Hampton, Monty A., Torresan, Michael E., and Barber, Jr., John H., 1997, Sea-floor geology of a part of Mamala Bay, Hawaii: Pacific Science, v. 51, n. 1, p. 54-75. Reproduced by permission of the University of Hawaii Press.
Figure 12gh. Photographs of a variety of ripple types in the study area. G. Vaguely formed ripples around winnowed dredged material. H. Symmetric ripples with bi-directional crest direction, from upper right to lower left and from upper left to lower right, implying two dominant current directions. See also a, b, c, d, e, f, .