You are currently viewing a new version of our website. To view the old version click .

Geosciences, Volume 2, Issue 4

December 2012 - 7 articles

  • Issues are regarded as officially published after their release is announced to the table of contents alert mailing list .
  • You may sign up for email alerts to receive table of contents of newly released issues.
  • PDF is the official format for papers published in both, html and pdf forms. To view the papers in pdf format, click on the "PDF Full-text" link, and use the free Adobe Reader to open them.

Articles (7)

  • Article
  • Open Access
8 Citations
6,873 Views
10 Pages

Hellenic Natural Zeolite as a Replacement of Sand in Mortar: Mineralogy Monitoring and Evaluation of Its Influence on Mechanical Properties

  • Dimitrios Vogiatzis,
  • Nikolaos Kantiranis,
  • Anestis Filippidis,
  • Evaggelos Tzamos and
  • Costas Sikalidis

22 November 2012

HEU-type zeolite-rich volcaniclastic tuff (Hellenic natural zeolite) is used as a raw material for the production of lighter mortars. The addition of natural zeolite in mortar mixtures of sand and Portland cement leads to a decrease of up to 18.35% u...

  • Article
  • Open Access
13 Citations
7,310 Views
21 Pages

12 November 2012

The authenticity of much of the stone-work along Queen’s Lane in central Oxford, UK presented an opportunity to produce a photographic survey from which a weathering index could be established. This represents a site-specific approach to devising a w...

  • Article
  • Open Access
5 Citations
8,438 Views
17 Pages

1 November 2012

Three temporally close stratigraphic sections were excavated in Glenshaw Formation of Athens County, Ohio. The described units are Upper Pennsylvanian (Gzhelian, 305–302 Ma) and located in the distal portion of the Appalachian foreland basin. Mudston...

  • Article
  • Open Access
40 Citations
13,605 Views
25 Pages

Oxygen-Dependent Morphogenesis of Modern Clumped Photosynthetic Mats and Implications for the Archean Stromatolite Record

  • Min Sub Sim,
  • Biqing Liang,
  • Alexander P. Petroff,
  • Alexander Evans,
  • Vanja Klepac-Ceraj,
  • David T. Flannery,
  • Malcolm R. Walter and
  • Tanja Bosak

11 October 2012

Some modern filamentous oxygenic photosynthetic bacteria (cyanobacteria) form macroscopic tufts, laminated cones and ridges that are very similar to some Archean and Proterozoic stromatolites. However, it remains unclear whether microbes that constru...

  • Article
  • Open Access
22 Citations
11,522 Views
14 Pages

Ocean Acidification and the End-Permian Mass Extinction: To What Extent does Evidence Support Hypothesis?

  • Stephen Kershaw,
  • Sylvie Crasquin,
  • Yue Li,
  • Pierre-Yves Collin and
  • Marie-Béatrice Forel

28 September 2012

Ocean acidification in modern oceans is linked to rapid increase in atmospheric CO2, raising concern about marine diversity, food security and ecosystem services. Proxy evidence for acidification during past crises may help predict future change, but...

  • Article
  • Open Access
13 Citations
11,471 Views
18 Pages

27 September 2012

For civil protection reasons there is a strong need to improve the inventory of areas that are more vulnerable to earthquake ground motions or to earthquake-related secondary effects, such as landslides, liquefaction or soil amplifications. The use o...

  • Article
  • Open Access
9 Citations
8,395 Views
25 Pages

26 September 2012

The Upper Pennsylvanian Casselman Formation of southeastern Ohio contains four distinct paleosol types that formed in alluvial systems within the distal Appalachian foreland basin. The properties of these paleosols as well as their small-scale latera...

Get Alerted

Add your email address to receive forthcoming issues of this journal.

XFacebookLinkedIn
Geosciences - ISSN 2076-3263