Why was Siccar point so important?
Natural EnvironmentsIn 1788, James Hutton first discovered Siccar Point, and understood its significance. It is by far the most spectacular of several unconformities that he discovered in Scotland, and very important in helping Hutton to explain his ideas about the processes of the Earth. Why is Siccar Point important? Siccar Point is famous as the site
What is the theory of plate tectonics?
Regional SpecificsWhat is the theory of plate tectonics explain? The theory of plate tectonics states that the Earth’s solid outer crust, the lithosphere, is separated into plates that move over the asthenosphere, the molten upper portion of the mantle. Oceanic and continental plates come together, spread apart, and interact at boundaries all over the planet. Where
What is the average speed of a tsunami?
Regional SpecificsSince the average depth of the Pacific ocean is 4000 m (14,000 feet) , tsunami wave speed will average about 200 m/s or over 700 km/h (500 mph). How fast is a tsunami? In the deep ocean, a tsunami can move as fast as a jet plane, over 500 mph, and its wavelength, the distance
What is volcanic debris?
Natural EnvironmentsBGS Research — Volcanoes. Debris flows, also known as lahars when they involve volcanic material, are mixtures of sediments and water that flow down the slopes in response to gravity. What does volcanic debris mean? Moving masses of rock, soil and snow that occur when the flank of a mountain or volcano collapses and slides
What are large crystals?
Regional SpecificsAn igneous rock with large crystals probably indicates that the rock formed deep within the Earth, since it is typically warmer deep inside the Earth than near the surface. These are called intrusive rocks, and they have a phaneritic texture (from the Greek “phanerous” meaning visible). What is the name of the large crystals? Examples
What is the legend of Popocatepetl and Iztaccihuatl?
Regional SpecificsIn Aztec mythology, Iztaccíhuatl was a princess who fell in love with one of her father’s warriors, Popocatépetl. The emperor sent Popocatépetl to war in Oaxaca, promising him Iztaccíhuatl as his wife when he returned (which Iztaccíhuatl’s father presumed he would not). What is the legend of Popocatepetl & Iztaccíhuatl a love story? Popocatepetl and