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Geosciences, Volume 11, Issue 9

September 2021 - 44 articles

Cover Story: High-elevation, low-relief limestone plateaus such as the forefield of the Vorab glacier are common landscapes. It is suggested that their formation is related to the inability of glaciers to erode thick-bedded, flat-lying limestone, due to the effective water drainage system into the karst system. By combining cosmogenic nuclide techniques with numerical modeling, we determined glacial erosion rates directly on glacial abraded surfaces. Extremely low glacial erosion rates (0.16 mm a−1) across the glacier forefield were observed, highlighting that Alpine limestone plateaus evolved over many glacial cycles. The lack of subglacial water inhibited glacier sliding, reducing glacial erosion. View this paper
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Articles (44)

  • Article
  • Open Access
15 Citations
5,694 Views
32 Pages

20 September 2021

Drainage basin-scale morphometric analysis and morphological evidence of tectonics represent helpful tools to evaluate and investigate morphoneotectonic processes in tectonically active regions. In this perspective, we applied an integrated analysis...

  • Article
  • Open Access
17 Citations
9,216 Views
15 Pages

Formation of Gas-Emission Craters in Northern West Siberia: Shallow Controls

  • Evgeny Mikhailovich Chuvilin,
  • Natalia Sergeevna Sokolova,
  • Boris Aleksandrovich Bukhanov,
  • Dinara Anvarovna Davletshina and
  • Mikhail Yurievich Spasennykh

17 September 2021

Gas-emission craters discovered in northern West Siberia may arise under a specific combination of shallow and deep-seated permafrost conditions. A formation model for such craters is suggested based on cryological and geological data from the Yamal...

  • Article
  • Open Access
8 Citations
5,521 Views
20 Pages

17 September 2021

The Pacific Island States and Territories are traditionally described as ‘small island’ nations. However, they are also ‘large ocean’ nations with jurisdiction over substantial maritime spaces stretching to at least 200 nautical miles. The article ad...

  • Article
  • Open Access
6 Citations
3,608 Views
14 Pages

Surface and Subsurface Damage Caused by Bullet Impacts into Sandstone

  • Oliver Campbell,
  • Tom Blenkinsop,
  • Oscar Gilbert and
  • Lisa Mol

17 September 2021

The shift of armed conflicts to more urbanised environments has increased the risk to cultural heritage sites. Small arms impacts are ubiquitous in these circumstances, yet the effects and mechanisms of damage caused are not well known. A sandstone t...

  • Article
  • Open Access
3 Citations
2,812 Views
15 Pages

16 September 2021

The presence of minor details of the ground, including soil or rock masses, occurs more frequently than what is normally believed. Thin weak layers, shear bands, and slickensided surfaces can substantially affect the behaviour of foundations, as well...

  • Article
  • Open Access
10 Citations
4,465 Views
15 Pages

SNR-Based GNSS-R for Coastal Sea-Level Altimetry

  • Sajad Tabibi,
  • Renaldo Sauveur,
  • Kelly Guerrier,
  • Gerard Metayer and
  • Olivier Francis

16 September 2021

Geodetic Global Navigation Satellite System reflectometry (GNSS-R) uses ground-based signals of opportunity to retrieve sea levels at an intermediate spatial scale. Geodetic GNSS-R is based on the simultaneous reception of Line-of-Sight (LoS) and its...

  • Article
  • Open Access
8 Citations
4,717 Views
18 Pages

Cosmogenic Exposure Dating (36Cl) of Landforms on Jan Mayen, North Atlantic, and the Effects of Bedrock Formation Age Assumptions on 36Cl Ages

  • Johanna Anjar,
  • Naki Akҫar,
  • Eiliv A. Larsen,
  • Astrid Lyså,
  • Shasta Marrero,
  • Nasim Mozafari and
  • Christof Vockenhuber

15 September 2021

Jan Mayen is a small volcanic island situated 550 km north of Iceland. Glacial sediments and landforms are relatively common on the island but, so far, only a few of them have been dated. In this study, we present and discuss 89 36Cl dates of primari...

  • Article
  • Open Access
7 Citations
7,353 Views
23 Pages

Stabilization of the Lower Jamuna River in Bangladesh—Hydraulic and Morphological Assessment

  • Sanjay Giri,
  • Angela Thompson,
  • Gennady Donchyts,
  • Knut Oberhagemann,
  • Erik Mosselman and
  • Jahangir Alam

14 September 2021

This paper presents a hydraulic and morphological analysis of the Lower Jamuna in Bangladesh with a focus on two key bifurcations that are important for stabilization of the Lower Jamuna reach. We used ground measurements, historical data, multispect...

  • Article
  • Open Access
4 Citations
3,346 Views
18 Pages

13 September 2021

Ground motions recorded in near-fault regions may contain pulse-like traces in the velocity domain. Their long periodicity can identify such signals with large amplitudes. Impulsive signals can be hazardous for buildings, creating large demands due t...

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Geosciences - ISSN 2076-3263