Fluid flow in chondritic parent bodies: Deciphering the compositions of planetesimals

被引：170

作者：

Young, ED

Ash, RD

England, P

Rumble, D

机构：

[1] Univ Oxford, Dept Earth Sci, Oxford OX1 3PR, England

[2] Carnegie Inst Washington, Geophys Lab, Washington, DC 20015 USA

来源：

SCIENCE | 1999年 / 286卷 / 5443期

关键词：

D O I：

10.1126/science.286.5443.1331

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：

Alteration of the Allende meteorite caused shifts in oxygen isotope ratios along a single mass fractionation Line, if alteration was caused by aqueous fluid, the pattern of oxygen isotope fractionation can be explained only by flow of reactive water down a temperature gradient. Down-temperature flow of aqueous fluid within planetesimals is sufficient to explain the mineralogical and oxygen isotopic diversity among CV, CM, and CI carbonaceous chondrites and displacement of the terrestrial planets from the primordial slope 1.00 line on the oxygen three-isotope plot.

引用

页码：1331 / 1335

页数：5

共 38 条

[1]

[Anonymous], 1985, METEORITES CLASSIFIC

[2]

ASH RD, 1999, LUNAR PLANET SCI C, V30

[3]

BAKER L, 1998, LUNAR PLANET SCI C, V29

[4]

BREARLEY AJ, 1999, REV MINERAL, V36, P3