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Shearing of synsedimentary carbonate breccia along strike-slip faults, Altamura Fm., southern Italy

Salvatore Laurita, Fabrizio Agosta, Francesco Cavalcante, Andrea Rustichelli and Maurizio Giorgioni
Shearing of synsedimentary carbonate breccia along strike-slip faults, Altamura Fm., southern Italy (in Fractured carbonate reservoirs, Emanuele Tondi (editor), A. Iannace (editor), Fabrizio Storti (editor), M. Antonellini (editor), Fabrizio Agosta (editor) and S. Mazzoli (editor))
Italian Journal of Geosciences (February 2016) 135 (1): 41-54


Fault breccia present along strike-slip faults was studied by mean of an integrated field and laboratory investigation. In particular, samples of sheared pre-existing, syn-sedimentary gravitative breccia were detailed studied in order to decipher the deformation mechanisms associated to strike-slip faulting. The sheared gravitative breccia is made up of matrix-supported, monomictic, unsorted intraformational fragments embedded within a reddish hematite-rich, clayish matrix. Microsparry calcite cement is also present around the limestone fragments. In contrast, tectonic breccia consists of comminuted limestone fragments embedded in a calcite-rich matrix also including small amounts of reddish matrix. Particle shape analysis of representative images of the study hand specimens shows a variability of the box-counting dimension (D (sub 0) -value) between the two different types of breccias, which can be explained in terms of peculiar strain localization within a threefold aggregate that characterizes the gravitative breccia, which is made up of calcite fragments, clayish matrix and very minute oxides.

ISSN: 2038-1719
EISSN: 2038-1727
Serial Title: Italian Journal of Geosciences
Serial Volume: 135
Serial Issue: 1
Title: Shearing of synsedimentary carbonate breccia along strike-slip faults, Altamura Fm., southern Italy
Title: Fractured carbonate reservoirs
Author(s): Laurita, SalvatoreAgosta, FabrizioCavalcante, FrancescoRustichelli, AndreaGiorgioni, Maurizio
Author(s): Tondi, Emanueleeditor
Author(s): Iannace, A.editor
Author(s): Storti, Fabrizioeditor
Author(s): Antonellini, M.editor
Author(s): Agosta, Fabrizioeditor
Author(s): Mazzoli, S.editor
Affiliation: University of Basilicata, Department of Science, Italy
Pages: 41-54
Published: 201602
Text Language: English
Publisher: Societa Geologica Italiana, Rome, Italy
References: 58
Accession Number: 2016-016650
Categories: Structural geologySedimentary petrology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. geol. sketch map
N40°30'00" - N41°15'00", E16°00'00" - E17°34'60"
Secondary Affiliation: University of Camerino, ITA, ItalyInstitute of Methodology for Environmental Analyses, ITA, ItalyShell Italia E&P, ITA, Italy
Country of Publication: Italy
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Abstract, Copyright, Societa Geologica Italiana. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 201609
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