桂林理工大学学报2015，Vol.35Issue(3)：452-465,14.DOI:10.3969/j.issn.1674-9057.2015.03.005
俄罗斯北极地区中生代岩相古地理特征及油气资源潜力分析
Evolution of lithofacies paleogeography of Mesozoic and hydrocarbon resources potential analysis in Russian Arctic area
摘要
Abstract
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.关键词
俄罗斯北极/中生代/岩相古地理/储盖组合/有利区带/油气资源Key words
Russian Arctic/Mesozoic/lithofacies paleogeography/storage and cover combination/favorable areas/hydrocarbon resources分类
天文与地球科学引用本文复制引用
刘恩然,辛仁臣,何虎庄..俄罗斯北极地区中生代岩相古地理特征及油气资源潜力分析[J].桂林理工大学学报,2015,35(3):452-465,14.基金项目
国家科技重大专项课题 (2011ZX05028-003) （2011ZX05028-003）
