"P(ED2.1.00/03.0082)" . "27350" . "PROJEVY MOBILIZACE PRVK\u016E VZ\u00C1CN\u00DDCH ZEMIN (REE) V PODBESKYDSK\u00DDCH TE\u0160\u00CDNITECH"@cs . "PROJEVY MOBILIZACE PRVK\u016E VZ\u00C1CN\u00DDCH ZEMIN (REE) V PODBESKYDSK\u00DDCH TE\u0160\u00CDNITECH" . . . . . "PROJEVY MOBILIZACE PRVK\u016E VZ\u00C1CN\u00DDCH ZEMIN (REE) V PODBESKYDSK\u00DDCH TE\u0160\u00CDNITECH"@cs . "Mat\u00FDsek, Dalibor" . . . "CZ - \u010Cesk\u00E1 republika" . . "98" . . . . "Horniny t\u011B\u0161\u00EDnitov\u00E9 asicace vytv\u00E1\u0159ej\u00ED lo\u017En\u00ED \u017E\u00EDly a podmo\u0159sk\u00E9 v\u00FDlevy v sedimentech Slezsk\u00E9 jednotky Moravskoslezsk\u00FDch Beskyd. Svou povahou se jedn\u00E1 o foidick\u00E9 alkalick\u00E9 bazaltoidn\u00ED horniny. Obsahuj\u00ED zv\u00FD\u0161en\u00E9 obsahy REE, kter\u00E9 jsou v\u00E1zan\u00E9 p\u0159edev\u0161\u00EDm ve fluorapatitu. Je dokumentov\u00E1n v\u00FDskyt sekund\u00E1rn\u00EDch miner\u00E1l\u016F s obsahem REE. Tyto REE miner\u00E1ly vytv\u00E1\u0159ej\u00ED zrna mikrometrov\u00FDch rozm\u011Br\u016F. Rabdof\u00E1n-(Ce) se zv\u00FD\u0161en\u00FDm obsahem La a Ca tvo\u0159\u00ED krystalick\u00E9 povlaky na ploch\u00E1ch fluorapatitu a v mikroskopick\u00FDch p\u00F3rech nealterovan\u00FDch t\u011B\u0161\u00EDnit\u016F. V trhlin\u00E1ch t\u011B\u0161\u00EDnit\u016F a tak\u00E9 ve slab\u011B kontaktn\u011B metamorfovan\u00FDch sedimentech byly zji\u0161t\u011Bny syntaktitick\u00E9 sr\u016Fsty miner\u00E1l\u016F ze skupiny bastn\u00E4sit-(Ce) - synchysit-(Ce). Tyto REE miner\u00E1ly pravd\u011Bpodobn\u011B vznikly jako produkt postvulkanick\u00E9 hydroterm\u00E1ln\u00ED alterace. Na ploch\u00E1ch trhlin nav\u011Btral\u00FDch t\u011B\u0161\u00EDnit\u016F byl zji\u0161t\u011Bn rabdof\u00E1n-(Ce), rabdof\u00E1n-(La), brockitovou komponentou bohat\u00FD rabdof\u00E1n, cerianit-(Ce) a pravd\u011Bpodobn\u00FD wakefieldit-(Ce). Mechanizmus frakcionace je mo\u017En\u00E9 interpretovat jako produkt immobilizace Ce+4 v oxida\u010Dn\u00EDch podm\u00EDnk\u00E1ch a tak\u00E9 adsorbce Ce+4 na oxihydroxidech Mn a Fe." . "Evidence of rare earth elements (REE) mobilization in teschenites of the Beskydy Mts. region"@en . "RIV/61989100:27350/13:86088220" . . "1211-8796" . . "100264" . "Teschenite association, volcanic rocks, Silesian Unit, REE, rabdophane-(Ce), bastn\u00E4site-(Ce), synchysite-(Ce), cerianite-(Ce)."@en . . . "Horniny t\u011B\u0161\u00EDnitov\u00E9 asicace vytv\u00E1\u0159ej\u00ED lo\u017En\u00ED \u017E\u00EDly a podmo\u0159sk\u00E9 v\u00FDlevy v sedimentech Slezsk\u00E9 jednotky Moravskoslezsk\u00FDch Beskyd. Svou povahou se jedn\u00E1 o foidick\u00E9 alkalick\u00E9 bazaltoidn\u00ED horniny. Obsahuj\u00ED zv\u00FD\u0161en\u00E9 obsahy REE, kter\u00E9 jsou v\u00E1zan\u00E9 p\u0159edev\u0161\u00EDm ve fluorapatitu. Je