Data Publication

Microscopic and spectroscopic data of pseudotachylytes and wall rocks from the Moncuni ophiolite

Oliver Plümper

Utrecht University

(2020)

Descriptions

We investigated the microstructures and geochemistry of pseudotachylytes found within the ophiolitic peridotites and gabbros from the Moncuni area (Lanzo Ultramafic Massif, Western Alps). The pseudotachylytes preserve dry glass and pristine microlites. The presence of garnet and the static development of eclogite-facies assemblages in local hydrated domains indicate that pseudotachylytes experienced subduction conditions of 600 °C and 2.1 GPa. Samples were investigated using optical and scanning electron microscopic imaging as well as electron backscatter diffraction, Raman and IR spectroscopy, single-crystal X-ray diffraction and microprobe analysis. Based on the analysis of the pseudotachylytes and associated wall-rocks, we suggest that the Moncuni body can be regarded as representative for the rheological behaviour during subduction of seismically active, dry, lithosphere. The data is organised in 8 folders termed Figure X, where X is the figure number in the primary publication. One folder is titled Supplements containing 5 subfolders equivalent to the supplementary material in the primary publication. Detailed information about the files and methods used is given in a readme file.

Keywords


Originally assigned keywords
FOS: Earth and related environmental sciences
earthquakes
ophiolite
pseudotachylyte
subduction zone
mylonite
Western Alps
Lanzo Ultramafic Massif
gabbro
peridotite
geothermobarometry
microstructures
multi-scale laboratories
EPOS

Corresponding MSL vocabulary keywords
ophiolite
pseudotachylite
subduction
mylonite
mylonite
gabbro
peridotite

MSL enriched keywords
tectonic plate boundary
convergent tectonic plate boundary
obduction
ophiolite
fault rock
pseudotachylite
subduction
metamorphic rock
mylonite
mylonite
igneous rock - intrusive
basic intrusive
gabbro
ultrabasic intrusive
peridotite
eclogite
minerals
silicate minerals
nesosilicates
garnet
Earth's structure
lithosphere
equipment
electron probe micro-analyzer
Apparatus
microchemical analysis
electron probe micro analyser
Technique
imaging (3D)
computed tomography (CT)
X-ray diffraction
chemical and mineralogical analysis
Raman spectrometry - chemistry and mineralogy
crystal structure analysis
electron diffraction
electron backscatter diffraction (EBSD)
Raman spectrometry - crystal lattice

Metadata


MSL enriched sub domains

geochemistry
microscopy and tomography

Resource Type

Other Document


Source

https://public.yoda.uu.nl/geo/UU01/RVRHHE.html

Source publisher

Utrecht University

DOI

10.24416/uu01-rvrhhe

Creators

Oliver Plümper
Personal
Utrecht University

Contributors

Pennacchioni, Giorgio
Personal
University of Padova
Bestmann, Michel
Personal
GeoZentrum Nordbayern
Notini, Luca
Personal
University of Genova
Nimis, Paolo
Personal
University of Padova
Faccenda, Manuele
Personal
University of Padova
Nestola, Fabrizio
Personal
University of Padova
Scambelluri, Marco
Personal
Utrecht University

Citation

Plümper, O. (2020). Microscopic and spectroscopic data of pseudotachylytes and wall rocks from the Moncuni ophiolite. Utrecht University. https://doi.org/10.24416/UU01-RVRHHE


References

https://doi.org/DOI

Dates

Issued 2020-07-24T11:09:06
Updated 2024-07-12T11:07:45
Collected 2015-10-01/2018-10-31

Language

en


Funding References

Funder Name University of Padova
Funder Name EC HORIZON 2020
Funder Name Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO)

Rights

Name Open - freely retrievable
URI info:eu-repo/semantics/openAccess
Name Creative Commons Attribution 4.0 International
URI https://creativecommons.org/licenses/by/4.0/legalcode
Identifier cc-by-4.0
Identifier Scheme SPDX
Scheme URI https://spdx.org/licenses/

Locations


Geo location(s)

7.409973°E, 45.050002°N

7.412997°E, 45.047559°N

7.410229°E, 45.049044°N

7.410035°E, 45.050001°N

7.412919°E, 45.048250°N

7.410033°E, 45.049389°N