|Seismic Investigation of Rainbow Hydrothermal Field and Its Tectono/Magmatic Setting, Mid-Atlantic Ridge 36° 14'N||Pablo Canales (WHOI)|
|Seismic Study of the Galicia S Detachment||Dale Sawyer (Rice)|
|Thermal and Tectonic Hypotheses for North Atlantic Seafloor Spreading Geometry Reorganization||Richard Hey (U of Hawaii)|
Seismic Investigation of the Rainbow Hydrothermal Field and its Tectono/Magmatic Setting at the Mid-Atlantic Ridge 36° 14’N . The proposed survey area is South of Azores on the Mid-Atlantic Ridge as shown in figure above . This project proposes to conduct a multi-scale seismic investigation of the tectono/magmatic setting of the Rainbow hydrothermal field, located within a non- transform discontinuity of the Mid-Atlantic Ridge (36°14’N). The main goals are (1) to determine the nature, geometry, and location of the heat source driving high- temperature circulation at Rainbow; (2) to determine the structure and origin of the ultramafic massif that hosts the hydrothermal field; and (3) to image large (detachment) and small-scale faults and investigate how they link to the heat source and control hydrothermal fluid focusing and discharge. More information.