Geol 285 - Petrology, Dr. Helen M. Lang, West Virginia University, Fall 2005 Hawaiian Volcanoes - Recent EruptionsRecent Eruptions of KilaueaChain of Craters Road, Kilauea volcano, on HawaiiMauna Ulu Flows: 1969 – 1974 Pu’u O’o Flows: 1983 – present Mauna Ulu Flows - A’a (blocky, rough, jagged, spiny surface) Pahoehoe (smooth, billowy, ropy surface)Lava Cascade into Aloi Crater - Mauna Ulu eruptionRoad was DestroyedMauna Ulu Aa lava flowMauna Ulu Pahoehoe FlowsPali = steep slope formed by faultingSE coast of Kilauea Current eruptions from Pu’u O’o and Kapaianaha vents further east, began 1/83Longest continuous Hawaiian eruption in 5 centuriesDestroyed coastal road, village of Kalapana and Royal Gardens developmentJan. 1983 - Pu’u O’o eruption beginsLava has covered the Coastal RoadLava Tube empties into Ocean - 1995Pu’u O’o VentMap – Recent Eruptions – updated Nov. 2004January 2001 lava flows – lava enters Royal Gardens SubdivisionJanuary 2002 lava flows – lava erupts on Kamoamoa BeachJanuary 2003 – lava eruption at Paliuli (Pali Uli)January 2004 – activity in Pu’u O’o crater – source of recent eruptionsMap showing locations of Kamoamoa and Pali Uli and Pu’u O’o That was Kilauea, now Mauna KeaMauna Kea from Saddle RoadCinder Cones on Mauna Kea Review Volcanic History - (see handout) The Hawaiian Islands Geologic Map of Maui – represents renewed volcanism stage #5Waterfalls and Black Sand Beaches, Hana highway, NE Maui CoastSeven Sacred Pools (SE of Hana)Geologic Map of MauiWeird rocks on north MauiHaleakala Summit at SunriseRocks at Haleakala Summit (renewed volcanism stage)The BikersHawaiian Sunset Pele’s tears Tree molds Volcanic
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