Geological Interpretation of Seismic Profiles in Prince William Sound, Alaska
A series of seismic reflection profiles was made during the summer of 1964 in the northeastern part of Prince William Sound, Alaska. Three rock units recognized in the profiles are (1) the ice-sculptured metamorphic basement, overlain by (2) probable glacial drift, and (3) Holocene marine sediments. Channels in the basement may have been formed in part by faulting as well as by glacial scour; they have been extensively modified by fill of rock units (2) and (3), so that the present sea floor does not closely represent the effects of glaciation. The Holocene strata have been faulted, but the vertical separation is small, suggesting that sound reacts to regional tectonism without severe Recent faulting.