Revealing the secrets of Kilauea Volcano

The study sample "hair Pele", taken from the crater of the volcano Kilauea, Hawaii.

Studies of the chemical features of Kilauea volcano on samples of lava and volcanic glass ("Pele's hair", "Pele's tears": the name of the mythological god, patron of the volcano) has been going on for about a year.

With various types of chemical and electronic analysis, scientists monitor changes that pass inside the volcano after the eruption.

Temperature set on the composition of volcanic glassy rock formed by solidification of changing the composition of the magma. Crystals resembling fiberglass, can tell about the features move to the surface of the magma of a volcano and uncover some other secrets of the goddess Pele.

It is known that sulfur dioxide released from basaltic magma flowing last. By the way, what the concentration of this gas in the glassy rocks watching scientists to judge the impact on the character of the eruption of physical changes occurring within Kilauea and other volcanoes.

Just over a year ago (03.05.2011) west of the crater Pu-u-Oh Kilauea volcano erupted. In the analysis of the samples taken after the event, it became clear that the fountains of lava passed through a layer overlying the surface of the magma in a volcano kopivsheysya since the last eruption in 1960. Three weeks later, the pressure inside has stabilized, and magma began to rise up and fill the empty lava lakes on top of Kilauea. This set the new eruption. Temporarily hidden under a huge cloud of ash and gas magma was formed on the surface absorb the crust, then falling, then rising as arrow on the barometer, and dissolving the rock forming the walls of the crater.

Samples of "hair Pele", taken after the eruption in March 2008, it became clear that the temperature of the magma at the surface decreased from 1170? C to 1.155? C (at this time). In some crystals containing chrysotile and other molten impurities. The composition of these impurities and sulfur concentration show that the temperature at the exit of the magma to the surface was 1200? C, while it lies at a depth of 1 km. Now, in addition, that the temperature of the magma down, it became known that she crept up to the surface and is only 100 meters from the edge of the crater. The upper layers of magma and magma from the rift zone continues to be mixed, enriched with sulfur dioxide.

From the above it is clear that it was formed about 30 years of internal structure of Kilauea eruption continues on his way to a new eruption and the volcano is not going to retire.


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