Robuta

https://www.usgs.gov/publications/sr-isotopic-variations-along-juan-de-fuca-ridge Sr isotopic variations along the Juan de Fuca Ridge | U.S. Geological Survey Sr isotopic ratios of 39 glass and microcrystalline basalt samples along the Juan de Fuca Ridge and 1 glass sample from Brown Bear Seamount are at the lower... juan de fuca ridge https://www.usgs.gov/publications/morphometric-variability-within-axial-zone-southern-juan-de-fuca-ridge-interpretation Morphometric variability within the axial zone of the southern Juan de Fuca Ridge: Interpretation... The morphometric characteristics of the axial regions of oceanic spreading centers are determined by (1) the type of volcanic flows, (2) the relation between... juan de fuca ridge