TY - JOUR
T1 - Electron microscopy investigation of the genetic link between Fe oxides/oxyhydroxides and nontronite in submarine hydrothermal fields
AU - Cuadros, Javier
AU - Segvic, Branimir
AU - Dekov, Vesselin M.
AU - Michalski, Joseph R
AU - Baussa, David
PY - 2018/1
Y1 - 2018/1
N2 - The two major components most frequently found in sediments near submarine hydrothermal fields are Fe
oxides/oxyhydroxides and nontronite. Physico-chemical conditions in these environments vary from site to site and
even within sites as the type and intensity of the hydrothermal activity change. The investigation of Fe
oxides/oxyhydroxides and nontronite is helpful to constrain the specific conditions in which they formed or evolved,
and thus to recreate the history of hydrothermal vents. Microbial activity is also involved in the formation of these
mineral phases, which adds the interest of revealing processes at the interface of biological and inorganic phenomena.
We investigated sediments from ten seafloor hydrothermal fields, most of them Recent sediments. They are rich in Fe
oxides/oxyhydroxides and/or nontronite and/or Fe-talc. SEM analysis with energy-dispersive X-ray spectroscopy
revealed many morphological types, among which vermicular habits are common, with chemical composi
AB - The two major components most frequently found in sediments near submarine hydrothermal fields are Fe
oxides/oxyhydroxides and nontronite. Physico-chemical conditions in these environments vary from site to site and
even within sites as the type and intensity of the hydrothermal activity change. The investigation of Fe
oxides/oxyhydroxides and nontronite is helpful to constrain the specific conditions in which they formed or evolved,
and thus to recreate the history of hydrothermal vents. Microbial activity is also involved in the formation of these
mineral phases, which adds the interest of revealing processes at the interface of biological and inorganic phenomena.
We investigated sediments from ten seafloor hydrothermal fields, most of them Recent sediments. They are rich in Fe
oxides/oxyhydroxides and/or nontronite and/or Fe-talc. SEM analysis with energy-dispersive X-ray spectroscopy
revealed many morphological types, among which vermicular habits are common, with chemical composi
M3 - Article
SP - 247
EP - 259
JO - Marine Geology, Elsevier BV
JF - Marine Geology, Elsevier BV
ER -