准东卡拉麦里造山带早石炭世碎屑岩锆石年龄、岩石学和地球化学特征及其地质意义

造山带沉积地质学是沉积地质学研究的一个重要方向，一直以来都是地质学研究的热点和前沿领域。准噶尔地区位于中亚造山带的南部，是研究中亚造山带形成和演化的天然实验室，也是国内外学者研究和关注的热点地区。本研究以准东地区卡拉麦里造山带早石炭世碎屑岩为研究对象，综合运用野外剖面调查和室内实验分析相结合的方法，研究早石炭世地层的沉积学特征、岩石学特征、锆石U-Pb年龄特征以及碎屑样品的元素组成特征。在此基础上，进一步研究早石炭世碎屑岩样品的源区性质和发育的构造背景。最终目标是建立早石炭世时期卡拉麦里造山带的盆山构造格局，并且探讨卡拉麦里洋的闭合时限和准噶尔盆地基底性质这些热点和难点问题。

The orogenic belt sedimentology is an important research field of the sedimentary geology, and is also a hotspot and frontier area of the geological research. The Junggar terrane is located at the southern of the Central Asian Orogenic Belt (CAOB). It is the natural laboratory of the CAOB formation and evolution research, and is also the popular place that have been attracted many attentions from scholars around the world. In this study, we focus on the Early Carboniferous clastic rocks in the Kalamaili Orogenic Belt, Eastern Junggar. By combining the field survey and indoor experiment analysis methods, the characteristics of sedimentary geology, petrography, detrital zircon U-Pb ages and element compositions of the Early Carboniferous rocks will be studied. On the basis of field and indoor experiment study, the provenance and tectonic settings of these clastic rocks will be analyzed. And finally, the basin-mountain tectonic pattern of the Kalamaili Orogenic Belt in the Early Carboniferous period will be established, and the hot and difficult problems of the Kalamaili Ocean close time and the Junggar Basin basement nature will also be discussed.