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Geosciences, Volume 13, Issue 8

August 2023 - 34 articles

Cover Story: The complex and locally variable mosaic of sedimentary units seen on modern passive margins mitigates the significant exchange of seawater and groundwater offshore. Discharge of offshore groundwater to the ocean can transmit contaminants and nutrients that may contribute as much water as river discharge. This study examines sediment deposits 2–20 km off the Isle of Palms, South Carolina, using an integrated geophysical and sedimentological approach that included 13 sediment vibracores collected at intersections of high-resolution seismic profiles. The numerous small paleochannels found in this area were most likely former estuarine channels comprising a drowned marsh environment that confines groundwater flow. Pulses of groundwater discharge have been detected just beyond the paleochannels. This suggests that mapping paleochannel systems is important for predicting groundwater flow. View this paper
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Articles (34)

  • Article
  • Open Access
3 Citations
2,770 Views
21 Pages

Modelling the presence and the effect of a thin weak layer of soil or rock in a slope stability analysis performed through the finite element method (FEM) presents several problems of purely numerical nature. This paper deals with a parametric analys...

  • Article
  • Open Access
1 Citations
2,731 Views
17 Pages

The spatial variations in Quaternary sediments on the inner continental shelf are produced by the progression of depositional environments during the latest sea-level rise, and this sedimentary architecture plays a fundamental role in controlling gro...

  • Article
  • Open Access
6 Citations
2,095 Views
25 Pages

Fluid-Related Features in the Offshore Sector of the Sciacca Geothermal Field (SW Sicily): The Role of the Lithospheric Sciacca Fault System

  • Dario Civile,
  • Luca Baradello,
  • Flavio Accaino,
  • Massimo Zecchin,
  • Emanuele Lodolo,
  • Giulia Matilde Ferrante,
  • Nora Markezic,
  • Valentina Volpi and
  • Mihai Burca

The Sciacca basin extends in the southwestern part of Sicily and hosts an important geothermal field (the Sciacca Geothermal Field) characterized by hot springs containing mantle gasses. Newly acquired high-resolution seismic profiles (Boomer data) i...

  • Article
  • Open Access
1 Citations
2,103 Views
33 Pages

Ancient Aeolian Reservoirs of the East Siberia Craton

  • Michail V. Shaldybin,
  • Svetlana Kvachko,
  • Maxim Rudmin,
  • Alexey Plyusnin and
  • Iliya Kuznetsov

Fine-grained strata deposited on the Eastern Siberian craton are predominantly considered to mainly consist of Neoproterozoic sandstones. Clastic rocks near the unconformity border of the Ediacaran and the Riphean are represented by sandstone and sil...

  • Feature Paper
  • Article
  • Open Access
1 Citations
2,163 Views
21 Pages

The Relationship between Bacterial Sulfur Cycling and Ca/Mg Carbonate Precipitation—Old Tales and New Insights from Lagoa Vermelha and Brejo do Espinho, Brazil

  • Vanessa Fichtner,
  • Simon L. Schurr,
  • Harald Strauss,
  • Crisógono Vasconcelos,
  • Katja E. Goetschl,
  • Camila Areias,
  • Catia F. Barbosa and
  • Adrian Immenhauser

Over the few past decades, the concept of microbial sulfur cycling catalyzing the precipitation of CaMg (CO3)2 at low temperatures (<40 °C) has been studied intensely. In this respect, two hypersaline lagoons, Lagoa Vermelha and Brejo do Espin...

  • Article
  • Open Access
5 Citations
2,301 Views
15 Pages

First Calibrated Methane Bubble Wintertime Observations in the Siberian Arctic Seas: Selected Results from the Fast Ice

  • Denis Chernykh,
  • Natalia Shakhova,
  • Vladimir Yusupov,
  • Elena Gershelis,
  • Boris Morgunov and
  • Igor Semiletov

This paper presents the results of an acoustic survey carried out from the fast ice in the shallow waters of the East Siberian Arctic Shelf (ESAS) using a single beam echosounder. The aim of this paper is to demonstrate an improved approach to study...

  • Article
  • Open Access
1 Citations
3,010 Views
28 Pages

A Lacustrine Record for the Cretaceous–Paleogene Boundary—Yacoraite Fm., (Northwest Argentina)

  • Damaris Montano,
  • Marta Gasparrini,
  • Sébastien Rohais and
  • Ramon De Luca

The Yacoraite Fm. (Salta rift basin, Argentina) consists of a mixed carbonate–siliciclastic lacustrine succession, interbedded with volcanic ash layers and organised in four third-order stratigraphic sequences. It is one of the few sites in Sou...

  • Article
  • Open Access
8 Citations
2,813 Views
30 Pages

The sedimentary dynamics and geological evolution of the Naples canyons during the Late Quaternary have been studied based on sedimentological and seismo-stratigraphic data. Several factors, including the sedimentary environments, tectonic setting, a...

  • Article
  • Open Access
19 Citations
4,865 Views
36 Pages

U-Pb Zircon Geochronology of Detrital and Ash Fall Deposits of the Southern Paraná Basin: A Contribution for Provenance, Tectonic Evolution, and the Paleogeography of the SW Gondwana

  • Ruy Paulo Philipp,
  • Ubiratan Ferrucio Faccini,
  • Cesar Leandro Schultz,
  • Gustavo Zvirtes,
  • Matheus Philippe Bruckmann,
  • Ernesto Lavina,
  • Joice Cagliari,
  • Andrea Ritter Jelinek,
  • Renata Guimarães Netto and
  • Adriano Roessler Viana
  • + 1 author

Zircon U-Pb geochronology was applied to investigate the provenance, depositional ages, and paleogeography of the southwestern Gondwana in detrital and ash fall sediments from Carboniferous to Jurassic succession of the southern Paraná Basin....

  • Article
  • Open Access
5 Citations
2,441 Views
16 Pages

Petrographic and Geotechnical Features of Dir Volcanics as Dimension Stone, Upper Dir, North Pakistan

  • Muhammad Nawaz,
  • Waqas Ahmed,
  • Muhammad Yasir,
  • Ihtisham Islam,
  • Hammad Tariq Janjuhah,
  • George Kontakiotis,
  • Assimina Antonarakou and
  • Christina Stouraiti

The utilization of dimension stone in construction has been prevalent since ancient times; however, its application in modern construction has gained significant attention over the last few decades. This research aimed to assess the physical and stre...

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Geosciences - ISSN 2076-3263