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Geosciences, Volume 10, Issue 10

2020 October - 40 articles

Cover Story: The active emission of gas (mainly methane) from terrestrial and subsea permafrost in the Russian Arctic has been confirmed by ample evidence. A generalization and some systematization of gas manifestations recorded in the Russian Arctic are carried out. All events of onshore and shelf gas release may be divided into natural and man-caused and the natural events can be further classified as venting from lakes or explosive emissions in dryland conditions that produce craters on the surface. Observed man-caused gas manifestations associated with the drilling of geotechnical and production wells in the Arctic region. The reported evidence demonstrates the effect of permafrost degradation on gas release. View this paper
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Articles (40)

  • Article
  • Open Access
7 Citations
3,614 Views
19 Pages

Evidence of Predation on Early Pleistocene Freshwater Ostracods (Umbria, Central Italy)

  • Angela Baldanza,
  • Roberto Bizzarri,
  • Francesco Posati and
  • Manuel Ravoni

20 October 2020

Although drillholes in modern and ancient ostracods are known, the record is relatively scarce when compared to other taxa, and mainly exist with reference to the marine environment. Moreover, less is known about perforated ostracods, and more genera...

  • Article
  • Open Access
3 Citations
7,368 Views
13 Pages

Magnetic Anomaly and Model of the Lonar Meteorite Impact Crater in Maharashtra, India

  • Kalle Kiik,
  • Jüri Plado,
  • Muddaramaiah Lingadevaru,
  • Syed Hamim Jeelani and
  • Mateusz Szyszka

20 October 2020

The ground magnetic field of the Lonar impact crater (Maharashtra State, India) and its surrounding area was measured and studied utilizing 2.5-dimensional potential field modelling. Field data showed the crater depression is associated with a strong...

  • Article
  • Open Access
7 Citations
4,478 Views
21 Pages

Characterizing Stalagmites’ Eigenfrequencies by Combining In Situ Vibration Measurements and Finite Element Modeling Based on 3D Scans

  • Aurélie Martin,
  • Thomas Lecocq,
  • Klaus-G. Hinzen,
  • Thierry Camelbeeck,
  • Yves Quinif and
  • Nathalie Fagel

20 October 2020

Broken or deformed speleothems have been used as indicators of paleo-earthquakes since the 1990s; however, a causal link is difficult to prove except for some thin speleothems. In contrast, the presence of intact speleothems permits estimating an upp...

  • Communication
  • Open Access
8 Citations
2,796 Views
3 Pages

Earth Tides and H2 Venting in the Sao Francisco Basin, Brazil

  • Jacob Simon,
  • Patrick Fulton,
  • Alain Prinzhofer and
  • Lawrence Cathles

19 October 2020

Hydrogen gas seeping from Proterozoic basins worldwide is a potential non-carbon energy resource, and the vents are consequently receiving research attention. A curious feature of H2 venting in the Sao Francisco Basin in Brazil is that the venting di...

  • Article
  • Open Access
13 Citations
3,450 Views
16 Pages

19 October 2020

Virginia is a state in the Southeastern and Mid-Atlantic regions of the United States of America that offers spectacular sceneries and varied geologic history that covers about 1.5 billion years. A rock garden was developed at the Edith J. Carrier Ar...

  • Feature Paper
  • Article
  • Open Access
16 Citations
4,624 Views
30 Pages

15 October 2020

Foraminifers and ostracods were studied in a gravity-core recovered near Cape Adare (Ross Sea, Antarctica) with the aim of identifying the climatic and oceanographic variations during the last 30 ka. The sedimentary sequence represents conditions of...

  • Article
  • Open Access
1 Citations
4,546 Views
33 Pages

14 October 2020

The Pacific coast of the Shimokita Peninsula, Northeast Japan, is occupied by one of the larger dune complexes in Japan. This coastal aeolian dune complex developed during the Holocene in a monsoon-influenced temperate climatic belt. The stratigraphi...

  • Article
  • Open Access
21 Citations
4,844 Views
14 Pages

Sonar Estimation of Methane Bubble Flux from Thawing Subsea Permafrost: A Case Study from the Laptev Sea Shelf

  • Denis Chernykh,
  • Vladimir Yusupov,
  • Aleksandr Salomatin,
  • Denis Kosmach,
  • Natalia Shakhova,
  • Elena Gershelis,
  • Anton Konstantinov,
  • Andrey Grinko,
  • Evgeny Chuvilin and
  • Igor Semiletov
  • + 2 authors

14 October 2020

Seeps found offshore in the East Siberian Arctic Shelf may mark zones of degrading subsea permafrost and related destabilization of gas hydrates. Sonar surveys provide an effective tool for mapping seabed methane fluxes and monitoring subsea Arctic p...

