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Search Results for ""mauna kea"":

Contours of Hawaiian Volcanoes – February 12th, 2009

February 12th, 2009 Category: Image of the day, Volcanoes

Hawaii, USA - February 9th, 2009

Hawaii, USA - February 9th, 2009

This radar (ASAR) image gives a sharp view of the contours of the Mauna Loa (bottom) and Mauna Kea (top) volcanoes, Hawaii. The white dots along the coastline and loosely scattered among the hills are towns.

Mauna Loa is shaped like a shield because its lava is extremely fluid (it has low viscosity). Its slopes are not steep.

Mauna Kea, on the other hand, is in the post-shield stage of volcanic evolution. About 200,000 to 250,000 years ago, its appearance was probably quite similar to that of its neighbor Mauna Loa today, a smooth shield volcano with a large summit caldera.

Following the transition, eruptions became more explosive in character, resulting in the formation of numerous overlapping cinder cones which eventually filled and completely obscured the caldera. These cinder cones now form the peaks at the summit of Mauna Kea, with several of them exceeding 13,500 feet (4,100 m) in elevation.

source Wikipedia

Snow-capped Mauna Loa Volcano, Hawaii – February 4th, 2009

February 4th, 2009 Category: Volcanoes

Hawaii - January 27th, 2009

Hawaii - January 27th, 2009

The Mauna Loa (below) and Mauna Kea (above) volcanoes, on the island of Hawaii, are capped with snow.

Mauna Loa is the largest volcano on earth and one of five volcanoes that form the Island of Hawaii, part of the Hawaiian Islands chain, in the Pacific Ocean.

It is an active shield volcano, with a volume estimated at approximately 18,000 cubic miles (75,000 kmĀ³), although its peak is about 120 ft lower than that of its neighbor, Mauna Kea.

Although cold temperatures and snow may not come to mind when most people think about Hawaii, both Mauna Kea and Mauna Loa are high enough to permit snowfall during the winter. The snow can even accumulate to a depth of a few meters.

source Wikipedia