Tracing the origin of cave sands: State of the art in the Moravian Karst

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F17%3A00000361" target="_blank" >RIV/00025798:_____/17:00000361 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.uis-speleo.org/index.php?option=com_content&view=article&id=92&Itemid=417" target="_blank" >http://www.uis-speleo.org/index.php?option=com_content&view=article&id=92&Itemid=417</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Tracing the origin of cave sands: State of the art in the Moravian Karst

Popis výsledku v původním jazyce

The analyses of translucent heavy minerals in cave sands has brought good results in provenance studies due to distinct composition of assemblages. In the case of Moravian Karst, Czech Republic, there are several specific “end members” controlled by surrounding rock complexes. Granitoids and respectively Devonian clastics at the western vicinity of Moravian karst limestone strip are rich in amphibole, epidote and zircons. The Northerly complex of lower Carboniferous flysh deposits (Culmian facies turbidites) has brought a mixture of epidotes and garnets. The Eastern neigbourhood flysh deposits has also been a source of garnets. Cretaceous paleokarst deposits have most important typomorphic minerals staurolite and kyanite. Miocene Ottnangian sands are almost always rich in staurolite. Finally, the Pleistocene loesses have a typical amphibole-garnet mixture. That is why the comparison and evaluation of translucent heavy mineral assemblages of allochthonous sands should serve in the caves of Moravian karst (and thus off course in many karst caves of the world) as a key to their source and/or their origin. Final task is to understand better the history of karst, or more often of the paleokarst processes.

Název v anglickém jazyce

Tracing the origin of cave sands: State of the art in the Moravian Karst

Popis výsledku anglicky

The analyses of translucent heavy minerals in cave sands has brought good results in provenance studies due to distinct composition of assemblages. In the case of Moravian Karst, Czech Republic, there are several specific “end members” controlled by surrounding rock complexes. Granitoids and respectively Devonian clastics at the western vicinity of Moravian karst limestone strip are rich in amphibole, epidote and zircons. The Northerly complex of lower Carboniferous flysh deposits (Culmian facies turbidites) has brought a mixture of epidotes and garnets. The Eastern neigbourhood flysh deposits has also been a source of garnets. Cretaceous paleokarst deposits have most important typomorphic minerals staurolite and kyanite. Miocene Ottnangian sands are almost always rich in staurolite. Finally, the Pleistocene loesses have a typical amphibole-garnet mixture. That is why the comparison and evaluation of translucent heavy mineral assemblages of allochthonous sands should serve in the caves of Moravian karst (and thus off course in many karst caves of the world) as a key to their source and/or their origin. Final task is to understand better the history of karst, or more often of the paleokarst processes.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10505 - Geology

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název statě ve sborníku

17th INTERNATIONAL CONGRESS OF SPELEOLOGY Sydney, NSW, Australia July 22–28, 2017 Proceedings VOLUME 2

ISBN

978-0-9808060-5-2

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

512-515

Název nakladatele

Australian Speleological Federation

Místo vydání

Sydney

Místo konání akce

Sydney - Penrith

Datum konání akce

23. 7. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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