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The southern end of Candlemas Island consists of an eroded, glacier-covered basaltic stratovolcano cut by steep cliffs on the east. Lava flows along the cliff dip to the west, suggesting that the original summit vent was beyond the eastern shoreline. The northern end of the irregularly shaped, 6-km-long island consists of an andesitic-to-dacitic complex of scoria cones with radiating lava flows. These initially formed a separate island but now consist of a low attached platform that is estimated to be no more than a few hundred years old (LeMasurier and Thomson, 1990). Dark brown clouds mixed with white steam were reported in 1823 and 1911, but it has not been demonstrated which, if any, of the young north flank lava flows formed since the island was discovered in 1775. Geysers and hot pools have been observed on several occasions during the 20th century. Vindication Island, of possible Holocene age, is located 4.5 km west of Candlemas Island.
Summary of Holocene eruption dates and Volcanic Explosivity Indices (VEI).
|Start Date||Stop Date||Eruption Certainty||VEI||Evidence||Activity Area or Unit|
|[ 1953 Dec 31 ± 365 days ]||[ Unknown ]||Uncertain||0||NW flank (Lucifer Hill)|
|1911 Nov 6||Unknown||Confirmed||2||Historical Observations||NW flank (Lucifer Hill)|
|1823||Unknown||Confirmed||2||Historical Observations||NW flank (Lucifer Hill)|
|1250 BCE (?)||Unknown||Confirmed||Ice Core||S Sandwich Is (probably Candlemass)|
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.
|Lichtmess Insel | Candelaria|
|Feature Name||Feature Type||Elevation||Latitude||Longitude|
|Lucifer Hill||Cone||229 m||57° 4' 0" S||26° 42' 0" W|
|Cone||442 m||57° 5' 0" S||26° 43' 0" W|
|The southern end of Candlemas Island (upper right) consists of an eroded, glacier-covered stratovolcano whose lava flows may have originated from a former summit vent located east of the island. The snow-free area at the NW part of the island is Lucifer Hill, a scoria-cone complex that was the source of snow-covered lava flows seen in this image. Geysers and hot pools have been observed on several occasions during the 20th century. Vindication Island (lower left), of possible Holocene age, is located 4.5 km west of Candlemas Island.
ASTER satellite image, 2001 (National Aeronautical and Space Administration, courtesy of ASTER science team).
|The glacier-covered peaks of Mount Andromeda (Ieft) and Mount Perseus (right) rise along the eastern side of Candlemas Island. Young lava fields erupted from Lucifer Hill appear at the far right, beyond a narrow spit dividing greenish Gorgon Pool from Kraken Cove. Medusa Pool lies below the cloud beyond Gorgon Pool. Contemporary accounts indicate modifications to these spits and flats since a 1908 visit to the island, and Lucifer Hill erupted in the 19th century and possibly after the 1908 visit. Vindication Island rises beyond Candlemas.
Photograph by HMS Endurance (courtesy of John Smellie, British Antarctic Survey).
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.
Berninghausen W H, Neumann van Padang M, 1960. Antarctica. Catalog of Active Volcanoes of the World and Solfatara Fields, Rome: IAVCEI, 10: 1-32.
LeMasurier W E, Thomson J W (eds), 1990. Volcanoes of the Antarctic Plate and Southern Oceans. Washington, D C: Amer Geophys Union, 487 p.
Tomblin J F, 1979. The South Sandwich Islands: II. The geology of Candlemas Island. Brit Antarctic Surv Sci Rpt, 92: 1-33.