"2012-03-30+02:00"^^ . . . . "Project was fulfilled according proposal. Until now only one article was published. Others are under review or accepted."@en . "1"^^ . "2012-12-31+01:00"^^ . "1"^^ . . . . "0"^^ . " granitoids" . . . "http://www.isvav.cz/projectDetail.do?rowId=GAP210/10/1309"^^ . "Projekt prob\u011Bhl podle p\u0159ihl\u00E1\u0161ky. Dosud vy\u0161la pouze jedna publikace. Ostatn\u00ED v review nebo v tisku."@cs . . . "galium" . . " geochemical" . . "9"^^ . . "9"^^ . "Chov\u00E1n\u00ED geochemick\u00FDch dvojic prvk\u016F Al/Ga a Si/Ge v r\u016Fzn\u00FDch typech kysel\u00FDch silik\u00E1tov\u00FDch tavenin" . "2014-01-30+01:00"^^ . . . . . "galium; germanium; granitoids; geochemical; twins"@en . " germanium" . . "C\u00EDlem projektu je definovat obsah Ga a Ge a pom\u011Bry prvk\u016F Al/Ga a Si/Ge v r\u016Fzn\u00FDch typech p\u0159\u00EDrodn\u00EDch silik\u00E1tov\u00FDch tavenin (granitoid\u016F). Granitoidy reprezentuj\u00ED produkty parci\u00E1ln\u00EDho taven\u00ED a n\u00E1sledn\u00E9ho v\u00FDvoje taveniny (frak\u010Dn\u00ED krystalizac\u00ED, m\u00ED\u0161en\u00EDm, reakcemi s fluidy) v r\u016Fzn\u00FDch geotektonick\u00FDch podm\u00EDnk\u00E1ch zemsk\u00E9 k\u016Fry. Obsahy Ga a Ge budou zji\u0161t\u011Bny v celkov\u00FDch vzorc\u00EDch hornin a v jednotliv\u00FDch horninotvorn\u00FDch miner\u00E1lech - k\u0159emen, \u017Eivce, sl\u00EDdy, amfiboly, topaz aj. P\u0159edpokl\u00E1d\u00E1me nalezen\u00ED rozd\u00EDl\u016F v Al/Ga a Si/Ge pom\u011Brech jak mezi horninov\u00FDmi s\u00E9riemi (rozd\u00EDly zp\u016Fsoben\u00E9 r\u016Fzn\u00FDmi pT podm\u00EDnkami taven\u00ED a frakcionace), ale i mezi jednotliv\u00FDmi miner\u00E1ly (rozd\u00EDly zp\u016Fsoben\u00E9 krystalovou strukturou. V\u00FDvoj pom\u011Br\u016F Al/Ga a Si/Ge bude porovn\u00E1n s pom\u011Bry K/Rb, Zr/Hf, Nb/Ta a Y/Ho analyzovan\u00FDch hornin. Bude sestaven model chov\u00E1n\u00ED Ga a Ge v magmatick\u00E9m procesu. Chemick\u00E9 anal\u00FDzy budou provedeny na\u00A0quadrup\u00F3lov\u00E9m ICP-MS spektrometru Agilent 7500ce vybaven\u00E9m laserov\u00FDm abla\u010Dn\u00EDm syst\u00E9mem UP213." . . "Behaviour of geochemical \u201Etwins\u201C Al/Ga and Si/Ge in different types of acid silicate melts"@en . "GAP210/10/1309" . "2010-01-01+01:00"^^ . "Aim of this project is to define contents of Ga and Ge and establish the Al/Ga- and Si/Ge-ratios in different types of natural silicate melts (granitoids) representing partial melting and following evolution (fractional crystallization, mixing, reaction with fluid) in different positions in the Earth crust. The contents of Ga and Ge will be studied in whole-rock samples and in major rock-forming minerals - quartz, feldspars, micas, and amphiboles etc. We expect to find differences in the Al/Ga- and Si/Ge-ratios not only between different rock series (differences in pT-conditions of melting and fractionation), but also among individual mineral species )differences in crystal structure). Evolution of Al/Ga- and Si/Ge-ration will be compared with the K/Rb, Zr/Hf, Nb/Ta and Y/Ho of analysed rocks. Model of Ga and Ge behaviour in magmatic process will be developed. Chemical analyses will be performed\u00A0with quadrupole\u00A0ICP-MS spectrometer\u00A0Agilent 7500ce equipped with laser ablation system UP213."@en . .