Publications

@article{campomenosi_using_2021,

title = {Using the elastic properties of zircon-garnet host-inclusion pairs for thermobarometry of the ultrahigh-pressure Dora-Maira whiteschists: problems and perspectives},

author = {Nicola Campomenosi and Marco Scambelluri and Ross J. Angel and Joerg Hermann and Mattia L. Mazzucchelli and Boriana Mihailova and Francesca Piccoli and Matteo Alvaro},

url = {https://doi.org/10.1007/s00410-021-01793-6},

doi = {10.1007/s00410-021-01793-6},

issn = {1432-0967},

year  = {2021},

date = {2021-04-01},

urldate = {2021-04-01},

journal = {Contributions to Mineralogy and Petrology},

volume = {176},

number = {5},

pages = {36},

abstract = {The ultrahigh-pressure (UHP) whiteschists of the Brossasco-Isasca unit (Dora-Maira Massif, Western Alps) provide a natural laboratory in which to compare results from classical pressure (P)–temperature (T) determinations through thermodynamic modelling with the emerging field of elastic thermobarometry. Phase equilibria and chemical composition of three garnet megablasts coupled with Zr-in-rutile thermometry of inclusions constrain garnet growth within a narrow P–T range at 3–3.5 GPa and 675–720 °C. On the other hand, the zircon-in-garnet host-inclusion system combined with Zr-in-rutile thermometry would suggest inclusion entrapment conditions below 1.5 GPa and 650 °C that are inconsistent with the thermodynamic modelling and the occurrence of coesite as inclusion in the garnet rims. The observed distribution of inclusion pressures cannot be explained by either zircon metamictization, or by the presence of fluids in the inclusions. Comparison of the measured inclusion strains with numerical simulations shows that post-entrapment plastic relaxation of garnet from metamorphic peak conditions down to 0.5 GPa and 600–650 °C, on the retrograde path, best explains the measured inclusion pressures and their disagreement with the results of phase equilibria modelling. This study suggests that the zircon-garnet couple is more reliable at relatively low temperatures (textless 600 °C), where entrapment conditions are well preserved but chemical equilibration might be sluggish. On the other hand, thermodynamic modelling appears to be better suited for higher temperatures where rock-scale equilibrium can be achieved more easily but the local plasticity of the host-inclusion system might prevent the preservation of the signal of peak metamorphic conditions in the stress state of inclusions. Currently, we cannot define a precise threshold temperature for resetting of inclusion pressures. However, the application of both chemical and elastic thermobarometry allows a more detailed interpretation of metamorphic P–T paths.},

keywords = {Elastic thermobarometry, Garnet, metamorphic rocks, petrology, Raman spectroscopy, Raman thermobarometry, Zircon},

pubstate = {published},

tppubtype = {article}

}

@article{Alvaro2020,

title = {Fossil subduction recorded by quartz from the coesite stability field},

author = {M. Alvaro and M. L. Mazzucchelli and Ross John Angel and M. Murri and N. Campomenosi and M. Scambelluri and F. Nestola and A. Korsakov and A. A. Tomilenko and F. Marone and M. Morana},

url = {https://doi.org/10.1130/G46617.1},

doi = {10.1130/G46617.1},

issn = {19432682},

year  = {2020},

date = {2020-01-01},

urldate = {2020-01-01},

journal = {Geology},

volume = {48},

number = {1},

pages = {24--28},

abstract = {Metamorphic rocks are the records of plate tectonic processes whose reconstruction relies on correct estimates of the pressures and temperatures (P-T) experienced by these rocks through time. Unlike chemical geothermobarometry, elastic geobarometry does not rely on chemical equilibrium between minerals, so it has the potential to provide information on overstepping of reaction boundaries and to identify other examples of non-equilibrium behavior in rocks. Here we introduce a method that exploits the anisotropy in elastic properties of minerals to determine the unique P and T of entrapment from a single inclusion in a mineral host. We apply it to preserved quartz inclusions in garnet from eclogite xenoliths hosted in Yakutian kimberlites (Russia). Our results demonstrate that quartz trapped in garnet can be preserved when the rock reaches the stability field of coesite (the high-pressure and hightemperature polymorph of quartz) at 3 GPa and 850 °C. This supports a metamorphic origin for these xenoliths and sheds light on the mechanisms of craton accretion from a subducted crustal protolith. Furthermore, we show that interpreting P and T conditions reached by a rock from the simple phase identification of key inclusion minerals can be misleading.},

