气候变化领域集成服务门户(CCPortal): 3D reconstruction of fabric and metamorphic domains in a slice of continental crust involved in the Alpine subduction system: the example of Mt. Mucrone (Sesia

CCPortal

DOI	10.1007/s00531-019-01807-6
	3D reconstruction of fabric and metamorphic domains in a slice of continental crust involved in the Alpine subduction system: the example of Mt. Mucrone (Sesia–Lanzo Zone; Western Alps)
	Zucali M.; Corti L.; Delleani F.; Zanoni D.; Spalla M.I.
发表日期	2020
ISSN	14373254
起始页码	1337
结束页码	1354
卷号	109 期号:4
英文摘要	Geological mapping, multiscale structural analysis, and estimations of the degree of fabric evolution and of reaction progress allow the construction of a 3D quantitative model of structural and metamorphic gradients in a portion of continental crust deeply involved in the Alpine subduction system and mainly structured under eclogite-facies conditions before the continental collision. The investigated and modelled rocks outcrop in the surroundings of Mt. Mucrone, in the central Sesia–Lanzo Zone. The Geomodeller® software allowed a quantitative 3D estimation of domains characterized by homogeneous fabric evolution and metamorphic reaction progress (DFE and DRP, respectively) for two of the seven structural and metamorphic imprints detected in this area: the D2-eclogitic and D5-greenschist stages, which are the most pervasive at km scale. Such a 3D modelling clarifies mutual relationships between fabric and metamorphic gradients and indicates that: (i) DFE and DRP are closely related regardless of the rock type; (ii) the syn-deformational thermal regime can influence the degree of metamorphic transformation, if DFE remains below the 60% threshold; (iii) the phase transitions can not be properly implemented in quantitative geodynamic modelling without considering the heterogeneity of reaction progress and fabric evolution. © 2020, Geologische Vereinigung e.V. (GV).
英文关键词	Austroalpine domain; Eclogitized granitoids; Metamorphic reaction progress; Strain partitioning
语种	英语
scopus关键词	continental collision; continental margin; heterogeneity; reconstruction; subduction zone; tectonic evolution; three-dimensional modeling; Alps; Western Alps
来源期刊	International Journal of Earth Sciences
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/147679
作者单位	Dipartimento di Scienze della Terra “Ardito Desio”, Università degli Studi di Milano, Via Mangiagalli 34, Milan, 20133, Italy; Department of Earth and Atmospheric Sciences, University of Houston, Houston, TX, United States
推荐引用方式 GB/T 7714	Zucali M.,Corti L.,Delleani F.,等. 3D reconstruction of fabric and metamorphic domains in a slice of continental crust involved in the Alpine subduction system: the example of Mt. Mucrone (Sesia–Lanzo Zone; Western Alps)[J],2020,109(4).
APA	Zucali M.,Corti L.,Delleani F.,Zanoni D.,&Spalla M.I..(2020).3D reconstruction of fabric and metamorphic domains in a slice of continental crust involved in the Alpine subduction system: the example of Mt. Mucrone (Sesia–Lanzo Zone; Western Alps).International Journal of Earth Sciences,109(4).
MLA	Zucali M.,et al."3D reconstruction of fabric and metamorphic domains in a slice of continental crust involved in the Alpine subduction system: the example of Mt. Mucrone (Sesia–Lanzo Zone; Western Alps)".International Journal of Earth Sciences 109.4(2020).