TY  - RPRT
TI  - Distinguishing palagonitized from pedogenically-altered basaltic Hawaiian tephra: Mineralogical and geochemical criteria
AU  - Peter Schiffmant
AU  - R.J. Southard
AU  - D. D. Eberl
AU  - J.L. Bishop
PY  - 2003
DO  - 10.1144/gsl.sp.2002.202.01.20
UR  - https://pubs.usgs.gov/publication/70024171
ID  - 70024171
ER  -