Diatoms are present in middle to lower upper Miocene sections of all holes examined during Leg 150, but are generally absent or in low abundance in Pleistocene to middle upper Miocene sediments. An ex
High-resolution diatom stratigraphies from mid-Holocene sediments taken from fringe and central locations in Moss Lake, a small lake in the foothills of the Cascade Range,...
Sediment depth is given in mbsf. Whenever valve specimens were encountered, each end of a pennate diatom was taken as a half valve (0.5). With regard to centric diatoms, the...
A = abundant (>30% of total assemblage); C = common (15%-30%); F = few (3%-15%); R = rare (<3%); and T = trace (species encountered only sporadically); * = reworking or...