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Rossi, P L; Bocchi, G; Adams, F (1980): (Table 2, page 110) Chemical analyses of Mn crust samples from the Lametino Seamount in the Tyrrhenian Sea. PANGAEA,, Supplement to: Rossi, PL et al. (1980): A manganese deposit from the South Tyrrhenian region. Oceanologica Acta, 3(1), 107-114, hdl:10013/epic.46892.d001

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Specimens dredged from within the summit of a volcanic seamount during an oceanographic cruise in the Eolian Island Arc (South Tyrrhenian Sea) where examined. Mineralization, which forms veins and pockets within a silty-clayey material, consists mainly of todorokite with scarce birnessite. The chemistry (Mn 48%, Fe 0.26 %, Ni 249 ppm, Co 223 ppm) and the mineralogy of the deposit are discussed; the findings, compared with data from some of the literature, suggest a hydrothermal genesis with extreme fractionations of Mn from Fe. A process explaining the anomalous Cu content (8 200 ppm) of the deposit is also suggested.
Source data set:
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,
Further details:
Warnken, Robin R; Virden, William T; Moore, Carla J (1992): The NOAA and MMS Marine Minerals Bibliography. National Geophysical Data Center, NOAA,
Latitude: 39.055030 * Longitude: 15.396130
Minimum DEPTH, sediment/rock: 0.0 m * Maximum DEPTH, sediment/rock: 0.0 m
BAN-T78L * Latitude: 39.055030 * Longitude: 15.396130 * Elevation: -862.0 m * Location: Lametino 1 Seamount * Campaign: T78 * Basis: Bannock * Method/Device: Dredge (DRG)
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1IdentificationIDRossi, P L
2DEPTH, sediment/rockDepthmRossi, P LGeocode
3ManganeseMn%Rossi, P LX-ray fluorescence (XRF)
4IronFe%Rossi, P LX-ray fluorescence (XRF)
5SodiumNa%Rossi, P LSpectrophotometry
6MagnesiumMg%Rossi, P LX-ray fluorescence (XRF)
7AluminiumAl%Rossi, P LX-ray fluorescence (XRF)
8SiliconSi%Rossi, P LX-ray fluorescence (XRF)
9PotassiumK%Rossi, P LSpectrophotometry
10CalciumCa%Rossi, P LX-ray fluorescence (XRF)
11TitaniumTi%Rossi, P LX-ray fluorescence (XRF)
12Loss on ignitionLOI%Rossi, P LX-ray fluorescence (XRF)Loss at ignition was computed for a dessication temperature of 1000 °C
13VanadiumVmg/kgRossi, P LX-ray fluorescence (XRF)
14CobaltComg/kgRossi, P LX-ray fluorescence (XRF)
15NickelNimg/kgRossi, P LX-ray fluorescence (XRF)
16CopperCumg/kgRossi, P LX-ray fluorescence (XRF)
17ZincZnmg/kgRossi, P LX-ray fluorescence (XRF)
18RubidiumRbmg/kgRossi, P LX-ray fluorescence (XRF)
19StrontiumSrmg/kgRossi, P LX-ray fluorescence (XRF)
20MolybdenumMomg/kgRossi, P LX-ray fluorescence (XRF)
21BariumBamg/kgRossi, P LGravimetric analysis
22Deposit typeDeposit type
24Substrate typeSubstrate
24 data points

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