舒兰盆地的走滑构造作用与聚煤模式  

Strike-Slip Tectonic Process and Coal Accumulation Mode

作　　者：何跃兴[1] 孙恒战[1] 王丽伟[1] 孙世芳[1] 

机构地区：[1]吉林省煤田地质勘察设计研究院,吉林长春130062

出　　处：《中国煤炭地质》2009年第A02期4-5,53,共3页Coal Geology of China

摘　　要：舒兰盆地位于依兰—伊通裂谷中段,为半地堑盆地,依兰—伊通裂谷为盆地的边缘断裂,控制了盆内白垩系及新近系含煤地层沉积。盆内存在多种与右行走滑相关的构造形迹,如雁列正断层带,"梳状"构造和花状构造等。分析认为舒兰盆地属走滑拉张盆地,沉积和沉降中心偏向于主干断裂一侧,为冲积扇和扇三角洲沉积,盆地中心以湖泊沉积和浊流沉积为主,扇三角洲前缘是聚煤的良好场所。The Shulan Basin is located in the middle sector of Yilan-Yitong rift, and is a semi-graben basin. The rift belongs to basin margin fracture, and controls Cretaceous and Neogene systems coal-bearing sediments in the basin. Multiple structural features interrelated to dextral strike-slips have existed, such as en echelon normal fault zones, comb and flower structures etc. The analysis considered that, Shulan Basin is a strike-slip extensional basin, sedimentary and subsidence center bias toward major fault side, belongs to alluvial fan and fan delta deposits, in the basin center is mainly lacustrine and turbidity deposits, fan delta front is favorable site for coal accumulation.

关 键 词：舒兰盆地 走滑构造 沉积特征 聚煤模式 

分 类 号：P618.110.2[天文地球—矿床学]