Mazama Ash in the Northeastern Pacific

Science  05 Jul 1968:
Vol. 161, Issue 3836, pp. 47-49
DOI: 10.1126/science.161.3836.47


Volcanic glass in marine sediments off Oregon and Washington correlates with continental deposits of Mount Mazama ash by stratigraphic position, refractive index, and radiocarbon dating. Ash deposited in the abyssal regions by turbidity currents is used for tracing of the dispersal routes of postglacial sediments and for evaluation of marine sedimentary processes.