Released
Dataset

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

Cite as:

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). GFZ Data Services. https://doi.org/10.5880/fidgeo.2020.019

Status

I   N       R   E   V   I   E   W : 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). GFZ Data Services. https://doi.org/10.5880/fidgeo.2020.019

Abstract

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).

Authors

  • Zwaan, Frank;University of Florence, Florence, Italy;University of Bern, Bern, Switzerland
  • Rudolf, Michael;GFZ German Research Centre for Geosciences, Potsdam, Germany
  • Pohlenz, Andre;GFZ German Research Centre for Geosciences, Potsdam, Germany
  • Corti, Giacomo;CNR Italian National Research Council, Italy
  • Keir, Derek;University of Southampton, Southampton, UK;University of Florence, Florence, Italy
  • Sani, Federico;University of Florence, Florence, Italyrn

Contact

  • Zwaan, Frank (Postdoc Researcher) ; University of Bern, Bern, Switzerland;

Contributors

Tectonics Modelling Laboratory (IGG-CNR, Italy); HelTec - Helmholtz Laboratory for Tectonic Modelling (GFZ German Research Centre for Geosciences, Germany)

Keywords

EPOS, analogue models of geologic processes, multi-scale laboratories, Software tools, Property data of analogue modelling materials, Cohesion, Friction coefficient, Force sensor, Python, Ring-shear tester, Sand > Feldspar Sand, Cohesion, Force sensor, Friction coefficient, Python, Ring-shear tester, Sand > Feldspar Sand

Files

License: CC BY 4.0

Dataset Description

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