新疆英吉沙南克孜勒陶组沉积特征及沉积相  

THE SEDIMENTARY CHARACTERISTICS AND SEDIMENTARY FACIES OF MIDDLE-DEVONIAN KEZILETAO FORMATION IN AKEBAXIMAZHAER AREA OF SOUTH YINGJISHA, XINJIANG

作　　者：李少娟[1] 冯新疆[1] 张红喜[1] 袁文贤[2] 

机构地区：[1]新疆维吾尔自治区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 [2]中国石油新疆油田分公司勘探开发研究院地球物理研究所,新疆乌鲁木齐830011

出　　处：《新疆地质》2004年第2期155-159,共5页Xinjiang Geology

摘　　要：英吉沙南阿克巴西麻扎尔一带的中泥盆统克孜勒陶组,下未见底,与上覆上泥盆统考库亚组之间呈整合接触.从剖面特征分析,自下而上可划分出海岸相及混积陆棚相(包括生物礁、风暴岩),为一典型的进积沉积体系,各相段中沉积特征明显,沉积构造十分发育,特别是上部具有点礁性质的生物礁不仅礁核、礁翼清晰,而且定殖、拓殖、泛殖、统殖等4阶段特征明显,该剖面为研究滨浅海相沉积的良好剖面。The lower end of the middle-Devonian Keziletao fonnation in Akebaximazhaer region of Southern Yingjisha didn't crop out and the upper-Devonian was conformable contacted u(?)on the the middle-Devonian. Based on the analysis to section characteristics, a typical progradation sedimentary system from seashore facies to melange shelf facies(including bioherm and tempestite) was recognized. The sedimentary characteristics of every facies is distinct and the sedimentary structure is well developed. In the upper section, bioherm is of dot reef features and the reef core and reef flank were well preserved. Four stages characteristics including stationary multiply, ex(?)ensive multiply, wide multiply and uniform multiply are clearly observed. This section is good for researching shallow sea facies sediment.

关 键 词：沉积特征 沉积相 生物礁 浅海相 沉积构造 沉积体系 海岸 吉沙 风暴 划分 

分 类 号：P539.2[天文地球—古生物学与地层学]