dokumentov\u00E1n v\u00FDskyt sekund\u00E1rn\u00EDch miner\u00E1l\u016F s obsahem REE. Tyto REE miner\u00E1ly vytv\u00E1\u0159ej\u00ED zrna mikrometrov\u00FDch rozm\u011Br\u016F. Rabdof\u00E1n-(Ce) se zv\u00FD\u0161en\u00FDm obsahem La a Ca tvo\u0159\u00ED krystalick\u00E9 povlaky na ploch\u00E1ch fluorapatitu a v mikroskopick\u00FDch p\u00F3rech nealterovan\u00FDch t\u011B\u0161\u00EDnit\u016F. V trhlin\u00E1ch t\u011B\u0161\u00EDnit\u016F a tak\u00E9 ve slab\u011B kontaktn\u011B metamorfovan\u00FDch sedimentech byly zji\u0161t\u011Bny syntaktitick\u00E9 sr\u016Fsty miner\u00E1l\u016F ze skupiny bastn\u00E4sit-(Ce) - synchysit-(Ce). Tyto REE miner\u00E1ly pravd\u011Bpodobn\u011B vznikly jako produkt postvulkanick\u00E9 hydroterm\u00E1ln\u00ED alterace. Na ploch\u00E1ch trhlin nav\u011Btral\u00FDch t\u011B\u0161\u00EDnit\u016F byl zji\u0161t\u011Bn rabdof\u00E1n-(Ce), rabdof\u00E1n-(La), brockitovou komponentou bohat\u00FD rabdof\u00E1n, cerianit-(Ce) a pravd\u011Bpodobn\u00FD wakefieldit-(Ce). Mechanizmus frakcionace je mo\u017En\u00E9 interpretovat jako produkt immobilizace Ce+4 v oxida\u010Dn\u00EDch podm\u00EDnk\u00E1ch a tak\u00E9 adsorbce Ce+4 na oxihydroxidech Mn a Fe."@cs . . "Rocks of teschenite association form sills and submarine volcanic bodies in sediments of the Silesian Unit of the Moravo-Silesian Beskydy Mts. They represent foidic alkalic basaltoidic rocks. These rocks are enriched in REE which are bound mostly in fluorapatite. The occurrence of secondary REE minerals is documented. These REE minerals form grains in the range of micrometers. Rabdophane-(Ce) with increased content of La and Ca forms crystalline coatings on the surface of fluorapatite and in the microscopic pores of non-altered teschenites. In the fissures of teschenites as well as in the slightly contactmetamorphosed sediments, syntactic intergrowths of minerals from the group of bastn\u00E4site-(Ce) \u2013synchysite-(Ce) were found. These REE minerals were probably formed as a product of postvolcanic hydrothermal alterations. Following minerals were found at the fissure surfaces in partly weathered teschenites: rhabdophane-(Ce), rhabdophane-(La), rhabdophane with high content of brockite component, cerianite-(Ce) and probable wakefieldite-(Ce). The fractionation process can be interpreted as a result of immobilization of Ce+4 in oxidation conditions and also Ce+4 adsorption on oxihydroxides of Mn and Fe."@en . "12"^^ . "Evidence of rare earth elements (REE) mobilization in teschenites of the Beskydy Mts. region"@en . "2" . "1"^^ . . "RIV/61989100:27350/13:86088220!RIV14-MSM-27350___" . . "1"^^ . . "[CB959F57724F]" . . "Acta Musei Moraviae - Scientiae geologicae" . "PROJEVY MOBILIZACE PRVK\u016E VZ\u00C1CN\u00DDCH ZEMIN (REE) V PODBESKYDSK\u00DDCH TE\u0160\u00CDNITECH" . . .