Provenance of a rock crystal artefact from Bohdalec in the Bohemian-Moravian Highlands

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F23%3A00132722" target="_blank" >RIV/00216224:14310/23:00132722 - isvavai.cz</a>

Result on the web

<a href="https://actarerumnaturalium.cz/aktualni-cislo/" target="_blank" >https://actarerumnaturalium.cz/aktualni-cislo/</a>

DOI - Digital Object Identifier

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Result language

čeština

Original language name

Provenience křišťálového artefaktu od Bohdalce na Českomoravské vrchovině

Original language description

New rock crystal artefacts were discovered near the village of Bohdalec. They probably originate from a workshop for the processing of raw rock crystal materials in the same area. Rock crystals found in eluvial-fluvial sediments in a wider area were examined as comparative material. In the current study, fluid inclusions were investigated to determine the provenance of the examined materials. Optical microscopy, microthermometry and Raman spectroscopy were methods used for this work. The study of fluid inclusions showed that two- (L+V) and three- (L1±L2+V) phase aqueous-carbonic inclusions are present in the studied samples. Aqueous system H2O-NaCl was identified in the Type 3 fluid inclusions (L+V).Type 1 (L1±L2+V) and Type 2 (L1±L2+V) inclusions contain a carbonic phase and an aqueous solution. Raman spectroscopy made it possible to specify the composition of the carbonic phase and to define the fluid system enclosed in the studied fluid inclusions (Type 1 and Type 2) as H2O-NaCl-CO2-CH4-N2. The results of the measurements were compared with published data from the same area, where the presence of fluids containing CO2 was also documented, and the melting temperature of solid CO2 also indicated the presence of other gases. The data acquired in this study and also their comparison with published data lead to the conclusion that the provenance of the found rock crystal artefacts could be located in the area between Žďár nad Sázavou – Nové Město na Moravě – Radostín nad Oslavou - Sklené nad Oslavou, and Bobrová.

Czech name

Provenience křišťálového artefaktu od Bohdalce na Českomoravské vrchovině

Czech description

New rock crystal artefacts were discovered near the village of Bohdalec. They probably originate from a workshop for the processing of raw rock crystal materials in the same area. Rock crystals found in eluvial-fluvial sediments in a wider area were examined as comparative material. In the current study, fluid inclusions were investigated to determine the provenance of the examined materials. Optical microscopy, microthermometry and Raman spectroscopy were methods used for this work. The study of fluid inclusions showed that two- (L+V) and three- (L1±L2+V) phase aqueous-carbonic inclusions are present in the studied samples. Aqueous system H2O-NaCl was identified in the Type 3 fluid inclusions (L+V).Type 1 (L1±L2+V) and Type 2 (L1±L2+V) inclusions contain a carbonic phase and an aqueous solution. Raman spectroscopy made it possible to specify the composition of the carbonic phase and to define the fluid system enclosed in the studied fluid inclusions (Type 1 and Type 2) as H2O-NaCl-CO2-CH4-N2. The results of the measurements were compared with published data from the same area, where the presence of fluids containing CO2 was also documented, and the melting temperature of solid CO2 also indicated the presence of other gases. The data acquired in this study and also their comparison with published data lead to the conclusion that the provenance of the found rock crystal artefacts could be located in the area between Žďár nad Sázavou – Nové Město na Moravě – Radostín nad Oslavou - Sklené nad Oslavou, and Bobrová.

Type

J_ost - Miscellaneous article in a specialist periodical

CEP classification

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OECD FORD branch

10505 - Geology

Project

<a href="/en/project/GA19-05198S" target="_blank" >GA19-05198S: Greisenization and albitization - geological processes potentially concentrating some critical raw materials for modern technologies</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Acta rerum naturalium

ISSN

2336-7113

e-ISSN

1801-5972

Volume of the periodical

29

Issue of the periodical within the volume

2023

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

6

Pages from-to

5-10

UT code for WoS article

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EID of the result in the Scopus database

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