CAJ | 학술논문

内蒙古阿巴嘎旗北部位于西伯利亚板块东南大陆边缘晚古生代陆缘增生带,地处二连?贺根山板块对接带的西北侧.通过对三类侵入岩体样品主微量元素地球化学特征的分析,结果显示正长花岗岩体(包括中细粒正长花岗岩、条纹正长花岗岩、钠长正长花岗岩)和碱长花岗岩体(中粗粒钠闪正长花岗岩、钠闪条纹正长花岗岩)都具有A型花岗岩的特征,碎裂岩化花岗斑岩岩体兼具A型和S型花岗岩的特征.三类侵入岩体岩浆成因与陆壳变杂砂岩部分熔融有关,均产于后造山构造环境.
내몽고아파알기북부위우서백리아판괴동남대륙변연만고생대륙연증생대,지처이련?하근산판괴대접대적서북측.통과대삼류침입암체양품주미량원소지구화학특정적분석,결과현시정장화강암체(포괄중세립정장화강암、조문정장화강암、납장정장화강암)화감장화강암체(중조립납섬정장화강암、납섬조문정장화강암)도구유A형화강암적특정,쇄렬암화화강반암암체겸구A형화S형화강암적특정.삼류침입암체암장성인여륙각변잡사암부분용융유관,균산우후조산구조배경.
@@@@The northern Abagaqi is located in the northwest of the suture belt between Erlian and Hegenshan Plate, which is a part of the accretion zone of the late paleozoic continental margin on the southeast continental margin of the Siberian Plate. Sampling of three rock types of the northern Abagaqi was conducted to analyze the content of major and trace elements, and the results showed that syenite granite mass (including the fine-grained syenite granite, stripe syenite granite, albite syenogranite) and alkali feldspar granite mass(including coarse-grained riebeckite syenite granite, riebeckite stripe syenogranite) have the characteristics of the A-type granite, granite porphyry mass of both A and S-type granites. The magmatic origin of the three types of intrusive bodies has a relationship with metagreywacke patiral melting of the continental crust, which was produced in the post-orogenic tectonic environment.