Andrus

Photo of this volcano
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  • Antarctica
  • Antarctica
  • Shield(s)
  • Unknown - Uncertain Evidence
  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 75.8°S
  • 132.33°W

  • 2978 m
    9768 ft

  • 390023
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Andrus.

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

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

Three coalescing trachytic shield volcanoes with a combined volume of 252 cu km formed during the Miocene along a north-south line in the Ames Range of western Marie Byrd Land. The youngest and best exposed of the three is Mount Andrus, the southernmost volcano, where late-stage volcanic activity resumed during the late-Pleistocene or Holocene (Gonzalez-Ferran and Gonzalez-Bonorino 1972, LeMasurier and Thomson 1990). A distinct 4.5-km-wide caldera truncates the summit of Mount Andrus. Weak fumarolic activity was observed in 1977 at Mount Kauffman, the northernmost volcano, which also has a morphologically distinct 3-km-wide summit caldera.

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

This compilation of synonyms and subsidiary features may not be comprehensive. Features are organized into four major categories: Cones, Craters, Domes, and Thermal Features. Synonyms of features appear indented below the primary name. In some cases additional feature type, elevation, or location details are provided.


Synonyms

Ames Range

Cones

Feature Name Feature Type Elevation Latitude Longitude
Kauffman Volcano Shield volcano 2364 m 75° 37' 0" S 132° 25' 0" W
Kosciusko Shield volcano 2909 m 75° 44' 0" S 132° 11' 0" W
A geologist examines trachytic lava flows west of the caldera of Mount Andrus. This volcano is the youngest and best exposed of three N-S-trending volcanoes in the Ames Range of western Marie Byrd Land. A distinct 4.5-km-wide caldera truncates the summit of Mount Andrus. Weak fumarolic activity was observed in 1977 at Mount Kauffman, the northernmost volcano of the Ames Range.

Photo by Oscar González-Ferrán (University of Chile).

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.

Dort W, 1972. Late Cenozoic volcanism in Antarctica. In: Adie R J (ed) {Antarctic Geol and Geophys}, IUGS Ser-B(1): 645-652.

Gonzalez-Ferran O, Gonzalez-Bonorino F, 1972. The volcanic ranges of Marie Byrd land between long 100° and 140° W. In: Adie R J (ed) {Antarctic Geol and Geophys}, IUGS Ser-B(1): 261-275.

LeMasurier W E, Thomson J W (eds), 1990. Volcanoes of the Antarctic Plate and Southern Oceans. Washington, D C: Amer Geophys Union, 487 p.

Volcano Types

Shield(s)
Caldera(s)
Pyroclastic cone(s)

Tectonic Setting

Intraplate
Continental crust (> 25 km)

Rock Types

Major
Trachyte / Trachyandesite
Rhyolite
Trachyandesite / Basaltic trachy-andesite

Population

Within 5 km
Within 10 km
Within 30 km
Within 100 km
0
0
0
0

Affiliated Databases

Large Eruptions of Andrus 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.