Sunday, June 19, 2011

Geographical Setting and eruptive history


Elbrus stands 20 km (12 mi) north of the main range of the Greater Caucasus and 65 km (40 miles) south-southwest of the Russian town of Kislovodsk. Its permanent icecap feeds 22 glaciers, which in turn give rise to the Baksan, Kuban, and Malka Rivers.

Elbrus sits on a moving tectonic area, and has been linked to a fault. Apparently, Elbrus has a "deep" supply of magma that resides underneath it.


The volcano is currently considered inactive, as no eruptions have ever been recorded. Still Elbrus was active in the Holocene. According to the Global Volcanism Program the last eruption took place between 0 and 100 AD. Evidence of recent volcanism includes several lava flows on the mountain, which look fresh, and roughly 260 square kilometres (100 sq mi) of volcanic debris. The longest flow extends 24 kilometres (15 mi) down the northeast summit, indicative of a large eruption. There are still more various signs of activity still present on the volcano, including solfataric activity and hot springs. The western summit has a well preserved volcanic crater about 250 m in diameter.

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