Ring-shear test data of feldspar sand from the CNR-IGG Tectonic Modelling Laboratory at the University of Florence (Italy)

Zwaan, Frank; Rudolf, Michael; Pohlenz, Andre; Corti, Giacomo; Keir, Derek; Sani, Federico (2020). Ring-shear test data of feldspar sand from the CNR-IGG Tectonic Modelling Laboratory at the University of Florence (Italy) [Dataset]. Potsdam: GFZ Data Services

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This dataset provides internal data from ring-shear tests (RST) on a feldspar sand material that has been used in tectonic experiments by among others Montanari et al. (2017) and Zwaan et al. (2020) in the Tectonic Modelling Laboratory of CNR-IGG at the Earth Sciences Department of the University of Florence (Italy) as an analogue for brittle layers in the crust. The material has been characterized by means of internal friction coefficients μ and cohesions C as a remote service by the Helmholtz Laboratory for Tectonic Modelling (HelTec) at the GFZ German Research Centre for Geosciences in Potsdam for the Tectonic Modelling Laboratory of CNR-IGG at the Earth Sciences Department of the University of Florence (CNR-UF). According to our analysis the material behaves as a Mohr-Coulomb material characterized by a linear failure envelope. Internal peak, dynamic and reactivation friction coefficients are μP= 0.72, μD= 0.67, and μR= 0.72 respectively. Internal cohesions C are in the range of 60 to 120 Pa. Note however that these values differ from those reported by Montanari et al. (2017), who used empirical methods to determine material properties and find a friction angle of ca. 57˚ (i.e. a friction coefficient of ca. 1.5).

Item Type:

Dataset

Division/Institute:

08 Faculty of Science > Institute of Geological Sciences
08 Faculty of Science > Institute of Geological Sciences > Tectonics

UniBE Contributor:

Zwaan, Frank

Subjects:

500 Science > 550 Earth sciences & geology

Publisher:

GFZ Data Services

Funders:

[4] Swiss National Science Foundation

Projects:

[UNSPECIFIED] The breaking up of continents: the Western Afar Margin as a case study

Language:

English

Submitter:

Frank Zwaan

Date Deposited:

11 Sep 2020 15:21

Last Modified:

11 Sep 2020 15:21

Related URLs:

BORIS DOI:

10.7892/boris.146494

URI:

https://boris.unibe.ch/id/eprint/146494

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