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我国东北部幔源包体中稀有气体丰度和同位素组成
徐胜; 刘丛强
2002
Source Publication科学通报
ISSN0023-074X
Volume47Issue:2Pages:141-146
Abstract报道了辽宁宽甸、吉林辉南和河北汉诺坝新生代玄武岩中幔源包体的稀有气体丰度和同位素组成. 与大洋中脊玄武岩(MORB)和其他地区相比, 我国东北部幔源包体具有较低的稀有气体丰度、类似或低于MORB的3He/4He比值、低于MORB的40Ar/36Ar比值、类似大气的38Ar/36Ar和Ne-Kr-Xe同位素组成等特征. 这些结果表明我国东北部岩石圈地幔的不均一性, 即存在类似于宽甸的亏损地幔和类似于辉南地区的富集地幔. 3个地区低40Ar/36Ar比值可能暗示着岩石圈地幔中随板块消减而加入了大气稀有气体成分.
metadata_83中国科学院地球化学研究所
Keyword幔源包体 稀有气体丰度和同位素组成 富集地幔 中国东北部
Indexed BySCI
Language中文
Document Type期刊论文
Identifierhttp://ir.gyig.ac.cn/handle/352002/2313
Collection环境地球化学国家重点实验室_环境地球化学国家重点实验室_期刊论文
环境地球化学国家重点实验室
Recommended Citation
GB/T 7714
徐胜,刘丛强. 我国东北部幔源包体中稀有气体丰度和同位素组成[J]. 科学通报,2002,47(2):141-146.
APA 徐胜,&刘丛强.(2002).我国东北部幔源包体中稀有气体丰度和同位素组成.科学通报,47(2),141-146.
MLA 徐胜,et al."我国东北部幔源包体中稀有气体丰度和同位素组成".科学通报 47.2(2002):141-146.
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