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Mount Morning

Morning

Shield volcano · Antarctica · 2723m

Mount Morning is seen in this aerial view from the NE. The summit contains an ice-filled 4.1 x 4.9 km caldera. Numerous flank lava domes and scoria cones formed along fissures on Hurricane Ridge across the NE flank to the middle right, and on the Riviera Ridge beyond on the N flank.
Mount Morning is seen in this aerial view from the NE. The summit contains an ice-filled 4.1 x 4.9 km caldera. Numerous flank lava domes and scoria cones formed along fissures on Hurricane Ridge across the NE flank to the middle right, and on the Riviera Ridge beyond on the N flank. · Photo: Photo by U.S. Navy. · Wikimedia Commons
Type
Shield volcano
Country
Antarctica
Region
Antarctic-Scotia Volcanic Regions / McMurdo Volcanic Province
Elevation
2723m
Coordinates
-78.500, 163.530
Last eruption
Unknown
Tectonic setting
Intraplate / Continental crust (> 25 km)
Landform
Shield
Major rock type
Phonolite
Geological summary

Mount Morning is a glaciated, undissected, alkalic shield volcano in the Erebus volcanic province SE of the south end of the Royal Society Range. An elongated 4.9 x 4.1 km caldera lies at the summit, and numerous lava domes and cinder cones formed on fissures on the N, NE, and SE flanks. The latest volcanism associated with growth of the phonolitic central volcano was Potassium-Argon dated at about 1.2 to 1 million years, and late-Pleistocene to zero-age Argon-Argon dates were obtained for some of the volumetrically dominant basanitic fissure vents. More than 50 morphologically youthful vents occur on the flanks.

Eruption history

Detailed timeline

No eruption records available.

External links

⚠ For reference only. Not for emergency response.