Koranga

Photo of this volcano
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  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 7.33°S
  • 146.708°E

  • 1500 m
    4920 ft

  • 253003
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Koranga.

The Global Volcanism Program has no Weekly Reports available for Koranga.

The Global Volcanism Program has no Bulletin Reports available for Koranga.

Koranga Crater, a Pliocene-to-Holocene hydrothermal explosion vent complex (Pigram et al., 1977), is located in the Morobe goldfields in the Owen Stanley Range SW of Huon Gulf. The gold mineralization here prompted one of the world's last great gold rushes, beginning in 1922. Gold mineralization is thought to have been related to Pliocene maar formation and dacitic and andesitic lava dome extrusion. Gas emission and a landslide from Koranga in May 1967 were considered to have had either a non-volcanic (Pigram et al., 1977; Fisher and Branch, 1981) or hydrothermal-eruption origin (Sillitoe et al., 1984).

The Global Volcanism Program is not aware of any Holocene eruptions from Koranga. If this volcano has had large eruptions (VEI >= 4) prior to 10,000 years ago, information might be found on the Koranga page in the LaMEVE (Large Magnitude Explosive Volcanic Eruptions) database, a part of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).

The Global Volcanism Program has no synonyms or subfeatures listed for Koranga.

Koranga Crater, a Pliocene-to-Holocene hydrothermal explosion vent complex, is located in the Morobe goldfields of the Owen Stanley Range at the eastern end of the New Guinea Highlands. The gold mineralization here prompted one of the world's last great gold rushes in 1922. A landslide and possible hydrothermal explosion in May 1967 from a vent at the upper right produced the fresh landslide deposits seen in this photo. The volcanic origin of this event is uncertain.

Photo by Wally Johnson, 1969 (Australia Bureau of Mineral Resources).

The following references have all been used during the compilation of data for this volcano, it is not a comprehensive bibliography. Discussion of another volcano or eruption (sometimes far from the one that is the subject of the manuscript) may produce a citation that is not at all apparent from the title.

Fisher N H, Branch C D, 1981. Late Cainozoic volcanic deposits of the Morobe goldfield. Geol Surv Papua New Guinea Mem, 10: 249-256.

Pigram C J, Johnson R W, Taylor G A M, 1977. Investigation of hot gas emissions from Koranga volcano, Papua New Guinea, in 1967. Aust Bur Min Resour Geol Geophys Jour, 2: 59-62.

Sillitoe R H, Baker E M, Brook W A, 1984. Gold deposits and hydrothermal eruption breccias associated with a maar volcano at Wau, Papua New Guinea. Econ Geol, 79: 638-655.

Volcano Types

Maar
Lava dome(s)

Tectonic Setting

Subduction zone
Continental crust (> 25 km)

Rock Types

Major
Dacite
Andesite / Basaltic Andesite

Population

Within 5 km
Within 10 km
Within 30 km
Within 100 km
12,890
17,417
50,238
393,634

Affiliated Databases

Large Eruptions of Koranga Information about large Quaternary eruptions (VEI >= 4) is cataloged in the Large Magnitude Explosive Volcanic Eruptions (LaMEVE) database of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).
WOVOdat WOVOdat is a database of volcanic unrest; instrumentally and visually recorded changes in seismicity, ground deformation, gas emission, and other parameters from their normal baselines. It is sponsored by the World Organization of Volcano Observatories (WOVO) and presently hosted at the Earth Observatory of Singapore.
EarthChem EarthChem develops and maintains databases, software, and services that support the preservation, discovery, access and analysis of geochemical data, and facilitate their integration with the broad array of other available earth science parameters. EarthChem is operated by a joint team of disciplinary scientists, data scientists, data managers and information technology developers who are part of the NSF-funded data facility Integrated Earth Data Applications (IEDA). IEDA is a collaborative effort of EarthChem and the Marine Geoscience Data System (MGDS).
Smithsonian Collections Search the Smithsonian's NMNH Department of Mineral Sciences collections database. Go to the "Search Rocks and Ores" tab and use the Volcano Name drop-down to find samples.