scholarly journals Measuring the Isotopic Composition of Solar Wind Noble Gases

10.5772/37908 ◽  
2012 ◽  
Author(s):  
Alex Meshik ◽  
Charles Hohenberg ◽  
Olga Pravdivtseva ◽  
Donald Burnett
Keyword(s):  
Solar Wind ◽  
Isotopic Composition ◽  
Noble Gases

What CO 2 well gases tell us about the origin of noble gases in the mantle and their relationship to the atmosphere

2008 ◽  
Vol 366 (1883) ◽  
pp. 4183-4203 ◽  
Author(s):  
Chris J Ballentine ◽  
Greg Holland
Keyword(s):  
Solar Wind ◽  
Isotopic Composition ◽  
Solar Nebula ◽  
Noble Gases ◽  
Noble Gas ◽  
Isotopic Fractionation ◽  
Elemental Abundance ◽  
Published Data ◽  
Abundance Pattern ◽  
New Information

Study of commercially produced volcanic CO 2 gas associated with the Colorado Plateau, USA, has revealed substantial new information about the noble gas isotopic composition and elemental abundance pattern of the mantle. Combined with published data from mid-ocean ridge basalts, it is now clear that the convecting mantle has a maximum 20 Ne/ 22 Ne isotopic composition, indistinguishable from that attributed to solar wind-implanted (SWI) neon in meteorites. This is distinct from the higher 20 Ne/ 22 Ne isotopic value expected for solar nebula gases. The non-radiogenic xenon isotopic composition of the well gases shows that 20 per cent of the mantle Xe is ‘solar-like’ in origin, but cannot resolve the small isotopic difference between the trapped meteorite ‘Q’-component and solar Xe. The mantle primordial 20 Ne/ 132 Xe is approximately 1400 and is comparable with the upper end of that observed in meteorites. Previous work using the terrestrial 129 I– 129 Xe mass balance demands that almost 99 per cent of the Xe (and therefore other noble gases) has been lost from the accreting solids and that Pu–I closure age models have shown this to have occurred in the first ca 100 Ma of the Earth's history. The highest concentrations of Q-Xe and solar wind-implanted (SWI)-Ne measured in meteorites allow for this loss and these high-abundance samples have a Ne/Xe ratio range compatible with the ‘recycled-air-corrected’ terrestrial mantle. These observations do not support models in which the terrestrial mantle acquired its volatiles from the primary capture of solar nebula gases and, in turn, strongly suggest that the primary terrestrial atmosphere, before isotopic fractionation, is most probably derived from degassed trapped volatiles in accreting material. By contrast, the non-radiogenic argon, krypton and 80 per cent of the xenon in the convecting mantle have the same isotopic composition and elemental abundance pattern as that found in seawater with a small sedimentary Kr and Xe admix. These mantle heavy noble gases are dominated by recycling of air dissolved in seawater back into the mantle. Numerical simulations suggest that plumes sampling the core–mantle boundary would be enriched in seawater-derived noble gases compared with the convecting mantle, and therefore have substantially lower 40 Ar/ 36 Ar. This is compatible with observation. The subduction process is not a complete barrier to volatile return to the mantle.

scholarly journals A 15N-Poor Isotopic Composition for the Solar System As Shown by Genesis Solar Wind Samples

Science ◽  
2011 ◽  
Vol 332 (6037) ◽  
pp. 1533-1536 ◽  
Author(s):  
B. Marty ◽  
M. Chaussidon ◽  
R. C. Wiens ◽  
A. J. G. Jurewicz ◽  
D. S. Burnett
Keyword(s):  
Solar Wind ◽  
Solar System ◽  
Isotopic Composition

Solar Wind Helium Isotopic Composition from SWICS/Ulysses

1995 ◽  
pp. 61-64
Author(s):  
R. Bodmer ◽  
P. Bochsler ◽  
J. Geiss ◽  
R. Von Steiger ◽  
G. Gloeckler
Keyword(s):  
Solar Wind ◽  
Isotopic Composition ◽  
Helium Isotopic Composition

Isotopic composition of xenon and krypton in the lunar soil and in the solar wind

1971 ◽  
Vol 10 (2) ◽  
pp. 199-216 ◽  
Author(s):  
F.A. Podosek ◽  
J.C. Huneke ◽  
D.S. Burnett ◽  
G.J. Wasserburg
Keyword(s):  
Solar Wind ◽  
Isotopic Composition ◽  
Lunar Soil

The Isotopic Composition of Iron in the Solar Wind: First Measurements with the MASS Sensor on the [ITAL]Wind[/ITAL] Spacecraft

1997 ◽  
Vol 474 (1) ◽  
pp. L69-L72 ◽  
Author(s):  
M. Oetliker ◽  
D. Hovestadt ◽  
B. Klecker ◽  
M. R. Collier ◽  
G. Gloeckler ◽  
...  
Keyword(s):  
Solar Wind ◽  
Isotopic Composition ◽  
Mass Sensor

Solar wind helium isotopic composition from SWICS/ULYSSES

1995 ◽  
Vol 72 (1-2) ◽  
pp. 61-64 ◽  
Author(s):  
R. Bodmer ◽  
P. Bochsler ◽  
J. Geiss ◽  
R. von Steiger ◽  
G. Gloeckler
Keyword(s):  
Solar Wind ◽  
Isotopic Composition ◽  
Helium Isotopic Composition
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