TY - RPRT TI - Minor and trace element geochemistry of volcanic rocks dredged from the Galapagos spreading center: Role of crystal fractionation and mantle heterogeneity AU - D.A. Clague AU - F.A. Frey AU - G. Thompson AU - S. Rindge PY - 2012 DO - 10.1029/jb086ib10p09469 UR - https://pubs.usgs.gov/publication/70011932 ID - 70011932 ER -