Victory is a volcano on New Guinea island, Papua New Guinea. It is situated on Cape Nelson, 30 km from Tufi in an area with no
Wadati-Benioff zone. It is one of four large
stratovolcanos in Northern New Guinea island, the others being
Hydrographers Range
The Hydrographers Range is a forested mountain range in the Oro Province of southeastern Papua New Guinea. It extends from the eastern margin of Mount Lamington in the west to the Pacific Ocean coast in the east.
This coastal range represents a d ...
,
Trafalgar and
Lamington
A lamington is an Australian cake made from squares of butter cake or sponge cake coated in an outer layer of chocolate sauce and rolled in desiccated coconut. The thin mixture is absorbed into the outside of the sponge cake and left to set, gi ...
.
Morphology
Victory is dominantly Andesitic in origin, but also has traces of
Basalt
Basalt (; ) is an aphanitic (fine-grained) extrusive igneous rock formed from the rapid cooling of low-viscosity lava rich in magnesium and iron (mafic lava) exposed at or very near the surface of a rocky planet or moon. More than 90 ...
and
Dacite
Dacite () is a volcanic rock formed by rapid solidification of lava that is high in silica and low in alkali metal oxides. It has a fine-grained (aphanitic) to porphyritic texture and is intermediate in composition between andesite and rhyolite ...
, the lavas erupted have an unusually high level of
Chromium and
Nickel
Nickel is a chemical element with symbol Ni and atomic number 28. It is a silvery-white lustrous metal with a slight golden tinge. Nickel is a hard and ductile transition metal. Pure nickel is chemically reactive but large pieces are slow ...
. The volcano is densely forested in all but the summit crater. On the sides of the volcano (near the summit) are four
lava domes, two on the SW flank and two on the NE flank. The summit crater is breached to the SE and was probably created by a
landslide. The summit now contains a small
crater lake
Crater Lake ( Klamath: ''Giiwas'') is a volcanic crater lake in south-central Oregon in the western United States. It is the main feature of Crater Lake National Park and is famous for its deep blue color and water clarity. The lake partly fill ...
where weak thermal activity continues.
Eruptions
A small eruption may have occurred in 1810 (give or take 10 years), but this event is uncertain. The only known eruption from Victory was a long-term eruption that lasted from the late 19th century to the mid 20th century.
1890-1935 ± 5 years Eruption
An eruption from Victory began in around 1890. The eruption extruded a Lava Dome. The eruption produced deadly
Pyroclastic flows
A pyroclastic flow (also known as a pyroclastic density current or a pyroclastic cloud) is a fast-moving current of hot gas and volcanic matter (collectively known as tephra) that flows along the ground away from a volcano at average speeds of b ...
that probably resulted in the deaths reported by local residents in the 1890s. The constant glow from Victory's long-term eruption (which could have ended as late as 1940) provided a beacon for passing ships. The stop date for the eruption is unknown but it ended between 1930 and 1940.
See also
*
Mount Victory (Papua New Guinea)
Mount Victory is an active volcano on the north east coast of Oro Province, Papua New Guinea with a height of . It is bounded by the Ajova River.
The mountain is a major andesite volcano, with the magma known for its high levels of Nickel and Ch ...
References
*
Volcano Live* Volcanoes of The World, 3rd ed. ''2011, Siebert, Simkin, Kimberly''
External links
Photo of Victory Volcano on Panoramio.com
{{coord, 9, 12, S, 149, 04, E, region:PG_source:kolossus-ruwiki, display=title
Stratovolcanoes of Papua New Guinea
Active volcanoes