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Geosciences, Volume 8, Issue 11

November 2018 - 43 articles

Cover Story: Coral tsunami boulders in Ishigaki Island, Japan showed a measurable intensity of remanent magnetization, although it is well known that corals skeletons have extremely weak remanent magnetization. To know what the origin of remanence is, in this study, we characterized magnetic assemblages in this coral skeleton to determine whether it is of biogenic or detrital magnetite using first-order reversal curve (FORC) measurements, ferromagnetic resonance (FMR) spectroscopy, and petrological observations through field-emission type scanning electron microscope (FE-SEM) with an acid treatment. Our findings indicate that the magnetic assemblage in coral tsunami boulders consists of biogenic-origin single-domain magnetites with a trace amount of detrital component. Therefore, fossil coral skeletons in Ishigaki Island have great potential for utilization for paleomagnetic studies. View this paper
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Articles (43)

  • Article
  • Open Access
16 Citations
7,514 Views
14 Pages

21 November 2018

The sweetness seismic attribute is a very useful tool for proper description of the depositional environment, reservoir quality and lithofacies discrimination. This paper shows that depositional channels and turbidity sandstones deposited during the...

  • Article
  • Open Access
14 Citations
5,747 Views
21 Pages

Mud Flow Reconstruction by Means of Physical Erosion Modeling, High-Resolution Radar-Based Precipitation Data, and UAV Monitoring

  • Phoebe Hänsel,
  • Andreas Kaiser,
  • Arno Buchholz,
  • Falk Böttcher,
  • Stefan Langel,
  • Jürgen Schmidt and
  • Marcus Schindewolf

21 November 2018

Storm events and accompanying heavy rain endanger the silty soils of the fertile and intensively-used agricultural landscape of the Saxon loess province in the European loess belt. In late spring 2016, persistent weather conditions with repeated and...

  • Article
  • Open Access
5 Citations
4,378 Views
12 Pages

20 November 2018

Ground Penetrating Radar (GPR) images are affected, to some degree, by the relative orientation of antennas and subsurface targets. This is particularly true not only for targets that show a significant directivity, but also for inclined planes, such...

  • Article
  • Open Access
1 Citations
3,500 Views
20 Pages

16 November 2018

Bacterial–mineral aggregates are the products of a tight biogeochemical coupling between microbes and geological media and play an outsized role in governing the composition of natural waters through biogeochemical cycling and mineral formation...

  • Article
  • Open Access
10 Citations
7,975 Views
13 Pages

Precious Metal Enrichment at the Myra Falls VMS Deposit, British Columbia, Canada

  • Daniel Marshall,
  • Carol-Anne Nicol,
  • Robert Greene,
  • Rick Sawyer,
  • Armond Stansell and
  • Ross Easterbrook

15 November 2018

Gold, present as electrum, in the Battle Gap, Ridge North-West, HW, and Price deposits at the Myra Falls mine, occurs in late veinlets cutting the earlier volcanogenic massive sulphide (VMS) lithologies. The ore mineral assemblage containing the elec...

  • Article
  • Open Access
2 Citations
4,684 Views
10 Pages

Statistical Analysis of Displacement and Length Relation for Normal Faults in the Barents Sea

  • Dmitriy Kolyukhin,
  • Anita Torabi,
  • Audun Libak,
  • Behzad Alaei and
  • Tatiana Khachkova

14 November 2018

This paper is devoted to the statistical analysis of dependence between fault length (L) and displacement (D). The main purpose of this work is to study the scaling relations between fault length and displacement using a database that includes datase...

  • Article
  • Open Access
16 Citations
4,322 Views
14 Pages

14 November 2018

Groundwater monitoring requires costly in situ networks, which are difficult to maintain over long time periods, especially in countries facing economic recession such as Greece. Our work aims at providing a methodology to estimate groundwater abstra...

  • Article
  • Open Access
15 Citations
5,830 Views
17 Pages

14 November 2018

Field studies of biochar addition to soil and nutrient cycling using 15N fertilizers in temperate agriculture are scant. These data are required in order to make evidence based assessments. This study was conducted to test the hypothesis that biochar...

  • Technical Note
  • Open Access
4 Citations
3,334 Views
8 Pages

13 November 2018

To prevent online models diverging from reality they need to be updated to current conditions using observations and data assimilation techniques. A way of doing this for distributed hydrodynamic urban drainage models is to use the Ensemble Kalman Fi...

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Geosciences - ISSN 2076-3263Creative Common CC BY license