重褶褶皱在造山带广泛发育,过去常常把它看作变形的不连续脉动的证据。近来,许多研究者指出,多世代褶皱可能是单一渐进变形的产物。本文旨在研究皮洛纳片岩中的重褶褶皱的成因,该片岩构成了加利福尼亚州南部和亚利桑那州西南部文森特逆冲体系的下盘。皮洛纳片岩主要由变杂砂岩和镁铁质片岩组成,其上为前寒武纪、古生代和中生代片麻岩 Pleat folds extensively develop in orogenic belts, which used to be seen as evidence of discontinuous pulsations of deformation. Recently, many researchers have pointed out that multi-generation folds may be the product of a single progressive deformation. The purpose of this paper is to study the genesis of the fold folds in the Piton schist that forms the footwall of the Vincent thrust system in southern California and southwestern Arizona. The Pitonian schist is composed mainly of altered-laden and mafic schists, which are Precambrian, Paleozoic and Mesozoic gneisses