| 佳疙瘩组变碎屑岩地球化学特征及古构造环境 |
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| 引用本文： | 吕志成,段国正,郝立波,李殿超.佳疙瘩组变碎屑岩地球化学特征及古构造环境[J].吉林大学学报(地球科学版),2002,32(2):111-115. |
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| 作者姓名： | 吕志成 段国正 郝立波 李殿超 |
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| 作者单位： | 1. 中国科学院地球化学研究所矿床地球化学开放实验室,贵州,贵阳,550002；吉林大学地球探测科学与技术学院,吉林，长春,130026
2. 吉林大学地球探测科学与技术学院,吉林，长春,130026 |
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| 基金项目： | 国土资源部定向科研项目;地科定95-01; |
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| 摘 要： | 内蒙古额尔古纳地区佳疙瘩组变碎屑岩的主量元素以富集SiO2、Al2O3、K2O、Na2O等为特征，微量元素以富含高场强不相容元素为特征。岩石的地球化学特征表明其原岩为一套陆源碎屑岩。沉积环境为被动大陆边缘。沉积盆地性质为被动大陆边缘拉张（早期）和弧后拉张（后期）两种深部背景下的拉张断陷盆地。而基性岩浆的侵入活动代表这一过程的持续和进一步发展。
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| 关 键 词： | 变碎屑岩 地球化学 古构造环境 佳疙瘩组 额尔古纳地区 变质岩 |
| 文章编号： | 1671-5888(2002)02-0111-05 |
| 修稿时间： | 2001年9月4日 |
GEOCHEMISTRY AND TECTONIC SETING OF METAMORPHIC DETRITAL ROCK OF JIAGEDA GROUP |
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| LU Zhi cheng ,DUAN Guo zheng ,HAO Li bo ,LI Dian chao.GEOCHEMISTRY AND TECTONIC SETING OF METAMORPHIC DETRITAL ROCK OF JIAGEDA GROUP[J].Journal of Jilin Unviersity:Earth Science Edition,2002,32(2):111-115. |
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| Authors: | LU Zhi cheng DUAN Guo zheng HAO Li bo LI Dian chao |
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| Institution: | LU Zhi cheng 1,2,DUAN Guo zheng 2,HAO Li bo 2,LI Dian chao 2 |
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| Abstract: | The major elements of metamorphic detrital rock of Jiageda Group, E'erguna region of Inner Mongolia, are characterized by enrichment in SiO 2 , Al 2 O 3 , K 2 O and Na 2 O, and the trace elements are characterized by enrichment in HFSE. The geochemical characterizes of metamorphic detrital rock show their source rocks were terrigenous detrital rocks . The sediment environment was in the passive continental margin. The sedimentation basin was extention trough basin which was controlled by tension of early passive continental margin and later back arc. The basic rock intrusive activity implied continuation and development of the tension process. |
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| Keywords: | metamorphic detrital rock geochemistry and tectonic setting Jiageda group E'erguna region |
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