11 Works

Tectonic and environmental perturbations at the Permian-Triassic boundary: insights from the Blue Nile River Basin in central Ethiopia

Maryam Mansouri , Matthias Hinderer , Laura Stutenbecker , Guido Meinhold , Enkurie L. Dawit , Jasper Berndt & Robert Bussert
The Blue Nile River Basin contains a thick fluvio-lacustrine sediment succession of Permian to Jurassic age. Its evolution is linked to extensional tectonics during break-up of Pangea in the aftermath of the Carboniferous-Permian glaciation. We collected sandstone samples from several sections in order to study the tectonic evolution and possible impacts of environmental perturbation around the Permian-Triassic boundary. Based on thin-section petrography, bulk-rock geochemistry, heavy mineral spectra, and detrital zircon U-Pb ages we are able...

Megathrust shear force limits mountain height at convergent plate boundaries

Armin Dielforder , Ralf Hetzel & Onno Oncken
The shear force along convergent plate boundary faults (megathrusts) determines the height of mountain ranges that can be mechanically sustained. Whether the true height of mountain ranges corresponds to this tectonically supported elevation is, however, debated. In particular, climate-dependent erosional processes are often assumed to exert a major control on mountain height, although this assumption has remained difficult to validate. To address this issue, we first constrained the shear force along active megathrusts from their...

The European continental crust through detrital zircons from modern rivers: biasing effects in the detrital zircon record

Paula Castillo , Heinrich Bahlburg , Rodrigo Fernández , Mark Fanning & Jasper Berndt
We present U-Pb, Lu-Hf, and O isotopic data, as well as size-shape data for approximately 3700 detrital zircons from 15 European rivers. In combination with geomorphological information for each river basin (area, drainage length, and hypsometric curves), we evaluate the representativeness and biases affecting such datasets. The new data allow us to demonstrate that the detrital zircon record from major rivers represents all relevant geological events in Europe at the continental scale, with detrital zircon...

Geld und Herrschaft um 1300

Nils Bock
1000 Worte Forschung: im Januar 2021 abgeschlossenes Habilitationsverfahren im Fach Mittelalterliche Geschichte und Historische Hilfswissenschaften, Fachbereich Geschichte/Philosophie, Westfälische Wilhelms-Universität Münster

Postglacial slip distribution along the Teton normal fault, northeastern Basin-and-Range Province (Wyoming, USA) derived from tectonically offset geomorphological features

Andrea Hampel & Maria-Sophie Erdmann
Along the eastern front of the Teton Range, northeastern Basin-and-Range Province, well-preserved fault scarps that formed across moraines, river terraces and other geomorphological features indicate that multiple earthquakes ruptured the range-bounding Teton normal fault after the Last Glacial Maximum (LGM). Here we use high-resolution digital elevation models derived from Lidar data to determine the vertical slip distribution along-strike of the Teton fault from 54 topographic profiles across tectonically offset geomorphological features along the entire Teton...

Habitability of early Earth: Liquid water under a faint young Sun facilitated by tidal heating due to a closer Moon

René Heller , Jan-Peter Duda , Max Winkler , Joachim Reitner & Laurent Gizon
Carbonatites crystallize from mantle-derived carbonate- and volatile-rich melts that exsolve large amounts of fluids during their ascent through and emplacement into the crust. A global review of available fluid inclusion data for carbonatitic systems from variable emplacement depths identified four types of fluid inclusions: (type-I) vapour-poor H2O-NaCl fluids with <50 wt.% salinity; (type-II) vapour-rich H2O-NaCl-CO2 fluids with <5 wt.% salinity; (type-III) multi-component fluids with high salinity without CO2; and (type-IV) multi-component fluids with high salinity...

Ehegattenbesteuerung in Deutschland

Johannes Becker
Ehegattensplitting und der Splittingvorteil: In Deutschland wählen Ehepaare bei der Besteuerung zwischen Einzelveranlagung und gemeinsamer Veranlagung. Wenn sie einzeln veranlagen, werden sie wie Alleinstehende besteuert (Individualbesteuerung). Bei gemeinsamer Veranlagung profitieren die Ehepartner vom Ehegattensplitting. Hohe Steuerlast für Zweitverdiener:innen in Deutschland: Das Ehegattensplitting ist jedoch politisch umstritten. Es trage der Eigenschaft der Ehe als Verbrauchs- und Versorgungsgemeinschaft Rechnung, argumentieren die Befürworter:innen. Die Kritiker:innen hingegen weisen darauf hin, dass das Ehegattensplitting auf ein Modell der Ehe zugeschnitten...

Spatial variations in submarine caldera-hosted hydrothermal systems: Insights from sulfide chemistry, Niuatahi caldera, Tonga rear-arc

Jan J. Falkenberg, Manuel Keith, Karsten M. Haase , Reiner Klemd, Harald Strauss , Christian Peters & Jonguk Kim
Deep-sea and Seabed Mineral resources Research centre, Korean Institute of Ocean Science & Technology, 385 Haeyang-ro, Yeongdo-gu, 49111, Korea(3);Submarine “black smoker” systems and their associated seafloor massive sulfides (SMS) may represent economic resources for future generations. However, the processes leading to spatial variations in the mineralogical and chemical composition of subduction zone-related hydrothermal systems remain poorly constrained. The large submarine caldera of Niuatahi volcano hosts several active hydrothermal vent sites associated with faults at the...

Slip rate of the Danghe Nan Shan thrust fault from 10Be exposure dating of folded river terraces: Implications for the strain distribution in northern Tibet

Qiang Xu , Ralf Hetzel , Andrea Hampel & Reinhard Wolff
The northeastward motion of the Tibetan Plateau along the Altyn Tagh strike-slip fault causes thrust faulting in three parallel mountain ranges (Qilian Shan, Daxue Shan, Danghe Nan Shan) in the plateau interior, and leads to NNE-directed crustal shortening and plateau growth. While slip rates at the plateau margin (i.e. along the Qilian Shan and the Altyn Tagh fault) are well constrained, rates of thrust faulting and the strain distribution in the plateau interior remain poorly...

Kleine Fortschritte – größere Rückschritte

Julia Renner-Mugono & Siegmar Schmidt
Dieser Bericht ist Teil des Transformationsindex BTI 2022. Die regionale Analyse deckt den Zeitraum zwischen dem 1. Februar 2019 bis 31. Januar 2021 ab. Der BTI untersucht Transformationsprozesse in Richtung Demokratie und Marktwirtschaft sowie die Qualität von Regierungsführung in 137 Ländern. Mehr Informationen unter https://www.bti-project.de

One Step Forward, Two Steps Back

Julia Renner-Mugono & Siegmar Schmidt
This report is part of the Transformation Index BTI 2022. The regional analysis covers the period from February 1, 2019 to January 31, 2021. The BTI assesses the transformation toward democracy and a market economy as well as the quality of governance in 137 countries. More on the BTI at https://www.bti-project.org

Registration Year

  • 2022
    11

Resource Types

  • Text
    11

Affiliations

  • University of Münster
    11
  • Leibniz University Hannover
    3
  • University of Koblenz and Landau
    2
  • Keele University
    1
  • University of Erlangen-Nuremberg
    1
  • Australian National University
    1
  • University of Göttingen
    1
  • Max Planck Institute for Solar System Research
    1
  • Korea Institute of Ocean Science and Technology
    1
  • University of Tübingen
    1