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ATLANTIS & the Atlantic Ocean

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Author Topic: ATLANTIS & the Atlantic Ocean  (Read 22105 times)
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« Reply #345 on: March 30, 2009, 12:10:31 am »

La Palma

The northern of two large volcanic centers forming the wedge-shaped island of La Palma, Taburiente, is seen from the southern volcano, Cumbre Vieja. Bejenado volcano (left-center) is located in the large breached caldera of Taburiente volcano (background). Cumbre Nueva Ridge (right) was formed by a large-scale collapse. Cumbre Vieja, the southern volcano, is one of the most active in the Canaries. The elongated volcano is oriented N-S and has been the site of numerous historical eruptions.

Photo by Yasuo Miyabuchi, 1997 (Forestry and Forest Products Research Institute, Kyushu).

 Country: Spain
Subregion Name: Canary Islands
Volcano Number: 1803-01-
Volcano Type: Stratovolcanoes
Volcano Status: Historical
Last Known Eruption: 1971   
Summit Elevation: 2426 m 7,959 feet
Latitude: 28.57°N  28°34'0"N
Longitude: 17.83°W 17°50'0"W

The 47-km-long wedge-shaped island of La Palma, the NW-most of the Canary Islands, is composed of two large volcanic centers. The older 2426-m-high northern one is cut by the massive steep-walled Caldera Taburiente, one of several massive collapse scarps produced by edifice failure to the SW. The younger 1949-m-high Cumbre Vieja, the southern volcano, is one of the most active in the Canaries. The elongated volcano dates back to about 125,000 years ago and is oriented N-S. Eruptions during the past 7000 years have originated from the abundant cinder cones and craters along the axis of Cumbre Vieja, producing fissure-fed lava flows that descend steeply to the sea. Historical eruptions at La Palma, recorded since the 15th century, have produced mild explosive activity and lava flows that damaged populated areas. The southern tip of the island is mantled by a broad lava field produced during the 1677-1678 eruption. Lava flows also reached the sea in 1585, 1646, 1712, 1949, and 1971.
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