东准噶尔纸房地区晚石炭世巴塔玛依内山组陆相火山-沉积体系特征  

THE CHARACTERISTICS OF SEDIMENTARY SYSTEM-CONTINENTAL FACIES VOLCANO IN LATER CARBONIFEROUS BATAMAYI GROUP,ZHI-FANG REGION,EAST JUNGGER

作　　者：朱志新[1] 李少贞[2] 李嵩龄[2] 

机构地区：[1]中国地质科学院地质矿产所,北京100037 [2]新疆地质矿产勘查开发局第一区域地质调查大队,新疆乌鲁木齐830011

出　　处：《新疆地质》2005年第1期14-18,共5页Xinjiang Geology

摘　　要：东准噶尔巴塔玛依内山组是典型陆相火山-沉积体系(盆地),主体由基性及中酸性火山熔岩组成,火山碎屑岩及火山碎屑沉积岩较少.通过对纸房地区晚石炭世巴塔玛依内山组陆相火山岩的岩石化学、地球化学特征进行系统研究,认为它属于造山期后固结初期,新陆壳裂谷向高原火山岩演化的同岩浆源、同沉积盆地、同火山作用的钙碱系列双峰式火山岩.The Ba-ta-ma-yi group in east Jungger is a typical continental facies volcano – sediment system (basin), the main part of the group is formed by basic and medium acidic lava. There are not mush pyroclastic rock (pyroclast) and pyroclastic sedimentary rock. According to the systematic study about the characteristics of continental facies volcanic chemistry, geochemistry in later Carboniferous Ba-ta-ma-yi group at Zhi-fang region, this group is calc-alkali volcanic rock, which is from comagmatic resource, supratenuous basin, and homogeneous volcanic movement, and which was consolidated during the late period of mountain-making movement at new continental shell rift-valley trend.

关 键 词：晚石炭世 东准噶尔 体系特征 火山碎屑沉积岩 塔 地球化学特征 双峰式火山岩 火山碎屑岩 陆相火山岩 沉积体系 火山熔岩 岩石化学 系统研究 造山期后 沉积盆地 火山作用 中酸性 岩浆源 基性 演化 高原 裂谷 陆壳 

分 类 号：P534.45[天文地球—古生物学与地层学]