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Geosciences, Volume 12, Issue 2

February 2022 - 57 articles

Cover Story: Climate change is expected to reduce global water security in arid mountains, where the vulnerable water supply is further projected to be stressed through changes in air temperature, precipitation, radiation, and wind. Together with glacier recession, this will negatively impact water availability. However, the response of permafrost to climate change is complex, where surface conditions and water flow influence heat transfer and the time over which changes occur. Mountain permafrost, particularly of rock glaciers, is often conceptualized as (frozen) water reservoirs, but an understanding of how its degradation contributes to runoff is lacking. Based on the Dry Andes, we summarize current understanding of mountain permafrost hydrology, discuss challenges and limitations, and provide suggestions for future research. View this paper
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Articles (57)

  • Article
  • Open Access
2 Citations
3,941 Views
36 Pages

The Sodicho Rockshelter in the southwestern Ethiopian Highlands presents a unique site that contains sediments of Upper Pleistocene and Holocene occupation phases of hunter-gatherer communities. Excavations and previous geoarchaeological research pro...

  • Article
  • Open Access
2 Citations
3,207 Views
16 Pages

Sediment transport and stream discharge are two of the natural procedures which affect the hydromorphological profile of a watercourse. Measurements of water discharge, bed load transport rate and suspended sediment concentration were conducted in Ko...

  • Article
  • Open Access
3 Citations
3,114 Views
15 Pages

In this study, we analyzed up to 80 detrital quartz grains from four lithic greywackes along the stratigraphic column of the Julian Basin, a synorogenic basin in the southeastern Alps between Italy and Slovenia. Fourier transform infrared spectroscop...

  • Article
  • Open Access
8 Citations
4,460 Views
19 Pages

The identification of underwater landforms represents an important role in the study of the seafloor morphology. In this context, the segmentation and characterization of underwater dunes allow a better understanding of the dynamism of the seafloor,...

  • Article
  • Open Access
6 Citations
4,077 Views
29 Pages

Successive Modes of Carbonate Precipitation in Microbialites along the Hydrothermal Spring of La Salsa in Laguna Pastos Grandes (Bolivian Altiplano)

  • Elodie Muller,
  • Magali Ader,
  • Giovanni Aloisi,
  • Cédric Bougeault,
  • Christophe Durlet,
  • Emmanuelle Vennin,
  • Karim Benzerara,
  • Eric C. Gaucher,
  • Aurélien Virgone and
  • Marco Chavez
  • + 2 authors

Interpreting the paleoecosystems of ancient microbialites relies on our understanding of how modern microbialites form in relation with the bio-physico-chemical conditions of their environment. In this study, we investigated the formation of modern c...

  • Article
  • Open Access
16 Citations
5,912 Views
14 Pages

Ice Core Chronologies from the Antarctic Peninsula: The Palmer, Jurassic, and Rendezvous Age-Scales

  • B. Daniel Emanuelsson,
  • Elizabeth R. Thomas,
  • Dieter R. Tetzner,
  • Jack D. Humby and
  • Diana O. Vladimirova

In this study, we present the age scales for three Antarctic Peninsula (AP) ice cores: Palmer, Rendezvous, and Jurassic. The three cores are all intermediate-depth cores, in the 133–141 m depth range. Non-sea-salt sulfate ([nssSO42−]) and...

  • Article
  • Open Access
5 Citations
3,807 Views
16 Pages

São Pedro do Sul thermomineral aquifer system is located in the North of Portugal. Hydrogeochemistry and isotopic studies were conducted in order to improve knowledge of this groundwater system, known since ancient Roman times for their therap...

  • Review
  • Open Access
17 Citations
8,762 Views
15 Pages

The first step for learning any calculation code for seismic response analysis is an adequate understanding of how to properly set the boundary conditions and the properties of the soil model at the initial stage, i.e., before the shaking event. To p...

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Geosciences - ISSN 2076-3263