PI Country:
USA
PIs:
Sinton, Detrick
Institution:
University of Hawaii, Woods Hole Oceanographic Institution
Ocean:
S. Pacific
Region:
Galapagos Rift
Jahr:
2000
Start Date:
2-Apr-00
End Date:
21-May-00 (1) determine how the compensation of the Galápagos swell is partitioned between variations in crustal thickness and mangle density by measuring crustal thickness along the swell and the degree of melting inferred from the chemistry of basalts
(2) determine if there is a threshold factor that controls the transition from an axial high to a rift valley
(3) determine how the extent of magmatic differentiation of ridge basalts relates to the presence or absence of a melt lens
(4) determine why the degree of partial melting appears to be lower near the hotspot
OBS refraction profiling multi-channel seismics and petrological dredging
Ship:
Maurice Ewing 
