CAJ | 학술논문

通过系统统计新疆准噶尔北部地区主要岩矿石磁性、密度参数，重点研究了该区航空磁场、区域重力场分布规律。按照布格重力和航磁异常形态，准噶尔地区可以划分为三个布格重力异常单元和五个航磁异常单元，认为北准噶尔地区的布格重力异常和航磁异常揭示该区可能为一陆缘增生杂岩带。该增生杂岩带形态上呈“锲形”，其北缘位于阿尔泰–富蕴断裂一带，西部与哈萨克斯坦板块毗邻，南部边缘为阿尔曼太蛇绿混杂岩带。该增生杂岩带由多个增生单元“拼贴”而成，具北东向凸起特点。阿尔泰–阿尔金地学断面揭示了增生杂岩带深部俯冲形态。本次研究成果为研究新疆北部与邻区大地构造提供了新的依据。
통과계통통계신강준갈이북부지구주요암광석자성、밀도삼수，중점연구료해구항공자장、구역중력장분포규률。안조포격중력화항자이상형태，준갈이지구가이화분위삼개포격중력이상단원화오개항자이상단원，인위북준갈이지구적포격중력이상화항자이상게시해구가능위일륙연증생잡암대。해증생잡암대형태상정“계형”，기북연위우아이태–부온단렬일대，서부여합살극사탄판괴비린，남부변연위아이만태사록혼잡암대。해증생잡암대유다개증생단원“병첩”이성，구북동향철기특점。아이태–아이금지학단면게시료증생잡암대심부부충형태。본차연구성과위연구신강북부여린구대지구조제공료신적의거。
The distribution of regional gravitational fields and aeromagnetic fields are analyzed through systematic statistics of the magnetic and density parameters of the main rocks and ores from North Junggar in Xinjiang. The northern Junggar can be divided into three Bouguer gravity anomaly units and five aeromagnetic anomaly districts. The Bouguer and aeromagnetic anomaly belts indicate the presence of accretionary complex zone at the active continental margin in northern Junggar. The complex is wedge-shaped and is limited by the Altay-Fuyun fault zone at the north, the east margin of Kazakhstan Plate at the west, and the Almantaio phiolitic melange belt at the south. This accretionary complex zone consists of several N-E trending accretionary units. The deep-geophysical sounding profile of the Altay region indicates that the subduction resulted in the formation of the accretionary complex zone.