Atlas of Deformational and Metamorphic Rock Fabrics

In May 1976 Lucian B. Platt organized a highly successful Penrose Confer­ ence on The Formation of Rock Cleavage at Bryn Mawr College in Penn­ sylvania, U. S. A. The meeting drew together about 70 specialists from both sides of the Atlantic and from Australasia, who contributed discussions on various aspects of rock cleavage and its formation. Even early in the meet­ ing it became clear to the participants that they lacked a common terminol­ ogy, that often the same technical word implied d...