Messanae Universitas Studiorum

Metamorfiti e magmatiti della zona di Maida (Serre settentrionali) Confronti con la Sila l'Aspromonte ed i Peloritani

Gurrieri, Silvana (1982) Metamorfiti e magmatiti della zona di Maida (Serre settentrionali) Confronti con la Sila l'Aspromonte ed i Peloritani. Accademia Peloritana dei Pericolanti - Classe di Scienze FF.MM.NN., LX (1). pp. 85-137.

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    Abstract

    The Maida area (Northen Serre) has been studied because, about it, have been made various tectonic interpretations. The metamorphites are similar (according to several authors (Dubois, Burton, Amodio-Morelli et. al., Paglionico-Piccarreta) to those of the southern Sila, of which the Maida are would represent the prosecution.
    In contrast to this hypotesis, according tu E. Zanettin Lorenzoni, the rocks of Maida area, are to be correlated with Aspromonte and Peloritani Mts.
    Two tectonic Units are studied petrographically: the lowest, essentially phylladic, and the upper one, essentially gneissic and intruded by granitic rocks (muscovite leucogranites with sillimanite). In the gneissic Unit has been recognized a poliphasic medium-high grade metamorphism, followed likely by an intrusive stage, with crystallization of pegmatites-aplites (muscuvite leucogranites with sillimanite).
    It would follow a tectonic-low grade metamorphic stage and, after, another intrusive sialic stage, with crystallization of pegmatites-aplites, analogous tu previous.
    The latest are the alpine cataclastic-mylonitic stages.
    The rocks of the lowest Unit have a complex metamorphic history, also; the $S_1$ scistosity is irregularly and closely folded; grows a $S_2$ schistosity, alwas according to axial planes.
    The comparison among Aspromonte and North Eastern Peloritani, and the Sila areas, have proved a good analogy of the metamorphic and magmatic rocks of the gneissic Unit, with the medium-high grade metamorphic rocks of NE Peloritani Mts. (Aspromonte Nappe, according to Ogniben) and Aspromonte (Intermediate Unit, according to Bonardi et al.. Mount Lesti Unit, according to Lorenzoni et al., Highest Unit, according to Pezzino-Puglisi).
    The analogies with the Sila are limited only to several litolugical types. About the lowest Unit (phylladic unit), the analogies are less meaningful and have been verified mostly in the phyllites of the southern Aspromonte «Montebello Ionico-Fossato Ionico areas).

    Item Type: Article
    Subjects: M.U.S. - Miscellanea > Atti Accademia Peloritana > Classe di Scienze Fisiche, Matematiche e Naturali > 1982
    M.U.S. - Miscellanea > Atti Accademia Peloritana > Classe di Scienze Medico-Biologiche > 1982
    M.U.S. - Miscellanea > Atti Accademia Peloritana > Classe di Lettere, Filosofia e belle Arti > 1982
    Divisions: UNSPECIFIED
    Depositing User: Dr PP C
    Date Deposited: 08 Oct 2012 15:30
    Last Modified: 08 Oct 2012 15:30
    URI: http://cab.unime.it/mus/id/eprint/1073

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