2024

Have you ever heard that organisms breathe iron? Watch our short film to learn about our new approach to study iron mineral dynamics in soils and sediments in the field.

The new publication in Geochimica et Cosmochimica Acta demonstrates how aluminium can slow the transformation of jarosite, and change the products of its transformation. Jarosite is commonly associated with acid sulfate soils, and the study sheds new light on the possible effect of Al in stabilising jarosite in flooded acid sulfate soils.

The study shows that combined sulfate and limestone amendment of intermittently flooded rice growing soil is an effective treatment to decrease the amount of both arsenic and cadmium that is taken up by rice. The findings have been released in an article that was published in the journal Environmental Pollution.

A new study published in Geochimica Cosmochimica Acta explores how vivianite transformation occurs in intertidal sediments in the presence and absence of sulfide and calcium carbonate. The outcomes are important to understand the dynamics of P in sediments following sea level rise.

The new article, published in ACS Earth and Space Chemistry, explores how to use a range of laboratory-based mineral characterisation techniques to reveal the elemental substitution of jarosite. The results have implications for measuring the Al content in natural samples of jarosite.

The new article, published in the journal Chemosphere, is titled "Temporal development of arsenic speciation and extractability in acidified and non-acidified paddy soil amended with silicon-rich fly ash and manganese- or zinc-oxides under flooded and drainage conditions".