TY  - RPRT
TI  - Titanium dioxide in pyroclastic layers from volcanoes in the Cascade Range
AU  - G.K. Czamanske
AU  - S.C. Porter
PY  - 1965
DO  - 10.1126/science.150.3699.1022
UR  - https://pubs.usgs.gov/publication/70010461
ID  - 70010461
ER  -