Show simple item record

dc.contributor.author
Morales, Luiz F. G.
dc.date.accessioned
2022-08-04T12:37:16Z
dc.date.available
2022-08-04T04:55:10Z
dc.date.available
2022-08-04T12:37:16Z
dc.date.issued
2022
dc.identifier.issn
0003-004X
dc.identifier.issn
1945-3027
dc.identifier.other
10.2138/am-2021-7902
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/561772
dc.description.abstract
Interphase boundaries are planar defects that separate two different minerals, which in general have different compositions and/or crystalline structures; they may play an important role as a pathway for fluids in rocks and affect their physical properties. To completely characterize interphase boundaries, one needs to define the misorientation between adjacent grains and the orientation of the grain boundary plane. The analysis performed here is limited to the misorientation characterization and the trace of the interphase boundary. Although the determination of possible orientation relationships between the two adjacent phases is routinely performed by selected-area electron diffraction in a transmission electron microscope, this method lacks statistical representativeness. With the advent of techniques like electron backscatter diffraction (EBSD), it is possible to calculate orientation relationships not only in single pairs of crystals of the same phase but in full thin sections and between different minerals. The interphase misorientation is calculated from two orientations of two adjacent crystals of different phases. A set of single misorientations is then used to calculate the misorientation distribution function (MDF), from where it is possible to identify a maximum and its crystallographic interpretation. If we then know the misorientation and the unit-cell parameters of the individual phases, the crystallographic relationships between the different phases can be described with the pairs of parallel crystallographic planes and the pairs of crystallographic directions. In this paper, I present examples of the use of interphase misorientation analysis on the transformation of calcite-aragonite, olivine-antigorite, magnetite-hematite, and on the study of orientation relationships between plagioclase-olivine-ilmenite in mid-ocean ridges gabbros (ODP Hole 735).
en_US
dc.language.iso
en
en_US
dc.publisher
Mineralogical Society of America
en_US
dc.subject
Interphase misorientation
en_US
dc.subject
EBSD
en_US
dc.subject
orientation relationships
en_US
dc.subject
phase transformation
en_US
dc.title
Interphase misorientation as a tool to study metamorphic reactions and crystallization in geological materials
en_US
dc.type
Journal Article
dc.date.published
2022-08-01
ethz.journal.title
The American Mineralogist
ethz.journal.volume
107
en_US
ethz.journal.issue
8
en_US
ethz.journal.abbreviated
Am. Mineral.
ethz.pages.start
1501
en_US
ethz.pages.end
1518
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Chantilly, VA
en_US
ethz.publication.status
published
en_US
ethz.relation.isNewVersionOf
20.500.11850/517136
ethz.date.deposited
2022-08-04T04:56:25Z
ethz.source
WOS
ethz.eth
yes
en_US
ethz.availability
Metadata only
en_US
ethz.rosetta.installDate
2022-08-04T12:37:28Z
ethz.rosetta.lastUpdated
2022-08-04T12:37:28Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.atitle=Interphase%20misorientation%20as%20a%20tool%20to%20study%20metamorphic%20reactions%20and%20crystallization%20in%20geological%20materials&rft.jtitle=The%20American%20Mineralogist&rft.date=2022&rft.volume=107&rft.issue=8&rft.spage=1501&rft.epage=1518&rft.issn=0003-004X&1945-3027&rft.au=Morales,%20Luiz%20F.%20G.&rft.genre=article&rft_id=info:doi/10.2138/am-2021-7902&
 Search print copy at ETH Library

Files in this item

FilesSizeFormatOpen in viewer

There are no files associated with this item.

Publication type

Show simple item record