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Pregled bibliografske jedinice broj: 518034

X-ray study of potassium feldspars from different granitoid types and gneisses of Papuk Mt. (Slavonia, Croatia)

Horvat, Marija; Tibljaš, Darko; Buda, György; Lovas, György
X-ray study of potassium feldspars from different granitoid types and gneisses of Papuk Mt. (Slavonia, Croatia) // Geologia Croatica : journal of the Croatian Geological Survey and the Croatian Geological Society, 64 (2011), 2; 153-162 doi:10.4154/gc.2011.13 (međunarodna recenzija, članak, znanstveni)

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Naslov
X-ray study of potassium feldspars from different granitoid types and gneisses of Papuk Mt. (Slavonia, Croatia)

Autori
Horvat, Marija ; Tibljaš, Darko ; Buda, György ; Lovas, György

Izvornik
Geologia Croatica : journal of the Croatian Geological Survey and the Croatian Geological Society (1330-030X) 64 (2011), 2; 153-162

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
X-ray powder diffraction ; potassium feldspars ; triclinicity ; structural state ; ordering index ; granitoids and gnesses ; Papuk Mt. ; Croatia

Sažetak
Potassium feldspars from different granitoids and gneisses of Papuk Mt. (Slavonia, Croatia) have been investigated by X-ray powder diffraction. Diffraction patterns classically observed as well as patterns calculated by Rietveld refinement were compared and discussed. Triclinicity was calculated according to GOLDSCHMIDT & LAVES (1954) while the structural state of the feldspars was determined using the methods of KROLL & RIBBE (1983) and GODINHO & JALECO (1973). Results showed that the type of potassium feldspar depend on the investigated host-rock, indicating variation in the structural state from orthoclase, intermediate microcline to highly ordered microcline. Potassium feldspar megacrysts in biotite-granodiorites and monzogranites are intermediate microcline or orthoclase, while two-mica monzogranites contain low microcline. Gneisses contain low microcline and orthoclase in Brzaja Creek and low microcline in Djedovica Quarry. Classically observed and digital diffraction patterns calculated by the Rietveld refinement method produced comparable results and provided a very good correlation of the results obtained by different methods. High triclinicity values of feldspars from investigated granitoid and gneiss samples from Papuk Mt. (Slavonia, Croatia) are in accordance with a high Al content in the T1o site and their fully ordered state indicates a slow(er) cooling-rate. Low triclinicity values, an Al content in T1o site around 0.60 and ordering index smaller than 0.80 can be interpreted as a result of relatively fast(er) cooling which allowed lower ordering of the potassium feldspar.

Izvorni jezik
Engleski

Znanstvena područja
Geologija



POVEZANOST RADA

Projekti:
119-1191155-1156 - Metamorfni i magmatski događaji u podlozi Panonskog bazena i Dinaridima (Balen, Dražen, MZOS ) ( CroRIS)
181-1811096-1093 - Osnovna geološka karta Republike Hrvatske 1:50.000 (Belak, Mirko, MZOS ) ( CroRIS)

Ustanove:
Prirodoslovno-matematički fakultet, Zagreb

Profili:

Avatar Url Darko Tibljaš (autor)

Avatar Url Marija Horvat (autor)

Poveznice na cjeloviti tekst rada:

doi www.geologia-croatica.hr

Citiraj ovu publikaciju:

Horvat, Marija; Tibljaš, Darko; Buda, György; Lovas, György
X-ray study of potassium feldspars from different granitoid types and gneisses of Papuk Mt. (Slavonia, Croatia) // Geologia Croatica : journal of the Croatian Geological Survey and the Croatian Geological Society, 64 (2011), 2; 153-162 doi:10.4154/gc.2011.13 (međunarodna recenzija, članak, znanstveni)
Horvat, M., Tibljaš, D., Buda, G. & Lovas, G. (2011) X-ray study of potassium feldspars from different granitoid types and gneisses of Papuk Mt. (Slavonia, Croatia). Geologia Croatica : journal of the Croatian Geological Survey and the Croatian Geological Society, 64 (2), 153-162 doi:10.4154/gc.2011.13.
@article{article, author = {Horvat, Marija and Tiblja\v{s}, Darko and Buda, Gy\"{o}rgy and Lovas, Gy\"{o}rgy}, year = {2011}, pages = {153-162}, DOI = {10.4154/gc.2011.13}, keywords = {X-ray powder diffraction, potassium feldspars, triclinicity, structural state, ordering index, granitoids and gnesses, Papuk Mt., Croatia}, journal = {Geologia Croatica : journal of the Croatian Geological Survey and the Croatian Geological Society}, doi = {10.4154/gc.2011.13}, volume = {64}, number = {2}, issn = {1330-030X}, title = {X-ray study of potassium feldspars from different granitoid types and gneisses of Papuk Mt. (Slavonia, Croatia)}, keyword = {X-ray powder diffraction, potassium feldspars, triclinicity, structural state, ordering index, granitoids and gnesses, Papuk Mt., Croatia} }
@article{article, author = {Horvat, Marija and Tiblja\v{s}, Darko and Buda, Gy\"{o}rgy and Lovas, Gy\"{o}rgy}, year = {2011}, pages = {153-162}, DOI = {10.4154/gc.2011.13}, keywords = {X-ray powder diffraction, potassium feldspars, triclinicity, structural state, ordering index, granitoids and gnesses, Papuk Mt., Croatia}, journal = {Geologia Croatica : journal of the Croatian Geological Survey and the Croatian Geological Society}, doi = {10.4154/gc.2011.13}, volume = {64}, number = {2}, issn = {1330-030X}, title = {X-ray study of potassium feldspars from different granitoid types and gneisses of Papuk Mt. (Slavonia, Croatia)}, keyword = {X-ray powder diffraction, potassium feldspars, triclinicity, structural state, ordering index, granitoids and gnesses, Papuk Mt., Croatia} }

Časopis indeksira:


  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus

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  • Geobase
  • GeoRef

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