CAJ | 학술논문

嫩江-黑河构造带地处松嫩地块与兴安地块的结合部位，一直以来是业内学者关注的焦点。在构造带内内蒙古莫力达瓦旗哈达阳一带野外实地调研过程中，发现一套变质变形程度与周围地质体差异很大的地层。岩石组合为绿泥石白云母构造片岩、二云母微晶片岩、黝帘白云糜棱片岩等。采用LA-ICP-MS技术获得的绿泥石白云母构造片岩中锆石U-Pb年龄为413.9Ma±2.7Ma。通过分析区域地质演化历史及不同时代地质体特征，认为沿红山梁-哈达阳-依克特一带存在一条构造混杂堆积岩带，这套强变形岩石应为构造混杂岩带的一部分，其原岩形成时代为早泥盆世，后期构造定位应与嫩江-黑河构造带最后于早石炭世末拼合作用有关。
눈강-흑하구조대지처송눈지괴여흥안지괴적결합부위，일직이래시업내학자관주적초점。재구조대내내몽고막력체와기합체양일대야외실지조연과정중，발현일투변질변형정도여주위지질체차이흔대적지층。암석조합위록니석백운모구조편암、이운모미정편암、유렴백운미릉편암등。채용LA-ICP-MS기술획득적록니석백운모구조편암중고석U-Pb년령위413.9Ma±2.7Ma。통과분석구역지질연화역사급불동시대지질체특정，인위연홍산량-합체양-의극특일대존재일조구조혼잡퇴적암대，저투강변형암석응위구조혼잡암대적일부분，기원암형성시대위조니분세，후기구조정위응여눈강-흑하구조대최후우조석탄세말병합작용유관。
Located at the junction of Songnen massif with Xingan massif, the Nenjiang-Heihe tectonic belt has long been the focus of geologist's attention. During the field work in Nenjiang area, the authors found a new suite of strata whose deformation and meta-morphism are greatly different from those of surrounding geological bodies. Rocks exhibit such combinations as chlorite-muscovite tectonic schist, biotite-muscovite microlite schist and zoisite-muscovite mylonite schist. Geochronological research was conducted on chlorite-muscovite tectonic schist, which yielded a zircon U-Pb(LA-ICP-MS) age of 413.9Ma±2.7Ma. Based on the analysis of regional geological evolution history and geological characteristics of different ages, the authors hold that there is an tectonic mélange belt along Hongshanliang-Hadayang-Yikette area. This suite of strongly deformed rocks should be part of the tectonic melange belt, and the original rock was formed in the Early Devonian. The late structural location was related to the collage effect of Nenjiang-Heihe tectonic belt which occurred in late Early Carboniferous period.