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@ARTICLE{Almeida:189442,
      author       = {Almeida, Trevor P. and Muxworthy, Adrian R. and Williams,
                      Wyn and Kasama, Takeshi and Dunin-Borkowski, Rafal},
      title        = {{M}agnetic characterization of synthetic titanomagnetites:
                      {Q}uantifying the recording fidelity of ideal synthetic
                      analogs},
      journal      = {Geochemistry, geophysics, geosystems},
      volume       = {15},
      number       = {1},
      issn         = {1525-2027},
      address      = {Hoboken, NJ},
      publisher    = {Wiley},
      reportid     = {FZJ-2015-02609},
      pages        = {161 - 175},
      year         = {2014},
      abstract     = {A series of four synthetic basalts comprising
                      titanomagnetite (Fe3-xTixO4) grains of varied size and
                      titanium content have been produced by a glass-ceramic
                      method. Complementary characterization techniques of X-ray
                      diffractometry, secondary electron microscopy, and
                      transmission electron microscopy (TEM) demonstrate the
                      reaction product composition consisted of mainly Fe3-xTixO4,
                      pyroxene hedenbergite, fayalite, and SiO2. The samples
                      exhibit bimodal distributions of larger (<2 µm) and smaller
                      Fe3-xTixO4 particles (<50 nm in diameter), the latter found
                      inside pyroxene crystals, as well as the sporadic occurance
                      of dendritic Fe3-xTixO4 structures. Magnetic measurements
                      show their bulk characteristics fall into two groups:
                      Ti-rich titanomagnetite samples with varying Ti content; and
                      near-stoichiometric magnetite. The TEM technique of off-axis
                      electron holography allowed for visualization of the
                      magnetic behavior of the synthetic Fe3-xTixO4 grains. Energy
                      dispersive X-ray analysis and off-axis electron holography
                      confirmed the small Fe3-xTixO4 grains (<50 nm) confined
                      within glassy pyroxene regions to be Fe-rich and single
                      domain, carrying strong magnetic signals, compared to the
                      relatively magnetically weak larger Fe3-xTixO4 grains (x ∼
                      0.6). The large grains in the pure magnetite sample are
                      shown to be pseudo-single domain in nature. The quenching
                      process involved in synthesis is considered similar to that
                      of pillow basalts found at mid-ocean ridges and hence the
                      reaction products are thought ideal in terms of
                      characterization and understanding, for the purpose of
                      studying natural systems.},
      cin          = {PGI-5},
      ddc          = {550},
      cid          = {I:(DE-Juel1)PGI-5-20110106},
      pnm          = {42G - Peter Grünberg-Centre (PG-C) (POF2-42G41)},
      pid          = {G:(DE-HGF)POF2-42G41},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000331441500010},
      doi          = {10.1002/2013GC005047},
      url          = {https://juser.fz-juelich.de/record/189442},
}