Reply to Capitanio 2005. Mineralogic and bulk rock composition of Italian wollastonite- and melilite-bearing paralava and clinker: Further evidence of their pyrometamorphic nature
Abstract
Two small outcrops of wollastonite- and melilite-bearing paralavas, with a pyrometamorphic genesis, have been found along the Apennine chain, in Central Italy, at the localities of Colle Fabbri and Ricetto. Recent papers added new data strengthening the hypothesis that the Ricetto wollastonite- and melilite-bearing rocks were produced by pyrometamorphism of carbonate-rich siliciclastic sedimentary rocks. In addition, these new papers depicted the Ricetto paralavas as having wide mineralogical and compositional variations due to liquid immiscibility and/or carbonate devolatilization, paralleling the trend observed for other paralavas (e.g., Colle Fabbri, Italy; British Columbia, Canada; Wyoming, U.S.A.; etc.). The source of heat for inducing pyrometamorphism was not investigated in the original paper, which was the subject of the comment. Capitanio et al. (2004), on the basis of 14C age determination and of a mineralogical study, argued convincingly that heat was supplied to the Ricetto rocks by wood-combustion for charcoal production.
© 2015 by Walter de Gruyter Berlin/Boston
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- Experimental study on diamond dissolution in kimberlitic and lamproitic melts at 1300-1420 °C and 1 GPa with controlled oxygen partial pressure
- Validation of LA-ICP-MS fluid inclusion analysis with synthetic fluid inclusions
- Etch pit coalescence, surface area, and overall mineral dissolution rates
- Crystal chemistry of the elbaite-schorl series
- Morphology of nanomagnetite crystals: Implications for formation conditions
- Fragmentation phenomena in populations of magmatic crystals
- Kinetics of Fe2+-Mg order-disorder in P21/c pigeonite
- First-principles studies on the elastic constants of a 1:1 layered kaolinite mineral
- Quantum mechanical calculations of trans-vacant and cis-vacant polymorphism in dioctahedral 2:1 phyllosilicates
- The stability and Raman spectra of ikaite, CaCO3·6H2O, at high pressure and temperature
- Model pyroxenes III: Volume of C2/c pyroxenes at mantle P, T, and x
- The kinetics and mechanisms of goethite and hematite crystallization under alkaline conditions, and in the presence of phosphate
- High-resolution 17O MAS NMR spectroscopy of forsterite (α-Mg2SiO4), wadsleyite (β-Mg2SiO4), and ringwoodite (γ-Mg2SiO4)
- Comparative study of equilibrated and unequilibrated eucrites: Subsolidus thermal histories of Haraiya and Pasamonte
- Origin and internal evolution of the Li-F-Be-B-P-bearing Pinilla de Fermoselle pegmatite (Central Iberian Zone, Zamora, Spain)
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- Letter. Direct observations of pseudomorphism: compositional and textural evolution at a fluid- solid interface
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- Comment on Melluso et al. (2003) Reported data and interpretation of some wollastonite- and melilite-bearing rocks from the Central Apennines of Italy
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- Comment on Melluso et.al. (2003). The Ricetto and Colle Fabbri wollastonite and melilite-bearing rocks of the central Apennines, Italy
- Reply to Capitanio 2005. Mineralogic and bulk rock composition of Italian wollastonite- and melilite-bearing paralava and clinker: Further evidence of their pyrometamorphic nature