等深岩丘是等深流的沉积作用形成的沉积体。等深流就是指沿海底等深线水平流动的底流,也有人称之为等高流、水平流、平流等。最先注意到深海底流及其沉积作用的是德国海洋物理学家G·Wust (1936,1955,1958)和美国沉积学家B·C·Heezen(1954,1959)。而对深海底流沉积进行实质性研究是从Heezen和Hollister(1963,1964)及Schneider和Heezen(1964)对北大西洋西部底 Isoprosthesion is a sedimentary body formed by sedimentation of isobath. Isochronous flow refers to the horizontal flow along the bottom of the isobath flow underflow, also known as contour flow, horizontal flow, advection and so on. G-Wust (1936, 1955, 1958), the German marine physicist, and BC Heezen (1954, 1959), a US sedimentologist, first noted the deep-sea currents and their sediments. Substantial studies of deep-sea sediment deposition have been conducted from Heezen and Hollister (1963, 1964) and Schneider and Heezen (1964) to the western end of the North Atlantic