei, et al. Geochemical Characteristics of Eocene Oil Shale and Its Geological Significances in Huadian Basin[J]. Journal of Jilin University: Earth Science Edition, 2013, 43(2): 390-399.

[17] 和政军, 李锦轶, 莫申国, 等. 漠河前陆盆地砂岩岩石地球化学的构造背景和物源区分析[J]. 中国科学:D辑, 2003, 33(12): 1219-1226. He Zhengjun, Li Jinyi, Mo Shenguo, et al. Geochemical Discriminations of Sandstones from the Mohe Foreland Basin, Northeastern China: Tectonic Setting and Provenance[J]. Science in China: Series D, 2003, 33(12): 1219-1226.

[18] 和政军, 牛宝贵, 任纪舜. 陕南山阳地区刘岭群砂岩岩石地球化学特征及其构造背景分析[J]. 地质科学, 2005, 40(4): 594-607. He Zhengjun, Niu Baogui, Ren Jishun. Tectonic Discrminations of Sandstones Geochemistry from the Middle-Late Devonian Liuling Group in Shanyang Area, Southern Shaanxi[J]. Chinese Journal of Geology, 2005, 40(4): 594-607.

[19] 朱志军, 陈洪德, 林良彪, 范昱.川东南湘西地区志留系小河坝砂岩微量元素地球化学特征及沉积环境意义[J]. 地质科技情报, 2010, 29(2): 24-30. Zhu Zhijun, Chen Hongde, Lin Linagbiao, et al. Signification and Characteristic of the Trace Element Rations of the Sandstone in Silurian Xiaoheba Formation in Southeastern Sichuan Province and Western Hunan Province[J]. Geological Science and Technology Information, 2010, 29(2): 24-30.

[20] 王国茹, 陈洪德, 朱志军, 林良彪, 范昱.川东南湘西地区志留系小河坝组砂岩稀土元素特征及其地质意义[J]. 石油实验地质, 2010,32(5): 497-495. Wang Guoru, Chen Hongde, Zhu Zhijun, et al. The Characteristics and Geological Implications of Rare Earth Elements in Sandstone of Lower Silurian Xiaoheba Formation in The Southeastern Sichuan-Western Hunan[J]. Petroleum Geology & Experiment, 2010,32(5): 497-495.

[21] Elderfield H, Greaves M J. The Rare Earth Elements in Seawater[J]. Nature, 1982, 296: 214-219.

[22] Taylor S R, McLennan S M. The Continental Crust: Its Composition and Evolution[M]. Oxford: Black-Well, 1985:117-140.

[23] 李佑国, 候中健, 王安建, 等.兰坪盆地新生代碎屑岩地球化学特征及其对物源制约[J]. 岩石学报, 2006, 22(3): 751-760. Li Youguo, Hou Zhongjian, Wang Anjian, et al. Geochemistry of Cenozoic Detrital Rock Sand Its Constrainsts on Provenance in Lanping Basin[J]. Acta Petrologica Sinica, 2006, 22(3): 751-760.

[24] 李志明, 刘家军, 胡瑞忠, 等.兰坪中新生代盆地沉积岩源区构造背景和物源属性研究:砂岩地球化学证据[J]. 沉积学报, 2003, 21(4): 547-552. Li Zhiming, Liu jiajun, Hu Ruizhong, et al. Tectonic Setting and Provenance of Source Rock for Sedimentary Rocks in Lanping Mesozoic-Cenozoic Basin: Evidences from Geochemistry of Sandstones[J]. Acta Sedimentologica Sinica, 2003, 21(4): 547-552.

[25] 刘岫峰. 沉积岩实验室研究方法[M]. 成都:成都理工大学, 1983:107-120. Liu Xiufeng. Research Method of Sedimentary Rock Laboratory[M]. Chengdu:Chengdu University of Technology, 1983:107-120.

[26] Bhatia M R, Taylor S R. Trace Element Geochemistry and Sedimentary Provinces: Study from the Tasman Geosyncline, Australia[J]. Chemical Geology, 1981, 33(1/2/3/4): 115-125.

[27] Gu X X. Geochemical Characteristics of the Triassic Tethys-Turbidites in Northwestern Sichuan, China: Implications for Provenance and Interpretation of the Tectonic Setting[J]. Geochimica et Cosmochimica Acta, 1994, 58: 4615-4631.