  • Feature Paper
  • Article
  • Open Access
11 Citations
6,699 Views
21 Pages

Methane Content and Emission in the Permafrost Landscapes of Western Yamal, Russian Arctic

  • Gleb E. Oblogov,
  • Alexander A. Vasiliev,
  • Irina D. Streletskaya,
  • Natalia A. Zadorozhnaya,
  • Anna O. Kuznetsova,
  • Mikhail Z. Kanevskiy and
  • Petr B. Semenov

14 October 2020

We present the results of studies of the methane content in soils of the active layer and underlying permafrost, as well as data on the emission of methane into the atmosphere in the dominant landscapes of typical tundra of the western coast of the Y...

  • Article
  • Open Access
15 Citations
4,536 Views
26 Pages

Field Measurements of Soil Water Content at Shallow Depths for Landslide Monitoring

  • Rossella Bovolenta,
  • Alessandro Iacopino,
  • Roberto Passalacqua and
  • Bianca Federici

13 October 2020

Monitoring changes in soil saturation is important for slope stability analyses. Soil moisture capacitive sensors have recently been developed; their response time is extremely fast, they require little maintenance, and they are relatively inexpensiv...

  • Article
  • Open Access
10 Citations
3,205 Views
18 Pages

A Generic Shear Wave Velocity Profiling Model for Use in Ground Motion Simulation

  • Yuxiang Tang,
  • Xinmei Xiang,
  • Jing Sun and
  • Yongshan Zhang

12 October 2020

This study presents a generic model for constructing shear-wave velocity (VS) profiles for various conditions that can be used for modeling the upper-crustal modification effects in ground motion simulations for seismic hazard analysis. The piecewise...

  • Brief Report
  • Open Access
2,678 Views
8 Pages

12 October 2020

We describe Earth2Class, a professional development model that connects classroom teachers with research investigators so that they and their students can learn about cutting-edge discoveries, long before mention is included in textbooks. Teachers an...

  • Article
  • Open Access
18 Citations
9,548 Views
17 Pages

The Usefulness of Seismic Surveys for Geotechnical Engineering in Karst: Some Practical Examples

  • Mario Bačić,
  • Lovorka Librić,
  • Danijela Jurić Kaćunić and
  • Meho Saša Kovačević

11 October 2020

Having in mind uncertainties linked with the nature of rock masses, it is a challenge for geotechnical engineers to characterize them in a credible manner, especially if the rock mass in question is a notoriously complex karst with its distinctive fe...

  • Article
  • Open Access
4 Citations
3,870 Views
23 Pages

Structural and Stratigraphic Setting of Campagna and Giffoni Tectonic Windows: New Insights on the Orogenic Evolution of the Southern Apennines (Italy)

  • Stefano Vitale,
  • Ernesto Paolo Prinzi,
  • Maria Monda,
  • Francesco D’Assisi Tramparulo and
  • Sabatino Ciarcia

10 October 2020

We present a structural study on the tectonic windows of Giffoni and Campagna, located in the western sector of the southern Apennines (Italy). We analyzed thrusts, folds, and related minor deformation structures. Here, a major in-sequence E-verging...

  • Feature Paper
  • Article
  • Open Access
81 Citations
13,707 Views
25 Pages

Rockfall Research: A Bibliometric Analysis and Future Trends

  • Josué Briones-Bitar,
  • Paúl Carrión-Mero,
  • Néstor Montalván-Burbano and
  • Fernando Morante-Carballo

Rockfall is one of the main phenomena in mountainous environments due to its fast and high speed of movement, its unpredictability, and, therefore, the difficulty of identifying signs of instability and detachment of the blocks. Compared to other typ...

  • Article
  • Open Access
17 Citations
6,686 Views
14 Pages

Effect of Urban Development in Risk of Floods in Veracruz, Mexico

  • Emmanuel Zúñiga,
  • Víctor Magaña and
  • Violeta Piña

Urban floods have adverse effects on the population and the economy, and they are increasing in frequency and magnitude. The State of Veracruz is the region of Mexico with the highest number of disasters, more than 50% of the total number nationwide,...

  • Article
  • Open Access
10 Citations
3,536 Views
15 Pages

Despite the fact that streamflow occurs mainly due to depletion of storage, our knowledge on how a drainage basin stores and releases water is very limited due to measurement limitations. A window of opportunity, however, is provided to us by GRACE (...

  • Article
  • Open Access
13 Citations
4,787 Views
40 Pages

Reconstructing Boulder Deposition Histories: Extreme Wave Signatures on a Complex Rocky Shoreline of Malta

  • Derek. N. Mottershead,
  • Philip J. Soar,
  • Malcolm J. Bray and
  • Linley J. Hastewell

The Żonqor coastline, southeast Malta, displays an exceptional range of geomorphic signatures of extreme coastal events. This paper brings together evidence acquired from a field survey, analysis of time-sequential imagery, and hydrodynamic modelling...

