In-situ chemical sensors for detecting and exploring ocean floor hydrothermal vents : report of a workshop : technical report
Citable URI
https://hdl.handle.net/1912/6449DOI
10.1575/1912/6449Keyword
Hydrothermal vents; Remote sensingAbstract
Researchers and engineers, from academia, government, and
industry, met and discussed the feasibility of using state-of-the-art
laboratory technology for in-situ chemical measurements in the deep
ocean, in and around active submarine hydrothermal systems. The concept
of an autonomous benthic explorer (SENTRY) was presented to illustrate
some of the constraints which must be kept in mind when adapting
laboratory analytical tools to the deep ocean. A concensus was reached
that some existing technologies either are being, or can be, adapted for
in-situ measurement, in the near future, at reasonable cost . For many
analytical techniques, minimal basic research will be required , and
laboratory and in-situ testing represent the bulk of the work to be
performed. A selection of analytical techniques appear particularly
ready to undergo testing and transformations for in-situ measurements,
including: electroplating, vol tame try, potentiometric glass electrodes,
and fiber optic technologies. Other techniques, such as in-situ Mass
Spectrometry, do not appear to meet the criterias of technological readiness
for in-situ deployment . Some technologies already being utilized or
under development for use in the deep ocean include, for example: CO2,
O2, H2, H2S, CH4 sensors, voltametry for the determination of
sulfur chemical speciation, fiber optic sensors for pH determination, and
automated chemical microlaboratories for a wide variety of applications.
These techniques, however, require further research for long-term deployment
and their ability to perform at high temperature, as encountered
around submarine active hydrothermal systems.
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Suggested Citation
Technical Report: Hennet, Remy J-C., Whelan, Jean K., "In-situ chemical sensors for detecting and exploring ocean floor hydrothermal vents : report of a workshop : technical report", 1988-11, DOI:10.1575/1912/6449, https://hdl.handle.net/1912/6449Related items
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