Articles | Volume 67, issue 2
https://doi.org/10.5194/egqsj-67-37-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/egqsj-67-37-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Glacial history of the upper Drac Blanc catchment (Écrins massif, French Alps)
Felix Martin Hofmann
CORRESPONDING AUTHOR
Department of Geology, Lund University, Sölvegatan 12, 22362 Lund,
Sweden
Related authors
Felix Martin Hofmann and Frank Preusser
E&G Quaternary Sci. J., 74, 1–35, https://doi.org/10.5194/egqsj-74-1-2025, https://doi.org/10.5194/egqsj-74-1-2025, 2025
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Previous reconstructions conclude that the southern Black Forest, south-west Germany, temporarily hosted four ice caps during the Late Pleistocene (129 000–11 700 years before present). This work reviews existing studies on glacial landforms north-east of its highest summit, Feldberg (1493 m above sea level), in the light of new observations. Whilst this study largely confirms previous work, we reject and newly describe several glacial landforms.
Alexander Fülling, Hans Rudolf Graf, Felix Martin Hofmann, Daniela Mueller, and Frank Preusser
E&G Quaternary Sci. J., 73, 203–216, https://doi.org/10.5194/egqsj-73-203-2024, https://doi.org/10.5194/egqsj-73-203-2024, 2024
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The Mühlbach series has been given as evidence for a Late Pliocene/Early Pleistocene Aare–Rhine fluvial system in northern Switzerland and southwest Germany. We show that these deposits represent a variety of different units. At the type location, luminescence dating indicates an age of 55 ka, and we interpret the deposits as slope reworking. Beside methodological implications, our studies recommend caution regarding the interpretation of stratigraphic units for which limited data are available.
Felix Martin Hofmann, Claire Rambeau, Lukas Gegg, Melanie Schulz, Martin Steiner, Alexander Fülling, Laëtitia Léanni, Frank Preusser, and ASTER Team
Geochronology, 6, 147–174, https://doi.org/10.5194/gchron-6-147-2024, https://doi.org/10.5194/gchron-6-147-2024, 2024
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We determined 10Be concentrations in moraine boulder surfaces in the southern Black Forest, SW Germany. We applied three independent dating methods to younger lake sediments. With the aid of independent age datasets, we calculated the growth of 10Be concentrations in moraine boulder surfaces.
Felix Martin Hofmann
E&G Quaternary Sci. J., 72, 235–237, https://doi.org/10.5194/egqsj-72-235-2023, https://doi.org/10.5194/egqsj-72-235-2023, 2023
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This study aims to reconstruct the last glaciation of the southern Black Forest. Ice-marginal positions in this region were, for the first time, directly dated. Glacier retreat from the last glaciation maximum position was probably underway no later than 21 ka. Re-advances and/or standstills of glaciers (no later than 17–16 ka, 15–14 ka and 13 ka) punctuated the subsequent trend towards ice-free conditions.
Felix Martin Hofmann
Geochronology, 4, 691–712, https://doi.org/10.5194/gchron-4-691-2022, https://doi.org/10.5194/gchron-4-691-2022, 2022
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If topographical obstructions are present in the surroundings of sampling sites, exposure ages of rock surfaces need to be corrected. A toolbox for the ESRI ArcGIS software allows for quantifying topographic shielding with a digital elevation model, but it has only been validated with few field data. In this study, the output of the toolbox is evaluated with a more extensive dataset. If suitable elevation data are chosen, the toolbox provides a sound approach to determine topographic shielding.
Felix Martin Hofmann, Florian Rauscher, William McCreary, Jan-Paul Bischoff, and Frank Preusser
E&G Quaternary Sci. J., 69, 61–87, https://doi.org/10.5194/egqsj-69-61-2020, https://doi.org/10.5194/egqsj-69-61-2020, 2020
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The Black Forest was covered by a 1000 km2 large ice cap during the last glaciation. Glacial landforms in the area north-west of the highest summit of the Black Forest, the Feldberg (1493 m above sea level), were investigated to select suitable sampling sites for dating glacial landforms in future studies. Some of the terminal moraines described in this study are mapped for the first time. The application of dating methods will provide insights into the chronology of the last glaciation.
