Matters of interest

Microbial precipitates in old iron ore mines (central Bohemia)

One of the preserved galleries in the former iron-ore mining district of Zdice (35 km SW of Prague) originated between 1950 and 1965. The iron-rich layer, Ordovician (460 million years) in age, was found to be of low thickness and low grade to be economic. The present study of the gallery is focused on presently forming secondary precipitates of iron and calcium compounds. It is likely that some of the precipitates are microbially induced, with a significant involvement of iron bacteria. Photo gallery.

Geological research in the ancient city Petra, Jordan

A group of geologists from the Faculty of Science UK (J. Bruthans with his students), Institute of Geology (M. Filippi) and from the AQH, s.r.o. company (J. Jäger) cooperated in the summer with a team of archaeologists led by Dr. Cynthia Finlayson from Brigham Young University in Utah (USA). The main task of the Czech group was to clean hardly accessible niches in the monumental Ad Deir temple in the ancient rock city of Petra in Jordan. Specifically, it was the excavation of about 8 cubic meters of sediment, deposited here over last 2000 years.

A new species of calciphilous Cortinarius from the Czech Karst

The number of species of macrofungi in Central Europe is estimated to a several thousands. Despite the intensive work of European mycologists in the last decades, new macrofungal species are still being described from Europe. The occurrence of many species is influenced by geological bedrock. Macrofungi are not restricted to specific rocks but prefer basic or acid soils derived from various types of rocks. This relationship is one of the areas studied by the scientific discipline called geomycology.

Moravian Sahara or Moravian Lake?

Research conducted in the Strážnické Pomoraví located in the Lower Moravian Basin is focused on climate and human impact on the Morava River behavior. The Morava River floodplain borders with an area called the Moravian Sahara covering with sand dunes up to 10 m high which were blown out from an underlaying deposits. These underlaying gravely sands (up to 30 m thick) have been traditionally interpreted as the wind-blown sediments.