Rapid growth of magnesium-carbonate weathering products in a stony meteorite from Antarctica

A. J.T. Jull; S. Cheng; J. L. Gooding; M. A. Velbel

doi:10.1126/science.242.4877.417

Rapid growth of magnesium-carbonate weathering products in a stony meteorite from Antarctica

A. J.T. Jull, S. Cheng, J. L. Gooding, M. A. Velbel

Geosciences

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Abstract

Nesquehonite, a hydrous magnesium carbonate, occurs as a weathering product on the surface of the Antarctic meteorite LEW 85320 (H5 chondrite). Antarctic meteorites have resided on the earth for periods of 10⁴ to 10 ⁶ years, but the time needed for weathering products to form has been uncertain. Isotopic measurements of δ¹³C and δ¹⁸O indicate that the nesquehonite formed at near freezing temperatures by reaction of meteoritic minerals with terrestrial water and carbon dioxide. Results from carbon-14 dating suggest that, although the meteorite has been in Antarctica for at least 3.2 × 10⁴ to 3.3 × 10⁴ years, the nesquehonite formed after A.D. 1950.

Original language	English (US)
Pages (from-to)	417-419
Number of pages	3
Journal	Science
Volume	242
Issue number	4877
DOIs	https://doi.org/10.1126/science.242.4877.417
State	Published - 1988

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title = "Rapid growth of magnesium-carbonate weathering products in a stony meteorite from Antarctica",

abstract = "Nesquehonite, a hydrous magnesium carbonate, occurs as a weathering product on the surface of the Antarctic meteorite LEW 85320 (H5 chondrite). Antarctic meteorites have resided on the earth for periods of 104 to 10 6 years, but the time needed for weathering products to form has been uncertain. Isotopic measurements of δ13C and δ18O indicate that the nesquehonite formed at near freezing temperatures by reaction of meteoritic minerals with terrestrial water and carbon dioxide. Results from carbon-14 dating suggest that, although the meteorite has been in Antarctica for at least 3.2 × 104 to 3.3 × 104 years, the nesquehonite formed after A.D. 1950.",

author = "Jull, {A. J.T.} and S. Cheng and Gooding, {J. L.} and Velbel, {M. A.}",

year = "1988",

doi = "10.1126/science.242.4877.417",

language = "English (US)",

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journal = "Science",

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publisher = "American Association for the Advancement of Science",

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T1 - Rapid growth of magnesium-carbonate weathering products in a stony meteorite from Antarctica

AU - Jull, A. J.T.

AU - Cheng, S.

AU - Gooding, J. L.

AU - Velbel, M. A.

PY - 1988

Y1 - 1988

N2 - Nesquehonite, a hydrous magnesium carbonate, occurs as a weathering product on the surface of the Antarctic meteorite LEW 85320 (H5 chondrite). Antarctic meteorites have resided on the earth for periods of 104 to 10 6 years, but the time needed for weathering products to form has been uncertain. Isotopic measurements of δ13C and δ18O indicate that the nesquehonite formed at near freezing temperatures by reaction of meteoritic minerals with terrestrial water and carbon dioxide. Results from carbon-14 dating suggest that, although the meteorite has been in Antarctica for at least 3.2 × 104 to 3.3 × 104 years, the nesquehonite formed after A.D. 1950.

AB - Nesquehonite, a hydrous magnesium carbonate, occurs as a weathering product on the surface of the Antarctic meteorite LEW 85320 (H5 chondrite). Antarctic meteorites have resided on the earth for periods of 104 to 10 6 years, but the time needed for weathering products to form has been uncertain. Isotopic measurements of δ13C and δ18O indicate that the nesquehonite formed at near freezing temperatures by reaction of meteoritic minerals with terrestrial water and carbon dioxide. Results from carbon-14 dating suggest that, although the meteorite has been in Antarctica for at least 3.2 × 104 to 3.3 × 104 years, the nesquehonite formed after A.D. 1950.

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ER -

Rapid growth of magnesium-carbonate weathering products in a stony meteorite from Antarctica

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