In 1968 the average salary of men teachers in maintained schools in England and Wales was Â£1,646. I estimate that the last two pay settlements have raised this figure to about Â£1,880. The comparable figure at 31st March, 1963, was Â£1,244.
Two main tectonic structures are spreading centers and subduction zones. Spreading centers occur at the boundary between two plates that are moving apart, called divergent plate boundaries. Here the plate motion opens a gap between the plates and magma from the mantle rises up through it.
Transition zone. Transition zone may refer to: Transition zone (Earth), a part of the Earthâs mantle located between the lower mantle and the upper mantle. Transition zone, the region between the near and far fields of a transmitting antenna. Transition zone (TZ), a glandular region of the prostateâ see Prostate#Zones.