DIFFERENT GEOCHEMICAL SIGNATURES DEVELOPED IN BASIC MAGMATIC ROCKS OF MT. KALNIK (NORTH CROATIA)
Journal Title: UNKNOWN - Year 2004, Vol 16, Issue 1
Abstract
Basic magmatic rocks of Mt. Kalnik experienced hydrothermal alteration and low grade metamorphism. In such circumstances the most useful tracers of their magma sources and tectonic settings are REE patterns and other normalized trace element abundance plots. Gabbro, basalt, diabase and two samples of metabasalts were investigated in this preliminary study. Geochemical signature of gabbro points to the mantle source of magma and those of metabasalts indicates continental crust source. According to its features basalt could have been derived from the same magma as gabbro by process of magmatic differentiation. The magma giving diabase arised most probably from mantle wedge enriched by hydrothermal fluids ascending from the subducting slab.
Authors and Affiliations
MAJA VRKLJAN VESNICA GARAŠIĆ
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