Crustal fissuring and its relationship to magmatic and hydrothermal processes on the East Pacific Rise crest (9°12′ to 54′N)

Abstract
The deep‐towed Argo I optical/acoustical vehicle and a geographic information system (GIS) have been used to establish the abundance, widths, and spatial distribution of fissures, as well as the relative age distribution of lavas along the narrow (Haymon et al. [1991] in which individual fourth‐order segments are in different phases of a volcanic‐hydrothermal‐tectonic cycle.