R.W. Dalrymple is a clastic sedimentologist with wide-ranging interests. Ongoing research projects include: the sedimentology and high-resolution seismic stratigraphy of the tide-dominated, Fly River delta, Papua New Guinea; the sedimentology, sequence stratigraphy, and chemostratigraphy of Neoproterozoic and early Cambrian strata of the Mackenzie and Wernecke Mtns, N.W.T. and Yukon; the influence of physical sedimentary processes and biological controls on the textures, facies, and stratigraphy of bioclastic carbonates in the Oligo-Miocene, Te Kuiti Group, New Zealand; and the sedimentology and stratigraphy of transgressive, wave-influenced (dominated?) tidal flats, South Korea.

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3-dimensional, medium, simple dunes on a tidal sand bar in Cobequid Bay, Bay of Fundy, Canada.