150Lec12 - Lecture #12: Mafic Volcanism: Hawaiian and...

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Lecture #12: Mafic Volcanism: Hawaiian and Icelandic Hot Spots and the Mid-Atlantic Ridge (Abbott, pp. 196-202, 218-219, 236-237) In these lectures, know the locations (the countries and US states) of the bolded volcanoes Hawaiian Volcanoes As discussed earlier, the shield volcanoes of Hawaii (USA) formed from hot spot volcanism (Figure 8.23, p. 200). Volcanism ended in the northwestern Hawaiian Islands as they moved off the hot spot from the movement of the Pacific Plate (Figure 3.11, p. 58). The end of volcanism caused the islands to cool and contract. Without volcanism, erosion and landslides become dominant and tear down the islands over time (Figure 5.14, p. 121). Mauna Loa , Mauna Kea , and Kilauea are the major recently active Hawaiian volcanoes. They are located on the big island (Figure 8.23, p. 200). Mauna Loa is the largest of the three shield volcanoes and frequently erupts. Although the summit of Mauna Loa is only about 4 kilometers above sea level, the base of this shield volcano on
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This note was uploaded on 07/14/2011 for the course GLY 150 taught by Professor Henke during the Spring '08 term at Kentucky.

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150Lec12 - Lecture #12: Mafic Volcanism: Hawaiian and...

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