His spirit and determination in the face of the rare genetic disorder Stickler Syndrome is an inspiration to all. Colin was just a few months old when he was diagnosed with Stickler Syndrome, which progressively attacks tissue joining bones, eyes and ears. Wendy Hughes, who runs the UK support group for Stickler Syndrome sufferers, said it was unusual for victims to become both deaf and blind.
The crust and the upper layer of the mantle together make up a zone of rigid, brittle rock called the Lithosphere. The layer below the rigid lithosphere is a zone of asphalt-like consistancy called the Asthenosphere. The asthenosphere is the part of the mantle that flows and moves the plates of the Earth. The Mantle . The mantle is the layer located directly under the sima. It is the largest layer of the Earth, 1800 miles thick. The mantle is composed of very hot, dense rock. This layer of rock even flows like asphalt under a heavy weight. This flow is due to great temperature differences from the bottom to the top of the mantle. The movement of the mantle is the reason that the plates of the Earth move!
The Mantle is represented by a glyph comprising a series of angular, branching lines framed by a circle. This glyph is ubiquitous in Forerunner art, architecture and technology due to the Mantle's wholesome influence on every aspect of Forerunner life.