Geol 285 - Petrology, Dr. Helen M. Lang, West Virginia University, Fall 2005 Hawaiian Volcanoes - Recent Eruptions Recent Eruptions of Kilauea Chain of Craters Road, Kilauea volcano, on Hawaii Mauna 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 eruption Road was Destroyed Mauna Ulu Aa lava flow Mauna Ulu Pahoehoe Flows Pali = steep slope formed by faulting SE coast of Kilauea Current eruptions from Pu’u O’o and Kapaianaha vents further east, began 1/83Longest continuous Hawaiian eruption in 5 centuries Destroyed coastal road, village of Kalapana and Royal Gardens development Jan. 1983 - Pu’u O’o eruption begins Lava has covered the Coastal Road Lava Tube empties into Ocean - 1995 Pu’u O’o Vent Map – Recent Eruptions – updated Nov. 2004 January 2001 lava flows – lava enters Royal Gardens Subdivision January 2002 lava flows – lava erupts on Kamoamoa Beach January 2003 – lava eruption at Paliuli (Pali Uli) January 2004 – activity in Pu’u O’o crater – source of recent eruptions Map showing locations of Kamoamoa and Pali Uli and Pu’u O’o That was Kilauea, now Mauna Kea Mauna Kea from Saddle Road Cinder 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 Coast Seven Sacred Pools (SE of Hana) Geologic Map of Maui Weird rocks on north Maui Haleakala Summit at Sunrise Rocks at Haleakala Summit (renewed volcanism stage) The Bikers Hawaiian Sunset Pele’s tears Tree molds Volcanic
View Full Document
Unlocking...