08b_volcano_09_post

08b_volcano_09_post - ture 8 1 Types of volcanic features...

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Unformatted text preview: ture 8: 1 Types of volcanic features • • Flood basalts : regional lava flows that come from fissures (long, linear cracks in the earth's surface); thick accumulations build lava plateaus Fig. 9.9 ture 8: 2 Krafla fissure eruption, 1977 Northern Iceland Types of volcanic features ture 8: 3 Krafla Krafla fissure fissure eruption , , 1980 1980 Northern Northern Iceland Iceland Types of volcanic features ture 8: 4 Krafla splatter cones, northern Iceland Photo: R.W. Schlische Photo: R.W. Schlische Types of volcanic features Splatter cones along fissure eruption ture 8: 5 • Flood basalts / fissure eruptions Laki crater row, southern Iceland Photo: Y. Arthus-Bertrand Types of volcanic features Fissure on Kilauea’s western rift Photo: M. Levy Photo: M. Levy ture 8: 6 Fig. 9.18 Types of volcanic features • Flood basalts / fissure eruptions Columbia River basalt and basalt of Snake River Plain are flood basalts. ture 8: 7 • • Ancient flood basalts of Columbia River region Ancient flood basalts of Columbia River region Photo: P.L. Kresan Types of volcanic features ture 8: 8 Products of eruptions • Gases: CO 2 , H 2 O, S O 2 , H 2 S , HCl, N 2 Photo: P.L. Kresan ture 8: 9 • Pyroclastic (fragmental) material, e.g., ash, bombs Paricutin cinder cone eruption in 1944, Mexico Photo: E. Tad Nichols Products of eruptions ture 8: 10 • Pyroclastic (fragmental) material, e.g., ash, bombs Volcanic bomb ejected from Asama volcano, Japan. Photo: Science Source Products of eruptions ture 8: 11 Lava Lava fountain fountain and lava and lava “rivers” “rivers” spewing spewing from Pu’u from Pu’u ‘O’o, ‘O’o, Kilauea Kilauea Photo: USGS Photo: USGS Products of eruptions ture 8: 12 Lava Lava “falls”, “falls”, Kilauea Kilauea Photo: USGS Photo: USGS Products of eruptions ture 8: 13...
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This note was uploaded on 09/25/2011 for the course GEOLOGY 100 taught by Professor Lepre during the Fall '11 term at Rutgers.

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08b_volcano_09_post - ture 8 1 Types of volcanic features...

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