The suggestion by R. A. M. Wilson that the diabase on Cyprus represents a succession of oriented intrusive dikes is refuted on the basis of the wide extent (more than 35 miles), the absence of material into which the dikes would have been intruded, and the problem of heat dissipation, and it is restated that the diabase most likely represents a system of sharply folded ancient lava sheets, intruded and metamorphosed by plutons and related dikes.

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