New imformations about the building of calcite straw stalactites

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F04%3A00011765" target="_blank" >RIV/00216224:14310/04:00011765 - isvavai.cz</a>

Alternative codes found

RIV/61989592:15310/04:00002451

Result on the web

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DOI - Digital Object Identifier

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Result language

čeština

Original language name

Nové poznatky o stavbě a vývoji kalcitových brček

Original language description

Based on the hypothesis that the destruction of calcite speleothems in the Moravian Karst caves could be consequence of chemical corrosion, detail mineralogical study of straw stalactites was accomplished. In stalactite wall, calcite was recognized as asingle phase. The stalactite wall was built by three layers: (1) outer one (porous, finely grained, to 0.1 mm thick), (2) middle one (mono-crystalline, to 0.6 mm thick), and (3) inner one (to 1 mm thick, composed from many single crystals, chaotically distributed, 0-0.3 in diameter). The mono-crystalline layers werw typically cracked due to calcite excellent fissionability along rhombohedron. An ocassionally observed crack widening could be induced by corrosion. Majority of stalactite corruption, however, resulted from mechanical breakages in the direction of the fissile cracks. Zhe chemical corrosion impacts were positively identified only on the outside wall of stalactite.

Czech name

Nové poznatky o stavbě a vývoji kalcitových brček

Czech description

Based on the hypothesis that the destruction of calcite speleothems in the Moravian Karst caves could be consequence of chemical corrosion, detail mineralogical study of straw stalactites was accomplished. In stalactite wall, calcite was recognized as asingle phase. The stalactite wall was built by three layers: (1) outer one (porous, finely grained, to 0.1 mm thick), (2) middle one (mono-crystalline, to 0.6 mm thick), and (3) inner one (to 1 mm thick, composed from many single crystals, chaotically distributed, 0-0.3 in diameter). The mono-crystalline layers werw typically cracked due to calcite excellent fissionability along rhombohedron. An ocassionally observed crack widening could be induced by corrosion. Majority of stalactite corruption, however, resulted from mechanical breakages in the direction of the fissile cracks. Zhe chemical corrosion impacts were positively identified only on the outside wall of stalactite.

Type

D - Article in proceedings

CEP classification

DB - Geology and mineralogy

OECD FORD branch

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Project

<a href="/en/project/GA205%2F03%2F1128" target="_blank" >GA205/03/1128: Recent karst processes: speleothem destruction</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2004

Confidentiality

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

Article name in the collection

Sborník IV. vědecké konference s mezinárodní účastí "Výskum, využívanie a ochrana jaskýň"

ISBN

80-8064-201-X

ISSN

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e-ISSN

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Number of pages

3

Pages from-to

75-77

Publisher name

Správa slovenských jaskýň

Place of publication

Liptovský Mikuláš-Žilina

Event location

Tále

Event date

Oct 5, 2003

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

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