Hydrothermal Sphalerites from Ore Deposits of Baia Mare Area
| Autor: | Andreea Elena Maftei, Gheorghe Damian, Floarea Damian, Andrei Ionuţ Apopei, Andrei Buzatu |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
hydrothermal
Cadmium Baia Mare sphalerite ore deposits trace elements Mineral Geochemistry chemistry.chemical_element Geology Zinc Manganese Electron microprobe engineering.material Mineralogy Geotechnical Engineering and Engineering Geology Sphalerite chemistry engineering Fugacity Pyrrhotite QE351-399.2 |
| Zdroj: | Minerals; Volume 11; Issue 12; Pages: 1323 Minerals, Vol 11, Iss 1323, p 1323 (2021) |
| ISSN: | 2075-163X |
| Popis: | Sphalerite is an abundant mineral in the hydrothermal deposits from the Baia Mare and Oaș areas (northwestern Romania). Sphalerite samples were analyzed with an electron probe microanalyzer and Raman spectroscopy. The obtained results indicated different amounts of Fe in the various deposits from the Baia Mare and Oaș areas. The sphalerites from Baia Sprie, Cavnic, Iba, Turț Penigher, and Breiner have a low Fe wt.% content. High Fe wt.% contents are at Herja and partly at Ghezuri and Nistru (copper stage) where sphalerite is associated with pyrrhotite. The correlation between iron and zinc from sphalerites is strongly negative. The negative correlation shows that iron is the main element that replaces zinc in the sphalerite structure. The manganese content of sphalerites in the Baia Mare and Oaș area is up to 0.84 wt.%. The cadmium content is quite uniform in the Baia Mare and Oaș area with contents ranging from 0.01 to 0.72 wt.%. The Fe content of sphalerites is an important indicator of the physico-chemical conditions of deposit formation because it is a function of temperature, pressure, and sulfur fugacity. |
| Databáze: | OpenAIRE |
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