We present a new synthesis of oceanic crustal structure from two‐dimensional seismic
profiles to explore differences related to spreading rate and age. Primary results are as …

When Harry Hess first proposed the theory of seafloor spreading, he imagined that mantle
peridotite upwelling at midocean ridges reacted with water to form a serpentinite oceanic …

Seismic imaging methods have provided detailed three-dimensional constraints on the
physical properties of magmatic systems leading to invaluable insight into the storage …

The subducting oceanic lithosphere may carry a large amount of chemically bound water
into the deep Earth interior, returning water to the mantle, facilitating melting, and hence …

A global compilation of 170 time‐averaged volumetric volcanic output rates (Qe) is
evaluated in terms of composition and petrotectonic setting to advance the understanding of …

The major element, trace element, and isotopic composition of mid‐ocean ridge basalt
glasses affected by the Azores hotspot are strongly correlated with H2O content of the glass …

Newly acquired seismic refraction and microearthquake data from the Trans-Atlantic
Geotraverse (TAG) segment of the Mid-Atlantic Ridge at 26° N reveal for the first time the …

Convective circulation of the mantle causes deflections of the Earth's surface that vary as a
function of space and time. Accurate measurements of this dynamic topography are …

Crustal accretion at mid-ocean ridges governs the creation and evolution of the oceanic
lithosphere. Generally accepted models,,–of passive mantle upwelling and melting predict …

Primitive cumulates from a 2–3 Ma old gabbro massif exposed in the Kane Megamullion
(23° N, Mid-Atlantic Ridge) contain abundant clinopyroxene with high Mg#(86–91). Such …