  • Review
  • Open Access
36 Citations
9,053 Views
26 Pages

The Arctic region is the most sensitive region to climate change. Hydrological models are fundamental tools for climate change impact assessment. However, due to the extreme weather conditions, specific hydrological process, and data acquisition chal...

  • Article
  • Open Access
2 Citations
4,562 Views
23 Pages

The paper is an attempt to reconstruct the mode of life of Pholadomya bivalves, very common in the fossil record, particularly that of the Jurassic. The only extant representative of the genus is extremely rare and very poorly known. Materials from t...

  • Article
  • Open Access
6 Citations
3,564 Views
19 Pages

Investigating the Geochemical Controls on Pb Bioaccessibility in Urban Agricultural Soils to Inform Sustainable Site Management

  • Jane Entwistle,
  • Lindsay Bramwell,
  • Joanna Wragg,
  • Mark Cave,
  • Elliott Hamilton,
  • Amanda Gardner and
  • John R Dean

The solid-phase speciation of contaminants in soil plays a major role in regulating both the environmental mobility of contaminants and their bioavailability in biological receptors such as humans. With the increasing prevalence of urban agriculture,...

  • Article
  • Open Access
10 Citations
5,406 Views
21 Pages

Permian Hydrothermal Alteration Preserved in Polymetamorphic Basement and Constraints for Ore-genesis (Alpi Apuane, Italy)

  • Simone Vezzoni,
  • Diego Pieruccioni,
  • Yuri Galanti,
  • Cristian Biagioni and
  • Andrea Dini

The reconstruction of the polymetamorphic history of basement rocks in orogens is crucial for deciphering past geodynamic evolution. However, the current petrographic features are usually interpreted as the results of the metamorphic recrystallizatio...

  • Article
  • Open Access
6 Citations
4,700 Views
19 Pages

Soil and groundwater salinization are very important environmental issues of global concern. They threaten mainly the arid and semiarid regions characterized by dry climate conditions and an increase of irrigation practices. Among these regions, the...

  • Article
  • Open Access
8 Citations
3,460 Views
19 Pages

The sedimentary record of aeolian deposits and geomorphic features of the aeolian landforms of Northern Eurasia contain important information that allows us to better understand the climate and environments of the Late Glacial and Early Holocene peri...

  • Review
  • Open Access
8 Citations
3,903 Views
20 Pages

Four main unconformities (1–4) were recognized in the sedimentary record of the Cenozoic basins of the eastern External Betic Zone (SE, Spain). They are located at different stratigraphic levels, as follows: (1) Cretaceous-Paleogene boundary, e...

  • Article
  • Open Access
10 Citations
4,118 Views
20 Pages

Biogeochemistry of Household Dust Samples Collected from Private Homes of a Portuguese Industrial City

  • Amélia P. Marinho-Reis,
  • Cristiana Costa,
  • Fernando Rocha,
  • Mark Cave,
  • Joanna Wragg,
  • Teresa Valente,
  • Amália Sequeira-Braga and
  • Yves Noack

The main objectives of the present study were to (i) investigate the effects of mineralogy and solid-phase distribution on element bioaccessibility and (ii) perform a risk assessment to calculate the risks to human health via the ingestion pathway. M...

  • Article
  • Open Access
9 Citations
8,015 Views
16 Pages

Predictive models able to provide a reliable estimate of hydraulic conductivity can be useful in various geotechnical applications. Since most of the existing predictive methods for saturated hydraulic conductivity estimation are valid only for a lim...

  • Article
  • Open Access
4 Citations
2,807 Views
15 Pages

Intensity Assessment of Erosion-Accumulative Processes in the Selenga Middle Mountains (Case Study of the Gully Network of the Nizhnyaya Bulanka Depression, Western Transbaikalia)

  • Bair Z. Tsydypov,
  • Bator V. Sodnomov,
  • Vladimir N. Chernykh,
  • Yury M. Ilyin,
  • Bair O. Gurzhapov,
  • Alexander A. Ayurzhanaev,
  • Maria V. Semenova,
  • Margarita A. Zharnikova,
  • Zhargalma B. Alymbaeva and
  • Endon Zh. Garmaev
  • + 6 authors

28 September 2020

The advantages of a quantitative assessment of the spatial and temporal variability of the boundaries and volumes of ravines using modern means and methods of aerial photography from an unmanned aerial vehicle (UAV) are substantiated, in contrast to...

  • Article
  • Open Access
5 Citations
5,009 Views
26 Pages

28 September 2020

We reinvestigated the Pleistocene calcareous nannofossil biostratigraphy of Site U1431D (International Ocean Discovery Program (IODP) Expedition 349) in the South China Sea (SCS). Twelve calcareous nannofossil Pleistocene datums are identified in the...

