EVIDENCE FOR PORPHYRINS IN EARLY PRECAMBRIAN SWAZILAND SYSTEM SEDIMENTS

被引：29

作者：

KVENVOLDEN, KA

HODGSON, GW

机构：

[1] Exobiology Division, Ames Research Center, NASA, Moffett Field

来源：

GEOCHIMICA ET COSMOCHIMICA ACTA | 1969年 / 33卷 / 10期

关键词：

D O I：

10.1016/0016-7037(69)90041-6

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Small concentrations of porphyrins have been found in samples of Fig Tree shale (5 × 10-6 μg/g) and Onverwacht chert (5 × 10-5 μg/g) from Swaziland System sediments of South Africa. These sediments are more than 3 billion years old. The origin of these porphyrins is not known, but they are believed to be indigenous to the samples. The porphyrins may be relics of an ancient biochemistry. © 1969.

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页码：1195 / +

页数：1

相关论文

共 14 条

[1]

ANHAEUSSER CR, 1967, 38 U WITW INF CIRC

[2] MICROORGANISMS 3 BILLION YEARS OLD FROM PRECAMBRIAN OF SOUTH AFRICA [J].

BARGHOOR.ES ;

SCHOPF, JW .

SCIENCE, 1966, 152 (3723) :758-&

[3] MICROORGANISMS FROM GUNFLINT CHERT - THESE STRUCTURALLY PRESERVED PRECAMBRIAN FOSSILS FROM ONTARIO ARE MOST ANCIENT ORGANISMS KNOWN [J].

BARGHOORN, ES ;

TYLER, SA .

SCIENCE, 1965, 147 (3658) :563-+

[4] ALGA-LIKE FORMS IN ONVERWACHT SERIES SOUTH AFRICA - OLDEST RECOGNIZED LIFELIKE FORMS ON EARTH [J].

ENGEL, AEJ ;

NAGY, B ;

NAGY, LA ;

ENGEL, CG ;

KREMP, GOW ;

DREW, CM .

SCIENCE, 1968, 161 (3845) :1005-&

[5] GEOCHEMISTRY OF PORPHYRINS CHLORINS AND POLYCYCLIC AROMATICS IN SOILS SEDIMENTS AND SEDIMENTARY ROCKS [J].

HODGSON, GW ;

HITCHON, B ;

TAGUCHI, K ;

BAKER, BL ;

PEAKE, E .

GEOCHIMICA ET COSMOCHIMICA ACTA, 1968, 32 (07) :737-&

[6] PREBIOTIC PORPHYRIN GENESIS - PORPHYRINS FROM ELECTRIC DISCHARGE IN METHANE AMMONIA AND WATER VAPOR [J].

HODGSON, GW ;

PONNAMPERUMA, C .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1968, 59 (01) :22-+

[7] PORPHYRINS IN METEORITES - METAL COMPLEXES IN ORGUEIL, MURRAY, COLD BOKKEVELD, AND MOKOIA CARBONACEOUS CHONDRITES [J].

HODGSON, GW ;

BAKER, BL .

GEOCHIMICA ET COSMOCHIMICA ACTA, 1969, 33 (08) :943-&

[8]

HODGSON GW, IN PRESS

[9]

Hoering T.C., 1965, CARNEGIE I WASHINGTO, V64, P215

[10]

KVENVOLDEN KA, 1968, ORGANIC GEOCHEMISTRY, P167