气候变化领域集成服务门户(CCPortal): Elastic Geobarometry for Anisotropic Inclusions in Anisotropic Host Minerals: Quartz-in-Zircon

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DOI	10.1029/2021JB022080
	Elastic Geobarometry for Anisotropic Inclusions in Anisotropic Host Minerals: Quartz-in-Zircon
	Gonzalez J.P.; Mazzucchelli M.L.; Angel R.J.; Alvaro M.
发表日期	2021
ISSN	21699313
卷号	126 期号:6
英文摘要	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. © 2021. The Authors.
英文关键词	anisotropy; elasticity; quartz; thermobarometry; zircon
语种	英语
来源期刊	Journal of Geophysical Research: Solid Earth
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/187080
作者单位	Department of Earth and Environmental Sciences, University of Pavia, Pavia, Italy; Mainz Institute of Multiscale Modeling and Institute of Geosciences, Johannes-Gutenberg University of Mainz, Mainz, Germany; IGG-CNR, Padova, Italy
推荐引用方式 GB/T 7714	Gonzalez J.P.,Mazzucchelli M.L.,Angel R.J.,et al. Elastic Geobarometry for Anisotropic Inclusions in Anisotropic Host Minerals: Quartz-in-Zircon[J],2021,126(6).
APA	Gonzalez J.P.,Mazzucchelli M.L.,Angel R.J.,&Alvaro M..(2021).Elastic Geobarometry for Anisotropic Inclusions in Anisotropic Host Minerals: Quartz-in-Zircon.Journal of Geophysical Research: Solid Earth,126(6).
MLA	Gonzalez J.P.,et al."Elastic Geobarometry for Anisotropic Inclusions in Anisotropic Host Minerals: Quartz-in-Zircon".Journal of Geophysical Research: Solid Earth 126.6(2021).