ABSTRACT
A new multi-parameter chemical sensor method to study the active hydrothermal mound of the seafloor as well as non-active massive sulfide mound was proposed. Investigation of active hydrothermal mound as well as non-active massive sulfide mound. The survey methods and instruments were diversified and convenient to study the active hydrothermal field. The chapter describes a new multi-parameter chemical sensor method to study the seafloor active hydrothermal mound as well as non-active massive sulfide mound. The H2S and Eh sensors were integrated in one sensor tube and utilized for observing and surveying hydrothermal diffusion flow field surrounding the seafloor active hydrothermal mound as well as non-active massive sulfide mound. The known Trans-Atlantic Geotraverse area was also investigated for comparing and evidencing the ready instruments, which is helpful to find a new method to survey the massive sulfide mound, and the chemical sensor method can provide the similar result as the Transient ElectroMagnetic and Electric Self-potential methods do.
