南盘江盆地石炭系沉积体系及页岩气有利区带

doi:10.19657/j.geoscience.1000-8527.2018.04.14

摘要/Abstract

摘要：

综合利用重点剖面实测资料、区域地质调查资料,结合公开发表的成果,讨论了南盘江盆地石炭系沉积体系类型、特征及其分布规律,基于深水沉积相带的分布,预测了南盘江盆地石炭系页岩气有利区。南盘江盆地石炭系发育三角洲—碎屑滨岸、滨海沼泽、陆源碎屑陆架、碎屑陆坡、局限海台地、开阔海台地、台地边缘、深水盆地8种沉积体系。石炭纪,马关隆起、康滇隆起、江南隆起及云开隆起为暴露剥蚀区,但陆源碎屑供应较弱,陆源碎屑沉积主要发育于石炭纪早期,整个石炭纪以内源沉积占优势。早石炭世,云开隆起周边发育陆源碎屑滨岸沉积,在江南隆起南缘发育碎屑滨岸和滨海沼泽沉积,主体为局限台地—开阔台地—孤立台地—台地边缘—深海的沉积格局。晚石炭世,隆起区和深海区均有所缩小,开阔台地范围显著扩大,隆起周缘主要发育局限台地。南丹—河池、罗甸西、柳城—鹿寨—平乐地区、象州—武宣—桂平等地区上古生界出露地表,石炭系埋藏浅,且以深海沉积为主,是寻找石炭系页岩气最为有利的地区。

关键词: 南盘江盆地, 石炭系, 沉积体系, 深水沉积, 页岩气有利区带

Abstract:

Synthetically utilized the data of key profiles and regional geological survey data, combined with published research results,the sedimentary system types, characteristics and distribution of the Carboniferous in the Nanpanjiang Basin have been discussed, and based on the distribution of deep-water facies, the shale gas favorable areas of the Carboniferous in the Nanpanjiang Basin have been predicted. There were 8 sedimentary systems, such as river delta-clastic littoral, coastal marsh, terrigenous shelf, terrigenous slope, restricted platform, open platform, platform margin, slope and deep sea, developed during Carboniferous in the Nanpanjiang Basin. During Carboniferous, the exposed or denuded area located the uplifts of Maguan, Kangdian, Jiangnan and Yunkai, but the terrigenous supply is relatively small, the terrigenous sediments mainly developed in Early Carboniferous, the carbonate and mud sediments dominated in Carboniferous. During Early Carboniferous, the clastic littoral deposits developed surrounding the Yunkai Uplift, the clastic littoral and the coastal marsh develo-ped in the south margin of the Jiangnan Uplift, the main sedimentary systems consisted of the restricted platform, open platform, platform margin, slope and deep sea. During Late Carboniferous, both the uplift and the deep sea depositional areas are reduced, the open platform range significantly expanded, the restricted platform developed nearby the uplifts. The regions of Nandan-Hechi, western Luodian,Liucheng-Luzai-Pingle and Xiang-zhou-Wuxuan-Guiping, the Upper Paleozoic exposed surface, the Carboniferous shallow buried and dominated by deep sea sediments, are the most favorable areas for the exploration of shale-gas of the Carboniferous in the Nanpanjiang Basin.

Key words: Nanpanjiang Basin, Carboniferous, sedimentary system, deep-water deposition, favorable areas of shale-gas

中图分类号:

辛云路, 王劲铸, 金春爽. 南盘江盆地石炭系沉积体系及页岩气有利区带[J]. 现代地质, 2018, 32(04): 774-785.

XIN Yunlu, WANG Jinzhu, JIN Chunshuang. Sedimentary System and the Shale-gas Favorable Area of the Carboniferous in the Nanpanjiang Basin[J]. Geoscience, 2018, 32(04): 774-785.

图/表 8

图1 南盘江盆地区域构造-地层格架及矿点分布 1.省会城市; 2.市; 3.县; 4.省界; 5.隆起边界; 6.海岸线; 7.主要断层; 8.盆内断层; 9.古油藏; 10.金矿; 11.锑矿; 12.汞矿; 13.锰矿; 14.隆起区(出露下古生界及以老地层); 15.上古生界出露区; 16.中生界出露区;区域构造-地层格架据1∶50万地质图简化;矿点分布据文献[21??????-28]编绘

Fig.1 Tectonic stratigraphic framework and the distribution of deposits of the Nanpanjiang Basin

表1 南盘江盆地及邻区石炭系地层对比

Table 1 Carboniferous stratigraphic chart of the Nanpanjiang Basin and its adjacent areas

