Hydrothermal and Volcanic Activity Found on the Southern Mid-Atlantic Ridge

Details Hydrothermal and Volcanic Activity Found on the Southern Mid-Atlantic Ridge Hydrothermal and Volcanic Activity Found on the Southern Mid-Atlantic Ridge

May 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005eostr..86..209d&link_type=abstract

EOS Transactions, AGU, Volume 86, Issue 22, p. 209-212

Physics

Geophysics

6

Geochemistry: Mid-Oceanic Ridge Processes (3614, 8416), Geochemistry: Hydrothermal Systems (0450, 3017, 3616, 4832, 8135, 8424), Marine Geology And Geophysics: Seafloor Morphology, Geology, And Geophysics

Scientific paper

The process of plate accretion at mid-ocean ridges, once thought to occur in a relatively simple, magmatic system, has been shown in recent years to possess unexpected layers of complexity. Particularly at lower spreading rates, the magma supply to some or all of the ridge decreases, with the plate spreading motion being taken up instead on faults. The balance between these magmatic and tectonic processes governs such features as the topography, seismic activity, location of hydrothermal vents, and degree of chemical exchange between crust and ocean at spreading axes. It therefore has important implications for the hydrothermal marine biosphere and global chemical budgets.

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