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Unformatted text preview: End moraine Terminal moraine Recessional moraine Drumlin Esker Kame Kettle Ice age time period in which the earths climate is cooler and glaciers cover considerably more of the earths land surfaces than usual. Possible causes of glaciation Milankovitch cycles variations in the earths orbit. Probably a minor influence. Variations in the shape of the earths orbit around the sun (elliptical) Changes in the angle of the tilt of the earths axis Wobbling of the earth on its axis (precession, like a top) Location of continents near poles (plate tectonics) Ocean circulation/current patterns (plate tectonics and water properties) Reflectance of materials on the earths surface (heat radiated back into space)...
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- Fall '09