Characteristic Features of Structure Successions

Abstract

Experience shows that the early folds in extensive structural successions are invariably isoclinal, the earliest of these tending to be intrafolial. They are often preserved only as isolated rootless hinges detached from the limbs because of extreme flattening and shear associated with deformation subsequent to their initiation. In many cases, particularly where there has been a long deformational history, the present shape of these structures probably owes little to the processes that formed them initially and is more likely to represent the effects of modification stemming from later deformation.