Tags: Anguilla, diatreme, Field, fossil, Foulden, insects, lake, maar, Miocene, New Zealand, pyroclastic, Sediment, volcanic, Waipiata
Tags: diatreme, fissure, Hopi Buttes, maar, monogenetic, root zone, shallow plumbing, volcanism
Tags: Alpine dike swarm, diatreme, Lake Wanaka, lamprophyre
Tags: Basaltic, Conduit, diatreme, Dike, Feeder, Hopi Buttes, Monogenetic volcano
atom, dcmes-xml, json, omeka-xml, rss2