keywords = {Deviatoric stress, Elastic anisotropy, Elastic thermobarometry, petrology, Raman thermobarometry, Single-crystal X-ray diffraction},

pubstate = {published},

tppubtype = {article}

}

@article{Nestola2019,

title = {Diamond-inclusion system recording old deep lithosphere conditions at Udachnaya (Siberia)},

author = {Fabrizio Nestola and Gabriele Zaffiro and Mattia Luca Mazzucchelli and Paolo Nimis and Giovanni B. Andreozzi and Benedetta Periotto and Francesco Princivalle and Davide Lenaz and Luciano Secco and Leonardo Pasqualetto and Alla M. Logvinova and Nikolay V. Sobolev and Alessandra Lorenzetti and Jeffrey W. Harris},

url = {https://doi.org/10.1038/s41598-019-48778-x},

doi = {10.1038/s41598-019-48778-x},

issn = {2045-2322},

year  = {2019},

date = {2019-12-01},

urldate = {2019-12-01},

journal = {Scientific Reports},

volume = {9},

number = {1},

keywords = {Diamond, Elastic thermobarometry, equations of state, petrology, Single-crystal X-ray diffraction},

pubstate = {published},

tppubtype = {article}

}

@article{Anzolini2019,

title = {Depth of diamond formation obtained from single periclase inclusions},

author = {Chiara Anzolini and Fabrizio Nestola and Mattia Luca Mazzucchelli and Matteo Alvaro and Paolo Nimis and Andrea Gianese and Simone Morganti and Federica Marone and Marcello Campione and Mark T. Hutchison and Jeffrey W. Harris},

url = {https://pubs.geoscienceworld.org/gsa/geology/article/47/3/219/568391/Depth-of-diamond-formation-obtained-from-single},

doi = {10.1130/G45605.1},

issn = {0091-7613},

year  = {2019},

date = {2019-03-01},

urldate = {2019-03-01},

journal = {Geology},

volume = {47},

number = {3},

pages = {219--222},

keywords = {Diamond, Elastic thermobarometry, FEM, Finite element method, petrology, Single-crystal X-ray diffraction},

pubstate = {published},

tppubtype = {article}

}

@article{Angel2015JMGb,

title = {How large are departures from lithostatic pressure? Constraints from host–inclusion elasticity},

author = {Ross John Angel and P Nimis and Mattia Luca Mazzucchelli and M Alvaro and Fabrizio Nestola},

url = {http://dx.doi.org/10.1111/jmg.12138},

doi = {10.1111/jmg.12138},

year  = {2015},

date = {2015-01-01},

urldate = {2015-01-01},

journal = {Journal of Metamorphic Geology},

volume = {33},

number = {8},

pages = {801--813},

keywords = {Diamond, Elastic thermobarometry, Elasticity, equations of state, metamorphic rocks, petrology},

pubstate = {published},

tppubtype = {article}

}

@article{Milani2015,

title = {Diamond–garnet geobarometry: The role of garnet compressibility and expansivity},

author = {Sula Milani and Fabrizio Nestola and Matteo Alvaro and Daria Pasqual and Mattia Luca Mazzucchelli and M C Domeneghetti and C A Geiger},

url = {http://www.sciencedirect.com/science/article/pii/S0024493715001097},

doi = {10.1016/j.lithos.2015.03.017},

year  = {2015},

date = {2015-01-01},

urldate = {2015-01-01},

journal = {Lithos},

volume = {227},

number = {0},

pages = {140--147},

keywords = {Crystallography, Diamond, Elastic thermobarometry, equations of state, Experiments, Garnet, petrology, Raman thermobarometry, Single-crystal X-ray diffraction, thermal expansion, thermodynamics},

pubstate = {published},

tppubtype = {article}

}

@article{Angel2015diamond,

title = {Diamond thermoelastic properties and implications for determining the pressure of formation of diamond–inclusion systems},

author = {Ross John Angel and Matteo Alvaro and Fabrizio Nestola and Mattia Luca Mazzucchelli},

doi = {10.1016/j.rgg.2015.01.014},

year  = {2015},

date = {2015-01-01},

urldate = {2015-01-01},

journal = {Russian Geology and Geophysics},

volume = {56},

number = {1-2},

pages = {211--220},

keywords = {Diamond, Elastic thermobarometry, Elasticity, equations of state, petrology, thermodynamics},

pubstate = {published},

tppubtype = {article}

}