OXYGEN ISOTOPE EVIDENCE FOR RECYCLED CRUST IN THE SOURCE OF EM-TYPE OCEAN ISLAND BASALTS

被引：79

作者：

WOODHEAD, JD

GREENWOOD, P

HARMON, RS

STOFFERS, P

机构：

[1] KINGSLEY DUNHAM CTR,NERC,ISOTOPE GEOSCI LAB,KEYWORTH NG12 5GG,NOTTS,ENGLAND

[2] UNIV KIEL,INST GEOL,W-2300 KIEL 1,GERMANY

来源：

NATURE | 1993年 / 362卷 / 6423期

关键词：

D O I：

10.1038/362809a0

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The oxygen isotope compositions of fresh volcanic glasses from submarine volcanoes of 'enriched mantle' (EM-I and EM-II) type appear to require the presence of subducted crustal components in the source of these lavas. These data confirm earlier inferences from trace elements and radiogenic isotopes, and also provide a rare opportunity to estimate the proportion of subducted material that reaches the source region of ocean island basalts.

引用

页码：809 / 813

页数：5

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