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Metadata Files

Data Publication

Electron Backscatter Diffraction (EBSD) data from metabasaltic fault rocks, Woodlark Rift, Papua New Guinea

Marcel Mizera

Utrecht University

(2020)

Descriptions

Here we provide compositional and crystallographic orientation data on metabasaltic fault rocks exhumed by the Mai’iu fault in the footwall of the Suckling-Dayman Metamorphic Core Complex, SE Papua New Guinea. The present dataset was collected with a SIGMA-VP field emission gun scanning electron microscope (FEG-SEM) equipped with an electron backscatter diffraction (EBSD) detector at the University of Otago, using 30 kV acceleration voltage, 50–100 nA beam current, 20–30 mm working distance and 70° sample tilt. Electron backscatter patterns (EBSP) for the mineral phases actinolite, epidote, titanite, albite, calcite and quartz were collected by an HKL Nordlys camera and indexed with the AZTEC software by Oxford Instruments. The analysed fault sequence includes five units: a) non-mylonitic schist (protolith); b) mylonite; c) foliated cataclasite; d) ultracataclasite; and e) gouge containing the principal displacement surface. To resolve the microstructures of this fault sequence, step sizes between 0.2 µm and 5 µm were used. This detailed dataset reveals changing deformation processes in the Mai’iu fault rocks as the footwall was exhumed towards the Earth’s surface. A processed and interpreted version of this EBSD dataset can be found in the doctoral dissertation by Mizera (2019): “Deformational Processes Accommodating Slip on an Active Low-Angle Normal Fault, Suckling-Dayman Metamorphic Core Complex, Papua New Guinea.” (http://hdl.handle.net/10063/8666). The EBSD data is provided in a folder with 25 subfolders for 25 samples. Detailed information about the sample locations is given in the file EBSD_sample_locations_and_structural_orientations.xlsx. Contact person is Marcel Mizera - Utrecht University - m.mizera@uu.nl

Keywords


Originally assigned keywords
Natural Sciences - Earth and related environmental sciences (1.5)
fault rocks
metamorphic core complex
low-angle normal fault
crystallographic orientation
electron backscatter diffraction
metabasalt
EPOS
multi-scale laboratories
rock and melt physics properties
Scanning Electron Microscope
Schist
Chlorite_actinolite_epidote_metamorphic_rock
Cataclasite_series
Breccia_gouge_series
Mylonitic_rock
Foliated_metamorphic_rock
Fault_related_material
Grain size distribution
Composition
Solid Earth > Tectonics > Earthquakes > Earthquake occurrences
Solid Earth > Tectonics > Neotectonics
Solid Earth > Tectonics > Plate Tectonics > Fault movement > Fault movement direction

Corresponding MSL vocabulary keywords
fault rock
tectonic fault
metamorphic core
crystallographic preferred orientation (CPO)
electron backscatter diffraction (EBSD)
scanning electron microscope (SEM)
schist
grain size distribution
grain size distribution
grain size distribution

MSL enriched keywords
fault rock
tectonic deformation structure
tectonic fault
tectonic plate boundary
convergent tectonic plate boundary
continental collision
metamorphic core
Analyzed feature
grain size and configuration
crystallographic preferred orientation (CPO)
Technique
crystal structure analysis
electron diffraction
electron backscatter diffraction (EBSD)
Apparatus
electron microscopy
scanning electron microscope (SEM)
metamorphic rock
schist
Measured property
grain size distribution
Measured property
grain size distribution
grain size
grain size distribution
mylonite
cataclasite
mylonite
minerals
carbonate minerals
calcite
silicate minerals
nesosilicates
titanite
sorosilicates
epidote
epidote
inosilicates
amphibole
actinolite
tectosilicates
feldspar - plagioclase
albite
quartz
elastic wave velocity
P-wave
Ancillary equipment
model surface monitoring (2D)
camera
elastic wave velocity
P-wave
normal fault
Ancillary equipment
detector

MSL enriched sub domains i

microscopy and tomography
rock and melt physics
analogue modelling of geologic processes

Source

https://public.yoda.uu.nl/geo/UU01/7GUY7K.html

Source publisher

Utrecht University


DOI

10.24416/uu01-7guy7k


Creators

Marcel Mizera

Utrecht University

ORCID:

https://orcid.org/0000-0002-6439-0103


Contributors

Little, Timothy

ProjectLeader

Victoria University of Wellington

ORCID:

https://orcid.org/0000-0002-5783-6429

Prior, David

Supervisor

University of Otago, Dunedin

ORCID:

https://orcid.org/0000-0002-4653-2112

Analytical laboratories: Otago Micro and Nanoscale Imaging (OMNI), Electron Microscopy Facility, University of Otago, Dunedin

HostingInstitution

University of Otago, Dunedin


References

http://hdl.handle.net/10063/8666


Citation

Mizera, M. (2020). Electron Backscatter Diffraction (EBSD) data from metabasaltic fault rocks, Woodlark Rift, Papua New Guinea. Utrecht University. https://doi.org/10.24416/UU01-7GUY7K


Dates

Updated:

2024-07-12T11:07:43

Collected:

2014-06-01/2018-08-01


Language

en


Funding References

Funder name: Marsden Fund


Rights

Open - freely retrievable

Creative Commons Attribution 4.0 International Public License


Datacite version

1.0


Geo location(s)

Suckling-Dayman Metamorphic Core Complex, Woodlark Rift, SE Papua New Guinea

-9.92002289439759, 148.86709733614222, -9.489566970846615, 149.66085954317347