The Bola volcano, also known as Wangore, is an

andesitic Andesite () is a volcanic rock of intermediate composition. In a general sense, it is the intermediate type between silica-poor basalt and silica-rich rhyolite. It is fine-grained (aphanitic) to porphyritic in texture, and is composed predomina ...

stratovolcano A stratovolcano, also known as a composite volcano, is a typically conical volcano built up by many alternating layers (strata) of hardened lava and tephra. Unlike shield volcanoes, stratovolcanoes are characterized by a steep profile with ...

, located south-west of the Dakataua

caldera A caldera ( ) is a large cauldron-like hollow that forms shortly after the emptying of a magma chamber in a volcanic eruption. An eruption that ejects large volumes of magma over a short period of time can cause significant detriment to the str ...

New Britain New Britain () is the largest island in the Bismarck Archipelago, part of the Islands Region of Papua New Guinea. It is separated from New Guinea by a northwest corner of the Solomon Sea (or with an island hop of Umboi Island, Umboi the Dampie ...

Papua New Guinea Papua New Guinea, officially the Independent State of Papua New Guinea, is an island country in Oceania that comprises the eastern half of the island of New Guinea and offshore islands in Melanesia, a region of the southwestern Pacific Ocean n ...

. It is tall and has a wide summit crater. The most recent lava flow was erupted from the summit crater and flowed to the west. This

viscous Viscosity is a measure of a fluid's rate-dependent resistance to a change in shape or to movement of its neighboring portions relative to one another. For liquids, it corresponds to the informal concept of ''thickness''; for example, syrup h ...

flow is at least 50 m thick, thus leaving an irregularity in the profile of the volcano. The unforested summit crater and weak fumarolic activity suggest that the most recent eruption may have been only a few hundred years ago.

References

Stratovolcanoes of Papua New Guinea Calderas of Papua New Guinea Volcanoes of New Britain Dormant volcanoes Mountains of Papua New Guinea {{PapuaNewGuinea-geo-stub

See also

References