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esas0602temp_SWFlaresUp-stu

esas0602temp_SWFlaresUp-stu - TheSouthwestaresup...

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The Southwest flares up! (U.S. Geological Survey, 2007) Apache Leap (cliffs of volcanic rock) Superior, Arizona EARTH SCIENCE in ARIZONA and the SOUTHWEST
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2 The Southwest flares up! Volcanism Grotzinger et al. (2007) Igneous rocks and landforms
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3 The Southwest flares up! Sunset Crater N of Flagstaff, AZ Colorado Plateau Superstition Mountains NE of Apache Junction, AZ Basin and Range - Transition Zone US 60 volcanic centers (locations approximate) Agathla ( ‘Aghaa ãâ , “much wool”) Peak N of Kayenta, AZ, Navajo Nation, Colorado Plateau Volcanoes and other igneous landforms dot the Southwest intrusive (exposed by erosion) extrusive
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4 The Southwest flares up! Seismology tells us that the bulk of the Earth is solid . How do liquid magmas form? Grotzinger et al. (2007) Earthquake Grotzinger et al. (2007)
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5 The Southwest flares up! What makes rocks melt to form magma? Laboratory experiments show that 3 factors are important Grotzinger et al. (2007) Higher Mg, Fe, Ca……..Higher SiO 2 , Na, K
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6 The Southwest flares up!
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