Publications

@article{gonzalez_elastic_2021,

title = {Elastic Geobarometry for Anisotropic Inclusions in Anisotropic Host Minerals: Quartz-in-Zircon},

author = {Joseph P. Gonzalez and Mattia L. Mazzucchelli and Ross J. Angel and Matteo Alvaro},

url = {https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2021JB022080},

doi = {10.1029/2021JB022080},

issn = {2169-9356},

year  = {2021},

date = {2021-01-01},

urldate = {2021-01-01},

journal = {Journal of Geophysical Research: Solid Earth},

volume = {126},

number = {6},

pages = {e2021JB022080},

abstract = {Current models for elastic geobarometry have been developed with the assumption that the host and/or inclusion minerals are elastically isotropic. This assumption has limited applications of elastic thermobarometry to mineral inclusions contained in cubic quasi-isotropic host minerals (e.g., garnet). Here, we report a new elastic model that takes into account the anisotropic elastic properties and relative crystallographic orientation (RCO) of a host-inclusion system where both minerals are noncubic. This anisotropic elastic model can be used for host-inclusion elastic thermobarometric calculations provided that the RCO and elastic properties of both the host and inclusion are known. We then used this anisotropic elastic model to numerically evaluate the effects of elastic anisotropy and RCO on the strains and stresses developed in a quartz inclusion entrapped in a zircon host after exhumation from known entrapment P-T conditions to room P-T conditions. We conclude that the anisotropic quartz-in-zircon elastic model is suitable for elastic thermobarometry and may be widely applicable to crustal rocks. Our results demonstrate that isotropic elastic models cannot be used to determine the entire strain state of an elastically anisotropic inclusion contained in an elastically anisotropic host mineral, and therefore may lead to errors on estimated remnant inclusion pressures.},

keywords = {Elastic anisotropy, Elastic thermobarometry, FEM, Finite element method, Quartz, Zircon},

pubstate = {published},

tppubtype = {article}

}

@article{Morganti2020,

title = {A numerical application of the Eshelby theory for geobarometry of non-ideal host-inclusion systems},

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

url = {http://link.springer.com/10.1007/s11012-020-01135-z},

doi = {10.1007/s11012-020-01135-z},

issn = {0025-6455},

year  = {2020},

date = {2020-02-01},

urldate = {2020-02-01},

journal = {Meccanica},

pages = {1--14},

abstract = {In the complex geodynamic processes occurring at convergent plate margins, rocks can be subducted at depth into the Earth experiencing metamorphism. A mineral inhomogeneity entrapped into another mineral, after exhumation to the Earth surface, will exhibit stress and strain fields different from those of the host because of the different thermoelastic properties. In the present paper, we propose a finite-element-based approach to determine the Eshelby and the relaxations tensors for any morphology of the inhomogeneity and for any crystallographic symmetry of the host. The proposed procedure can be directly applied in the framework of elastic geobarometry to estimate, on the basis of the Eshelby theory, the entrapment conditions (pressure and temperature) from the residual strain field measured in the inhomogeneity. This aspect represents a step forward to currently available models for geobarometry allowing the investigation of complex morphologies of the inhomogeneity in systems with general material anisotropy. We validate the proposed approach versus Eshelby analytical solutions available for spherical and ellipsoidal inclusions and we show the application to a real geological case of high pressure metamorphic rocks.},

keywords = {Elastic anisotropy, Elastic thermobarometry, Elasticity, FEM, Finite element method, Mechanics},

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{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{Mazzucchelli2018,

title = {Elastic geothermobarometry: Corrections for the geometry of the host-inclusion system},

author = {Mattia Luca Mazzucchelli and P. Burnley and Ross John Angel and S. Morganti and M. C. C Domeneghetti and F. Nestola and M. Alvaro},

url = {https://pubs.geoscienceworld.org/gsa/geology/article/46/3/231/526077/Elastic-geothermobarometry-Corrections-for-the},

doi = {10.1130/G39807.1},

issn = {0091-7613},

year  = {2018},

date = {2018-03-01},

urldate = {2018-03-01},

journal = {Geology},

volume = {46},

number = {3},

pages = {231--234},

keywords = {Elastic thermobarometry, Elasticity, FEM, Finite element method},

pubstate = {published},

tppubtype = {article}

}