四川盆地中南部寒武系白云岩特征及形成机制

doi:10.13278/j.cnki.jjuese.201703111

摘要/Abstract

摘要： 四川盆地寒武系厚度达千米，岩性从下到上依次由泥页岩-粉砂质泥岩-灰质白云岩-纯白云岩组成，其优质储层主要为中—上寒武统冼象池组的白云岩。本文通过与川东北长兴组飞仙关组、塔河油田奥陶系白云岩对比，应用微量元素、稀土元素、碳、氧、锶同位素等分析测试结果，对四川盆地中南部寒武系白云岩特征及形成机制进行了研究。研究结果表明：四川盆地中南部寒武系白云岩具有较高的铁、锰质量分数，平均值分别为6 502.9×10^-6和468.3×10^-6，较低的锶质量分数，平均值为74.0×10^-6，较低的碳氧同位素值，δ¹³C_VPDB和δ¹⁸O_VPDB平均值分别为-2.38‰和-7.74‰；四川盆地中南部寒武系碳酸盐岩经历了大气淡水淋滤作用，可能为准同生白云石化或混合水白云石化作用。

关键词: 川中南部寒武系, 白云岩, 白云化机制, 混合水白云石化, 四川盆地

Abstract: The Cambrian strata in Sichuan basin are thick up to 1 000 m, and composed, from bottom to top, of mud shale, silty mudstone, calcite dolomite and dolomite. The major favorable reservoir is the dolomite in the Middle-Upper Cambrian Xixiangchi Formation. On basis of comparison of the Cambrian dolomite in middle-south Sichuan basin with those in Feixianguan-Changxing Formation in NE Sichuan basin and Ordovician system in Tahe oilfield, the analysis results of trace element, rare earth element and isotope of C, O, Sr have been involved to discuss characteristics and formation mechanism of the Cambrian dolomite in middle-south Sichuan basin. The research shows that the Cambrian dolomite in study area has relative high Fe and Mn content, with average content of 6 502.9×10^-6 and 468.3×10^-6, respectively. It also has relative low Sr Content, δ¹³C andδ¹⁸O, with average of 74.0×10^-6, -2.38‰(VPDB) and -7.74‰(VPDB), respectively. It's concluded that the carbonate in middle-south Sichuan basin experienced the fresh water leaching. The diagenesis can be penecontemporaneous dolomization or mixing water dolomization.

Key words: Cambrian system in middle-south Sichuan basin, dolomite, dolomization mechanism, mixing water dolomization, Sichuan basin

中图分类号:

P578.6

刘丽红, 杜小弟, 徐守礼, 文华国. 四川盆地中南部寒武系白云岩特征及形成机制[J]. 吉林大学学报(地球科学版), 2017, 47(3): 775-784.

Liu Lihong, Du Xiaodi, Xu Shouli, Wen Huaguo. Characteristics and Formation of the Cambrian Dolomite in Middle-South Sichuan Basin, China[J]. Journal of Jilin University(Earth Science Edition), 2017, 47(3): 775-784.

