鸡西盆地早白垩世城子河组和穆棱组物源分析
摘要
充分利用研究区的野外露头,特别是露头所显示的砾石排列方向和各种层理构造、地震资料、岩芯重矿物资料,系统分析了能够指示物源方向的4种参数—古水流方向,地震反射特征、重矿物稳定系数及组合分异特征、鸡西盆地早白垩世沉积特征,结果表明,这4种参数的匹配情况良好,总体显示城子河组时期盆地大致存在西部和东南部两个方向的物源,其中西部物源为主要物源区,分别从西北、西部以及西南3个方向供给盆地沉积物,东南部物源区为次要物源区,影响范围较小;穆棱组时期基本继承了城子河组时期的物源体系,只是源区相对后退,反映出从城子河组到穆棱组为水进和湖盆范围变大的过程,东南部物源的影响范围较城子河组时期变大。利用重矿物组合特征进行源区对比,认为盆地西部物源区为小兴安岭—张广才岭造山带,盆地东南部物源来自延吉褶皱带。
The field outcrops,especially the arraying direction of gravel and various bedding structures revealed by the outcrops,seismic data,core and heavy mineral data have been fully used to analyze the four key parameters that indicate the paleo-provenance direction,which include paleocurrent directions,structural features of seismic reflection,stability coefficient,differentiation characteristics of heavy mineral assemblage and the sedimentary characteristics of Jixi basin.Comprehensive studies show that the four parameters match well.There were mainly two provenances located in the west and southeast of the basin,respectively,in Chengzihe Formation.The west provenance was the main one,which provided sediments from the northwest,west and southwest to Jixi basin,and gradually headed east while divided into two branches at Hengshan uplift,entered the south and north part of the basin,respectively.After analyzing depositional system of heavy minerals and comparing the types of circumbasin parent rock,west provenance was thought to be primarily from the orogenic belt of Xiaoxingan-Zhangguangcai Range.Progradation configuration in the seismic profiles pointed out that upon the southeast of the basin there existed another subordinate provenance with less influence,which was considered to be the secondary provenance.During the period of Muling Formation,the paleocurrent characteristics revealed that the main traits formed in Chengzihe Formation were mostly inherited,i.e.the basin still had two separate provenances,but the provenances relatively retreated,showing transgression from Chengzihe to Muling Formation,meanwhile,the range of the lake basin became larger.The southwest provenance had a bigger impact area compared with Chengzihe Formation.The features of heavy mineral assemblage reflected that the types of mother rock from the west part of the basin were consistent with orogenic belt of Xiaoxingan-Zhangguangcai Range,which indicated that the west provenance mainly came from the aforementioned orogenic belt,while the mother rock types from southeast site were consistent with Yanji fold belt,illustrating that southeast provenance mainly came from it,gradually augmented its influence on development of Jixi basin from Chengzihe Formation to Muling Formation.
The field outcrops,especially the arraying direction of gravel and various bedding structures revealed by the outcrops,seismic data,core and heavy mineral data have been fully used to analyze the four key parameters that indicate the paleo-provenance direction,which include paleocurrent directions,structural features of seismic reflection,stability coefficient,differentiation characteristics of heavy mineral assemblage and the sedimentary characteristics of Jixi basin.Comprehensive studies show that the four parameters match well.There were mainly two provenances located in the west and southeast of the basin,respectively,in Chengzihe Formation.The west provenance was the main one,which provided sediments from the northwest,west and southwest to Jixi basin,and gradually headed east while divided into two branches at Hengshan uplift,entered the south and north part of the basin,respectively.After analyzing depositional system of heavy minerals and comparing the types of circumbasin parent rock,west provenance was thought to be primarily from the orogenic belt of Xiaoxingan-Zhangguangcai Range.Progradation configuration in the seismic profiles pointed out that upon the southeast of the basin there existed another subordinate provenance with less influence,which was considered to be the secondary provenance.During the period of Muling Formation,the paleocurrent characteristics revealed that the main traits formed in Chengzihe Formation were mostly inherited,i.e.the basin still had two separate provenances,but the provenances relatively retreated,showing transgression from Chengzihe to Muling Formation,meanwhile,the range of the lake basin became larger.The southwest provenance had a bigger impact area compared with Chengzihe Formation.The features of heavy mineral assemblage reflected that the types of mother rock from the west part of the basin were consistent with orogenic belt of Xiaoxingan-Zhangguangcai Range,which indicated that the west provenance mainly came from the aforementioned orogenic belt,while the mother rock types from southeast site were consistent with Yanji fold belt,illustrating that southeast provenance mainly came from it,gradually augmented its influence on development of Jixi basin from Chengzihe Formation to Muling Formation.
