CAJ | 학술논문

基于大量文献资料, 系统研究了俄罗斯北极地区中生代的岩相古地理, 并简要分析了油气组合特征, 结合现有的勘探成果, 进行资源潜力分析. 三叠纪, 研究区以滨浅海相为主, 沉积岩岩性以火山岩十碎屑岩组合为主, 隆起剥蚀区主要分布在波罗的地盾及其东侧, 以及新地岛—乌拉尔褶皱带一线和东西伯利亚台地周缘的构造单元中; 侏罗纪, 研究区仍以滨浅海相为主, 沉积岩岩性以砂岩十泥岩组合为主, 东西伯利亚台地隆起剥蚀区面积增加; 早白垩世, 研究区滨浅海相仍占优势, 沉积岩岩性以砂岩十泥岩组合为主, 而隆起剥蚀区面积较侏罗纪增加了1/3, 鄂霍茨克地块—东西伯利亚海盆一线及周缘构造单元隆起成为隆起剥蚀区; 晚白垩世, 研究区主要为隆起剥蚀区, 滨浅海相次之, 美亚盆地开始形成, 沉积岩岩性以砂岩十泥岩组合为主, 新西伯利亚-楚科奇褶皱带隆升成为剥蚀区. 研究结果显示: (1) 岩性上, 中生界以砂岩十泥岩组合为主, 火山岩十碎屑岩组合、砾岩十砂岩十泥岩组合以及砂岩十泥岩十碳酸盐岩混积岩性组合次之; (2) 岩相上, 三叠系和侏罗系以滨浅海相为主, 早白垩世由于受新西伯利亚-楚科奇-阿拉斯加微板块与鄂霍茨克地块北缘碰撞作用影响, 隆起剥蚀区面积进一步增加, 晚白垩世隆起剥蚀区占优势; (3) 东巴伦支海侏罗系、西西伯利亚盆地北部海域的白垩系及喀拉海南部的白垩系和侏罗系, 此外还包括喀拉海北部的侏罗系均是重要的勘探目标区; 叶涅赛-哈坦加盆地、拉普捷夫海盆地和东西伯利亚海盆地是有勘探开发潜力的地区, 侏罗系和白垩系是最有利的层系.
기우대량문헌자료, 계통연구료아라사북겁지구중생대적암상고지리, 병간요분석료유기조합특정, 결합현유적감탐성과, 진행자원잠력분석. 삼첩기, 연구구이빈천해상위주, 침적암암성이화산암십쇄설암조합위주, 륭기박식구주요분포재파라적지순급기동측, 이급신지도—오랍이습추대일선화동서백리아태지주연적구조단원중; 주라기, 연구구잉이빈천해상위주, 침적암암성이사암십니암조합위주, 동서백리아태지륭기박식구면적증가; 조백성세, 연구구빈천해상잉점우세, 침적암암성이사암십니암조합위주, 이륭기박식구면적교주라기증가료1/3, 악곽자극지괴—동서백리아해분일선급주연구조단원륭기성위륭기박식구; 만백성세, 연구구주요위륭기박식구, 빈천해상차지, 미아분지개시형성, 침적암암성이사암십니암조합위주, 신서백리아-초과기습추대륭승성위박식구. 연구결과현시: (1) 암성상, 중생계이사암십니암조합위주, 화산암십쇄설암조합、 력암십사암십니암조합이급사암십니암십탄산염암혼적암성조합차지; (2) 암상상, 삼첩계화주라계이빈천해상위주, 조백성세유우수신서백리아-초과기-아랍사가미판괴여악곽자극지괴북연팽당작용영향, 륭기박식구면적진일보증가, 만백성세륭기박식구점우세; (3) 동파륜지해주라계、 서서백리아분지북부해역적백성계급객랍해남부적백성계화주라계, 차외환포괄객랍해북부적주라계균시중요적감탐목표구; 협열새-합탄가분지、 랍보첩부해분지화동서백리아해분지시유감탐개발잠력적지구, 주라계화백성계시최유리적층계.
Based on massive literature, the lithofacies and paleogeography of Mesozoic in Russian Arctic area are systematically studied, and the petroleum characteristics are briefly analyzed.Combined with the exploration results, the hydrocarbon potential is analyzed.In Triassic, most of the study region is littoral facies and neritic facies.Sediments are dominated by the combination of volcanic rock and clastic rock.Uplift-erosion facies mainly are distributed in the Aldan Shield and its east .The structure unit is around Novaya Zemlya-Ural Fold Belt and East Siberia Platform.In Jurassic, most of the study region is neritic facies.Sediments are dominated by the combinations of sand and mud.Uplift-erosion facies grew in the East Siberia Platform.During early Cre-taceous, neritic facies were distributed in the study region.Sediments are dominated by the combination of sand and mud.Uplift-erosion facies increased one third in Okhotsk Massif-East Siberian Sea Basin and the area a-round them.In late Cretaceous, most of the study region became uplift-erosion facies, neritic facies took the second place.Amerasian basin began to form.Sediments are dominated by the combination of sand and mud. Novo Sibirsko-Chukotka Fold Belt became uplift-erosion facies.The result shows that (1) Sand-mud combi-nation is the main lithologic features of Mesozoic.Volcanic rock and clastic rock combination, conglomerate-sand-mud combination and sand-mud -carbonate combination took the second place.(2) Paleogeography features of Triassic and Jurassic are mainly neritic facies.However, the uplift-erosion facies grew under the in-fluence of the collision between Novosibirsk-Hukchi Alaska microplate and the north Okhotsk crustal block in Early Cretaceous, hence the uplift-erosion facies dominated the research filed in Late Cretaceous.( 3 ) The East Barents Sea Basin Jurassic formation, the formation of north sea of West Siberian basin in Cretaceous, the formation of north of Kara sea in Cretaceous and Jurassic are important regions for hydrocarbon exploration. Yenisey-Khatanga Basin, Laptev Sea Basin and East Siberian Basin are also good places for oil exploration, especially in their Jurassic and Cretaceous formations.