Ile de l' Est

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  • Country
  • Volcanic Region
  • Primary Volcano Type
  • Last Known Eruption
  • 46.43°S
  • 52.2°E

  • 1090 m
    3575 ft

  • 234030
  • Latitude
  • Longitude

  • Summit
    Elevation

  • Volcano
    Number

The Global Volcanism Program has no activity reports for Ile de l' Est.

The Global Volcanism Program has no Weekly Reports available for Ile de l' Est.

The Global Volcanism Program has no Bulletin Reports available for Ile de l' Est.

Ile de l'Est, the easternmost island in the Crozet archipelago, is a glacially eroded basaltic stratovolcano with scoria cones concentrated on its eastern flank. A metamorphosed gabbroic complex is cut by a dense network of dikes and cone sheets that fed younger volcanic rocks. The 10 x 19 km wide Ile de l'Est is the oldest of the Crozet Islands, but contains five younger oxidized scoria cones, most of which are on the eastern side of the island. The young scoria cones may be Holocene in age (LeMasurier and Thomson, 1990).

The Global Volcanism Program is not aware of any Holocene eruptions from Ile de l' Est. If this volcano has had large eruptions (VEI >= 4) prior to 10,000 years ago, information might be found on the Ile de l' Est 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

East Island
Ile de l'Est, the easternmost island in the Crozet archipelago, is seen in this NASA Space Shuttle image (with north to the top). The glacially eroded basaltic stratovolcano contains about a half dozen young scoria cones of possible Holocene age concentrated on its eastern flank. Cape Itaine forms the small peninsula on the SW side of the island (lower left), and Abondance Bay is at the bottom center.

NASA Space Shuttle image ISS006-E-37992, 2003 (http://eol.jsc.nasa.gov/).

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.

Bellair P, 1964. Recent data on the geology of Isles Crozet. In: Adie R J (ed) {Antarctic Geol, Proc 1st Internatl Symp Antarctic Geol}, Amsterdam: Elsevier, p 3-7.

Gunn B M, Abranson E C, Watkins N D, Nougier J, 1972. Petrology and geochemistry of Iles Crozet: a summary. In: Adie R J (ed) {Antarctic Geol and Geophys}, IUGS Ser-B(1): 825-829.

Lameyre J, Nougier J, 1982. Geology of Ile de l'Est, Crozet archipelago (TAAF). In: Craddock C (ed) {Antarctic Geoscience}, Madison: Univ Wisconsin Press, p 767-770.

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

Stratovolcano
Pyroclastic cone(s)

Tectonic Setting

Rift zone
Oceanic crust (< 15 km)

Rock Types

Major
Basalt / Picro-Basalt
Trachybasalt / Tephrite Basanite

Population

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

Affiliated Databases

Large Eruptions of Ile de l' Est 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.