Deposits Above Skell Head
7. View northeast of deposits of the climactic eruption above Skell Head, the most complete section on the caldera rim (right end of Panorama H). Climactic pumice fall (unit cp) forms pinkish-white slope and two prominent beds beside and above geologist. Horizontal boundaries between the four flow units of Wineglass Welded Tuff (Williams, 1942; unit cw) that make up the orange to brown cliff are marked by recesses and by relatively abundant, dark lithic fragments. The lower three flow units are partly welded and the highest flow is densely welded, grading up into black vitrophyre. Above the vitrophyre is a dark-colored slope of debris on proximal, lithic-rich climactic ignimbrite (unit cb).
Photograph by Charles R. Bacon.