Abstract
A shallow origin for diamonds in ophiolitic chromitites: REPLY
Highlights
We are pleased to have the opportunity to address in further detail their concerns on the natural origin of the reported microdiamonds in Tehuitzingo, Mexico, chromitites (Massonne, 2019), as well as their geological meaning (Yang et al, 2019)
Massonne (2019) argues against a natural origin for the diamonds reported by us, stating that microdiamonds crystallized from supercritical C–O–H fluids are usually idiomorphic
We provided high-resolution transmission electron microscopy images evidencing the complete lack of polishing debris and epoxy in the chromite-hosted diamond inclusions from the Tehuitzingo chromitites, as the presence of this material would be expected if diamonds were incorporated during the polishing process
Summary
We are pleased to have the opportunity to address in further detail their concerns on the natural origin of the reported microdiamonds in Tehuitzingo, Mexico, chromitites (Massonne, 2019), as well as their geological meaning (Yang et al, 2019). We (Farré-de-Pablo et al, 2018) provided many lines of evidence (e.g., detailed inspection by transmission electron microscopy [TEM] of focused ion beam [FIB] prepared foil) supporting the presence of natural diamonds in the Tehuitzingo chromitites.
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