Detailed Information on Publication Record
2014
Mineral assemblages, comositional variation, and crystal structure of feruvitic tourmaline from a contaminated anatectic pegmatite at Mirošov near Strážek, Moldanubian Zone, Czech Republic
GADAS, Petr, Milan NOVÁK, Jan CEMPÍREK, Jan FILIP, Michaela VAŠINOVÁ GALIOVÁ et. al.Basic information
Original name
Mineral assemblages, comositional variation, and crystal structure of feruvitic tourmaline from a contaminated anatectic pegmatite at Mirošov near Strážek, Moldanubian Zone, Czech Republic
Name in Czech
Minerální asociace, změny ve složení a krystalová struktura feruvitického turmalínu z kontaminovaného pegmatitu z Mirošova u Strážku, moldanubikum, Česká republika
Authors
GADAS, Petr (203 Czech Republic, guarantor, belonging to the institution), Milan NOVÁK (203 Czech Republic, belonging to the institution), Jan CEMPÍREK (203 Czech Republic), Jan FILIP (203 Czech Republic), Michaela VAŠINOVÁ GALIOVÁ (203 Czech Republic, belonging to the institution), Lee GROAT (124 Canada) and Dalibor VŠIANSKÝ (203 Czech Republic, belonging to the institution)
Edition
Canadian Mineralogist, Mineralogical Association of Canada. 2014, 0008-4476
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10500 1.5. Earth and related environmental sciences
Country of publisher
Canada
Confidentiality degree
není předmětem státního či obchodního tajemství
Impact factor
Impact factor: 1.181
RIV identification code
RIV/00216224:14310/14:00074471
Organization unit
Faculty of Science
UT WoS
000339701800010
Keywords (in Czech)
feruvit; skoryl; EMPA; LA-ICP-MS; Mossbauerova spektroskopie; prášková a single crystal RTG; granitický pegmatit; kontaminace; moldanubikum, Česká republika
Keywords in English
feruvite; schorl; EMPA; LA-ICP-MS; Mossbauer spectroscopy; powder and single crystal XRD; granitic pegmatite; contamination; Moldanubian Zone; Czech Republic
Tags
Tags
International impact, Reviewed
Změněno: 28/4/2015 09:54, Ing. Andrea Mikešková
Abstract
V originále
Amphibole-bearing, simply zoned, anatectic pegmatite, up to 20 cm thick, cuts calc-silicate rocks at Mirogov, near Strazek, in the Moldanubian Zone of the Czech Republic. Common amphibole (K-rich magnesio-hornblende to ferro-hastingsite), plagioclase An(30-42) and titanite, along with accessory feruvitic tourmaline-Ca-rich schorl to Na-rich feruvite-are indicators of Ca and Fe-contamination from the host rock. Interstitial tourmaline from the outer unit (TU1) and tourmaline from graphic intergrowths with quartz in more evolved parts of the pegmatite (TU2) have similar chemical compositions (EMPA, LA-ICP-MS) with Ca = 0.37-0.58 apfu, Al = 4.77-5.77 apfu; TU1 has higher Mg/(Mg + Fe-tot) = 0.52-0.41 compared to TU2 (0.39-0.15). TU1 is enriched in Ti, V, Cr, Sr, and TU2 in Li and Zn, respectively. Late microscopic veinlets of Na,Al,Mg-enriched tourmaline (TU3)-Ca-rich dravite/schorl-replace both TU1 and TU2. A combination of EMPA, single crystal XRD data, and bond-valence optimization applied to the TU2 data yielded the formula (x)(Ca-0 Na-494(0.451)square(0.055)) (Y)(Mg-0 Al-422(0) 365Fe1.1432+Fe0.9523+Mn0 (029) Ti0.084Zn0.005) (Z)(Al5.106Fe0 3773+Mg0.518) (T)(Si5.879Al0.121O18) (BO3)(3) [(OH)(2.656)O1.286F0.058], which represents disordered Na,Fe3+-rich feruvite (to "oxy-feruvite"). Contaminated pegmatite from Mirogov and its Ca-rich tourmalines are similar to other simple pegmatites from the Moldanubian Zone which have been contaminated by Ca,Fe-rich host rocks. The chemical compositions of Ca-rich schorl to Na-rich feruvite from various geological environments are similar, showing only minor dominance of Ca over Na.
Links
| CZ.1.05/1.1.00/02.0068, interní kód MU |
| ||
| GAP210/10/0743, research and development project |
|