引文
1刘燕戌.勃利盆地和鸡西盆地的构造特征及油气远景研究[D].长春:吉林大学,2009[Liu Yanshu.Study of structural characteris-tics and oil-gas perspective in Boli-Jixi basin[D].Changchun:Jilin U-niversity,2009]
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3王杰.鸡西盆地早白垩世沉积特征及物源分析[D].长春:吉林大学,2007[Wang Jie.The Early Cretaceous sedimentary characteristicsand analysis of the provenances in Jixi basin[D].Changchun:Jilin U-niversity,2007]
4和钟铧,刘招君,张峰.重矿物在盆地分析中的应用研究进展[J].地质科技情报,2001,20(4):29-32[He Zhonghua,Liu Zhao-jun,Zhang Feng.Latest progress of heavy mineral research in the basinanalysis[J].Geological Science and Technology Information,2001,20(4):29-32]
5赵红格,刘池洋.物源分析方法及研究进展[J].沉积学报,2003,2(13):409-410[Zhao Hongge,Liu Chiyang.Approaches and pros-pects of provenance analysis[J].Acta Sedimentologica Sinica,2003,2(13):409-410]
6白云风,王振升,韦阿娟,等.黄骅坳陷东营组重矿物时空展布特征及物源体系分析[J].大庆石油地质与开发,2008,27(2):39-42[Bai Yunfeng,Wang Zhensheng,Wei Ajuan,et al.Time and spacedistribution characteristics and material resource system of heavy miner-als in Dongying Formation of Huanghua Depression[J].Petroleum Ge-ology&Oilfield Development in Daqing,2008,27(2):39-42]
7张元,郭翔,刘宏彦,等.三塘湖盆地马朗地区重矿物特征及物源分析[J].中外能源,2007,12:48-51[Zhang Yuan,Guo Xiang,Liu Hongyan,et al.Analysis for heavy mineral combination character-istics and detritus sources in Malang Depression of Santanghu basin[J].Sino-Global Energy,2007,12:48-51]
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9裴蒂庄(译).沉积岩[M].北京:石油工业出版社,1981[PeiDizhuang.Sedimentary Rock[M].Beijing:Petroleum Industry Pub-lishing House,1981]
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11 Morton A C.Influences of provenance and diagenesis on detrital gar-net suite in the Forties sandstone,Paleocene,central North Sea[J].Journal of Sedimentary Petrology,1987,57:1027-1032
12 Dill H G.Can REE Pattern,U-Th variation be used as a tool to deter-mine the origin of apatite in clastic rocks?[J].Sedimentary Geology,1994,92(3,4):175-196
13李锦轶,牛宝贵,宋彪,等.长白山北段地壳的形成与演化[M].北京:地质出版社,1999:110-114[Li Jinyi,Niu Baogui,Song Bi-ao,et al.The Formation and Evolution of the North Crust of ChangbaiMountain[M].Beijing:Geological Publishing House,1999:110-114]
14黑龙江省地质矿产局.黑龙江省区域地质志[M].北京:地质出版社,1993[Administration Bureau of Geology&Mineral Resourcesof Heilongjiang Province.Regional Geology of Heilongjiang Province[M].Beijing:Geological Publishing House,1993]
15张洪武,王泽利,李明哲.吉林东部延吉地区中生代火山岩地球化学特征[J].世界地质,1998,17(2):6-11[Zhang Hongwu,Wang Zeli,Li Mingzhe.Geochemical characteristic of Mesozoic vol-canic province rock in Yanji Region,eastern Jilin Province[J].World Geology,1998,17(2):6-11]
2何玉平.黑龙江省东部早白垩世沉积特征与原型盆地恢复[D].长春:吉林大学,2006[He Yuping.The Early Cretaceous sedimentarycharacteristics and prototype basin restoration in eastern Heilongjiangprovince[D].Changchun:Jilin University,2006]
