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@PHDTHESIS{AdriasolaMuoz:49931,
      author       = {Adriasola Muñoz, Yvonne},
      othercontributors = {Littke, Ralf},
      title        = {{T}he thermal history of the western lower {S}axony
                      {B}asin, {G}ermany},
      address      = {Aachen},
      publisher    = {Publikationsserver der RWTH Aachen University},
      reportid     = {RWTH-CONV-112499},
      pages        = {VI, 153 S. : graph. Darst., Kt.},
      year         = {2008},
      note         = {Zsfassung in dt. und engl. Sprache; Aachen, Techn.
                      Hochsch., Diss., 2007},
      abstract     = {Since about 30 years the maturity and geophysical anomalies
                      within the Lower Saxony Basin (LSB) were interpreted as a
                      result of a deep lying igneous intrusion called “Bramsche
                      Massif”. Based on the lignite/subbituminous coal stage of
                      Upper Campanian rocks overlying the Lower Cretaceous units,
                      a late Early Cretaceous or early Late Cretaceous age was
                      concluded for the time of intrusion. Vitrinite reflectances
                      for the central and southern part of the LSB confirm a low
                      reflectance increase with depth which is more likely caused
                      by deep burial of the Jurassic to Carboniferous sequence at
                      only moderate heat flows than by an igneous intrusion. Due
                      to inversion tectonics in the Coniacian/Santonian, the LSB
                      developed to the Lower Saxony Tectogene. During this
                      inversion, the basin fill was uplifted and partly thrusted
                      on the surrounding swells. Contemporaneous significant
                      erosion uncovered Triassic up to Paleozoic sediments in the
                      basin. Estimations of maximum burial depths and thicknesses
                      of then eroded sedimentary rocks range from about 3500 to
                      8000 m. The highest former overburdens were deduced for the
                      centre of the basin and mostly for Jurassic and Cretaceous
                      sequences. Towards the basin margins, erosion thicknesses
                      decrease. An explanation for the differences of eroded
                      thicknesses might be variable synsedimentary subsidence
                      within the LSB during late Jurassic and early Cretaceous
                      times due to rift and wrench tectonics. Due to the
                      extension, graben and secondary halfgraben systems were
                      formed. In the course of the compressional phase during the
                      inversion period, these areas became those with strongest
                      uplift. Investigations on zircon and apatite fission tracks
                      indicate a complex thermal history of the basin. The data
                      imply that the Lower Saxony Basin has experienced three
                      thermal heating events after the deposition of the
                      Carboniferous. Moreover, fission track ages imply that the
                      high thermal maturity of the organic matter in the centre of
                      the Lower Saxony Basin was already obtained in the Upper
                      Jurassic/Early Cretaceous. These findings would ask for much
                      higher sedimentation rates during Upper Jurassic and
                      earliest Cretaceous times than previously assumed.},
      keywords     = {Niedersächsisches Becken <West> (SWD) / Inkohlung (SWD) /
                      Erosion (SWD) / Kohlenwasserstoffe (SWD) / Inversion
                      <Geologie> (SWD)},
      cin          = {530000 / 532410},
      ddc          = {550},
      cid          = {$I:(DE-82)530000_20140620$ / $I:(DE-82)532410_20140620$},
      typ          = {PUB:(DE-HGF)11},
      urn          = {urn:nbn:de:hbz:82-opus-20304},
      url          = {https://publications.rwth-aachen.de/record/49931},
}