Fluid compositions and mineralogy of precipitates from Mid Atlantic Ridge hydrothermal vents at 4°48'S

deridge; from mantle to ocean: energy-, material- and life-cycles at spreading axes; m64/1; m64/1-114-rov; m64/1-123-rov; m64/1-124-gtv; m64/1-125-rov; m64/1-130-rov; m64/1-139-gtv; m64/1-141-rov; m64/1-146-rov; m68/1; m68/1-03-rov; m68/1-07-rov; m68/1-12-rov; m68/1-20-rov; marsued2; marsued3; mephisto; meteor (1986); mid-atlantic ridge at 4-11°s; mult; multiple investigations; remote operated vehicle; rov; shrimp_farm; sister_peak; tannenbaum; television-grab; tvg; two_boats