Trace elements and garnet formation in a distal skarn zone : a case study of the Rudnik deposit, Central Serbia

• Autorzy: Kostić Bojan , Tančić Pavle , Batoćanin Natalija

Identyfikatory

DOI

10.7306/gq.1752

• Języki publikacji: EN

Abstrakty

EN

The Rudnik Pb-Zn deposit is hosted in skarns and hornfels formed in the late Oligocene by contact metamorphism of limestones, sandstones and shales. Garnets, together with epidote, represent the main non-metallic minerals in the Rudnik skarn. In the distal skarn zone, the garnets are rare and their occurrence is related to the flow path of hydrothermal fluids. To constrain the hydrothermal and physicochemical conditions, in situ elemental SEM-WDS and LA-ICP-MS analyses, and fluid inclusion microthermometric measurements, were made. The Rudnik garnets from the distal skarn zone are predominantly of andradite-grossular composition (Adr_39.3–88.9Grs_2.9–53.9Alm_0.5–10.0), with a small amount of spessartine. Generally, the Fe-rich garnets show a positive Eu anomaly with LREE enrichment and a HREE flat pattern, with homogenization temperatures and salinities of fluid inclusions ranging from 373 to 392°C and from 14.25 to 15.27% NaCl equivalent, respectively. The trace elements and microthermometric properties indicate that the garnets formed at moderately high temperatures, mildly acidic pH levels and increased oxygen fugacity.

Słowa kluczowe

EN

garnet geochemistry; REE; fluid inclusion; conditions; Rudnik skarn deposit

• Wydawca: Państwowy Instytut Geologiczny - Państwowy Instytut Badawczy
• Czasopismo: Geological Quarterly
• Rocznik: 2024
• Tom: Vol. 68, No. 3
• Strony: art. no. 24
• Opis fizyczny: Bibliogr. 43 poz., map., tab., wykr.

Twórcy

autor

Kostić Bojan

• University of Belgrade, FacultyofMiningand Geology, Djušina7,11000Belgrade, Serbia

• https://orcid.org/0000-0002-9879-5547

autor

Tančić Pavle

• University of Belgrade, Institute of Chemistry, Technology and Metallurgy, Department for Catalysis and Chemical Engineeri ng, Njegoševa 12, 1000 Belgrade, Serbia

• https://orcid.org/0000-0002-4024-710X

autor

Batoćanin Natalija

• University of Belgrade, Faculty of Geography, Studentski trg 3, 11000 Belgrade, Serbia

• https://orcid.org/0000-0002-8746-8516

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr POPUL/SP/0154/2024/02 w ramach programu "Społeczna odpowiedzialność nauki II" - moduł: Popularyzacja nauki (2025).