|mauna loa lava subway scheme 1984|
The largest volcano on basis is Mauna Loa on Hawai’i Big Island. Like all Hawaiian volcanoes, Mauna Loa was created equally the Pacific tectonic plate moved over the Hawaiian hotspot inwards the Earth’s underlying mantle. The Hawaii isle volcanoes are simply the most recent prove of this procedure that, over seventy 1000000 years, has created the 3,700 mi (6,000 km)-long Hawaiian–Emperor seamount chain. The prevailing, though non completely settled, sentiment is that the hotspot has been largely stationary inside the planet’s drape for much, if non all of the Cenozoic Era. However, patch the Hawaiian feather is well-understood as well as extensively studied, the nature of hotspots themselves remains fairly enigmatic.
|Position of Mauna Loa on Hawaiʻi island|
Mauna Loa is a typical shield volcano inwards form, taking the shape of a long, wide dome extending downward to the bounding main flooring whose slopes are virtually 12° at their steepest, a final result of its extremely fluid lava. The shield-stage lavas that built the enormous original volume of the mount are tholeiitic basalts, similar those of Mauna Kea, created through the mixing of primary magma as well as subducted oceanic crust.
March 24-April 15, 1984
Name: Moku`aweoweo, “Moku” refers to a coastal state department or islet; “`aweoweo” is a type of ruddy Hawaiian fish. Literal translation is fish department (the ruddy of the fish suggests ruddy lava).
- Dimension: three x five km, elongated northeast-southwest
- Depth: 183 m deep
- Age: estimated to accept collapsed 600-750 years ago
Oldest Dated Rocks
Between 100,000 as well as 200,000 years ago
About 400,000 years ago
Between 1,000,000 as well as 700,000 years earlier present
Scientists depict a ‘new’ type of volcanic eruption
Deep origins to the bespeak of Hawaiian volcanoes