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Geosciences, Volume 14, Issue 11

November 2024 - 35 articles

Cover Story: The rotational velocity of a planet affects its length of day (LOD) and gravity. Starting from observed variations in the Earth’s LOD in the past 2.5 billion years, we calculate the corresponding gravity variation (Δg), finding that, on average, gravity at the equator has increased at a rate (Δgeq) of 1.3 × 10−10 m s−2 over 10 years. We estimate the effects that such an increase has on lithosphere and mantle dynamics. Over 500 Ma, Δg provides an adjunct lithospheric load comparable to the one associated with a convective cell and provides a non-linear increase in mantle convection efficiency through faster and wider mixing at all scales. Although these effects are minor compared with other uncertainties in terms of geophysical parameters, Δg may be a factor subtly affecting Earth’s dynamic systems over geological timescales. View this paper
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Articles (35)

  • Article
  • Open Access
2 Citations
3,847 Views
26 Pages

Linking Inca Terraces with Landslide Occurrence in the Ticsani Valley, Peru

  • Gonzalo Ronda,
  • Paul Santi,
  • Isaac E. Pope,
  • Arquímedes L. Vargas Luque and
  • Christ Jesus Barriga Paria

18 November 2024

Since the times of the Incas, farmers in the remote Andes of Peru have constructed terraces to grow crops in a landscape characterized by steep slopes, semiarid climate, and landslide geohazards. Recent investigations have concluded that terracing an...

  • Article
  • Open Access
2,120 Views
14 Pages

16 November 2024

The study of vertebrate palaeontology in the United Kingdom holds a significant position in global research. This study conducts a comprehensive bibliometric analysis and topic modelling of UK vertebrate palaeontology from 2014 to 2023, utilizing dat...

  • Article
  • Open Access
1,374 Views
18 Pages

15 November 2024

Bottom-grab samplers have long been the standard to describe nearshore marine habitats both qualitatively and quantitively. However, sediment samplers are designed to collect specific grain sizes and therefore have biases toward those sediments. Here...

  • Article
  • Open Access
1,336 Views
14 Pages

15 November 2024

Seismic risk expresses the expected degree of damage and loss following a catastrophic event. An efficient tool for assessing the seismic risk of embankments is fragility curves. This research investigates the influence of embankment’s geometry...

  • Article
  • Open Access
2 Citations
5,868 Views
14 Pages

15 November 2024

Human habitat is much controlled by the landscape and its ongoing processes overtime. Some of these processes occur instantaneously and are often triggered by seismic events with a major destructive impact on the human-built environment. Helike, on t...

  • Article
  • Open Access
6 Citations
1,555 Views
17 Pages

Determining the Boundaries of Overlying Strata Collapse Above Mined-Out Panels of Zhomart Mine Using Seismic Data

  • Sara Istekova,
  • Alexander Makarov,
  • Dina Tolybaeva,
  • Arman Sirazhev and
  • Kuanysh Togizov

15 November 2024

The present article is devoted to the issue of studying the patterns of displacement of superincumbent rock over panels of a mine obtained using advanced seismic technologies, allowing for the study of the boundaries of caving zones in the depths of...

  • Article
  • Open Access
1,703 Views
14 Pages

14 November 2024

Recent advancements in seismic data analysis have enhanced our grasp of the seismic heterogeneities near the core–mantle boundary (CMB). Through seismic tomography, persistent lower-mantle structures like the large low shear velocity provinces...

  • Article
  • Open Access
2,175 Views
22 Pages

14 November 2024

Monitoring crude oil spills in coastal areas is challenging due to limitations in traditional in situ methods. Electrical resistivity imaging (ERI) offers a high-resolution approach to monitoring the subsurface spatial distribution of crude oil, but...

  • Article
  • Open Access
3 Citations
4,328 Views
16 Pages

Seismic Risk Assessment for the City of Sofia, Bulgaria

  • Dimcho Enchev Solakov,
  • Dimitar Stefanov,
  • Stela Simeonova and
  • Plamena Raykova-Tsankova

13 November 2024

An earthquake is the most destructive natural phenomenon, with its sudden onset and rapid spread impacting large areas. Among the various geohazards, seismic ones dominate in terms of their social and economic effects on human life and the urban envi...

  • Article
  • Open Access
2 Citations
2,117 Views
22 Pages

13 November 2024

Ground liquefaction potential analysis is a fundamental characterization in areas with continuous seismic activity, such as Ecuador. Geotechnical liquefaction studies are usually approached from dynamic penetration tests, which pose problems both in...

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Geosciences - ISSN 2076-3263