Přístupnostní navigace
E-application
Search Search Close
Publication detail
MAREČKOVÁ, K. NOVÁKOVÁ, H. ČÁSLAVSKÝ, J. PĚNČÍKOVÁ, H. GERŠL, M.
Original Title
Charakterizace zbarvení aragonitového útvaru "Opona" ve Zbrašovských aragonitových jeskyních
English Title
The characterization of aragonite decoration "Opona" coloration in Zbrasov aragonite caves
Type
journal article - other
Language
Czech
Original Abstract
The "Opona" (The curtain) formation is one of the most beautiful objects in the Zbrašov Aragonite Caves. In eighties, the color, which was original/y chalky white to glass-clear, started to change to gray and reddish brown in some parts. The main goal of th is study was the characterization of organic compounds from the "Opona" surface by mass spectrometry. For this purpose, samples of colored material were taken from several places at the "Opona" formation. Samples were extracted by organic solvent using accelerated solvent extraction and also under transmethylation conditions. Both extracts were then analyzed by capillary CG with mass spectrometric detection. Various chemical compounds were identified by this way, some of them can serve as the proof of anthropogenic activities in the cave (smoking, explosives application), and other ones are proofs of microbial activity in the samples. Unfortunately, no information concerning the coloration origin was obtained by this way. The reason probably is that the reddish color is caused by high-molecular-weight intracellular pigment, which is not amenable for GC; in this ease, application of another mass spectrometric method used for the analysis of high-molecular-weight compounds of biogenic origin (like electrospray and MALDI-TOF) would be useful
English abstract
Key words in English
Degradarion of aragonite decoration
Authors
MAREČKOVÁ, K.; NOVÁKOVÁ, H.; ČÁSLAVSKÝ, J.; PĚNČÍKOVÁ, H.; GERŠL, M.
Released
11. 4. 2006
Publisher
Česká speleologická společnost
Location
Sloup
ISBN
1211-8397
Periodical
Speleofórum
Year of study
25
State
Czech Republic
Pages from
80
Pages to
81
Pages count
2
BibTex
@article{BUT44002, author="Kateřina {Marečková} and Hana {Nováková} and Josef {Čáslavský} and Kateřina {Pěnčíková}", title="Charakterizace zbarvení aragonitového útvaru {"}Opona{"} ve Zbrašovských aragonitových jeskyních", journal="Speleofórum", year="2006", volume="25", pages="80--81", issn="1211-8397" }