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Volcanic Material

Volcanic Material
Photo Information
Copyright: Murray Lines (mlines) Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 556 W: 26 N: 668] (3116)
Genre: Landscapes
Medium: Color
Date Taken: 2008-04-04
Categories: Seascape
Camera: Sony Cybershot
Exposure: f/4.5, 1/200 seconds
More Photo Info: [view]
Photo Version: Original Version
Date Submitted: 2008-05-27 18:47
Viewed: 4878
Points: 6
[Note Guidelines] Photographer's Note
The whole of Milos Island was created by exposive volcanic activity. Here the various tuffs and volcanic fragments which flew out from the erupting volcano are clearly evident in the soil profile. The large rocks are half a metre across, lucky not falling onto visitors today.

Pyroclastic: fragmented (clastic) rock material formed by a volcanic explosion or ejection from a volcanic vent.

Pyroclastic Flow: Lateral flowage of a turbulent mixture of hot gases and unsorted pyroclastic material (volcanic fragments, crystals, ash, pumice, and glass shards) that can move at high speed (50 to 100 miles an hour.)

Milos, Stratovolcanoes, 751 meters, Holocene
Mílos and adjacent small islands have grown from submarine and subaerial volcanism that initially was dominantly andesitic and basaltic, but ended with predominately rhyolitic eruptions. The latest activity during the late Pleistocene was concentrated in the eastern half of the low, U-shaped Mílos Island, forming lava domes and phreatic craters, and on Antimílos Island to the NW, where a composite volcano was constructed. The youngest magmatic eruptions took place about 90,000 years ago, but phreatic explosions, commonly producing overlapping craters rarely more than one kilometer in diameter, continued from late-Pleistocene to Recent times.
Note: Smithsonian Institution Global Volcanism

JPlumb, Luis52 has marked this note useful
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To JPlumb: Near the sea cavesmlines 1 05-28 00:33
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Hi Murray, that is some force, to throw the rocks like this, and it looks like a lot of them, several metres deep. Is the formation showing this soil profile natural, or has it been cut to expose these like this? It looks like water is flowing under it.

Thanks, John

A lovely shot, Murray!The notes are great,too!

  • Great 
  • Luis52 Gold Star Critiquer/Gold Note Writer [C: 1175 W: 8 N: 4240] (15809)
  • [2008-05-31 20:59]

Hi Murray. You have here a fine photo, and an excellent note, very interesting to read. Should be nice to be in that island Milos.
TFS My friend.

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