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Упит dcterms_subject_txt:skarn

4 items

  • Anisotropic grossular–andradite garnets: Evidence of two stage skarn evolution from Rudnik, Central Serbia

    Bojan Kostić, Danica Srećković-Batoćanin, Petyo Filipov, Pavle Tančić, Kristijan Sokol (2021)
    This paper presents LA-ICP-MS data for garnets from the Rudnik skarn deposit (Serbia), which range from Grs45–58Adr40–52Alm2–3 in the core and Adr70–97Grs2–29Sps1 in the rim displaying anisotropy and zoning. In spite of wide compositional variations the garnets near the end-member of andradite (Adr > 90) are generally isotropic. Fe-rich rims exhibit LREE depletion and flat HREE pattern with weak negative Eu anomaly, including higher As and W contents. On the other side, the Fe-poorer core shows flat REE pattern ...
    grandite, garnets, skarn, Rudnik
    ... the volcanic event in the late Oligocene 23.9 Ma. Keywords: grandite, garnets, skarn, Rudnik. Introduction Study of the composition of common skarn minerals and the possibility to be helpful in prospecting of skarn deposits has a brief history. One of the earliest attempts was made by Nakano ...
    ... stage skarn evolution from Rudnik, Central Serbia Bojan Kostić, Danica Srećković-Batoćanin, Petyo Filipov, Pavle Tančić, Kristijan Sokol Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Anisotropic grossular–andradite garnets: Evidence of two stage skarn evolution ...
    ... commonest in skarn deposits, several studies concerning the composition of REE in garnets are available up to date (e.g. Jamtveit & Hervig 1994; Nicolescu et al. 1998; Smith et al. 2004; Gaspar et al. 2008; Zhai et al. 2014; Park et al. 2017; Xiao et al. 2018). Zonation patterns of skarn garnets as ...

  • Kontaktni metamorfizam gornjokrednih sedimentnih stena Rudnika

    Kostić N. Bojan (2021)
    Kontaktni metamorfizam gornjokrednih sedimentnih stena na planini Rudnik ispitivan je na uzorcima iz pet bušotina. Definisano je šest varijeteta krednih stena (protolita) koji čine dve litološke jedinice izgrađene od klastičnog, karbonatnog i klastično-karbonatnog materijala. Vulkanskom aktivnosti na Rudniku formirana su vulkanska tela koja se utiskuju duž slojevitosti sedimentnih stena, a neka ih presecaju u vidu dajkova. Starost ovog vulkanskog događaja određena je na 23.9 miliona godina. Ovaj miocenski vulkanizam doveo je do kontaktno metamorfnih promena sedimentnih stena i obrazovanja skarnova ...
    Rudnik, kontaktni metamorfizam, sedimentne stene, hornfels, skarn, granati, vezuvijan
    ... 267 267 267 267 269 269 270 270 270 270 Granat Granat Granat Granat Granat Granat Granat Granat Granat Granat Skarn Skarn Skarn Skarn Skarn Skarn Skarn Skarn Skarn Skarn SiO2 37.80 37.26 36.07 35.41 36.94 37.60 36.17 35.88 35.66 36.27 TiO2 1.34 1.28 0.49 0.27 0.47 - - - 0.51 - Al2O3 18 ...
    ... 276 276 276 276 293 293 293 293 293 293 Granat Granat Granat Granat Granat Granat Granat Granat Granat Granat Skarn Skarn Skarn Skarn Skarn Skarn Skarn Skarn Skarn Skarn SiO2 35.67 36.57 36.64 38.21 34.62 36.47 35.94 36.57 35.86 34.36 TiO2 1.05 0.27 - - 1.28 - - 0.84 - - Al2O3 7.50 9.49 ...
    ... strani) 296 296 296 298 298 311 317 317 317 475 Granat Granat Granat Granat Granat Granat Granat Granat Granat Granat Skarn Skarn Skarn Skarn Skarn Skarn Skarn Skarn Skarn Metaklastit SiO2 36.67 36.72 33.79 37.24 38.43 37.85 37.39 37.02 37.82 38.53 TiO2 - - - 0.42 - 0.59 0.43 - 0.22 - Al2O3 ...

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

    Bojan Kostić, Pavle Tančić, Natalija Batoćanin (2024)
    geohemija granata, retke zemlje, fluidne inkluzije, skarnovsko ležište Rudnik

  • Punctuated, episodic magmatism and mineralization of the Rogozna skarn-hosted Au-Zn-Pb-Cu deposits revealed through high-precision U-Pb zircon geochronology

    Sean P. Gaynor, Milorad D. Antić, Vladica Cvetković, Kristina Šarić, Urs Schaltegger (2023)
    The subvolcanic regions of magmatic centers are commonly associated with alteration, mineralization, and economic ore deposits, however the duration and frequency of mineralizing pulses within the overall lifespan of these centers can be poorly defined. Therefore, models for the formation of mineral systems require more highprecision geochronology data to refine their evolutionary models. Rogozna Mountain and its eponymous magmatic complex, located in SW Serbia, hosts multiple base metal deposits associated with variable rock types and structural expressions and serves as a natural laboratory to ...
    Skarnovska mineralizacija, Magmatsko-hidrothermalni sistemi, Subvulcanske intruzije, geohronologija na cirkonima, CA-ID-TIMS