CAJ | 학술논문

区域地质及野外地质剖面研究表明，新疆阿尔泰南缘康布铁堡组的东、中、西3段岩石组合和变质变形及含矿性等方面存在显著差异，有必要对其重新划分厘定。分布于西段克兰及麦兹盆地的康布铁堡组（D1 k），通过古生物化石及年代学资料确定其时代为早泥盆世，实测地质剖面显示为一套浅变质酸性火山岩及火山碎屑岩夹正常碎屑岩，自下而上可划分为4个岩性段：笫1岩性段（D1ka）以云母片岩为主；第2岩性段（D1kb）为钙质片岩、钙质砂岩、变凝灰质砂岩；笫3岩性段（D1 kc ）主要为变酸性流纹岩、凝灰岩；第4岩性段（D1 kd ）以变流纹岩、流纹质火山碎屑岩为主。而分布于东段青河地区、中段（南部）富蕴地区的康布铁堡组，实为一套混合岩化变质岩系，其时代缺少年代学资料限制，应从康布铁堡组中解体出去，依据进一步变质作用及年代学资料重新划分、命名。
구역지질급야외지질부면연구표명，신강아이태남연강포철보조적동、중、서3단암석조합화변질변형급함광성등방면존재현저차이，유필요대기중신화분전정。분포우서단극란급맥자분지적강포철보조（D1 k），통과고생물화석급년대학자료학정기시대위조니분세，실측지질부면현시위일투천변질산성화산암급화산쇄설암협정상쇄설암，자하이상가화분위4개암성단：자1암성단（D1ka）이운모편암위주；제2암성단（D1kb）위개질편암、개질사암、변응회질사암；자3암성단（D1 kc ）주요위변산성류문암、응회암；제4암성단（D1 kd ）이변류문암、류문질화산쇄설암위주。이분포우동단청하지구、중단（남부）부온지구적강포철보조，실위일투혼합암화변질암계，기시대결소년대학자료한제，응종강포철보조중해체출거，의거진일보변질작용급년대학자료중신화분、명명。
The Kangbutiebao Formation is distributed in the southern margin of Altay,Xinjiang.Based on the regional geology and geological section,this study holds the idea that the Kangbutiebao Formation should be re-determinated on account of the obvious differences in rock assemblages,metamorphic-deformation and ore-bear-ing potential among the eastern,middle and western parts.The age of Kangbutiebao Formation(D1 k)which is located in Kelan and Maizi Basin is of Early Devonian according to the fossils and geochronology.Field measur-ing geological sections reveal that the D1 k include acid volcanic rocks and volcaniclastic rocks interbedded nor-mal clastic rocks (low-grade metamorphic).It can be divided into four lithologic units from bottom to top:the first lithologic unit (D1ka)is mainly of micaschist;the second (D1kb)contains calcareous schists,calcareous sandstones and meta-tuffaceous sandstones;the third (D1 kc )chiefly comprises meta-acid rhyolite and tuff;and the fourth (D1kd)is mainly meta-rhyolite and meta-rhyolitic pyroclastic rocks.But the ‘Kangbutiebao Forma-tion’in Qinghe region (the eastern part)and Fuyun region (the southern section of the middle part)consists of high-grade metamorphic and migmatization rocks and is less of geochronology data,and it should be disintegra-ted from the D1 k and be re-determinated and be renamed after the further study of metamorphism and geochro-nology in this area.