نتایج جستجو برای: metallogeny
تعداد نتایج: 149 فیلتر نتایج به سال:
M. Pavlun — doctor of geological sciences, professor, dean the faculty Ivan Franko National University Lviv, academician Academy Sciences Higher School Ukraine, full member Ukrainian Mineralogical Society, Shevchenko Scientific Society. Pavlun’s systematic scientific research on metallogeny and thermobarogeochemistry (TBGC) molybdenum-tungsten gold ore formations served as basis for preparation...
Crystallization coupled with gravity removal of depleted interstitial melt has long been recognized as a mechanism of magma differentiation. Similarly, heat released by synplutonic basaltic magma intrusions has long been recognized as capable of driving convection in granite chambers. Direct evidence of these processes has seldom been described in granites. In the Tavares pluton, we mapped a nu...
The late Mesozoic destruction of the eastern North China Craton (NCC) resulted from intense crust-mantle interaction, culminating in formation world-class gold deposits Jiaodong Peninsula at ca. 120 Ma. We present zircon U-Pb geochronological data, Hf isotopic compositions, whole-rock major and trace element, Sr-Nd-Pb compositions for two suites granitoids: one (the Linglong suite) that hosts s...
چکیده ندارد.
Abstract Mineral inclusions within native gold are features of lode occurrences that preserved in detrital particles. Inclusion assemblages populations particles placers from specific localities revealed through inspection polished sections, and assimilation robust data sets permits reconstruction the source mineralogy. differ considerably according to deposit type, various approaches have been...
Gold in the Ariab district (Red Sea Hills, Sudan) is mined gossans developed over volcanogenic massive sulphide (VHMS) deposits formed context of a Tonian ensimatic arc Haiya terrane, Neoproterozoic Arabo-Nubian Shield. All primary gold occurrences belt, whatever their style (VHMS-, quartz lode- or shear-zone-hosted), appear, however, to have been syn-to late-kinematic, i.e., final Pan-African ...
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