Institute of Geology AS CR, v. v. i.

Medium-sized research center which main purpose is to gain, interpret and integrate the knowledge of the Earth System.

News

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Radek Mikuláš spoke about stromatoliths in the Czech radio programme "Studio Leonardo"

    Stromatolites are often reported as the oldest macroscopic fossils of the Earth. But what do we really
    know on them?
    The recorded broadcast id here (in Czech)

Vernissage of the exhibition "Landscape of the old mining areas in the neighbourhood of Tábor" in Café Barrande

    The vernissage of the exhibition "Landscape of the old mining areas in the neighbourhood of Tábor" of
    Jiří Žítt from the Institute of Geology CAS, v. v. i. went in Café Barrande together with exhibition of
    graphics of Jan Sklenář (National Muzeum, Prague) went in Café Barrande 5th March, 2015. The
    exhibition will take up to 26th March, 2015.
    Some photographs are here.

Michal Filippi contributed to the interview for the Příroda (Nature) Magazine

    Michal Filippi of the Institute of Geology CAS, v.v.i., together with Jiří Bruthans (Faculty of
    Science, Charles University in Prague) and Milan Geršl (Mendel University in Brno)
    contributed to the interview about discoveries in the Iranian salt karst for the Příroda
    Magazine (Nature) Magazine, No. 3-4, 2015.
    For the contents of the mentioned issue see here (in Czech).

Michal Filippi in a TV documentary about the Bohemian Paradise Geopark

    Michal Filippi from the Institute of Geology CAS, v.v.i, together with Jaroslav Řihořek (Faculty of
    Science, Charles University in Prague) participated in a TV documentary about the Bohemian
    Paradise Geopark broadcasted within the TV series “Nedej seˮ. They presented results of the
    research of sandstone landforms.
    Telerecording of the documentary see here (in Czech).

Success in the competition “Photogenic Science”

    Several colleagues from the Institute of Geology CAS, v.v.i., participated in the photographic competition
    “Photogenic Science”, and some of them managed to succeed. Leona Chadimová ranked 1st and 5th for
    her two photos in two different categories. A photograph made by Pavel Lisý was selected for the official
    calendar of the Czech Academy of Sciences for the year 2015. Finally, photographs by Leona Chadimová
    and Michal Filippi are presented within the web presentation “Stories of photographs”.
    For more information see here and here.

Matters of interest

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Cryogenic cave carbonates – a new tool to estimate the minimum permafrost depth of the Last Glacial

Cryogenic cave carbonates can be identified in caves based on their characteristic mode of occurrence, typical shape, unique carbon and oxygen stable isotope compositions, and based on ages confirming their formation during the Glacial. Low-ventilation caves generally show temperature close to those of the surrounding rock. Cooling of such caves to freezing and/or subfreezing temperature is possible only due to evolution of permafrost (permafrost is the zone of soils and rocks having temperature 0 °C or lower for at least two subsequent years).

Ichnofossils associated with slightly skeletonized body fossils, Middle Cambrian of the Barrandian area, Czech Republic

Sediments of the Middle Cambrian of the Barrandian area yielded several distinct morphotypes of ichnofossils preserved in a tight association with non- or slightly-mineralized animal body fossils, most often arthropods. These traces, in lesser diversity, were described from the Cambrian of the Barrandian area already in 2000 by the present author. Later, since 2006, analogous trace fossils have been described from classical Cambrian lagerstätten, namely Chengjiang and Burgess.

Mineral inclusions in placer zircon from the Ohře (Eger) Graben: New data on „strontiopyrochlore“

After qualitative examination of the inclusion inventory of 80 zircon megacrysts from alluvial placers of the Cenozoic alkali basalt area of northern Bohemia and southeastern Saxony, three representative megacrysts from the Podsedice deposit were selected for an in-depth study of inclusion minerals. Primary and secondary inclusions were distinguished and used as monitor for zircon-related syn- and epigenetic processes.

Interpretation of the Teplice Caldera history based on the LA-ICP-MS study of quartz crystal zoning

The Altenberg–Teplice Caldera (eastern Krušné Hory/Erzebirge) is the largest Variscan volcano-plutonic complex in the Bohemian Massif. It is composed of co-magmatic volcanics (peraluminous basal rhyolite and associated dacite, overlying three units of subaluminous Teplice rhyolite and granite porphyry) and plutonic granites (two intrusions of A-type granites). In this study, the internal structures and trace-element distributions within quartz grains were investigated using a laser ablation ICP-MS combined with a hot-cathode and scanning cathodoluminescence analysis.

About Institute

SuchdolInstitute of Geology AS CR, v. v. i. is a medium-sized research center which main purpose is to gain, interpret and integrate the knowledge of the Earth System and its geologic and biologic past, without which it would not be possible to understand the recent environment. The Earth system understood as a result of interaction of endogenous and exogenous geological processes, development of biota and anthropogenic effects. Co-evolution of the Earth system means close connection and constant mutual influence of biotic and abiotic processes resulting in changes of atmosphere composition, climatic changes and weathering rates, relief development, sedimentary basin development and genesis of some types of natural resource bearings.