"1211-8796" . "Arsenic supergene mineralisationsand arsenic behaviour in waste dumps of base-metal deposit Dlouh\u00E1 Ves near Havl\u00ED\u010Dk\u016Fv Brod (\u010Ceskomoravsk\u00E1 vrchovina Highlands)"@en . "Arsenic supergene mineralisationsand arsenic behaviour in waste dumps of base-metal deposit Dlouh\u00E1 Ves near Havl\u00ED\u010Dk\u016Fv Brod (\u010Ceskomoravsk\u00E1 vrchovina Highlands)"@en . . . "99" . "26"^^ . . . "Arsenov\u00E1 mineralizace, zastoupen\u00E1 prim\u00E1rn\u00ED asociac\u00ED arsenopyrit-pyrit je typick\u00E1 po polymetalick\u00E9 lo\u017Eiska na \u010Ceskomoravsk\u00E9 vrchovin\u011B. Mineralizace odval\u016F historick\u00FDch dol\u016F s v Dlouh\u00E9 Vsi u Havl\u00ED\u010Dkova Brodu byly zkoum\u00E1ny ve dvou profilech pomoc\u00ED rentgenov\u00E9 pr\u00E1\u0161kov\u00E9 difrakce, elektronovou mikrosondou, WR anal\u00FDzami, lou\u017E\u00EDc\u00EDmi experimenty a M\u00F6ssbauerovou spektroskopi\u00ED. Odvalov\u00FD materi\u00E1l m\u011Bl p\u016Fvodn\u011B vysok\u00FD obsah sulfid\u016F a n\u00EDzk\u00FD pod\u00EDl karbon\u00E1t\u016F. Prim\u00E1rn\u00EDm zdrojem arsenu byl arsenopyrit, kter\u00FD podl\u00E9h\u00E1 oxidaci. Kde arsenopyrit p\u0159evl\u00E1d\u00E1, je pota\u017Een scoroditeme a Fe f\u00E1zemi, kter\u00E9 omezuj\u00ED jeho dal\u0161\u00ED oxidaci. Hlavn\u00EDm supergenn\u00ED As-f\u00E1z\u00ED v profilu (a) byl goethit a Fe3+-oxohydroxidy (AISA), v\u010Detn\u011B r\u016Fzn\u00FDch nestechiometrick\u00FDch f\u00E1z\u00ED absorbuj\u00EDc\u00EDch As, a miner\u00E1ly skupiny jarositu. Na profilu (b) byly zji\u0161t\u011Bny, miner\u00E1ly jarosit-beudantitov\u00E9 skupiny, skorodit a ka\u0148kit. Procesy zv\u011Btr\u00E1v\u00E1n\u00ED v odvalech jsou tak\u00E9 ovlivn\u011Bny pom\u011Brem pyrit/arsenopyrit, kde vysok\u00FD obsah pyritu vede k tvorb\u011B miner\u00E1l\u016F jarositov\u00E9 skupiny za podm\u00EDnek n\u00EDzk\u00E9ho pH. Koncentrace As uvol\u0148ovan\u00E9ho b\u011Bhem experiment\u016F vyluhov\u00E1n\u00ED byly obecn\u011B n\u00EDzk\u00E9."@cs . "4166" . "Arzenov\u00E1 supergenn\u00ED mineralizace a chov\u00E1n\u00ED arzenu na odvalech polymetalick\u00E9ho lo\u017Eiska Dlouh\u00E1 Ves u Havl\u00ED\u010Dkova Brodu na \u010Ceskomoravsk\u00E9 vrchovin\u011B"@cs . "1" . . . "Arzenov\u00E1 supergenn\u00ED mineralizace a chov\u00E1n\u00ED arzenu na odvalech polymetalick\u00E9ho lo\u017Eiska Dlouh\u00E1 Ves u Havl\u00ED\u010Dkova Brodu na \u010Ceskomoravsk\u00E9 vrchovin\u011B" . . "RIV/00094862:_____/14:#0001668" . "Arsenov\u00E1 mineralizace, zastoupen\u00E1 prim\u00E1rn\u00ED asociac\u00ED arsenopyrit-pyrit je typick\u00E1 po polymetalick\u00E9 lo\u017Eiska na \u010Ceskomoravsk\u00E9 vrchovin\u011B. Mineralizace odval\u016F historick\u00FDch dol\u016F s v Dlouh\u00E9 Vsi u Havl\u00ED\u010Dkova Brodu byly zkoum\u00E1ny ve dvou profilech pomoc\u00ED rentgenov\u00E9 pr\u00E1\u0161kov\u00E9 difrakce, elektronovou mikrosondou, WR anal\u00FDzami, lou\u017E\u00EDc\u00EDmi experimenty a M\u00F6ssbauerovou spektroskopi\u00ED. Odvalov\u00FD materi\u00E1l m\u011Bl p\u016Fvodn\u011B vysok\u00FD obsah sulfid\u016F