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Geosciences, Volume 13, Issue 9

September 2023 - 33 articles

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Cover Story:

Stable isotope compositions of Arctic paleoprecipitation are reported using phyllosilicates sampled from three paleosols and two bentonites in the Prince Creek Formation (Maastrichtian) in northern Alaska. Estimates of paleoprecipitation were calculated using mineralogical, elemental, and stable oxygen and hydrogen isotopic data recovered from the phyllosilicates. The resulting water isotope values do not intersect the Global Meteoric Water Line and show a deuterium excess ranging from 7 to 46 per mil. These results confirm the presence of a deuterium excess in Late Cretaceous Arctic paleoprecipitation and provide new insights to assessing possible explanations for this phenomenon, with implications for the mechanisms of Cretaceous polar warmth. View this paper

Articles (33)

  • Article
  • Open Access
3 Citations
2,529 Views
24 Pages

Holocene Deformations at the Po Plain–Southern Alps Transition (Lake Maggiore, Italy): Inferences on Glacially vs. Tectonic-Induced Origin

  • Niccolò Menegoni,
  • Matteo Maino,
  • Giovanni Toscani,
  • Lucia Isabella Mordeglia,
  • Gianfranco Valle and
  • Cesare Perotti

21 September 2023

The investigation of deformations in Quaternary deposits holds primary importance in understanding recent geological history and natural hazards in highly populated areas, such as the Po Plain. While civil excavations and trenches possess the potenti...

  • Article
  • Open Access
3 Citations
4,336 Views
22 Pages

21 September 2023

The seismicity in the Ionian Sea region is very high. In the historical period, many earthquakes have been reported mainly since the 16th century. In this research, we investigated the historical seismicity in the Ionian Sea, emphasizing earthquakes...

  • Article
  • Open Access
2,627 Views
16 Pages

20 September 2023

Salt harvesting through natural solar evaporation of salt brines is a practice notably abundant in the Iberian Peninsula. Such activity has been relevant for human consumption, food preservation, livestock feed, and various industries throughout hist...

  • Article
  • Open Access
1 Citations
2,653 Views
26 Pages

20 September 2023

Since Antiquity, sustainable resources of gold and copper have been mined at two prominent prospects in the north Eastern Desert of Egypt, namely the south Gabel Um Monqul (SGUM) and Gabal Al Kharaza (GKZ). Mineralization is hosted by Neoproterozoic...

  • Technical Note
  • Open Access
13 Citations
3,542 Views
12 Pages

Pearson Correlation Coefficient Applied to Petroleum System Characterization: The Case Study of Potiguar and Reconcavo Basins, Brazil

  • Érica T. Morais,
  • Gabriel A. Barberes,
  • Igor Viegas A. F. Souza,
  • Fabiano G. Leal,
  • Jarbas V. P. Guzzo and
  • André L. D. Spigolon

18 September 2023

This study applied the Pearson correlation coefficient and principal component analysis as tools for unsupervised qualitative petroleum system evaluation techniques. A total of 252 oil samples (32 features per sample) representative of two Brazilian...

  • Editorial
  • Open Access
1 Citations
1,855 Views
5 Pages

Permafrost and Gas Hydrate Response to Ground Warming

  • Evgeny Chuvilin and
  • Natalia Sokolova

18 September 2023

This Special Issue of Geosciences is a collection of fifteen original research and overview papers on the response of permafrost and gas hydrates to ground warming caused by natural climate trends and industrial loads [...]

  • Article
  • Open Access
4 Citations
1,929 Views
13 Pages

14 September 2023

The Lambousa fishtank, an archaeological structure entirely carved in bedrock, can be easily recognized and measured in the plan on Google Earth (GE). We surveyed in situ this excellent archaeological marker in 2016 through direct measurements using...

  • Article
  • Open Access
2 Citations
1,905 Views
23 Pages

Ochotopteris—An Endemic Fern of the Mid-Cretaceous Arctic

  • Alexei B. Herman and
  • Ksenia V. Domogatskaya

14 September 2023

Three species belonging to the fern genus Ochotopteris E. Lebedev, including the new species O. lebedevii Herman et Domogatskaya, are revised, described and illustrated in this paper. The fossils come from Albian, Cenomanian, Turonian and Coniacian b...

  • Article
  • Open Access
12 Citations
2,207 Views
25 Pages

Features of Soil Organic Carbon Transformations in the Southern Area of the East European Plain

  • Fedor N. Lisetskii,
  • Zhanna A. Buryak,
  • Olga A. Marinina,
  • Pavel A. Ukrainskiy and
  • Pavel V. Goleusov

14 September 2023

The active development of the problems related to the assessment of the role of the pedosphere in global climate change involves the possibility of application of the quantitative determination of soil organic carbon (SOC) as one of the indicators of...

  • Article
  • Open Access
2 Citations
5,827 Views
35 Pages

13 September 2023

This work aims to analyse the mechanisms and factors contributing to shallow soil landslides in river valleys entrenched in lowlands on the example of the Central Radunia Valley. The combination of susceptibility analysis using geographic-information...

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