EGU Blogs

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SSS
Soil System Sciences

Monday paper: Modelling microbial exchanges between forms of soil nitrogen in contrasting ecosystems

Pansu, M., Machado, D., Bottner, P., and Sarmiento, L.: Modelling microbial exchanges between forms of soil nitrogen in contrasting ecosystems, Biogeosciences, 11, 915-927, doi:10.5194/bg-11-915-2014, 2014. The questions It is well known that N and C combine to form organic molecules due to biological processes, although they come together from different pathways. C is extracted from carbon dioxide in the atmosphere and used to …[Read More]

SSS
Soil System Sciences

Lightening the clay (II)

  According to the previous post, tetrahedral and octahedral sheets combine to form layers, and we can find two main types of clay structures: structure 1:1 (one tetrahedron sheet and one octahedral sheet) and 2:1 (two tetrahedral sheets and one octahedral sheet). The basic structure of clays is this: Substitutions between cations may occur in the tetrahedral and octahedral …[Read More]

SSS
Soil System Sciences

Lightening the clay (I)

“The more any indivisible exceeds, the heavier it is”. Democritus (c. 460 – c. 370 BC). What is clay? Clays are particles. Very, very small mineral particles. You cannot see them, you cannot handle them… but unity makes strength. Clays are one of the major mineral components of the soil, whose chemical and physical properties …[Read More]

Geology for Global Development

Friday Photo (128) – Cultural Understanding Workshop (Tanzania)

  Cultural Understanding Workshop (Tanzania) As part of the recent YES Network Congress in Tanzania, GfGD’s Director ran a half-day workshop on cultural understanding and its application to geoscience projects in the developing world. These images show some of the interactive activities that participants took part it. [Credit: Joel Gill, Geology for Global Development].

Green Tea and Velociraptors

Top scientific publisher chooses not to advance open access By Erin McKiernan, independent, and Jon Tennant, Imperial College London Access to research is limited worldwide by the high cost of subscription journals, which force readers to pay for their content. The use of scientific research in new studies, educational material and news is often restricted by …[Read More]

GeoLog

GeoCinema Online: Our changing Climate

Welcome to the third instalment of Geocinema! The focus this week is on climate change and how it impacts on local communities. Sit back, relax and make sure you’ve got a big bucket of popcorn on the go, as this post features a selection of short documentaries as well as trailers of feature length films. …[Read More]