Medium-sized research center which main purpose is to gain, interpret and integrate the knowledge of the Earth System.
Geologický ústav AV nabízí Terénní geologické exkurze v Praze a středních Čechách, podle domluvy i v dalších regionech, s přihlédnutím ke konkrétnímu zájmu veřejnosti, studentů a pedagogů. Je možné se hlásit individuálně - v tom případě nabídneme přehled již naplánovaných exkurzí - i jako kolektivy.
Dopravu (hromadná doprava, vlastní autobus) si zajistí zájemci sami. Ústav nabízí konzultaci o místě exkurze, itinerář a odborné vedení.
Navrhovaný termín: Podle domluvy o konkrétní lokalitě, od 4. května do 14. června 2015.
Tracker of Dinosaurs and Intricate Soul - interview "Milliards of years in stone" in the "Týden" journal
Radek Mikuláš is a specialist in the study of fossil traces. They may be preserved in various rocks dated back from both close and remote times of the Earth history. Interviewed by the Týden Journal, Radek Mikuláš talked not only on enigmas hidden in stone, but also on his craze for discoveries and on his endless battle with depression.
The interview (in Czech)
The advance in science consists, among others, of falsifying the previous theories; thereby, the advance is tightly connected with failure, says Radek Mikuláš, a researcher of the Institute of Geology, CAS. Each scientist should be ready to accept that his/her opinion is incorrect but, in reality, only few people are capable to do this.
The interview (in Czech)
Where to find fossil traces of past animals? How did they originate, and what can be learnt by reading them? These and many other questions were put to Radek Mikuláš from the Institute of Geology, Czech Academy of Sciences. For our understanding the fossil traces, he visited unique geologic exposures throughout the Czech Republic and he compared them to places where analogous traces originate at present.
The video and the photogalery are here (in Czech)
Exkurzí v Geologickém ústavu AVČR se ve dnech 6.-7. listopadu 2014 zúčastnili zástupci všech generací. Zájem
vzbudila chemická laboratoř, kterou děti vnímaly jako „svět kouzel“. Na jiném místě bylo možno vyzkoušet
měření magnetismu a radioaktivity běžných horninových vzorků. V laboratoři mikrosondy si děti zkusily 3D brýle.
Snažili jsme se, aby naši návštěvníci nejen viděli, ale mohli si geologický materiál sami ohmatat… a částečně i
odnést s sebou domů.
Matters of interest
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.
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.
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.
Kozlowskii Event: mass faunal extinction and global environmental perturbations recorded in the upper Silurian succession of the Prague Synform.
Ladislav Slavík, Petr Štorch
Institute 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.