参考文献

[1] 肖开华, 沃玉进, 周雁, 等. 中国南方海相层系油气成藏特点与勘探方向[J]. 石油与天然气地质, 2006, 27(3): 316-325. Xiao Kaihua, Wo Yujin, Zhou Yan, et al. Petroleum Reservoiring Characteristics and Exploration Direction in Marine Strata in Southern China [J]. Oil & Gas Geology, 2006, 27(3): 316-325.
[2] 冉隆辉, 谢姚祥, 王兰生. 从四川盆地解读中国南方海相碳酸盐岩油气勘探[J]. 石油与天然气地质, 2006, 27(3): 289-294. Ran Longhui, Xie Yaoxiang, Wang Lansheng. Understanding Exploration of Marine Carbonate Reservoirs in South China Through Sichuan Basin [J]. Oil & Gas Geology, 2006, 27(3): 289-294.
[3] 金之钧, 蔡立国. 中国海相油气勘探前景、主要问题与对策[J]. 石油与天然气地质, 2006, 27(6): 722-730. Jin Zhijun, Cai Liguo.Exploration Propects, Problems and Strategies of Marine Oil and Gas in China [J]. Oil & Gas Geology, 2006, 27(6): 722-730.
[4] 徐胜林, 陈洪德, 陈安清, 等. 四川盆地海相地层烃源岩特征[J]. 吉林大学学报(地球科学版), 2011, 41(2): 343-350, 358. Xu Shenglin, Chen Hongde, Chen Anqing, et al. Source Rock Characteristics of Marine Strata, Sichuan Basin[J]. Journal of Jilin University (Earth Science Edition), 2011, 41(2): 343-350, 358.
[5] 黄籍中, 陈盛吉, 宋家荣, 等. 四川盆地碳酸盐岩发育区主要烃源岩分布及有机质演化研究:烃源体系与大中型气田的形成及预测[J]. 天然气工业, 1996, (增刊1): 68-78, 108-109. Huang Jizhong, Chen Shengji, Song Jiarong, et al. Research on Main Hydrocarbon Source Rock Distribution and Organic Evaluation of Carbonate Rock Developed Areas in Sichuan Basin [J]. Natural Gas Industry, 1996, (Sup.1): 68-78, 108-109.
[6] 黄文明, 刘树根, 张长俊, 等. 四川盆地寒武系储层特征及优质储层形成机理[J]. 石油与天然气地质, 2009, 30(5): 566-575. Huang Wenming, Liu Shugen, Zhang Changjun, et al. Reservoir Characteristics and Formation Mechanism of the High Quality Cambrian Reservoirs in Sichuan Basin [J]. Oil & Gas Geology, 2009, 30(5): 566-575.
[7] 徐燕丽. 川中地区震旦系—寒武系油气成藏条件研究[D]. 成都:成都理工大学,2009. Xu Yanli. Study on Conditions of Hydrocarbon Accumulation, Sinian-Cambrian, Middle of Sichuan Basin [D]. Chengdu: Chengdu University of Technology, 2009.
[8] 江祖成, 胡斌, 曾纪铭. 海水中某些稀有金属的分离预富集和ICP光谱法测定研究[J]. 分析实验室,1995, 14(2): 1-4. Jiang Zucheng, Hu Bin, Zeng Jiming. The Separation and Preconcentration of Rare Metal in Sea Water [J]. Analytical Laboratory, 1995, 14(2): 1-4.
[9] 刘丽红, 黄思静, 王春连, 等. 碳酸盐岩中方解石胶结物的阴极发光环带与微量元素构成的关系:以塔河油田奥陶系碳酸盐岩为例[J]. 海相油气地质, 2010, 15(1): 55-60. Liu Lihong, Huang Sijing, Wang Chunlian,et al. Cathodoluminescence Zonal Texture of Calcite Cement in Carbonate Rock and Its Relationship with Trace Element Composition: A Case of Ordovician Carbonate Rock of Tahe Oilfield, Tarim Basin [J]. Marine Origin Petroleum Geology, 2010, 15(1): 55-60.
[10] Derry L A, Keto L, Jacobsen S, et al. Sr Isotopic Variations in Upper Proterozoic Carbonates from Svalbard and East Greenland[J]. Geochimica Et Cosmochimica Acta, 1989, 53: 2331-2339.
