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Home > All Images > 2002 > July > 24 Jul 2002

Images Dated 24th July 2002

Choose from 14 pictures in our Images Dated 24th July 2002 collection for your Wall Art or Photo Gift. All professionally made for Quick Shipping.


Earths structure Featured 24 Jul 2002 Print

Earths structure

Earth's structure. Cut-away artwork of the internal structure of the Earth. Below the outer rocky layer (lithosphere), a zone of near-molten rock called the mantle (red) extends down to 2900 kilometres (km). Mantle material rises to form new lithosphere at mid-ocean ridges. Lithosphere sinks into the mantle in subduction zones and is destroyed. As the pressure increases with depth, the mantle thickens and its temperature rises to an estimated 3000 degrees Celsius. Beneath the mantle is the nickel-iron core. It is about 7000 km across. The outer core (yellow) is molten and the inner core (white) is solid. The temperature at the core may be over 5000 degrees Celsius

© GARY HINCKS/SCIENCE PHOTO LIBRARY