3王杰.鸡西盆地早白垩世沉积特征及物源分析[D].长春:吉林大学,2007[Wang Jie.The Early Cretaceous sedimentary characteristicsand analysis of the provenances in Jixi basin[D].Changchun:Jilin U-niversity,2007]
4和钟铧,刘招君,张峰.重矿物在盆地分析中的应用研究进展[J].地质科技情报,2001,20(4):29-32[He Zhonghua,Liu Zhao-jun,Zhang Feng.Latest progress of heavy mineral research in the basinanalysis[J].Geological Science and Technology Information,2001,20(4):29-32]
5赵红格,刘池洋.物源分析方法及研究进展[J].沉积学报,2003,2(13):409-410[Zhao Hongge,Liu Chiyang.Approaches and pros-pects of provenance analysis[J].Acta Sedimentologica Sinica,2003,2(13):409-410]
6白云风,王振升,韦阿娟,等.黄骅坳陷东营组重矿物时空展布特征及物源体系分析[J].大庆石油地质与开发,2008,27(2):39-42[Bai Yunfeng,Wang Zhensheng,Wei Ajuan,et al.Time and spacedistribution characteristics and material resource system of heavy miner-als in Dongying Formation of Huanghua Depression[J].Petroleum Ge-ology&Oilfield Development in Daqing,2008,27(2):39-42]
7张元,郭翔,刘宏彦,等.三塘湖盆地马朗地区重矿物特征及物源分析[J].中外能源,2007,12:48-51[Zhang Yuan,Guo Xiang,Liu Hongyan,et al.Analysis for heavy mineral combination character-istics and detritus sources in Malang Depression of Santanghu basin[J].Sino-Global Energy,2007,12:48-51]
8沈丽琪.沉积岩重矿物研究中的几个重要概念及其应用[J].中国科学:B辑,1985,1:70-78[Shen Liqi.Several important conceptsand their application in sedimentary heavy mineral studies[J].Sciencein China,1985,1:70-78]
9裴蒂庄(译).沉积岩[M].北京:石油工业出版社,1981[PeiDizhuang.Sedimentary Rock[M].Beijing:Petroleum Industry Pub-lishing House,1981]
10武法东,陆永潮,阮小燕.重矿物聚类分析在物源分析及地层对比中的应用——以东海陆架盆地西湖凹陷平湖地区为例[J].现代地质,1996,10(3):397-402[Wu Fadong,Lu Yongchao,RuanXiaoyan.Application of heavy minerals cluster analysis to study ofclastic sources and stratigraphic correlation[J].Geooscience,1996,10(3):397-402]
11 Morton A C.Influences of provenance and diagenesis on detrital gar-net suite in the Forties sandstone,Paleocene,central North Sea[J].Journal of Sedimentary Petrology,1987,57:1027-1032
12 Dill H G.Can REE Pattern,U-Th variation be used as a tool to deter-mine the origin of apatite in clastic rocks?[J].Sedimentary Geology,1994,92(3,4):175-196
13李锦轶,牛宝贵,宋彪,等.长白山北段地壳的形成与演化[M].北京:地质出版社,1999:110-114[Li Jinyi,Niu Baogui,Song Bi-ao,et al.The Formation and Evolution of the North Crust of ChangbaiMountain[M].Beijing:Geological Publishing House,1999:110-114]
14黑龙江省地质矿产局.黑龙江省区域地质志[M].北京:地质出版社,1993[Administration Bureau of Geology&Mineral Resourcesof Heilongjiang Province.Regional Geology of Heilongjiang Province[M].Beijing:Geological Publishing House,1993]
15张洪武,王泽利,李明哲.吉林东部延吉地区中生代火山岩地球化学特征[J].世界地质,1998,17(2):6-11[Zhang Hongwu,Wang Zeli,Li Mingzhe.Geochemical characteristic of Mesozoic vol-canic province rock in Yanji Region,eastern Jilin Province[J].World Geology,1998,17(2):6-11]
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