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@ARTICLE{Dutta:201160,
      author       = {Dutta, Suryendu and Hartkopf-Fröder, Christoph and Witte,
                      Karin and Brocke, Rainer and Mann, Ulrich},
      title        = {{M}olecular characterization of fossil palynomorphs by
                      transmission micro-{FTIR} spectroscopy: {I}mplications for
                      hydrocarbon source evaluation},
      journal      = {International journal of coal geology},
      volume       = {115},
      issn         = {0166-5162},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier},
      reportid     = {FZJ-2015-03465},
      pages        = {13 - 23},
      year         = {2013},
      abstract     = {Transmission micro-FTIR spectroscopy has been conducted to
                      elucidate the macromolecular structure of well-preserved
                      fossil palynomorphs including prasinophycean algae,
                      megaspores, chitinozoans, and scolecodonts. Plant and
                      arthropod cuticles which may be present in palynological
                      residues have also been investigated. Important differences
                      are noted among these palynomorph groups regarding the
                      intensities of CHx, Cdouble bond; length as m-dashO and
                      aromatic Cdouble bond; length as m-dashC absorptions.
                      Tasmanites, Leiosphaeridia, and plant cuticles are
                      characterized by stronger aliphatic CHx stretching
                      (3000–2800 cm− 1), strong CH3 (1460–1450 cm− 1), and
                      intense Cdouble bond; length as m-dashO group (1710–1700
                      cm− 1) absorptions. Aromatic Cdouble bond; length as
                      m-dashC stretching (1610–1560 cm− 1) absorptions are
                      less intense and aromatic CH out of plane (900–750 cm−
                      1) absorptions are absent. In contrast, chitinozoans,
                      scolecodonts, and arthropod cuticles show intense aromatic
                      Cdouble bond; length as m-dashC stretching (1620–1560
                      cm− 1) and aromatic CH out of plane (900–750 cm− 1)
                      absorptions. Aliphatic CHx stretching (3000–2800 cm− 1)
                      and Cdouble bond; length as m-dashO group (1710–1700 cm−
                      1) absorptions are less intense. Megaspores are
                      characterized by stronger aliphatic CHx stretching
                      (3000–2800 cm− 1), strong CH3 (1460–1450 cm− 1), and
                      moderate aromatic Cdouble bond; length as m-dashC stretching
                      (1610–1560 cm− 1) and Cdouble bond; length as m-dashO
                      group (1710–1700 cm− 1) absorptions. The CH2/CH3
                      intensity ratio has been used to assess the relative chain
                      length and degree of branching. The aliphatic components in
                      Tasmanites, Leiosphaeridia, and plant cuticles are longest
                      chained and least branched whereas those in chitinozoans,
                      scolecodonts, and arthropod cuticles are shortest chained
                      and most branched. Megaspores show intermediate CH2/CH3
                      ratio. The present study demonstrates that palynomorphs
                      differ in functional group chemistry and this spectroscopic
                      technique can be useful to assign biological affinity of
                      enigmatic palynomorphs. Furthermore, micro-FTIR spectroscopy
                      provides insights into the hydrocarbon generating potential
                      of different fossil palynomorph groups.},
      cin          = {IBG-3},
      ddc          = {550},
      cid          = {I:(DE-Juel1)IBG-3-20101118},
      pnm          = {246 - Modelling and Monitoring Terrestrial Systems: Methods
                      and Technologies (POF2-246) / 255 - Terrestrial Systems:
                      From Observation to Prediction (POF3-255)},
      pid          = {G:(DE-HGF)POF2-246 / G:(DE-HGF)POF3-255},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000322611100002},
      doi          = {10.1016/j.coal.2013.04.003},
      url          = {https://juser.fz-juelich.de/record/201160},
}