相关文章 15

[1]	任宪军, 石云倩. 松辽盆地南部下白垩统火石岭组钙碱性火山岩地球化学特征及成因[J]. 吉林大学学报(地球科学版), 2026, 56(3): 818-834.
[2]	王常东, 董小宇, 郝晓飞, 姜山, 于兵, 周舰, 王天奇. 广兴—芝瑞盆地上伙房地段流纹斑岩地球化学特征及其地质意义[J]. 吉林大学学报(地球科学版), 2026, 56(3): 835-851.
[3]	刘宇泰, 李碧乐, 陈晓琳, 李浩然, 史雨凡, 孙亚明. 东昆仑沟里地区瓦勒尕南矿区花岗闪长岩地球化学特征、锆石U-Pb年代学及其地质意义[J]. 吉林大学学报(地球科学版), 2026, 56(3): 875-895.
[4]	张海洪, 乔锦燃, 陈国强, 薛晓刚, 邓馨卉, 苗长盛, 李雪, 郜春生. 张广才岭南部早侏罗世两类I型花岗岩成因：年代学、地球化学和锆石Hf同位素证据[J]. 吉林大学学报(地球科学版), 2026, 56(3): 896-914.
[5]	赵振, 秦光雄, 闫佰忠, 马苗苗. 青海省互助土族自治县地热田水化学特征及成因机制[J]. 吉林大学学报(地球科学版), 2026, 56(3): 986-1001.
[6]	何天鑫, 柳蓉, 刘强浩, 宁婷, . 银额盆地下白垩统巴音戈壁组纤维状方解石脉成因机制——热水沉积与同位素证据[J]. 吉林大学学报(地球科学版), 2026, 56(2): 497-510.
[7]	李阳, 周文博, 王长虹, 刘娜, 苟军, 孙文博, 孙家兴, 孙德有. 海拉尔盆地克鲁伦凹陷赋铀地层沉积物源#br#[J]. 吉林大学学报(地球科学版), 2026, 56(2): 522-539.
[8]	徐骏, 高阳, 刘军, 王晓彤, . 大兴安岭北段三矿沟铁铜矿床成因——来自石榴子石U-Pb定年及元素地球化学证据[J]. 吉林大学学报(地球科学版), 2026, 56(2): 540-556.
[9]	张佳琦, 王志新, 梁琛岳, 郑常青, 刘永江. 吉中地区范家屯组变沉积岩碎屑锆石年代学与Hf同位素示踪——对古亚洲洋东段闭合的约束[J]. 吉林大学学报(地球科学版), 2026, 56(1): 149-172.
[10]	高心如, 梁琛岳, 郑常青, 刘永江, 周建波, 宋志伟, 贾祥鹤, 殷浚哲, 洪雨萱, 谭卓, 张佳琦. 蒙古—鄂霍茨克构造域东段晚中生代演化历史——来自岩浆岩和沉积岩的证据[J]. 吉林大学学报(地球科学版), 2026, 56(1): 36-65.
[11]	许中杰, 冷龙, 朱占平, 段煜, 张芳霞, 徐大志. 渤海湾盆地歧口凹陷古近纪构造背景分析：来自碎屑锆石U-Pb年代学的证据[J]. 吉林大学学报(地球科学版), 2026, 56(1): 229-251.
[12]	陈卓, 周建波, 李功宇, 辛中华, 王红燕, 孙宁辰. 北方造山带东段微陆块构造属性与超大陆重建[J]. 吉林大学学报(地球科学版), 2026, 56(1): 1-16.
[13]	柳蓉, 何天鑫, 张浩然, 刘强浩, 张苡铭. 中国典型含油气盆地热液作用及其对沉积环境的影响[J]. 吉林大学学报(地球科学版), 2025, 55(6): 1785-1805.
[14]	张万仁, 吴保祥, 韦枫, 杨维刚, 刘杰. 甘肃省宕昌—崖湾地区水系沉积物地球化学特征与锑找矿预测[J]. 吉林大学学报(地球科学版), 2025, 55(5): 1462-1480.
[15]	郑伟, 刘东宏, 吴晓东, 孙煜恒, 邢波. 粤西石菉Cu-Mo矿床石榴子石与符山石地球化学特征及其对成矿流体演化的制约[J]. 吉林大学学报(地球科学版), 2025, 55(5): 1481-1505.

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed