This paper is about island arc lavas that have erupted above subduction zones and commonly contain a geochemical component derived from partial melting of subducted sediment. It is debated whether this sediment melt signature, with enriched trace element concentrations ...

In December 1963 rockfalls from Little Tahoma Peak on the east side of Mount Rainier volcano fell onto Einmons Glacier and formed avalanches of rock debris that traveled about 4 miles down the glacier and the White River valley. In this distance, the rock ...