No 'nanofossils' in Martian meteorite

被引：63

作者：

Bradley, JP

Harvey, RP

McSween, HY

机构：

[1] GEORGIA INST TECHNOL,SCH MAT SCI & ENGN,ATLANTA,GA 30332

[2] CASE WESTERN RESERVE UNIV,DEPT GEOL SCI,CLEVELAND,OH 44106

[3] UNIV TENNESSEE,DEPT GEOL SCI,KNOXVILLE,TN 37996

来源：

NATURE | 1997年 / 390卷 / 6659期

关键词：

D O I：

10.1038/37257

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：

Elongated, segmented forms found on fracture surfaces within the martian meteorite ALH84001 have been proposed to be martian ‘nanofossils’1, even though they appear too small to be fossilized bacteria2,3,4. We have examined similar forms and find that the majority are (non-biological) lamellar growth steps on pyroxene and carbonate crystals. Their segmented surface microstructures are laboratory artefacts resulting from the deposition of conductive heavy-metal coatings.

引用

页码：454 / 454

页数：1

共 12 条

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