The Central European Variscan Ranges

Migoń, Piotr; Waroszewski, Jarosław

doi:10.1007/978-3-031-14895-8_10

Cited by 2 publications

(1 citation statement)

References 39 publications

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“…The study area "Pod Małym Śnieżnikiem" mire was formed on the paragneiss and biotite schist outcrops of the Stronie Formation, within a flattened broad ridge spur (Figure 1d). The slopes of the Śnieżnik Massif are covered with a coarse-grained weathering mantle resulting from processes operating under periglacial conditions, traditionally linked with the Pleistocene epoch [17][18][19][20]. There are numerous gneiss bedrock outcrops, and blockfields are common, whereas on the highest peaks above the tree line, affected by winter snow blown in near-surface frost, segregation occurs, resulting in structural ground formation [21].…”

Section: Geology and Geomorphologymentioning

confidence: 99%

Norway Spruce (Picea abies L.) Evidencing >0.35 Ka Long Climate Variability in the Sudetes, Central Europe

Cedro,

Borówka

et al. 2024

Preprint

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During an interdisciplinary study of the mire “Pod Małym Śnieżnikiem”, a very old specimen of the Norway spruce (Picea abies L.) was encountered. The aim of the present work was to perform a detailed examination of this tree, to compare it to other spruce trees on the mire, and to provide support for establishing protection for this tree stand. Tree-ring cores were sampled at 1.3 m above ground using Pressler borer, in two field campaigns: in June and July 2023, the latter campaign aiming to find the oldest trees. A total of 46 trees were sampled, yielding 84 measuring radii. Tree ring widths were measured down to 0.01 mm under a stereomicroscope. The oldest sampled tree yielded a total of 370 tree rings in the two radii, representing the period 1653–2022. The average tree ring width for TM15 equals 0.33 mm/year, and shows low values (on average 0.19 mm/year) for the period 1742–1943, i.e., during the Little Ice Age cooling. TM15 does not stand out from other trees from the population with respect to height or trunk diameter. A comparison of the age of this tree to the oldest spruce trees in Poland indicates that it is one of the longest living specimens of this species. Considering the natural character of the stand, the remaining flora and the peat-forming processes taking place within the mire “Pod Małym Śnieżnikiem”, we argue that the mire should become protected by the law as soon as possible in order to preserve this valuable high-mountain habitat.

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Section: Geology and Geomorphologymentioning

confidence: 99%

Norway Spruce (Picea abies L.) Evidencing >0.35 Ka Long Climate Variability in the Sudetes, Central Europe

Cedro,

Borówka

et al. 2024

Preprint

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Regional beryllium-10 production rate for the mid-elevation mountainous regions in central Europe, deduced from a multi-method study of moraines and lake sediments in the Black Forest

Hofmann,

Rambeau,

Gegg

et al. 2024

Geochronology

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Abstract. Beryllium-10 cosmic-ray exposure (CRE) dating has revolutionized our understanding of glacier fluctuations around the globe. A key prerequisite for the successful application of this dating method is the determination of regional production rates of in situ accumulated 10Be, usually inferred at independently dated calibration sites. Until now, no calibration site has been available for the mid-elevation mountain ranges of central Europe. We fill this gap by determining in situ 10Be concentrations in large boulders on moraines and by applying radiocarbon and infrared-stimulated luminescence (IRSL) dating to stratigraphically younger lake sediments in the southern Black Forest, SW Germany. The dating methods yielded concordant results, and, based on age–depth modelling with 14C ages, the age of a cryptotephra, and IRSL ages, we deduced a regional 10Be production rate in quartz. Calibrating the Black Forest production rate (BFPR) in the Cosmic-Ray Exposure program (CREp) resulted in a spallogenic sea-level and high-latitude (SLHL) production rate of 3.64±0.11 atoms 10Be g−1 quartz a−1 when referring to time-dependent Lal–Stone scaling, the European Reanalysis (ERA)-40 atmosphere model, and the atmospheric 10Be-based geomagnetic database in CREp. The BFPR turned out to be ∼11 % lower than both those at the nearest calibration site in the Alps (4.10±0.10 atoms 10Be g−1 quartz a−1 at SLHL) and the canonical global 10Be production rate (4.11±0.19 atoms 10Be g−1 quartz a−1 at SLHL) in CREp. A stronger weathering and snow cover bias and a higher impact of forest, soil, moss, and shrub cover at the study site likely explain this discrepancy.

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The Central European Variscan Ranges

Cited by 2 publications

References 39 publications

Norway Spruce (Picea abies L.) Evidencing >0.35 Ka Long Climate Variability in the Sudetes, Central Europe

Norway Spruce (Picea abies L.) Evidencing >0.35 Ka Long Climate Variability in the Sudetes, Central Europe

Regional beryllium-10 production rate for the mid-elevation mountainous regions in central Europe, deduced from a multi-method study of moraines and lake sediments in the Black Forest

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