  • Article
  • Open Access
8 Citations
4,746 Views
20 Pages

28 September 2020

Rockfall consists one of the most harmful geological phenomena for the man-made environment. In order to evaluate the rockfall hazard, a variety of engineering geological studies should be realized, starting from conducting a detailed field survey an...

  • Article
  • Open Access
33 Citations
8,414 Views
19 Pages

Diversity of Volcanic Geoheritage in the Canary Islands, Spain

  • Javier Dóniz-Páez,
  • Esther Beltrán-Yanes,
  • Rafael Becerra-Ramírez,
  • Nemesio M. Pérez,
  • Pedro A. Hernández and
  • William Hernández

28 September 2020

Volcanic areas create spectacular landscapes that contain a great diversity of geoheritage. The study of this geoheritage enables us to inventory, characterise, protect and manage its geodiversity. The Canary Islands are a group of subtropical active...

  • Article
  • Open Access
7 Citations
2,692 Views
18 Pages

Metal(loid)s Transport in Hydrographic Networks of Mining Basins: The Case of the La Carolina Mining District (Southeast Spain)

  • Rosendo Mendoza,
  • Julián Martínez,
  • Javier Rey,
  • M. Carmen Hidalgo and
  • M. José Campos-Suñol

28 September 2020

This study analyses the distribution of the total metal(loid)s content accumulated in the sediments of the Grande River, the most important river course that runs through the old mining district of La Carolina (Jaén, Spain), whose waters are c...

  • Article
  • Open Access
16 Citations
3,687 Views
24 Pages

27 September 2020

Water erosion and evaluation of the average annual soil loss considering the potential effects of climate change are the focus of this study, based on the application of two empirical models, the RUSLE (Revised Universal Soil Loss Equation) and the E...

  • Article
  • Open Access
7 Citations
4,335 Views
19 Pages

26 September 2020

Archeological excavations and field survey of Neolithic sites during the last 100 years have formed a certain framework within which we developed an interpretation of Neolithic life in this area. Even though researchers have stressed the importance o...

  • Article
  • Open Access
12 Citations
4,040 Views
28 Pages

Verification of the LOGOS Software Package for Tsunami Simulations

  • Elena Tyatyushkina,
  • Andrey Kozelkov,
  • Andrey Kurkin,
  • Efim Pelinovsky,
  • Vadim Kurulin,
  • Kseniya Plygunova and
  • Dmitry Utkin

26 September 2020

Verification results for the LOGOS software package as applied to numerical simulations of tsunami waves are reported. The module of the LOGOS software package that is used for tsunami simulations is based on the numerical solution of three-dimension...

  • Review
  • Open Access
36 Citations
9,629 Views
23 Pages

Evidence of Gas Emissions from Permafrost in the Russian Arctic

  • Evgeny Chuvilin,
  • Valentina Ekimova,
  • Dinara Davletshina,
  • Natalia Sokolova and
  • Boris Bukhanov

24 September 2020

The active emission of gas (mainly methane) from terrestrial and subsea permafrost in the Russian Arctic has been confirmed by ample evidence. In this paper, a generalization and some systematization of gas manifestations recorded in the Russian Arct...

  • Article
  • Open Access
191 Citations
13,363 Views
29 Pages

Research Trends in Geotourism: A Bibliometric Analysis Using the Scopus Database

  • Gricelda Herrera-Franco,
  • Néstor Montalván-Burbano,
  • Paúl Carrión-Mero,
  • Boris Apolo-Masache and
  • María Jaya-Montalvo

23 September 2020

Geodiversity has elements of exceptional scientific value that are considered to represent geoheritage, or geological heritage. One way to conserve and promote the knowledge of these elements is through the initiatives of United Nations Educational,...

  • Article
  • Open Access
5 Citations
3,509 Views
19 Pages

23 September 2020

About a decade ago, the PERTI algorithm was launched as a tool for a data-adaptive probability-based analysis of electrical resistivity tomography datasets. It proved to be an easy and versatile inversion method providing estimates of the resistivity...

  • Article
  • Open Access
19 Citations
10,099 Views
32 Pages

23 September 2020

The use of mineral diagenetic indices and organic matter maturity is useful for reconstructing the evolution of sedimentary basins and critical assessments for potential source rocks for petroleum exploration. In this study, the relationship of clay...

  • Review
  • Open Access
27 Citations
6,217 Views
34 Pages

23 September 2020

For the interpretation of archaeological geophysical data as archaeological features, it is essential that the recorded anomalies can be clearly delineated and analyzed, and therefore, care has been taken to obtain the best possible data. However, as...

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Geosciences - ISSN 2076-3263