This book has been written in response to While considerable effort has been made to requests from a number of colleagues in the ensure that the coverage is comprehensive, it is earth sciences in different parts of the world. not necessarily exhaustive. Prominent among these are geologists whose The importance attached to the structural interests lie in the fields of isotopic and analysis of migmatites (and other complex economic geology and who have a particu structural associations) stems from the fact larly keen appreciation of the importance to that resolution of their structural...