About: %22Cave pearls%22 as a by-product of building constructions

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Cave pearls are frequently found in disused adit leading bellow the Špilberk Hill in Brno (Czech Republic). Each pearl consists of (1) a core comprised of an extraneous rock fragment and (2) a body organized into light and dark calcite layers. The number of the main layers roughly corresponds to 30 years of the total adit age. The darker layers occasionally show a sub-structure consisting of 2-3 extremely fine layers of various gray tones. Dendrite-like structures were observed in some cases. Conditions, necessary for pearl formation, were recognized as follows: (1) percolating waters supersaturated with respect to calcite, (2) free rock fragments as a basis for calcite nucleation, and (3) turbulent water circulation in dripwater pools preventing the fragments to fix at pool bottom during calcite growth. Initial bigger irregular rock fragments (10-15 mm in diameter) lead to formation of pearls of irregular shape. Tiny fragments (1-3 mm in diameter) lead to near spherical pearls. Cave pearls are frequently found in disused adit leading bellow the Špilberk Hill in Brno (Czech Republic). Each pearl consists of (1) a core comprised of an extraneous rock fragment and (2) a body organized into light and dark calcite layers. The number of the main layers roughly corresponds to 30 years of the total adit age. The darker layers occasionally show a sub-structure consisting of 2-3 extremely fine layers of various gray tones. Dendrite-like structures were observed in some cases. Conditions, necessary for pearl formation, were recognized as follows: (1) percolating waters supersaturated with respect to calcite, (2) free rock fragments as a basis for calcite nucleation, and (3) turbulent water circulation in dripwater pools preventing the fragments to fix at pool bottom during calcite growth. Initial bigger irregular rock fragments (10-15 mm in diameter) lead to formation of pearls of irregular shape. Tiny fragments (1-3 mm in diameter) lead to near spherical pearls. (en)
Title	%22Cave pearls%22 as a by-product of building constructions %22Cave pearls%22 as a by-product of building constructions (en)
skos:prefLabel	%22Cave pearls%22 as a by-product of building constructions %22Cave pearls%22 as a by-product of building constructions (en)
skos:notation	RIV/00216224:14310/08:00028038!RIV10-MSM-14310___
http://linked.open...avai/riv/aktivita	P S Z
http://linked.open...avai/riv/aktivity	P(GA205/03/1128), S, Z(MSM0021622412)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2010
http://linked.open...aciTvurceVysledku	Faimon, Jiří Štelcl, Jindřich Buřival, Zbyněk Vávra, Václav Ličbinská, Monika
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Masarykova univerzita / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	358955
http://linked.open...ai/riv/idVysledku	RIV/00216224:14310/08:00028038
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	adit; calcite; concrete; dripwater pool; percolating water; growth; microstructure; pearl; rock fragment (en)
http://linked.open.../riv/klicoveSlovo	pearl adit concrete growth microstructure calcite dripwater pool percolating water rock fragment
http://linked.open...odStatuVydavatele	SK - Slovenská republika
http://linked.open...ontrolniKodProRIV	[0DED9433BDC9]
http://linked.open...i/riv/nazevZdroje	Slovenský kras (Acta Carsologica Slovaca)
http://linked.open...in/vavai/riv/obor	DD
http://linked.open...ichTvurcuVysledku	5 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Recent karst processes: speleothem destruction
http://linked.open...UplatneniVysledku	2008
http://linked.open...v/svazekPeriodika	46
http://linked.open...iv/tvurceVysledku	Buřival, Zbyněk Faimon, Jiří Vávra, Václav Štelcl, Jindřich Schwarzová, Monika
http://linked.open...n/vavai/riv/zamer	Interactions among the chemicals, environment and biological systems and their consequences on the global, regional and local scales (INCHEMBIOL)
issn	0560-3137
number of pages	3 (xsd:int)
http://localhost/t...ganizacniJednotka	14310

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