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 A visit to the Lyman Museum: Geology
Earth Heritage Gallery
The following information is taken directly from the Lyman Museum web site.
The Earth Heritage Gallery focuses on the natural history of Hawai'i - its geology, ecology and wildlife, all from before the time humans arrived in the islands. Exhibits feature…
100-ft. long mural by island artist Eddy Y showing the full spectrum of Hawaii's ecosystems, with life-size, 3-D dioramas of various natural settings.
Full scale models of an extinct, flightless goose, tiger shark, and many other fish.
Walk-through magma chamber and lava tube
3D scale model of the islands, from ocean floor to mountain top
Minerals of the world
Shells of Hawaii & the world
Geology:
The two types of volcanic rock found in Hawaii are Aa and Pahoehoe Aa has a very broken appearance and contained lots of gases that escaped as it flowed. Pahoehoe is much more fluid. It is hotter but contains less gas. This is the lava that creates lava tubes.
Early Hawaiians used lava tubes for refuge, burial and water collection.
The only recorded pyroclastic flows were 1790 and 1924. This is when gases build up within the earth and cause a violent eruption that blasts water, gases, mud, rocks, lava and ash into the air. When the water and particles fall to the ground they flow until they cool. The resultant rock is sedimentary.
Muana Loa is the largest mountain in the world. It is 54,000 deep and contains 19 cubic miles of material.
The Pacific Plate is moving three to four inches per year northwestward in this area.
Written By
Ellen Kelley
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