A window into atmospheric escape on early Mars provided by argon isotopes in a Martian meteorite

被引：3

作者：

Willett, Chelsea D. ^{[1
]}

Cassata, William S. ^{[1
]}

Marks, Naomi E. ^{[1
]}

机构：

[1] Nucl & Chem Sci Div, Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94550 USA

来源：

GEOCHIMICA ET COSMOCHIMICA ACTA | 2022年 / 329卷

关键词：

Mars; Argon; Martian meteorite; Mars atmospheric escape; Noble gas; MASS FRACTIONATION; NOBLE-GASES; DECAY CONSTANTS; EARLY EVOLUTION; COMPONENTS; ORIGIN; CONSTRAINTS; ALH84001; SOLAR; WATER;

D O I：

10.1016/j.gca.2022.04.017

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：

Novel analytical approaches to determining the trapped Ar-38/Ar-36 ratio of gases contained within Martian meteorites are presented and applied to the Martian regolith breccia Northwest Africa (NWA) 7034 and paired stone NWA 11220. The resulting data indicate that extensive mass-dependent fractionation of atmospheric Ar may have occurred within 150 million years of planetary formation, ostensibly as a result of diffusion-limited hydrodynamic escape. The inferred fractional loss of Ar and lighter atmospheric constituents exceeds 50%. These data suggest that volatiles derived from planetary outgassing and/ or impactors may dominate the present abundance of atmospheric Ar. (C) 2022 Elsevier Ltd. All rights reserved.

引用

页码：119 / 134

页数：16

共 58 条

[1] Unique Meteorite from Early Amazonian Mars: Water-Rich Basaltic Breccia Northwest Africa 7034 [J].

Agee, Carl B. ;

Wilson, Nicole V. ;

McCubbin, Francis M. ;

Ziegler, Karen ;

Polyak, Victor J. ;

Sharp, Zachary D. ;

Asmerom, Yemane ;

Nunn, Morgan H. ;

Shaheen, Robina ;

Thiemens, Mark H. ;

Steele, Andrew ;

Fogel, Marilyn L. ;

Bowden, Roxane ;

Glamoclija, Mihaela ;

Zhang, Zhisheng ;

Elardo, Stephen M. .

SCIENCE, 2013, 339 (6121) :780-785

[2] Primordial argon isotope fractionation in the atmosphere of Mars measured by the SAM instrument on Curiosity and implications for atmospheric loss [J].

Atreya, Sushil K. ;

Trainer, Melissa G. ;

Franz, Heather B. ;

Wong, Michael H. ;

Manning, Heidi L. K. ;

Malespin, Charles A. ;

Mahaffy, Paul R. ;

Conrad, Pamela G. ;

Brunner, Anna E. ;

Leshin, Laurie A. ;

Jones, John H. ;

Webster, Christopher R. ;

Owen, Tobias C. ;

Pepin, Robert O. ;

Navarro-Gonzalez, R. .

GEOPHYSICAL RESEARCH LETTERS, 2013, 40 (21) :5605-5609

[3] Martian volatiles: Isotopic composition, origin, and evolution [J].

Bogard, DD ;

Clayton, RN ;

Marti, K ;

Owen, T ;

Turner, G .

SPACE SCIENCE REVIEWS, 2001, 96 (1-4) :425-458

[4] Modern atmospheric signatures in 4.4 Ga Martian meteorite NWA 7034 [J].

Cartwright, J. A. ;

Ott, U. ;

Herrmann, S. ;

Agee, C. B. .

EARTH AND PLANETARY SCIENCE LETTERS, 2014, 400 :77-87

[5] A new approach to cosmogenic corrections in 40Ar/39Ar chronometry: Implications for the ages of Martian meteorites [J].

Cassata, W. S. ;

Borg, L. E. .

GEOCHIMICA ET COSMOCHIMICA ACTA, 2016, 187 :279-293

[6]

Cassata W. S., 2022, EARTH PLANET SC LETT, V580

[7] Chronology of martian breccia NWA 7034 and the formation of the martian crustal dichotomy [J].

Cassata, William S. ;

Cohen, Benjamin E. ;

Mark, Darren F. ;

Trappitsch, Reto ;

Crow, Carolyn A. ;

Wimpenny, Joshua ;

Lee, Martin R. ;

Smith, Caroline L. .

SCIENCE ADVANCES, 2018, 4 (05)

[8] Meteorite constraints on Martian atmospheric loss and paleoclimate [J].

Cassata, William S. .

EARTH AND PLANETARY SCIENCE LETTERS, 2017, 479 :322-329

[9] Argon diffusion in pyroxenes: Implications for thermochronometry and mantle degassing [J].

Cassata, William S. ;

Renne, Paul R. ;

Shuster, David L. .

EARTH AND PLANETARY SCIENCE LETTERS, 2011, 304 (3-4) :407-416

[10] Evidence for shock heating and constraints on Martian surface temperatures revealed by 40Ar/39Ar thermochronometry of Martian meteorites [J].

Cassata, William S. ;

Shuster, David L. ;

Renne, Paul R. ;

Weiss, Benjamin P. .

GEOCHIMICA ET COSMOCHIMICA ACTA, 2010, 74 (23) :6900-6920

← 1 2 3 4 5 6 →