图2 广西罗城县天水下石炭统剖面沉积体系分析柱状图(据文献[33]和实测资料编绘)

Fig.2 Histogram of Lower Carboniferous sedimentary systems analysis in Tianshui of Luocheng County, Guangxi

图3 广西桂平县峡湾大塘组底部砂质灰岩发育的冲洗交错层理

Fig.3 Swash cross bedding of the sandy limestone at the bottom of Datang Formation, Guiping County, Guangxi

图4 广西柳州市桥头村上石炭统剖面沉积体系分析柱状图(据文献[33]和实测资料编绘)

Fig.4 Histogram of Upper Carboniferous sedimentary system analysis at Qiaotou Village of Liuzhou, Guangxi

图5 南盘江盆地下石炭统沉积体系平面图 1.省会城市; 2.市; 3.县; 4.省界; 5.主要同沉积断裂及倾向; 6.海岸线; 7.地层缺失线; 8.相带分界线; 9.隆起区; 10.三角洲-碎屑滨岸; 11.陆架; 12.陆坡; 13.局限台地; 14.开阔台地; 15.台地边缘; 16. 深海; 17.滨海沼泽

Fig.5 Sedimentary system distribution of the Lower Carboniferous in the Nanpanjiang Basin

图6 南盘江盆地及邻区晚石炭世沉积体系平面图 1.省会城市; 2.市; 3.县; 4.省界; 5.主要同沉积断裂及倾向; 6.海岸线; 7.地层缺失线; 8.相带分界线; 9.隆起区; 10.三角洲-碎屑滨岸; 11.陆架; 12.陆坡; 13.局限台地; 14.开阔台地; 15.台地边缘; 16.深海; 17.滨海沼泽

Fig.6 Sedimentary system distribution of the Upper Carboniferous in the Nanpanjiang Basin

图7 南盘江盆地石炭系页岩气有利区预测平面图 1.省会城市; 2.市; 3.县; 4.省界; 5.海岸线; 6.上石炭统深水沉积区边界; 7.下石炭统深水沉积区边界; 8.上石炭统深水沉积分布区; 9.下石炭统深水沉积分布区; 10.上古生界出露区

Fig.7 Predictive favorable areas of shale gas of the Carboniferous in the Nanpanjiang Basin

