List of Slides for Hawaii NP

Island of Hawaii

• A blocky aa lava flow advances slowly but inescapably across the landscape in 1973.
• Pahoehoe lava, erupted in 1972, has a smooth, ropy surface.
• Pahoehoe and aa lava flows drape a fault scarp, remnant of the eruptions from 1969 - 1974 at Holea Pali.
• Another aa lava flow from the 1986 eruption of Kilauea blocks a highway near Kapa ahu.
• This truck will never drive again!
• A lava flow from 1971 covers older cinders and blocks, along the southwest rift zone.
• Lava flows devastate neighborhoods on the flanks of Kilauea.
• The "fire pit", or active crater, of Halemaumau in Kilauea caldera sometimes holds a lake of bubbling, glowing lava.
• The side of Halemaumau Crater has collapsed due to mass wasting. Mineral encrustations grow around the vents of fumaroles, marked by rising steam.
• In 1959, a spectacular eruption formed Pu'u Pua'i Cone in Kilauea Iki, a large pit crater near the caldera of Kilauea Volcano.
• Devastation Trail leads to Pu'u Pua'i Cinder Cone.
• Thurston Lava Tube, on the east side of Kilauea, acted as a large pipe (~ 20 feet in diameter) to convey lava downslope far from the vent.
• The outer crust of a lava tube insulates the molten rock inside, so that it can continue to flow long distances. Later, the empty tube remains as a tunnel.
• The famous black-sand beach at Kaimu formed from weathered basalt.
• Mauna Loa Volcano rises 13679 feet above sea level.
• Consequently, it even receives snow in the winter, although it stands within the tropics!
• Pit craters line up in the caldera of Mauna Loa. Mauna Kea, active 3000 years age, is visible in the distance.
• Weathered volcanic rocks provide fertile soil, as shown by the lush vegetation of the Botanical Gardens at Hilo.