The oxygen isotope composition of earth's oldest rocks and evidence of a terrestrial magma ocean

D. Rumble; S. Bowring; T. Iizuka; T. Komiya; A. Lepland; Minik Thorleif Rosing; Y. Ueno

doi:10.1002/ggge.20128

The oxygen isotope composition of earth's oldest rocks and evidence of a terrestrial magma ocean

D. Rumble, S. Bowring, T. Iizuka, T. Komiya, A. Lepland, Minik Thorleif Rosing, Y. Ueno

11 Citations (Scopus)

Abstract

Analysis of Hadean and Archean rocks for ¹⁶O- ¹⁷O-¹⁸O isotopes demonstrates that the Terrestrial Mass Fractionation Line of oxygen isotopes has had the same slope and intercept for at least the past 4.0 and probably for as long as 4.2 Ga. The homogenization of oxygen isotopes required to produce such long-lived consistency was most easily established by mixing in a terrestrial magma ocean. The measured identical oxygen isotope mass fractionation lines for Earth and Moon suggest that oxygen isotope reservoirs of both bodies were homogenized at the same time during a giant moon-forming impact. But other sources of heat for global melting cannot be excluded such as bolide impacts during early accretion of proto-Earth, the decay of short-lived radioactive isotopes, or the energy released during segregation of core from mantle.

Original language	English
Journal	Geochemistry, Geophysics, Geosystems
Volume	14
Issue number	6
Pages (from-to)	1929-1939
Number of pages	11
ISSN	1525-2027
DOIs	https://doi.org/10.1002/ggge.20128
Publication status	Published - 1 Jun 2013

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title = "The oxygen isotope composition of earth's oldest rocks and evidence of a terrestrial magma ocean",

abstract = "Analysis of Hadean and Archean rocks for 16O- 17O-18O isotopes demonstrates that the Terrestrial Mass Fractionation Line of oxygen isotopes has had the same slope and intercept for at least the past 4.0 and probably for as long as 4.2 Ga. The homogenization of oxygen isotopes required to produce such long-lived consistency was most easily established by mixing in a terrestrial magma ocean. The measured identical oxygen isotope mass fractionation lines for Earth and Moon suggest that oxygen isotope reservoirs of both bodies were homogenized at the same time during a giant moon-forming impact. But other sources of heat for global melting cannot be excluded such as bolide impacts during early accretion of proto-Earth, the decay of short-lived radioactive isotopes, or the energy released during segregation of core from mantle.",

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T1 - The oxygen isotope composition of earth's oldest rocks and evidence of a terrestrial magma ocean

AU - Rumble, D.

AU - Bowring, S.

AU - Iizuka, T.

AU - Komiya, T.

AU - Lepland, A.

AU - Rosing, Minik Thorleif

AU - Ueno, Y.

PY - 2013/6/1

Y1 - 2013/6/1

N2 - Analysis of Hadean and Archean rocks for 16O- 17O-18O isotopes demonstrates that the Terrestrial Mass Fractionation Line of oxygen isotopes has had the same slope and intercept for at least the past 4.0 and probably for as long as 4.2 Ga. The homogenization of oxygen isotopes required to produce such long-lived consistency was most easily established by mixing in a terrestrial magma ocean. The measured identical oxygen isotope mass fractionation lines for Earth and Moon suggest that oxygen isotope reservoirs of both bodies were homogenized at the same time during a giant moon-forming impact. But other sources of heat for global melting cannot be excluded such as bolide impacts during early accretion of proto-Earth, the decay of short-lived radioactive isotopes, or the energy released during segregation of core from mantle.

AB - Analysis of Hadean and Archean rocks for 16O- 17O-18O isotopes demonstrates that the Terrestrial Mass Fractionation Line of oxygen isotopes has had the same slope and intercept for at least the past 4.0 and probably for as long as 4.2 Ga. The homogenization of oxygen isotopes required to produce such long-lived consistency was most easily established by mixing in a terrestrial magma ocean. The measured identical oxygen isotope mass fractionation lines for Earth and Moon suggest that oxygen isotope reservoirs of both bodies were homogenized at the same time during a giant moon-forming impact. But other sources of heat for global melting cannot be excluded such as bolide impacts during early accretion of proto-Earth, the decay of short-lived radioactive isotopes, or the energy released during segregation of core from mantle.

KW - oxygen isotopes

KW - magma ocean

U2 - 10.1002/ggge.20128

DO - 10.1002/ggge.20128

M3 - Journal article

SN - 1525-2027

VL - 14

SP - 1929

EP - 1939

JO - Geochemistry, Geophysics, Geosystems

JF - Geochemistry, Geophysics, Geosystems

IS - 6

ER -

The oxygen isotope composition of earth's oldest rocks and evidence of a terrestrial magma ocean

Abstract

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