% IMPORTANT: The following is UTF-8 encoded.  This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.

@ARTICLE{Kock:873443,
      author       = {Kock, Sebastian T. and Schittek, Karsten and Lücke,
                      Andreas and Maldonado, Antonio and Mächtle, Bertil},
      title        = {{G}eomorphodynamics as recorded in a high-{A}ndean cushion
                      peatland of the western {C}hilean {C}entral {A}ndes (27°
                      {S}) during the last 1800 cal. yr {BP}},
      journal      = {Zeitschrift für Geomorphologie},
      volume       = {62},
      number       = {1},
      issn         = {1864-1687},
      address      = {Stuttgart},
      publisher    = {Schweizerbart},
      reportid     = {FZJ-2020-00720},
      pages        = {183 - 205},
      year         = {2019},
      abstract     = {Due to their location at the southern margin of the Arid
                      Diagonal, only a limited number of archives in the western
                      Central Andes of Chile is capable for paleoclimate
                      investigations. High-altitude cushion peatlands are
                      potentially suitable to fill this gap despite their
                      heterogenic stratigraphies representing past
                      geomorphodynamics, especially for the Late Holocene. We
                      investigated a 4 m sediment profile from the Lagunillas
                      cushion peatland (LP, 27° 12' S, 69° 17' W), located in
                      the dry Puna of the Western Central Andes. Directed by
                      Electrical Resistivity Tomography (ERT) measurements,
                      sediment cores were recovered at the deepest point of the
                      investigated valley section. In total, 10 radiocarbon
                      samples were used to build the age-depth model resulting in
                      a sediment chronology spanning the last 1800 cal. yr BP.
                      Core stratigraphy and ERT data were applied to allow
                      insights into the sedimentary environment. Geochemical
                      (X-ray fluorescence) and sedimentological (grain size)
                      analyses were conducted to identify significant changes in
                      sedimentation dynamics during the Late Holocene. Grain size
                      analyses were investigated on 24 samples from peat layers as
                      well as from stratigraphical sections characterized by
                      allochthonous sediments. In combination with the results of
                      the XRF measurements, evidence for changes in
                      geomorphodynamic processes during the last 1800 cal. yr BP
                      could be revealed. Our data disclose that investigations of
                      heterogenic peat stratigraphies could also provide promising
                      inferences about paleoclimatic changes. Within the
                      Lagunillas record, stable phases of peat accumulation
                      alternate with phases dominated by clastic material input. A
                      stable phase of peat accumulation prevailed from 1750 cal.
                      yr BP until about 1250 cal. yr BP and was followed by a
                      phase with unstable conditions from 1250 to 980 cal. yr BP.
                      During the Medieval Climate Anomaly (MCA) between 980 to 620
                      cal. yr BP, drier conditions prevailed at Lagunillas
                      peatland, while shorter humid periods favored peat
                      accumulation between 620 to 560 cal. yr BP. Higher
                      precipitation amounts were evident during the Little Ice Age
                      (LIA) from 560 –160 cal. yr BP. During the period from 160
                      cal. yr BP to recent times, a higher frequency of changes
                      between peat accumulation and clastic layers occurred,
                      presumably due to a decreasing trend in precipitation.},
      cin          = {IBG-3},
      ddc          = {550},
      cid          = {I:(DE-Juel1)IBG-3-20101118},
      pnm          = {255 - Terrestrial Systems: From Observation to Prediction
                      (POF3-255)},
      pid          = {G:(DE-HGF)POF3-255},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000476620100009},
      doi          = {10.1127/zfg_suppl/2019/0537},
      url          = {https://juser.fz-juelich.de/record/873443},
}