Presentation on theme: "Santorini eruption (Heiken and McCoy, JGR, 1984) This is before the the eruption; then show a large eruption."— Presentation transcript:
Santorini eruption (Heiken and McCoy, JGR, 1984) This is before the the eruption; then show a large eruption
Santorini eruption (Heiken and McCoy, JGR, 1984) This is right after the eruption
Santorini eruption (Heiken and McCoy, JGR, 1984) This is today. To get here, show the interior islands slowly growing with small, occasional eruptions.
Santorini: Tectonics of the Eastern Mediterranean
Fuji: show the ocean plates moving, with occasional volcanic activity at both the ridge and the “Folded Mountain Belt”
Fuji: Show an animation of the plates moving, from as far back as possible (750 million years?) to the present. There should be many such animations available.
Galapagos: hydrothermal circulation. Show occasional lava flow, as well as water circulation down into the crust, coming near the magma chamber, and then coming out at the ridge as thermal vents.
Grand Canyon: show the development of the canyon through headward erosion. Start with a flat plateau and slowly start having the fingers of side valleys cut into the surrounding plateau until the canyon is as wide as it is today.
Grand Canyon: Animation showing the transformation of the California Coast from a subduction zone to a transform fault.
Blue Hole: Animation showing the retreat of the North America Ice Sheet.
Himalayas: collision of India into China, forming the Tibetan Plateau
Himalayas: collision of India into China, forming the Tibetan Plateau (another version, which shows how the Himalayas are rising)
Himalayas: collision of India into China, forming the Tibetan Plateau (another version – which shows how the thrusted blocks build southward)
Himalayas: collision of India into China, forming the Tibetan Plateau (another version – the science isn’t correct, but I like the textures)
Himalayas: tectonic uplift of mountain peaks with large-scale erosion (this image gives the general idea of the isostatic uplift, though some of the peaks can actually get higher)
Amazon: this would be a fine level of detail for an animation of the convergence of the rivers. (I will explain this to you)
Amazon: animation showing the deepening of a soil profile. Over hundreds of feet, it is the E horizon that lengthens. So a far off enough perspective to be able to show these layers start near the surface and then extend deeper and deeper (to about 200 feet) with increased rain.
Iguazu Falls: Animation showing how the waterfall recedes over time, moving upstream as a weaker layer of rock at the bottom (e.g., the tan layer at the bottom in the figure at the bottom) erodes away, undercutting the stronger rock layers overhead.
Mammoth Caves: Animation showing the formation of a cave system. With the water table high, water-filled passages begin to form (1); the passages widen and connect (2); when the water table drops, the caves become air-filled (3); at this point, cave features like stalactites and stalagmites begin to form. 1 4 3 2
Blue Hole: Animation of receding North American Ice Sheet. The numbers here are in thousands of years in the past. You could have a clock in the upper corner, counting down from 16,000 (15,000; 14,000; etc., down to 5,000). The ice sheet would be unmoving from 16-16 thousand, and would be gone by 5,000 years ago.
Bryce Canyon: http://www.nps.gov/brca/naturescience/hoodoos.htm http://www.nps.gov/brca/naturescience/hoodoos.htm Show as an animation, evolving from one to the next
Bryce Canyon: Grand Staircase: (Show as an animation, sweeping right to left) http://brycecanyoncountry.com/blog/wp- content/uploads/2011/01/Grand_Staircase-big1.jpg