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A paper co-authored by the Institute scientists published in Nature Communications journal

Three authors affiliated to the Institute of Geology of the CAS participated in the publication of a paper in one of the Nature journals portfolio. The paper appeared in the issue of open-access journal Nature Communications published on 9th August 2017. The study was produced within the Czech Science Foundation project “Combined use of novel and traditional stable isotope systems in identifying source components and processes of moldavite formation”. This research is a joint activity of scientists of the Czech Geological Survey, Institute of Geology of the CAS and Nuclear Physics Institute of the CAS, together with colleagues from foreign institutions. Using a combination of chromium isotopes and triple oxygen isotopes it was documented that one of types of impact glasses of the Zhamanshin impact structure in Kazakhstan contains a minor proportion of matter from the impactor. The impactor was identified to be a carbonaceous chondrite of a less common type. Moreover, the oxygen isotope data enabled to study the oxygen isotope exchange between the glass droplets and atmospheric oxygen. No admixture of meteorite matter and no exchange with atmospheric oxygen was evidenced for the Czech tektites –  moldavites. This combination of analytical approaches has been applied on impact-related glasses for the first time.

Scientific collaboration on the project and the book “Material Finds from the Renaissance Waste Pits at Prague Castle”

Šárka Jonášová and Roman Skála of the Department of Analytical Methods participated in the post-doc project No. 13-34374P of the Czech Science Foundation “Everyday life of inhabitants of the Prague Castle in times of the first Habsburgs. Material culture analysis set into Central European context.” The principal investigator of the project, Gabriela Blažková of the Department of Rescue Research - Workplace Prague Castle of the Institute of Archaeology of the Czech Academy of Sciences in Prague, was awarded with the prize for outstanding results in solution of grant projects by the President of the Czech Science Foundation. Among the most important outputs of the project is the book “Material Finds from the Renaissance Waste Pits at Prague Castle” published by the Institute of Archaeology last year. The scientists of the Institute of Geology together with the Prize winner authored the chapter “A chemical analysis of glass finds from early modern waste pits at Prague Castle” (Blažková et al., 2016, Castrum Pragense 13/II). For more information, please visit the Institute of Archaeology of the CAS web pages.

The team of Australian and Czech researchers described the environment of Moravian Karst during the Middle-Upper Paleolithic transition (published in Journal of Human Evolution, IF: 3.767)

Study of the Pod Hradem Cave (Moravian Karst) yielded new information about environmental conditions in the Moravian Karst during the Middle-Upper Paleolithic transition. The Pod Hradem Cave is the first archaeological cave site in the Czech Republic with such sedimentary and archaeological record from 25,000 – 45,000 years BP. New excavations confirm infrequent human visitation, and the diversity of lithic raw material suggests long-distance imports and ephemeral visits by highly mobile populations. The research was published in the Journal of Human Evolution on March 29, 2017.

Contemporary analogue of Medieval tramped floors

Fieldwork in the Eastern part of Romania was conducted within the Czech Science Foundation project Transformation of the Burgher House in the 13th Century (Brno–Prague–Wroclaw). The principal aim of the fieldwork was to describe analogies of Medieval trampled floors for a better understanding of their formation processes, maintenance and abandonment. Photo gallery.

A book on the Křivoklátsko area awarded the Miroslav Ivanov Prize for regional literature

The book Křivoklátsko – The Story of the Royal Hunting Forest, two authors of which work for the Institute of Geology of the Czech Academy of Sciences, was awared the Main regional prize for masterpieces in non-fiction literature at the recently held Book World Prague 2017 Fair. The prize is awarded by the Jaroměř-Josefov town – the birthplace of Miroslav Ivanov, the Club of Authors of Non-fiction Literature and the Administration of the Legacy of Egon Ervín Kisch.

Speleological discoveries awarded

Speleological discoveries in China (here), participated by the Institute of Geology CAS, received an award for the most important foreign discovery in 2016 at the 36th Speleoforum Meeting. Speleoforum is the annual meeting of members of the Czech Speleological Society and other cavers. Its purpose is to present results achieved during the past year. Speleoforum lasts three days and includes: (i) professional lectures in karstology, geology and other fields; (ii) lectures in practical speleology and (iii) excursions to the Moravian Karst. Together with the meeting, an annual journal “Speleoforum” is published.
Reference
Motyčka Z., Filippi M. (2017): Shaanxi 2016: První české stopy v Číně. Speleofórum 2017, roč. 36, Česká speleologická společnost - Praha. 59-69. (In Czech with English abstract)

Filip Tomek visits New Mexico Highlands University, USA for a six-month fellowship

Postdoctoral researcher Filip Tomek was awarded a grant supporting the development of international cooperation of early-career scientists by the Czech Academy of Sciences. The project includes a six-month fellowship at New Mexico Highlands University, Las Vegas, New Mexico. Main focus of this project involves research of magma flow and emplacement beneath volcanoes on the example of the Platoro caldera (Colorado) and Cerrillos Hills radial dike complex (New Mexico). For the photos click here and here.

An improved theory of moldavite formation

A paper significantly contributed by Karel Žák, Roman Skála, Lukáš Ackerman, Jana Ďurišová and Šárka Jonášová of the Institute of Geology CAS was published in the prestigious journal of Geochimica et Cosmochimica Acta recently. It extends information on the origin of moldavites. For more details click here.

Fossil jellyfish? Of course not!

One of the fossil specimens presented to the students of paleontology at Charles University (Prague) for almost a century was Medusites – a putative fossil of a jellyfish (medusa). It came from the Cambrian (lowermost Palaeozoic) siltstones exposed at Skryje (central Bohemia, Czech Republic). The students were, however, given incorrect information. A recent study of the original specimen and a few remaining specimens from the vicinity of Skryje testify the affiliation to the pineapple-shaped ichnogenus (i.e. trace fossil) Astropolichnus Crimes and Anderson, 1985. A new ichnospecies Astropolichnus bohemicus is established based on the material from the Skryje area. This material is the first occurrence of Astropolichnus in the middle Cambrian.
Reference: Radek Mikuláš & Oldřich Fatka (2017): Ichnogenus Astropolichnus in the Middle Cambrian of the Barrandian area, Czech Republic. Ichnos (USA), DOI: 10.1080/10420940.2017.1292908

A new price list

A new price list for laboratories of the Institute of Geology of the CAS, v. v. i., has been released. Click here.

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