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Geosciences, Volume 12, Issue 7

July 2022 - 27 articles

Cover Story: Relict glaciers only exist in the highest Kaçkar Mountains of Northeast Anatolia today. Fieldwork has revealed extensive valley glaciers in the past, with well-preserved glacial landscapes. A pronounced weather divide separates the orographic precipitation-fed northern valleys with direct moisture transport from the Black Sea from south-easterly valleys in the lee of the weather divide. We report here on extensive field evidence for paleoglaciers in these lee-side valleys, as well. Based on cosmogenic nuclide methodology applied to erratic boulders, a chronology for the last glaciation is established. The unexpected large paleoglaciers in the south-easterly valleys require moisture transport from the east for their growth and, therefore, changes in atmospheric paleocirculation pattern. View this paper
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Articles (27)

  • Article
  • Open Access
1 Citations
2,060 Views
27 Pages

The majority of formulae for predicting in-channel mixing by longitudinal dispersion are based on empirical evidence from medium to large rivers, whereas small creeks and streams are under-represented despite their hydrological and ecological importa...

  • Article
  • Open Access
9 Citations
2,132 Views
17 Pages

Changes in the Regime of Erosive Precipitation on the European Part of Russia for the Period 1966–2020

  • Nelli Chizhikova,
  • Oleg Yermolaev,
  • Valentin Golosov,
  • Svetlana Mukharamova and
  • Anatoly Saveliev

The objective of this work is to analyze the spatial-temporal features of the trends in the frequency and amount of erosion-hazardous precipitation in the European part of Russia (EPR) for the period 1966–2020, as a reflection of the influence...

  • Article
  • Open Access
2 Citations
2,391 Views
23 Pages

Gravitational mass movements such as rockfalls, landslides, rock avalanches, or debris flows are increasingly endangering settlement areas and infrastructure facilities in the Alpine region as a result of climate change. An essential component of cou...

  • Article
  • Open Access
10 Citations
5,312 Views
20 Pages

Mineralogy and Mineral Chemistry of the REE-Rich Black Sands in Beaches of the Kavala District, Northern Greece

  • Eftychia Peristeridou,
  • Vasilios Melfos,
  • Lambrini Papadopoulou,
  • Nikolaos Kantiranis and
  • Panagiotis Voudouris

The coastal area of the Kavala district, Northern Greece, is characterized by minerals enriched in rare earth elements (REE). The present study focuses on the mineralogy of the black sands from six different locations and the comprehensive mineral ch...

  • Article
  • Open Access
5 Citations
2,849 Views
19 Pages

Migration of Salt Ions in Frozen Hydrate-Saturated Sediments: Temperature and Chemistry Constraints

  • Evgeny Chuvilin,
  • Valentina Ekimova,
  • Dinara Davletshina,
  • Boris Bukhanov,
  • Ekaterina Krivokhat and
  • Vladimir Shilenkov

Migration of dissolved salts from natural (cryopeg brines, seawater, etc.), or artificial sources can destabilize intrapermafrost gas hydrates. Salt transport patterns vary as a function of gas pressure, temperature, salinity, etc. The sensitivity of...

  • Article
  • Open Access
8 Citations
3,992 Views
28 Pages

Pompeii Archaeological Park is the best laboratory for the study of the seismic site effects on cultural heritage: the ancient site was destroyed and buried by the 79 AD Vesuvian eruption and, furthermore, it was also affected by the 62–63 AD s...

  • Article
  • Open Access
9 Citations
3,542 Views
28 Pages

Landslides and Gullies Interact as Sources of Lake Sediments in a Rifting Context: Insights from a Highly Degraded Mountain Environment

  • Liuelsegad Belayneh,
  • Olivier Dewitte,
  • Guchie Gulie,
  • Jean Poesen,
  • Daniel O’Hara,
  • Alemayehu Kassaye,
  • Tizita Endale and
  • Matthieu Kervyn

Like many other lakes in the world, the interconnected Abaya and Chamo lakes in the Southern Main Ethiopian Rift are affected by rapid sediment accumulation. Although land degradation is a well-known issue in this part of the African continent, the m...

  • Article
  • Open Access
19 Citations
4,571 Views
15 Pages

Composition, Texture, and Weathering Controls on the Physical and Strength Properties of Selected Intrusive Igneous Rocks from Northern Pakistan

  • Muhammad Yasir,
  • Waqas Ahmed,
  • Ihtisham Islam,
  • Muhammad Sajid,
  • Hammad Tariq Janjuhah and
  • George Kontakiotis

This study examines the mineralogy, texture, and weathering grades of intrusive igneous rocks from northern Pakistan, as well as their impacts on physical and strength properties. In comparison to felsic rocks, mafic and intermediate rocks have lower...

  • Article
  • Open Access
1 Citations
2,478 Views
17 Pages

Holocene Evolution of Minor Mountain Lacustrine Basins in the Northern Apennines, Italy: The Lake Moo Case Study

  • Stefano Segadelli,
  • Kei Ogata,
  • Marco Cocuccioni,
  • Stefano Gambini,
  • Luca Martelli,
  • Lionello F. Morandi and
  • Gabriele Oppo

Sedimentary systems developed in small (<1 km2) mountain lacustrine basins represent high-resolution geological archives, able to record subtle climatic and tectonic signatures over historical times. The studied example from the Mt. Ragola ophioli...

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Geosciences - ISSN 2076-3263Creative Common CC BY license