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A gravelly sand deposit at 103 m depth on the summit region of Mount Palinuro, a seamount approximately 100 km off the Italian west coast, is made up of a mixture of manganese and iron micronodules with shallow water shell debris. The manganese-rich concretions have very high Mn:Fe ratios, are deficient in minor elements and todorokite is their principal manganese oxide phase. The iron-rich concretions are almost entirely composed of smectite. The high degree of partition of manganese and iron and the mineralogical variation suggest that the micronodules probably have a hydrothermal origin. The associated shell debris contains no fossil component showing that Mount Palinuro has been volcanically active in historically recent times. This places constraints on models for the tectonism of the southern Tyrrhenian Sea.

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Kidd, Robert B -  Armannson, H - 

Id.: 71228070

Idioma: inglés  - 

Versión: 1.0

Estado: Final

Tipo:  text/tab-separated-values, 48 data points - 

Palabras claveAtomic absorption spectrometry (AAS) -  Calcium -  Cobalt -  Copper -  Deposit type -  DEPTH, sediment/rock -  Description -  Event label -  Grab -  GRAB -  Identification -  Insoluble residue -  Iron -  JMSG -  46 -  47 -  Magnesium -  Manganese -  Mediterranean Sea -  Nickel -  NOAA and MMS Marine Minerals Geochemical Database -  NOAA -  MMS -  Zinc - 

Cobertura:  LATITUDE: 39.480000 * LONGITUDE: 14.825000 * DATE/TIME START: 1969-01-01T00:00:00 * DATE/TIME END: 1969-01-01T00:00:01 * MINIMUM DEPTH, sediment/rock: 0 m * MAXIMUM DEPTH, sediment/rock: 0 m - 

Tipo de recurso: Dataset  - 

Tipo de Interactividad: Expositivo

Nivel de Interactividad: muy bajo

Audiencia: Estudiante  -  Profesor  -  Autor  - 

Estructura: Atomic

Coste: no

Copyright: sí

: CC-BY: Creative Commons Attribution 3.0 Unported

Formatos:  text/tab-separated-values, 48 data points - 

Requerimientos técnicos:  Browser: Any - 

Relación: [IsBasedOn] Supplement to: Kidd, Robert B; Armannson, H (1979): Manganese and iron micronodules from a volcanic seamount in the Tyrrhenian Sea. Journal of the Geological Society, 136(1), 71-76, https://doi.org/10.1144/gsjgs.136.1.0071
[References] Grant, John Bruce; Moore, Carla J; Alameddin, George; Chen, Kuiying; Barton, Mark (1992): The NOAA and MMS Marine Minerals Geochemical Database. National Geophysical Data Center, NOAA, https://doi.org/10.7289/V52Z13FT
[References] Warnken, Robin R; Virden, William T; Moore, Carla J (1992): The NOAA and MMS Marine Minerals Bibliography. National Geophysical Data Center, NOAA, https://doi.org/10.7289/V53X84KN

Fecha de contribución: 19-may-2018



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