Volcanoes 0.0 / 5 ? GeographyPlate tectonicsA2/A-levelWJEC Created by: MaisiebelleCreated on: 12-06-19 12:49 7524311068 Across 1. Floods which occur very suddenly and discharge large volumes of water, ice and debris from a glacial source (11) 4. Built from particles of congealed lave ejected from a single vent. They have a bowl-shaped crater and do not rise more than a thousand feet above their surroundings (6) 5. Satellite-based technology (3) 6. If a magma has a low viscosity, gas can escape easily, therefore the magma forms lava flows when it erupts (8) 8. Fragments of rock that are produced when magma / rock is explosively ejected (6) 10. The lava flow pours out from the central summit vent in all directions which produces a broad, gently sloping cone of flat, domical shape (6) Down 2. High speed avalanches of hot ash, rock fragments and gas (11, 4) 3. Sensitive instruments placed on the ground (4, 6) 4. Steep-side, symmetrical cones of large dimension built of alternating layers of lava flows, volcanic ash, cinders, blocks and bombs (9) 7. Streams of molten rock that pour from an erupting vent (4, 4)
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