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Geosciences, Volume 6, Issue 2

2016 June - 14 articles

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Articles (14)

  • Article
  • Open Access
18 Citations
10,120 Views
29 Pages

Disseminated Mississippi Valley-type (MVT) mineralization occurs throughout northeastern Wisconsin, USA, and is recognized as the source of regionally extensive natural groundwater contamination in the form of dissolved arsenic, nickel, and other rel...

  • Article
  • Open Access
28 Citations
15,094 Views
23 Pages

Ore Petrography Using Optical Image Analysis: Application to Zaruma-Portovelo Deposit (Ecuador)

  • Edgar Berrezueta,
  • Berta Ordóñez-Casado,
  • Wilson Bonilla,
  • Richard Banda,
  • Ricardo Castroviejo,
  • Paul Carrión and
  • Stalin Puglla

Optical image analysis (OIA) supporting microscopic observation can be applied to improve ore mineral characterization of ore deposits, providing accurate and representative numerical support to petrographic studies, on the polished section scale. In...

  • Article
  • Open Access
1 Citations
6,601 Views
14 Pages

Climate change has led to an increase in extreme weather events and desertification of vast areas of southern Argentina. Water shortages are a major concern, and this problem is expected to be exacerbated in the future. An exploration program was und...

  • Article
  • Open Access
4 Citations
6,785 Views
11 Pages

Surface Area Variability of a North-Central Tanzanian Crater Lake

  • Lindsey Higgins,
  • Alexander J. Koutsouris,
  • Lars-Ove Westerberg and
  • Jan Risberg

A history of modern (1973–2015) surface area variability for Lake Basotu in north-central Tanzania has been reconstructed using archived Landsat images from the dry season between June and October. This record was compared to local weather data as we...

  • Review
  • Open Access
42 Citations
9,396 Views
11 Pages

Lacustrine sediment accumulation provides meaningful and diverse long-term records of environmental change. This overview highlights the usefulness of the paleolimnological approach in evaluating the magnitude and direction of human-induced environme...

  • Article
  • Open Access
3 Citations
6,981 Views
11 Pages

Tropical Storm Debby brought severe flooding to portions of southwestern Florida during the summer of 2012. Remotely-sensed images were collected to document the flooding and test the results of Hydrologic and Hydraulic (H & H) storm water models...

  • Article
  • Open Access
20 Citations
8,519 Views
20 Pages

Multi-Stage Silicification of Pliocene Wood: Re-Examination of an 1895 Discovery from Idaho, USA

  • Mike Viney,
  • Dagmar Dietrich,
  • George Mustoe,
  • Paul Link,
  • Thomas Lampke,
  • Jens Götze and
  • Ronny Rößler

The 1895 discovery of a petrified tree near Clover Creek in south-central Idaho, USA, attracted worldwide attention and resulted in the naming of a new species of ancient oak, Quercinium pliocaenicum Schuster. For more than a century, the discovery h...

  • Review
  • Open Access
8 Citations
12,345 Views
9 Pages

The reconstruction of the chronology of historical buildings is a tricky issue, as usually there are not historical documents that allow the assessment of construction phases, and some materials are hardly reliable for the use of dating techniques (e...

  • Article
  • Open Access
10 Citations
4,777 Views
6 Pages

The systematic analysis of mortars from monuments or historic buildings and the simultaneous study of the construction environment show that it was common practice to use naturally occurring sand from local rivers or streams for the production of the...

  • Article
  • Open Access
17 Citations
10,955 Views
19 Pages

Seismic Hazard Analysis along Koyna Dam Area, Western Maharashtra, India: A Contribution of Remote Sensing and GIS

  • Barbara Theilen-Willige,
  • Sainath P. Aher,
  • Praveen B. Gawali and
  • Laxmi B. Venkata

The Koyna-Warna area in Maharashtra, Western India, is one of the world’s best examples of reservoir-induced seismicity. The occurrence of earthquakes in the vicinity of Koyna Dam (Shivaji Sagar Lake) started since 1962, soon after the initiation of...

  • Article
  • Open Access
6 Citations
5,346 Views
15 Pages

Due to complicated and undefined systematic errors in satellite observation, data assimilation integrating model states with satellite observations is more complicated than field measurements-based data assimilation at a local scale. In the case of S...

  • Article
  • Open Access
19 Citations
12,289 Views
34 Pages

GIS and Optimisation: Potential Benefits for Emergency Facility Location in Humanitarian Logistics

  • Oscar Rodríguez-Espíndola,
  • Pavel Albores and
  • Christopher Brewster

Floods are one of the most dangerous and common disasters worldwide, and these disasters are closely linked to the geography of the affected area. As a result, several papers in the academic field of humanitarian logistics have incorporated the use o...

  • Review
  • Open Access
66 Citations
9,279 Views
20 Pages

Groundwater Dependent Ecosystem (GDE) protection is increasingly being recognized as essential for the sustainable management and allocation of water resources. GDE services are crucial for human well-being and for a variety of flora and fauna. Howev...

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Geosciences - ISSN 2076-3263