Dynamics of oxidation of a Fe2+-bearing aluminosilicate (Basaltic) melt

被引：48

作者：

Cooper, RF

Fanselow, JB

Weber, JKR

Merkley, DR

Poker, DB

机构：

[1] INTERSON INC,NORTHBROOK,IL 60062

[2] OAK RIDGE NATL LAB,OAK RIDGE,TN 37831

[3] UNIV WISCONSIN,DEPT GEOL & GEOPHYS,MADISON,WI 53706

来源：

SCIENCE | 1996年 / 274卷 / 5290期

关键词：

D O I：

10.1126/science.274.5290.1173

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：

Rutherford backscattering spectroscopy (RBS) and microscopy demonstrate that the similar to 1400 degrees C oxidation of levitated droplets of a natural Fe2+-bearing aluminosilicate (basalt) melt occurs by chemical diffusion of Fe2+ and Ca2+ to the free surface of the droplet; internal oxidation of the melt results from the required counterflux of electron holes. Diffusion of an oxygen species is not required. Oxidation causes the droplets to go subsolidus; magnetite (Fe3O4) forms at the oxidation-solidification front with a morphology suggestive of a Liesegang-band nucleation process.

引用

页码：1173 / 1176

页数：4

共 26 条

[1] OXYGEN DIFFUSION IN AN FE-RICH BASALT MELT [J].