Mass independent oxygen isotopic composition of atmospheric sulfate: Origin and implications for the present and past atmosphere of earth and mars

被引：35

作者：

Lee, CCW ^{[1
]}

Savarino, J ^{[1
]}

Thiemens, MH ^{[1
]}

机构：

[1] Univ Calif San Diego, Dept Chem, La Jolla, CA 92093 USA

来源：

GEOPHYSICAL RESEARCH LETTERS | 2001年 / 28卷 / 09期

关键词：

D O I：

10.1029/2000GL011826

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

It is reported that atmospheric (aerosol and rainwater! sulfate possesses a mass independent isotopic composition, with excess O-17. Laboratory experiments indicate that the oxidants, H2O2 and O-3, are the source of anomalous O-17 enrichments in atmospheric sulfate via aqueous phase S(IV) oxidation. The discovery of the oxygen anomaly in atmospheric sulfate, with definition of its origin, provides a new way to investigate atmospheric and general planetary processes. The observations provide new insight into atmospheric chemistry with application in studies of the evolution of the atmosphere and surface-atmosphere interactions, both on Earth and Mars.

引用

页码：1783 / 1786

页数：4

共 26 条

[1] Origins of sulphate in Antarctic dry-valley soils as deduced from anomalous 17O compositions [J].

Bao, HM ;

Campbell, DA ;

Bockheim, JG ;

Thiemens, MH .

NATURE, 2000, 407 (6803) :499-502

[2] Anomalous 17O compositions in massive sulphate deposits on the Earth [J].

Bao, HM ;

Thiemens, MH ;

Farquhar, J ;

Campbell, DA ;

Lee, CCW ;

Heine, K ;

Loope, DB .

NATURE, 2000, 406 (6792) :176-178

[3]

BHATTACHARYA SK, 1989, Z NATURFORSCH A, V44, P435

[4] Isotope specific kinetics of hydroxyl radical (OH) with water (H2O): Testing models of reactivity and atmospheric fractionation [J].

Dubey, MK ;

Mohrschladt, R ;

Donahue, NM ;

Anderson, JG .

JOURNAL OF PHYSICAL CHEMISTRY A, 1997, 101 (08) :1494-1500

[5] The origin of sulphur in gypsum and dissolved sulphate in the Central Namib Desert, Namibia [J].

Eckardt, FD ;

Spiro, B .

SEDIMENTARY GEOLOGY, 1999, 123 (3-4) :255-273

[6] Evidence of atmospheric sulphur in the martian regolith from sulphur isotopes in meteorites [J].

Farquhar, J ;

Savarino, J ;

Jackson, TL ;

Thiemens, MH .

NATURE, 2000, 404 (6773) :50-52

[7] Atmosphere-surface interactions on Mars:: Δ17O measurements of carbonate from ALH 84001 [J].

Farquhar, J ;

Thiemens, MH ;

Jackson, T .

SCIENCE, 1998, 280 (5369) :1580-1582

[8] THE TRANSFER OF OXYGEN ATOMS IN OXIDATION-REDUCTION REACTIONS .4. THE REACTION OF HYDROGEN PEROXIDE WITH SULFITE AND THIOSULFATE, AND OF OXYGEN, MANGANESE DIOXIDE AND OF PERMANGANATE WITH SULFITE [J].

HALPERIN, J ;

TAUBE, H .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1952, 74 (02) :380-382

[9] O-18 STUDY OF THE AQUEOUS-PHASE OXIDATION OF SULFUR-DIOXIDE [J].

HOLT, BD ;

KUMAR, R ;

CUNNINGHAM, PT .

ATMOSPHERIC ENVIRONMENT, 1981, 15 (04) :557-566

[10] PREPARATION OF CARBON-DIOXIDE FROM SULFATES, SULFUR-DIOXIDE, AIR, AND WATER FOR DETERMINATION OF OXYGEN ISOTOPE RATIO [J].

HOLT, BD .

ANALYTICAL CHEMISTRY, 1977, 49 (12) :1664-1667

← 1 2 3 →