THE SUBDUCTED COMPONENT IN ISLAND-ARC LAVAS - CONSTRAINTS FROM BE ISOTOPES AND B-BE SYSTEMATICS

被引：471

作者：

MORRIS, JD ^{[1
]}

LEEMAN, WP ^{[1
]}

TERA, F ^{[1
]}

机构：

[1] RICE UNIV,DEPT GEOL & GEOPHYS,HOUSTON,TX 77251

来源：

NATURE | 1990年 / 344卷 / 6261期

关键词：

D O I：

10.1038/344031a0

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：

Although high concentrations of beryllium-10 and boron are taken as unequivocal indicators of the contribution of subducting plates, controversy persists about the processes by which material is transferred from slabs to the sources of arc magmas. Data on 10Be/Be and B/Be ratios from four arcs suggest that the contribution from the slab is compositionally homogeneous in each arc and that subducted boron is not stored in the sub-arc mantle. The link between subduction and magma-tism at convergent margins seems to be well regulated. © 1990 Nature Publishing Group.

引用

页码：31 / 36

页数：6

共 41 条

[1]

[Anonymous], 1967, KOSMISCHE STRAHLUNG, DOI [DOI 10.1007/978-3-642-46079-1_7, 10.1007/978-3-642-46079-1_7]

[2] BERYLLIUM-10 PRODUCED BY COSMIC RAYS [J].