Solar wind helium, neon, and argon isotopic and elemental composition: Data from the metallic glass flown on NASA’s Genesis mission

Grimberg, A.; Baur, H.; Bühler, F.; Bochsler, P.; Wieler, R.

doi:10.1016/j.gca.2007.10.017

Cited by 46 publications

(60 citation statements)

References 51 publications

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“…Only after Genesis we can confidently conclude that the SW 36 Ar/ 38 Ar ratio is significantly higher than that in the terrestrial atmosphere, suggesting atmospheric losses in the early evolution of the Earth's atmosphere. (Cerutti, 1974;Benkert et al, 1993;Weygand et al, 2001;Palma et al, 2002;Geiss et al, 2004) with Genesis measurements Grimberg et al, 2008;Heber et al, 2009;Vogel et al, 2001;Pepin et al, 2012;this work). Abbreviations next to Genesis data points stand for laboratories were the analyses were performed: WU -Washington University, ETHEidgenössischen Technischen Hochschule Zürich, UM -University of Minnesota.…”

Section: Depth Profiles Of Light Noble Gasesmentioning

confidence: 59%

Measuring the Isotopic Composition of Solar Wind Noble Gases

Meshik¹,

Hohenberg²,

Pravdivtseva³

et al. 2012

Exploring the Solar Wind

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Section: Depth Profiles Of Light Noble Gasesmentioning

confidence: 59%

Measuring the Isotopic Composition of Solar Wind Noble Gases

Meshik¹,

Hohenberg²,

Pravdivtseva³

et al. 2012

Exploring the Solar Wind

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“…Consequently, noble gas data for this sample were not presented in the tables. (Grimberg et al, 2008), and (4.34±0.02) × 10 −4 (Mabry et al, 2007), and He in Jupter's atmosphere, (1.66±0.06) × 10 −4 (Mahaffey et al, 1998). The latter is thought to resemble He in protoplanetary nebula.…”

Section: Resultsmentioning

confidence: 98%

“…The shaded arrow represents mass fractionation line from SW-Ne (e.g. Grimberg et al, 2008). The fractionation line is close to a mixing line between SW and air.…”

Section: Light Noble Gases He and Ne In The Snow-ammsmentioning

confidence: 98%

“…Most data points are similar to those of ice-AMMs, located on a fractionation line passing through SW-Ne. The fractionation is explained as mass separation effect upon SW-Ne implantation by Grimberg et al (2008). Solar Ne implanted into deeper layer of MMs with mass fractionation favoring heavier isotopes can be retained more tightly, survived from atmospheric entry heating, than the lower energy SW-Ne implanted into the shallower layer.…”

Section: Light Noble Gases He and Ne In The Snow-ammsmentioning

confidence: 99%

“…Light noble gas compositions of the IDPs resembled those of solar-gas-rich meteorites, but heavy noble gases resembled planetary ones enriched in carbonaceous chondritic material. and reported He and Ne isotopic ratios attributed to implantation of solar energetic particles ("SEP") in individual IDPs and spherules from deep sea sediments, although this composition has now been shown to be implantation of mass discriminated solar wind "SW" (Grimberg et al, 2008). Laser heating methods have been used to extract noble gases from single IDPs; the measured He, Ne, and Ar were of solar origin (Kehm et al, 1998(Kehm et al, , 2002.…”

Section: Introductionmentioning

confidence: 99%

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Single grain noble gas analysis of Antarctic micrometeorites by stepwise heating method with a newly constructed miniature furnace

et al. 2011

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Ten micrometeorites weighing 0.14-18.5 μg, each retrieved from surface snow near the Dome Fuji Station, Antarctica (snow-AMMs), were studied to elucidate their noble gases, mineralogy, morphology, and chemical compositions. Low densities in the range of 0.2-1.4 g/cm 3 estimated for seven samples suggested a porous inner structure. Noble gases were extracted from each particle using stepwise heating with a laboratory manufactured miniature furnace. Isotopic ratios of He and Ne indicate that the light noble gases with high 4 He concentrations ranging from 10 −2 to 10 −4 cm 3 STP/g are mostly of solar origin. The higher concentrations of 4 He observed for several samples are comparable with those of IDPs enriched in solar He, but exceed those reported for ice-AMMs. In contrast to He and Ne, heavy noble gases Ar, Kr, and Xe are primordial ones resembling Q-gas trapped in chondrites, although a small contribution of solar Ar is indicated for some samples with higher 36 Ar/ 132 Xe ratios than that for the Q-gas. Three particles released appreciable amounts of He at temperatures lower than 800• C, suggesting heating temperatures lower than 700• C at the time of atmospheric entry. Other particles released at most 10% of total He at the temperatures up to 800• C. Based on their sizes, weights, and release profiles of 4 He, initial speeds of less than 14 km/s at atmospheric entry were indicated for the particles. The slow entry speeds imply that all the snow-AMMs studied in this work were likely derived from asteroids. The present work demonstrates that the miniature furnace can be applicable to noble gas analysis of tiny grains from the Itokawa asteroidal regolith materials returned by the Hayabusa mission.

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Origin of Light Noble Gases (He, Ne, and Ar) on Earth: A Review

Péron

Moreira

Agranier

2018

Geochem Geophys Geosyst

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We review the different scenarios for the origin of light noble gases (He, Ne, and Ar) on Earth. Several sources could have contributed to the Earth's noble gas budget: implanted solar wind, solar nebula gas, chondrites, and comets. Although there is evidence for “solar‐like” neon in the Earth's mantle, questions remain as to its origin. A new compilation of noble gas data in lunar soils, interplanetary dust particles, micrometeorites, and solar wind allows examination of the implanted solar wind composition, which is key to understanding the “solar‐like” mantle neon isotope composition. We show that lunar soils that reflect this solar‐wind‐implanted signature have a 20Ne/22Ne ratio very close to that of ocean island basalts. New data and calculations illustrate that the measured plume source 20Ne/22Ne ratio is close to the primitive mantle ratio, when taking into account mixing with the upper mantle (that has lower 20Ne/22Ne ratio). This favors early solar wind implantation to account for the origin of light volatiles (He, Ne, and possibly H) in the Earth's mantle: they were incorporated by solar wind irradiation into the Earth's precursor grains during the first few Myr of the solar system's formation. These grains must have partially survived accretion processes (only a few percent are needed to satisfy the Earth's budget of light volatiles). As for the atmosphere, the neon isotope composition can be explained by mixing 36% of mantle gases having this solar‐wind‐implanted signature and 64% of chondritic gases delivered in a late veneer phase.

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Solar wind helium, neon, and argon isotopic and elemental composition: Data from the metallic glass flown on NASA’s Genesis mission

Cited by 46 publications

References 51 publications

Measuring the Isotopic Composition of Solar Wind Noble Gases

Measuring the Isotopic Composition of Solar Wind Noble Gases

Single grain noble gas analysis of Antarctic micrometeorites by stepwise heating method with a newly constructed miniature furnace

Origin of Light Noble Gases (He, Ne, and Ar) on Earth: A Review

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