[11] 黄思静, Qing Hairuo, 裴昌蓉, 等. 川东三叠系飞仙关组白云岩锶含量、锶同位素组成与白云化流体[J]. 岩石学报, 2006, 22(8): 2123-2132. Huang Sijing, Qing Hairuo, Pei Changrong, et al. Strontium Concentration, Isotope Composition and Dolomitization Fluids in the Feixianguan Formation of Triassic, Eastern Sichuan of China[J]. Acta Petrologica Sinica, 2006, 22(8): 2123-2132.
[12] 文华国, 郑荣才, 沈忠民, 等. 南大巴山前缘黄龙组古岩溶储层锶同位素地球化学特征[J]. 吉林大学学报(地球科学版), 2009, 39(5): 789-795. Wen Huaguo, Zheng Rongcai, Shen Zhongmin, et al. Geochemical Characteristics of Strontium Isotope of the Paleokarst Reservoirs in the Huanglong Formation at the Margin of Southern Daba Mountain [J]. Journal of Jilin University (Earth Science Edition), 2009, 39(5): 789-795.
[13] 郑永飞, 徐宝龙, 周根陶. 矿物稳定同位素地球化学研究[J]. 地学前缘, 2000, 7(2): 299-320. Zheng Yongfei, Xu Baolong, Zhou Gentao. Geochemical Studies of Stable Isotopes in Minerals [J]. Earth Science Frontiers, 2000, 7(2): 299-320.
[14] 黄思静, Qing Hairuo, 胡作维, 等. 封闭系统中的白云石化作用及其石油地质学和矿床学意义:以四川盆地东北部三叠系飞仙关组碳酸盐岩为例 [J]. 岩石学报, 2007, 23(11): 2955-2962. Huang Sijing, Qing Hairuo, Hu Zuowei, et al. Closed-System Dolimitization and the Significance for Petroleum and Economic Geology: An Example from Feixianguan Carbonates, Triassic, NE Sichuan Basin of China [J]. Acta Petrogica Sinaca, 2007, 23(11): 2955-2962.
[15] Veizer J, Ala D, Azmy K, et al. ⁸⁷Sr/⁸⁶Sr, δ¹³C and δ¹⁸O Evolution of Phanerozoic Seawater[J]. Chemical Geology, 1999, 161: 59-88.
[16] 丁振举, 刘丛强, 姚书振, 等. 东沟坝多金属矿床矿质来源的稀土元素地球化学限制[J]. 吉林大学学报(地球科学版), 2003, 33(4): 437-442. Ding Zhenju, Liu Congqiang, Yao Shuzhen, et al. The REE Constraints on Ore Sources of the Donggouba Polymetallic Deposit [J]. Journal of Jilin University (Earth Science Edition), 2003, 33(4): 437-442.
[17] 徐文礼, 郑荣才, 颜雪, 等.下扬子地区早古生代黑色岩系地球化学特征及其地质意义[J].吉林大学学报(地球科学版), 2014, 44(1): 1108-1122. Xu Wenli, Zheng Rongcai, Yan Xue, et al. Trace and Rare Earthelement Geochemistry of the Early Paleozoic Black Shales in the Lower Yangtze Area and Its Geological Significances[J]. Journal of Jilin University (Earth Science Edition), 2014, 44(1): 1108-1122.
[18] 魏国齐, 杨威, 张林, 等. 川东北飞仙关组鲕滩储层白云石化成因模式[J]. 天然气地球科学, 2005,16 (2): 162-166. Wei Guoqi, Yang Wei, Zhang Lin, et al. Dolomitization Genetic Model of Feixianguan Group Oolitic Beach Reservoir in Northeast Sichuan Basin [J]. Natural Gas Geoscience, 2005, 16 (2): 162-166.
[19] 黄思静, 佟宏鹏, 刘丽红, 等. 川东北飞仙关组白云岩的主要类型、地球化学特征和白云化机制[J]. 岩石学报, 2009, 25(10): 2363-2372. Huang Sijing, Tong Hongpeng, Liu Lihong, et al. Petrography, Geoehemistry and Dolomitization Mechanisms of Feixianguan Dolomites in Triassic, NE Sichuan, China[J]. Acta Petrologica Sinica, 2009, 25(10): 2363-2372.
[20] Machel H G. Concepts and Models of Dolomitization: A Critical Reappraisal [J]. London, Geological Society, Special Publications, 2004, 235(1):7-63.
[21] 黄思静. 碳酸盐岩的成岩作用[M]. 北京: 地质出版社, 2010. Huang Sijing.Carbonate Diagenesis [M].Beijing: Geology Publishing House, 2010.

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