参考文献 40

[1]	黄汲清, 任纪舜, 蒋春发, 等. 中国大地构造及其演化[M]. 北京: 科学出版社, 1980: 61.
[2]	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[M]. 北京: 科学出版社, 1990: 1-207.
[3]	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: 1-289.
[4]	冯增昭, 金振奎, 杨玉卿, 等. 滇黔桂地区二叠纪岩相古地理[M]. 北京: 地质出版社, 1994: 1-217.
[5]	范砚荣, 童吉福. 滇黔桂地区中古生界油气地质条件及勘探选区[J]. 海相油气地质, 1997, 2(4):35-42.
[6]	赵孟军, 张水昌, 赵陵, 等. 南盘江盆地油气成藏过程及天然气勘探前景分析[J]. 地质论评, 2006, 52(5): 642-649.
[7]	陈洪德, 曾允孚. 右江沉积盆地的性质及演化讨论[J]. 岩相古地理, 1990(1):28-37.
[8]	刘特民, 刘炳温, 陈国栋, 等. 南盘江盆地构造演化与油气保存区划分[J]. 天然气工业, 2001, 21(1):18-23.
[9]	梅冥相, 马永生, 戴少武, 等. 南盘江盆地晚古生代盆地充填序列特征及生储盖组合划分[J]. 现代地质, 2001, 15(1):74-82.
[10]	滇黔桂石油地质志编写组. 中国石油地质志卷十一滇黔桂油气区[M]. 北京: 石油工业出版社, 1992: 27-212.
[11]	广西壮族自治区地质矿产局. 广西壮族自治区区域地质志[M]. 北京: 地质出版社, 1985: 5-732.
[12]	贵州省地质矿产局. 贵州省区域地质志[M]. 北京: 地质出版社, 1987: 52-468.
[13]	云南省地质矿产局. 云南省区域地质志[M]. 北京: 地质出版社, 1990: 1-546.
[14]	湖南省地质矿产局. 湖南省区域地质志[M]. 北京: 地质出版社, 1988: 10-626.
[15]	广东省地质矿产局. 广东省区域地质志[M]. 北京: 地质出版社, 1988:10-829.
[16]	王约, 陈洪德, 田景春, 等. 黔南独山下、中泥盆统层序地层及界线讨论[J]. 矿物岩石, 1998, 18(2): 40-46.
[17]	梅冥相, 李仲远. 滇黔桂地区晚古生代至三叠纪层序地层序列及沉积盆地演化[J]. 现代地质, 2004, 18(4): 555-563.
[18]	史晓颖, 侯宇安, 帅开业. 桂西南晚古生代深水相地层序列及沉积演化[J]. 地学前缘, 2006, 13(6):153-170.
[19]	曾允孚. 华南右江盆地沉积构造演化[M]. 北京: 地质出版社, 1993:1-102.
[20]	曾允孚, 刘文均, 陈洪德, 等. 华南右江复合盆地的沉积构造演化[J]. 地质学报, 1995, 69(2):113-124.
[21]	叶造军, 施继锡, 胡瑞忠. 贵州大厂锑矿有机质与有机成矿作用[J]. 矿物学报, 1997, 17(3):310-315.
[22]	刘建明, 叶杰, 刘家军, 等. 论我国微细浸染型金矿床与沉积盆地演化的关系——以右江盆地为例[J]. 矿床地质, 2001, 20(4):367-377.
[23]	王国芝, 胡瑞忠, 苏文超. 黔西南晴隆锑矿萤石对成矿流体的地球化学限定[J]. 矿床地质, 2002, 21(增刊): 1028-1030.
[24]	顾雪祥, 李葆华, 徐仕海, 等. 右江盆地含油气成矿流体性质及其成藏-成矿作用[J]. 地学前缘, 2007, 14(5):133-145.
[25]	李容森, 陆刚, 潘艺文, 等. 桂西土湖锰矿区泥盆系中的陡崖式假不整合构造[J]. 桂林工学院学报, 2008, 28(4): 449-457.
[26]	王雁, 王嵩, 邓学能. 南盘江盆地优质沉积锰矿成矿条件和成矿预测[J]. 重庆科技学院学报(自然科学版), 2012, 14(6):23-26.
[27]	彭仕华. 文山广南县老龙锰矿地质特征及找矿标志[J]. 云南地质, 2014, 33(3):340-345.
[28]	李社宏, 苑鸿庆, 裴秋明, 等. 广西荣华锰矿床地质特征及发现意义[J]. 现代地质, 2015, 29(4): 912-921.
[29]	CURTIS J B. Fractured shale-gas systems[J]. AAPG Bulletin, 2002, 86(11):1921-1938.
[30]	李欣, 段胜楷, 孙扬, 等. 美国页岩气勘探开发最新进展[J]. 天然气工业, 2011, 31(4):124-126.
[31]	李建忠, 董大忠, 陈更生, 等. 中国页岩气资源前景与战略地位[J]. 天然气工业, 2009, 29(5): 11-16.
[32]	周洪庆. 贵阳乌当地区的旧司组与祥摆组[J]. 贵州工业大学学报, 1998, 27(4):48-54.
[33]	邝国敦, 李家骧, 钟铿, 等. 广西的石炭系[M]. 武汉: 中国地质大学出版社, 1999:17-58.
[34]	HUANG H, DU Y, YANG J, et al. Geochemistry of the Late Paleozoic cherts in the Youjiang Basin: Implications for the basin evolution[J]. Journal of Palaeogeography, 2013, 2(4): 402-421.
[35]	杨怀宇, 陈世悦, 郝晓良, 等. 南盘江坳陷晚古生代隆林孤立台地沉积特征与演化阶段[J]. 中国地质, 2010, 37(6):1638-1646.
[36]	CAPLAN M L, BUSTIN R M. Palaeoenvironmental and palae-oceanographic controls on black, laminated mudrock deposition: example from Devonian-Carboniferous strata, Alberta, Canada[J]. Sedimentary Geology, 2001, 145(1/2):45-72. DOI URL
[37]	KNAPP L J, MCMILLAN J M, HARRIS N B. A depositional model for organic-rich Duvernay Formation mudstones[J]. Sedimentary Geology, 2017, 347(1):160-182. DOI URL
[38]	THOMAS J, BARRY M J. Trace-metal covariation as a guide to water-mass conditions in ancient anoxic marine environments[J]. Geosphere, 2008, 5(4):872-887.
[39]	AHMED C. Petroleum system attributes of the Bossier Shale of East Texas and Barnett Shale of North-Central Texas: evolving ideas and their impact on shale and tight sand gas resource assessment[J]. Gulf Coast Association of Geological Societies Tran-sactions, 2006, 56:139-149.
[40]	ROBERT G, STEPHEN C. Mississippian Barnett Shale: Lithofacies and depositional setting of a deep-water shale-gas succession in the Fort Worth Basin, Texas[J]. AAPG Bulletin, 2007, 91(4): 579-601. DOI URL