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The Koroglu caldera is a result of the eruption of `Seydiler ignimbrites', which have been emplaced in two sequences known as Lower Seydiler (LS) and Upper Seydiler (US). The Koroglu caldera measures 13 kmx18 km, contains a resurgent dome in the center, and produced low aspect ratio ignimbrites, which have been transported up to 50 km away from the source. The ignimbrites show argillaceous weathering...
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