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Oxygen isotope constraints on the alteration temperatures of CM chondrites

Abstract : Carbonate O-isotope compositions of 9 CMs define a continuous trend crossing the TFL. This mass independent trend matches that defined by bulk CM-COs and matrix (BMC trend). CM water defines a trend (CMW) parallel to the bulk-matrix-carbonate trend (BMC). The distance between BMC and CMW is directly related to CM alteration temperature. Carbonates precipitated at higher temperatures than previously inferred (50-300°C).
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https://hal.univ-lorraine.fr/hal-03541761
Contributor : Yves Marrocchi Connect in order to contact the contributor
Submitted on : Monday, January 24, 2022 - 8:04:23 PM
Last modification on : Wednesday, February 2, 2022 - 11:54:46 AM

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Maximilien Verdier-Paoletti, Yves Marrocchi, Guillaume Avice, Mathieu Roskosz, Andrey Gurenko, et al.. Oxygen isotope constraints on the alteration temperatures of CM chondrites. Earth and Planetary Science Letters, Elsevier, 2017, 458, pp.273-281. ⟨10.1016/j.epsl.2016.10.055⟩. ⟨hal-03541761⟩

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