MAGNETITE IN CI CARBONACEOUS METEORITES - ORIGIN BY AQUEOUS ACTIVITY ON A PLANETESIMAL SURFACE

被引：125

作者：

KERRIDGE, JF

MACKAY, AL

BOYNTON, WV

机构：

[1] UNIV LONDON BIRKBECK COLL, DEPT CRYSTALLOG, LONDON WC1E 7HX, ENGLAND

[2] UNIV ARIZONA, LUNAR & PLANETARY LAB, TUCSON, AZ 85721 USA

来源：

SCIENCE | 1979年 / 205卷 / 4404期

关键词：

D O I：

10.1126/science.205.4404.395

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 composition and morphology of magnetite in CI carbonaceous meteorites appear incompatible with a nebular origin. Mineralization on the meteorite parent body is a more plausible mode of formation. The iodine-xenon age of this material therefore dates an episode of secondary mineralization on a planetesimal rather than the epoch of condensation in the primitive solar nebula. Copyright © 1979 AAAS.

引用

页码：395 / 397

页数：3

共 32 条

[1] HOW WELL DO WE KNOW COSMIC ABUNDANCES [J].