Felix Martin Hofmann and Frank Preusser
E&G Quaternary Sci. J., 74, 1–35, https://doi.org/10.5194/egqsj-74-1-2025, https://doi.org/10.5194/egqsj-74-1-2025, 2025
Short summary
Short summary
Previous reconstructions conclude that the southern Black Forest, south-west Germany, temporarily hosted four ice caps during the Late Pleistocene (129 000–11 700 years before present). This work reviews existing studies on glacial landforms north-east of its highest summit, Feldberg (1493 m above sea level), in the light of new observations. Whilst this study largely confirms previous work, we reject and newly describe several glacial landforms.
Alexander Fülling, Hans Rudolf Graf, Felix Martin Hofmann, Daniela Mueller, and Frank Preusser
E&G Quaternary Sci. J., 73, 203–216, https://doi.org/10.5194/egqsj-73-203-2024, https://doi.org/10.5194/egqsj-73-203-2024, 2024
Short summary
Short summary
The Mühlbach series has been given as evidence for a Late Pliocene/Early Pleistocene Aare–Rhine fluvial system in northern Switzerland and southwest Germany. We show that these deposits represent a variety of different units. At the type location, luminescence dating indicates an age of 55 ka, and we interpret the deposits as slope reworking. Beside methodological implications, our studies recommend caution regarding the interpretation of stratigraphic units for which limited data are available.
Felix Martin Hofmann, Claire Rambeau, Lukas Gegg, Melanie Schulz, Martin Steiner, Alexander Fülling, Laëtitia Léanni, Frank Preusser, and ASTER Team
Geochronology, 6, 147–174, https://doi.org/10.5194/gchron-6-147-2024, https://doi.org/10.5194/gchron-6-147-2024, 2024
Short summary
Short summary
We determined 10Be concentrations in moraine boulder surfaces in the southern Black Forest, SW Germany. We applied three independent dating methods to younger lake sediments. With the aid of independent age datasets, we calculated the growth of 10Be concentrations in moraine boulder surfaces.
Felix Martin Hofmann
E&G Quaternary Sci. J., 72, 235–237, https://doi.org/10.5194/egqsj-72-235-2023, https://doi.org/10.5194/egqsj-72-235-2023, 2023
Short summary
Short summary
This study aims to reconstruct the last glaciation of the southern Black Forest. Ice-marginal positions in this region were, for the first time, directly dated. Glacier retreat from the last glaciation maximum position was probably underway no later than 21 ka. Re-advances and/or standstills of glaciers (no later than 17–16 ka, 15–14 ka and 13 ka) punctuated the subsequent trend towards ice-free conditions.
Felix Martin Hofmann
Geochronology, 4, 691–712, https://doi.org/10.5194/gchron-4-691-2022, https://doi.org/10.5194/gchron-4-691-2022, 2022
Short summary
Short summary
If topographical obstructions are present in the surroundings of sampling sites, exposure ages of rock surfaces need to be corrected. A toolbox for the ESRI ArcGIS software allows for quantifying topographic shielding with a digital elevation model, but it has only been validated with few field data. In this study, the output of the toolbox is evaluated with a more extensive dataset. If suitable elevation data are chosen, the toolbox provides a sound approach to determine topographic shielding.
Felix Martin Hofmann, Florian Rauscher, William McCreary, Jan-Paul Bischoff, and Frank Preusser
E&G Quaternary Sci. J., 69, 61–87, https://doi.org/10.5194/egqsj-69-61-2020, https://doi.org/10.5194/egqsj-69-61-2020, 2020
Short summary
Short summary
The Black Forest was covered by a 1000 km2 large ice cap during the last glaciation. Glacial landforms in the area north-west of the highest summit of the Black Forest, the Feldberg (1493 m above sea level), were investigated to select suitable sampling sites for dating glacial landforms in future studies. Some of the terminal moraines described in this study are mapped for the first time. The application of dating methods will provide insights into the chronology of the last glaciation.
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