001_2012.02.21_volcanoes_weathering

001_2012.02.21_volcanoes_weathering - 2/21/2012 1 GEOS 100...

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Unformatted text preview: 2/21/2012 1 GEOS 100 Fundamentals of Geology Tuesday, 21 February 2012 Announcements: Reading Quiz 4 due now; RQ 5 due Tuesday 28 Feb, 9:15 am Lab this week: Presentation work time Group Exam 1 due 11:59 pm today What is the earth made of? How do earth materials change from one type to another through the Rock Cycle? How are rocks and minerals classified? Should Exam 2 have a Group version also? H e c k y e s ! N o w a y d u d e . 11% 89% I. Heck yes! II. No way dude. 2/21/2012 2 Fissure Eruption Hawaii Cinder Cone, Capulin Volcano, New Mexico 2/21/2012 3 Shield Volcano Shield Volcano, Mauna Loa, Hawaii 2/21/2012 4 Pahoehoe lava flows, HawaiI, HI Composite Volcano (Stratovolcano) 2/21/2012 5 Mt. Pinatubo, Philippines Nue Ardente Mt. Pinatubo, Phillipines 2/21/2012 6 Types of Volcanoes Fissure Eruption - linear vents - mafic (not viscous) magma Cinder Cone - generally small (< 400 m), steep-sided - composed of pyroclastic material Shield Volcano - large, with gentle slopes - fluid (not viscous) magma Composite Volcano (Stratovolcano) - viscous magma - very explosive Caldera - very large, > 100 km across 2/21/2012 7 Siliceous Tuff, Ashfall Fossil Beds, Nebraska 2/21/2012 8 2/21/2012 9 Volcanic Ash from the Yellowstone Caldera Photomicrograph of volcanic ash particles...
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This note was uploaded on 02/21/2012 for the course GEOS 100 taught by Professor Sammatson during the Spring '12 term at Boise State.

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001_2012.02.21_volcanoes_weathering - 2/21/2012 1 GEOS 100...

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