Depositional record of a Pliocene nested multivent maar complex at Fekete-hegy, Pannonian Basin, western Hungary.

The Mio/Pliocene Bakony-Balaton Highland Volcanic Field includes more than 100 alkaline basaltic volcanoes. The maar complex Fekete-hegy is volumetrically one of the largest volcanic complexes of the BBHVF. Fekete-hegy forms a lava-capped butte in the central part of the volcanic field with basaltic lava flows overlying pyroclastic units. At least 3 vents have been identified at Fekete-hegy. Every single vent started initially with phreatomagmatic activity, interpreted on the basis of the presence of chilled, angular, blocky, slightly to moderately vesicular sideromelane glass shards, accidental lithic clasts and bedding characteristics of the pyroclastic units. Fekete-hegy is considered to be a large nested phreatomagmatic volcanic vent system,

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