Origin of Hawaiian Islands believed linked to “melting spot”


  • Anonymous


The origin of the chain of more than 50 volcanoes whose eruptions forged the Hawaiian Islands is believed to be linked to a roughly circular ‘melting spot’ about 185 miles in diameter, deep within the earth's mantle at least 40 miles beneath the floor of the Pacific Ocean just northeast of the Island of Hawaii, according to scientists of the U.S. Geological Survey.

In a recent American Scientist magazine article, G. Brent Dalrymple, Eli A. Silver, and Everett D. Jackson pinpoint the melting spot as the major source of huge amounts of lava that began to build the Hawaiian group of islands, which range progressively younger in age from northwest to the southeast (from Kauai, 5.6 million years, to Hawaii, less than 0.7 million years).