In terms of high field strength element ratios Nb/Th, Zr/Nb, Nb/Y and Zr/Y, most basalts from
non-arc type Archean greenstones are similar to oceanic plateau basalts, suggestive of …

Mantle temperatures provide a key test of the mantle plume hypothesis, and olivine-liquid
equilibria provide perhaps the most certain means of estimating mantle temperatures. Here …

The geochemistry of Quaternary volcanic rocks from Datong provides important constraints
on the petrogenesis of continental alkali and tholeiitic basalts and lithospheric evolution in …

Systematic differences are observed in the petrology and major element geochemistry of
natural peridotite samples from the sea floor near oceanic ridges and subduction zones, the …

Temperature differences between lavas erupted at ocean islands and mid‐ocean ridges are
crucial to documenting the existence of mantle plumes. Olivines are useful for T estimation …

The genesis of intra-plate alkaline basalts remains controversial, and three sources have
been proposed: silica-deficient eclogite–pyroxenite, hornblendite, and carbonated …

Origin of low δ 26 Mg basalts is a controversial subject and has been attributed to interaction
of isotopically light carbonatitic melts derived from a subducted oceanic slab with the mantle …

The customary practice for displaying REE abundances is to normalize them to chondritic
abundances and then to plot these normalized abundances in order of atomic number, Z …

The mineralogy of the oceanic basalt source region is examined by testing whether a
peridotite mineralogy can yield observed whole-rock and olivine compositions from (1) the …

Fifty years after the first modern hypotheses on the origin of the Canary Islands were put
forward, a consensus on this topic seems more and more elusive. Earth scientists use …