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Images Dated 7th November 2002

Available as Framed Photos, Photos, Wall Art and Gift Items

Choose from 17 pictures in our Images Dated 7th November 2002 collection for your Wall Art or Photo Gift. Popular choices include Framed Photos, Canvas Prints, Posters and Jigsaw Puzzles. All professionally made for quick delivery.

Ocean crust Featured 7 Nov 2002 Print

Ocean crust

Ocean crust. Cut-away illustration of ocean geology. At top, molten rock rises from the mantle, forming new ocean plate and causing volcanic eruptions. Cooling lava builds up a mid- ocean ridge. Below this, two possible types of ridge are shown. In the Pacific, new plate is formed quickly, leading to a crested ridge (left). Atlantic ridges are slow-spreading with a median valley (right). Below is an enlarged view of the valley, showing layers of rock built up by volcanoes and cooling mantle material. At bottom left is a black smoker, a hydrothermal vent found along all mid-ocean ridges. At bottom right, sedimentary rock forms over the sea floor