Pushkar V.S., Cherepanova M.V., Ivanov V.F., Hopkins D.M., Roof S.
В журнале Geology of the Pacific Ocean
Год: 1997 Том: 13 Номер: 5 Страницы: 907-912
A 8-10 m high terrace was studied 2 km west of Nome, Alaska. At the base of the terrace are beach sands and gravels overlain by a 3 m-thick peat layer with traces of cryogenic structures. The top of the sequence is a layer of sandy loams and loams with a thickness of 1 m. Three diatom assemblages were identified. The diatoms from sands and gravels are of nearshore shelfal origin. These are succeeded upward by a community of marsh diatoms discovered in the sand and peat member. In the loams, a nearshore marine assemblage was identified. These three assemblages are referred to the 5e, 5d, and 5c phases of the Pelukian transgression. The relatively high topographic position of the beds with marine diatoms above the present-day shoreline suggests upward tectonic movements at least since Sangamonian time.
