Eolo Seamount, Aeolian Arc seamounts, Southern Tyrrhenian Sea, Tyrrhenian Sea, Italyi
| Regional Level Types | |
|---|---|
| Eolo Seamount | Seamount |
| Aeolian Arc seamounts | Group of Seamounts |
| Southern Tyrrhenian Sea | Sea |
| Tyrrhenian Sea | Sea |
| Italy | Country |
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Latitude & Longitude (WGS84):
38° 33' 47'' North , 14° 9' 31'' East
Latitude & Longitude (decimal):
Locality type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Alicudi Porto | 105 (2014) | 17.6km |
| Pecorini A Mare | 104 (2014) | 35.4km |
| Filicudi Porto | 307 (2014) | 36.2km |
Name(s) in local language(s):
Monte submarino Eolo, Monti submarini dell'Arco Eoliano, Mar Tirreno, Italia
Located in the Southern Tyrrhenian Sea, it is part of the western sector of the Aeolian Arc together with: Glauco, Sisifo, and Enarete seamounts; Alicudi and Filicudi islands.
Base depth is 1,360 -1,370 metres and peak depth of 640-650 metres.
A sediment core containing a yellowish-green clay bed was recovered from an area of extensive hydrothermal deposition at the SE slope of the Eolo Seamount. The clay bed is composed of pure nontronite. Scanning electron microscopy investigation revealed that the nontronite is composed of aggregates of lepispheres and tube-like filaments, which are indicative of bacteria assisted precipitation. Bacteria inhabiting this hydrothermal site likely acted as reactive geochemical surfaces on which poorly-ordered hydrothermal Fe-oxyhydroxides and silica precipitated. Upon aging, the interactions of these primary hydrothermal precipitates coating bacterial filaments and cell walls likely led to the formation of nontronite (Dekov et al., 2007).
A sediment core taken from the south–east slope of the Eolo Seamount is composed of alternating red-brown and light-brown to bluish-grey layers with signs of re-deposition in the middle-upper section. The red-brown layers are Fe-rich metalliferous sediments formed as a result of low-temperature (∼ 77 °C) hydrothermal discharge, whereas the bluish-grey layers most probably originated from background sedimentation of Al-rich detrital material. The metalliferous layers are composed mainly of Si-rich goethite containing some Al (Dekov et al., 2009).
Regions containing this locality
| African Plate | Tectonic Plate |
Select Mineral List Type
Standard Detailed Strunz Dana Chemical ElementsDetailed Mineral List:
| ⓘ Goethite Formula: α-Fe3+O(OH) Reference: Dekov, V.M., Kamenov, G.D., Savelli, C., Stummeyer, J., Thiry, M., Shanks, W.C., Willingham, A.L., Boycheva, T.B., Rochette, P., Kuzmann, E., Fortin, D., and Vértes, A. (2009) Metalliferous sediments from Eolo Seamount (Tyrrhenian Sea) Hydrothermal deposition and re-deposition in a zone of oxygen depletion. Chemical Geology, 261, 317-363. |
| ⓘ Nontronite Formula: Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O Reference: Dekov, V.M., Kamenov, G.D., Stummeyer, J., Thiry, M., Savelli, C., Shanks, W.C., Fortin, D., Kuzmann, E., and Vértes, A. (2007) Hydrothermal nontronite formation at Eolo Seamount (Aeolian volcanic arc, Tyrrhenian Sea). Chemical Geology, 245, 103–119. |
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Goethite | 4.00. | α-Fe3+O(OH) |
| Group 9 - Silicates | |||
| ⓘ | Nontronite | 9.EC.40 | Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O |
List of minerals arranged by Dana 8th Edition classification
| Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL | |||
|---|---|---|---|
| XO(OH) | |||
| ⓘ | Goethite | 6.1.1.2 | α-Fe3+O(OH) |
| Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings | |||
| Sheets of 6-membered rings with 2:1 clays | |||
| ⓘ | Nontronite | 71.3.1a.3 | Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Nontronite | Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O |
| H | ⓘ Goethite | α-Fe3+O(OH) |
| O | Oxygen | |
| O | ⓘ Nontronite | Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O |
| O | ⓘ Goethite | α-Fe3+O(OH) |
| Na | Sodium | |
| Na | ⓘ Nontronite | Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O |
| Al | Aluminium | |
| Al | ⓘ Nontronite | Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O |
| Si | Silicon | |
| Si | ⓘ Nontronite | Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O |
| Fe | Iron | |
| Fe | ⓘ Nontronite | Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O |
| Fe | ⓘ Goethite | α-Fe3+O(OH) |
Regional Geology
This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.
Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org
Ma ID: 3159158 | submarine continental crust Age: Anthropocene ( Ma) Reference: Asch, K. The 1:5M International Geological Map of Europe and Adjacent Areas: Development and Implementation of a GIS-enabled Concept. Geologisches Jahrbuch, SA 3. [147] |
Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License
References
Sort by
Year (asc) Year (desc) Author (A-Z) Author (Z-A)Dekov, V.M., Kamenov, G.D., Stummeyer, J., Thiry, M., Savelli, C., Shanks, W.C., Fortin, D., Kuzmann, E., and Vértes, A. (2007) Hydrothermal nontronite formation at Eolo Seamount (Aeolian volcanic arc, Tyrrhenian Sea). Chemical Geology, 245, 103–119.
Dekov, V.M., Kamenov, G.D., Savelli, C., Stummeyer, J., Thiry, M., Shanks, W.C., Willingham, A.L., Boycheva, T.B., Rochette, P., Kuzmann, E., Fortin, D., and Vértes, A. (2009) Metalliferous sediments from Eolo Seamount (Tyrrhenian Sea) Hydrothermal deposition and re-deposition in a zone of oxygen depletion. Chemical Geology, 261, 317-363.
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