a n\u00EDzk\u00FD pod\u00EDl karbon\u00E1t\u016F. Prim\u00E1rn\u00EDm zdrojem arsenu byl arsenopyrit, kter\u00FD podl\u00E9h\u00E1 oxidaci. Kde arsenopyrit p\u0159evl\u00E1d\u00E1, je pota\u017Een scoroditeme a Fe f\u00E1zemi, kter\u00E9 omezuj\u00ED jeho dal\u0161\u00ED oxidaci. Hlavn\u00EDm supergenn\u00ED As-f\u00E1z\u00ED v profilu (a) byl goethit a Fe3+-oxohydroxidy (AISA), v\u010Detn\u011B r\u016Fzn\u00FDch nestechiometrick\u00FDch f\u00E1z\u00ED absorbuj\u00EDc\u00EDch As, a miner\u00E1ly skupiny jarositu. Na profilu (b) byly zji\u0161t\u011Bny, miner\u00E1ly jarosit-beudantitov\u00E9 skupiny, skorodit a ka\u0148kit. Procesy zv\u011Btr\u00E1v\u00E1n\u00ED v odvalech jsou tak\u00E9 ovlivn\u011Bny pom\u011Brem pyrit/arsenopyrit, kde vysok\u00FD obsah pyritu vede k tvorb\u011B miner\u00E1l\u016F jarositov\u00E9 skupiny za podm\u00EDnek n\u00EDzk\u00E9ho pH. Koncentrace As uvol\u0148ovan\u00E9ho b\u011Bhem experiment\u016F vyluhov\u00E1n\u00ED byly obecn\u011B n\u00EDzk\u00E9." . "Acta Musei Moraviae, Scientiae geologicae" . . "1"^^ . "waste dumps; arsenic; arsenopyrite; jarosite; scorodite; arsenic mobilisation; weathering; Moldanubian zone"@en . . . . "V\u00ED\u0161kov\u00E1, Eva" . "[DF6F10B4A7BD]" . "Arsenic-bearing mineralisation, represented by primary arsenopyrite-pyrite assemblage is typical for base metal deposit at \u010Ceskomoravsk\u00E1 vrchovina Highlands. Waste rock piles from historical mines located at Dlouh\u00E1 Ves near Havl\u00ED\u010Dk\u016Fv Brod have been investigated in two profiles using powder X-ray diffraction, electron microprobe analysis, bulk composition analysis and M\u00F6ssbauer spectroscopy. The dumps have initial high sulfide and low carbonate content. The primary source of the arsenic was arsenopyrite, which was significantly oxidized. Where arsenopyrite predominates, it is coated by scorodite and other Fe\u2013As phases, which limit their further oxidation. The major supergenne As-phases in the profile (a) studied at Dlouh\u00E1 Ves are goethite and Fe3+-oxohydroxides with As portion, including a variety of nonstoichiometric phases adsorbing As, and minerals of the jarosite group. At profile (b), minerals of the jarosite\u2013beudantite group, scorodite and ka\u0148kite were found. Processes weathering in the piles are also affected by the pyrite/arsenopyrite ratio, where high pyrite content increases the S/As ratio and results in the formation of jarosite group minerals and low pH conditions. Arsenic concentrations released during the leaching experiments were generally low."@en . "I" . . "1"^^ . "Arzenov\u00E1 supergenn\u00ED mineralizace a chov\u00E1n\u00ED arzenu na odvalech polymetalick\u00E9ho lo\u017Eiska Dlouh\u00E1 Ves u Havl\u00ED\u010Dkova Brodu na \u010Ceskomoravsk\u00E9 vrchovin\u011B"@cs . "CZ - \u010Cesk\u00E1 republika" . . . . . . . "RIV/00094862:_____/14:#0001668!RIV15-MK0-00094862" . . "Arzenov\u00E1 supergenn\u00ED mineralizace a chov\u00E1n\u00ED arzenu na odvalech polymetalick\u00E9ho lo\u017Eiska Dlouh\u00E1 Ves u Havl\u00ED\u010Dkova Brodu na \u010Ceskomoravsk\u00E9 vrchovin\u011B" .