Publications

@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{Mazzucchelli2019,

title = {Elastic geobarometry for anisotropic inclusions in cubic hosts},

author = {Mattia Luca Mazzucchelli and A. Reali and S. Morganti and Ross John Angel and Alvaro M},

url = {https://doi.org/10.1016/j.lithos.2019.105218},

doi = {10.1016/j.lithos.2019.105218},

issn = {00244937},

year  = {2019},

date = {2019-10-01},

urldate = {2019-10-01},

journal = {Lithos},

pages = {105218},

keywords = {Deviatoric stress, Elastic anisotropy, Elastic thermobarometry, FEM, Finite element method},

pubstate = {published},

tppubtype = {article}

}

@article{murri_raman_2018,

title = {Raman elastic geobarometry for anisotropic mineral inclusions},

author = {Mara Murri and Mattia Luca Mazzucchelli and Nicola Campomenosi and Andrey V. Korsakov and Mauro Prencipe and Boriana D. Mihailova and Marco Scambelluri and Ross John Angel and Matteo Alvaro},

url = {https://doi.org/10.2138/am-2018-6625CCBY},

doi = {10.2138/am-2018-6625CCBY},

issn = {0003004X},

year  = {2018},

date = {2018-11-01},

urldate = {2018-11-01},

journal = {American Mineralogist},

volume = {103},

number = {11},

pages = {1869--1872},

keywords = {ab-initio, Density Functional Theory, Deviatoric stress, DFT, Elastic anisotropy, Elastic thermobarometry, metamorphic rocks, Raman spectroscopy, Raman thermobarometry},

pubstate = {published},

tppubtype = {article}

}