『Abstract
Experiments devoted to interaction between the material of ferromanganese
crusts (FMC) of Pacific seamounts and hydrogen sulfide at temperatures
ranging from 100 to 600℃ unraveled the formation of pyrite microcrystals
at 100℃. Upon heating, the pyrite acquires more perfect crystalline
from at 200℃ and breaks down at 600℃. The formation and breakdown
of magnetite take place according to the same similar scenario.
At 200℃, one can see the formation of lumpy aggregates of the
slightly crystallized alabandine transformed at 600℃ into lamellar
crystals, which accumulate the whole Mn and part of Fe hosted
in rock. At maximal temperature, platinum and gold are crystallized
selectively as lamellar particles and native sulfur is accumulated.
The composition of these newly formed minerals is incomparatible
with the mineralogy of natural FMCs. This is inconsistent with
the assumption about the possible influence of hypothetic hydrosulfuric
emanations on the formation of minerals mentioned above. However,
experimental results demonstrate an extremely high sorption capacity
of FMCs relative to hydrogen sulfide, suggesting great prospects
of the practical application of FMCs for the industrial and ecological
purposes.』
(Introduction)
Materials and methods
Results
Discussion
Conclusions
Acknowledgments
References