尚义葛令夭高铬花岗岩(Closepet-like)——新太古代古缝合带的新证据

CORC > 北京大学 > 地球与空间科学学院

	尚义葛令夭高铬花岗岩(Closepet-like)——新太古代古缝合带的新证据; Gelingyao high-Cr granite (Closepet-like) in Shangyi: New evidence of Late-Archean suture zone
	王仁民 ; 李孟江 ; 程素华
刊名	岩石学报
	2012
关键词	新太古代低Al2O3 TTG 高Cr花岗岩(Closepet-like) 古缝合带华北克拉通 Late-Archaean Low Al2O3 TTG High-Cr granite (Closepet-like) Ancient suture North China Craton
英文摘要	在华北克拉通北部,太古代麻粒岩古陆核与陆外沉积盆地(红旗营子群)之间已经厘定出一个晚太古代的古洋壳残片(Wang et al.,2009)。此残片南北两侧又发现了低Al2O3型TTG岩体(2512±19Ma)、富钾高铬的深熔花岗岩(Closepet-like),含Cr97×10-6～308×10-6,以及含大量密集的煌斑岩脉的含石英的二长岩(Sanukitoid-like)等三类在成因上与俯冲带密切相关的岩体。低Al2O3型TTG是在角闪麻粒岩亚相条件下由俯冲中的滑片部分熔融所生成。深熔花岗岩是TTG再熔融的产物,而它们的基性化演化和Cr的增高是幔源岩浆与富钾深熔花岗岩经复杂的岩浆混合和交代改...; At northern of North China Craton, between Archean granulite nucleus and extra-continental sedimentary basin (hongqiyingzi Group), a Neoachaean ancient oceanic crust relict has been recognized (Wang et al., 2009). The low Al2O3 TTG rocks (2512 +/- 19Ma), the anatectic granites (Closepet-like) with rich K and high Cr (97 x 10(-6) similar to 308 x 10(-6)), and quartz monzonites (Sanukitoid-like) with a large number of lamprophyre dykes have been discovered on both sides of the relict, they are closely related to subduction.. The low Al2O3 TTG rocks were generated by partial melting of subducting slab under an amphibole-granulite subfacies condition. Anatectic granites were products of remelting of the TUG rocks and their basic development with increase in Cr were the results of complex mixed and metasomatism between mantle-derived magma and K-enriched anatectic granites.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000303970100002&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; SCI(E); 中文核心期刊要目总览(PKU); 中国科技核心期刊(ISTIC); 中国科学引文数据库(CSCD); 2; 04; 1037-1043; 28
语种	中文
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/49499]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	王仁民,李孟江,程素华. 尚义葛令夭高铬花岗岩(Closepet-like)——新太古代古缝合带的新证据, Gelingyao high-Cr granite (Closepet-like) in Shangyi: New evidence of Late-Archean suture zone[J]. 岩石学报,2012.
APA	王仁民,李孟江,&程素华.(2012).尚义葛令夭高铬花岗岩(Closepet-like)——新太古代古缝合带的新证据.岩石学报.
MLA	王仁民,et al."尚义葛令夭高铬花岗岩(Closepet-like)——新太古代古缝合带的新证据".岩石学报 (2012).