Chemical analyses of Fe-Mn coatings separated from the margins of basaltic rocks from Transform Fault 'A' and from the the Rift Valley near 36°50'N in the Mid-Atlantic Ridge
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| Sprache: | en |
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PANGAEA
2023
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| author | Hoffert, Michel Perseil, E A Hekinian, Roger Choukroune, P Needham, H D Francheteau, Jean Le Pichon, Xavier |
| author_facet | Hoffert, Michel Perseil, E A Hekinian, Roger Choukroune, P Needham, H D Francheteau, Jean Le Pichon, Xavier |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | In order to evaluate the possible influence of hydrothermal activity on Fe-Mn coatings found on the surfaces of basaltic rocks in the median part of Transform Fault "A", a few samples collected in different structural settings less than 2 km away from the hydrothermal fields. They were analysed along with samples further West in the Transform Valley (sample ARP 74-13-23) and from the top of the deepestescarpment of the inner West wall of the Rift Valley near 36'50'N (sample cyp 74-31-40). Chemical analyses were done by arc spectrometry using an ARL quantometer were made at the University of Strasbourg. This method consists of melting the sample in a mixture of lithium tetraborate and then introducing the melt into in a glycolated solvent prior analysis. Trace elements were determined using graphite discs . Na and K were determined by emission spectrometry (precision of +- 2.0%). |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_961653 |
| institution | PANGAEA |
| language | en |
| publishDate | 2023 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Chemical analyses of Fe-Mn coatings separated from the margins of basaltic rocks from Transform Fault 'A' and from the the Rift Valley near 36°50'N in the Mid-Atlantic Ridge Hoffert, Michel Perseil, E A Hekinian, Roger Choukroune, P Needham, H D Francheteau, Jean Le Pichon, Xavier Aluminium oxide; Archimède (Submersible); Arc spectrometry; ARP-74-13-23; Barium; Boron; Calcium oxide; Chromium; Cobalt; Copper; CY-74-19-7; CY-74-22-10; CY-74-22-9; CY-74-23-11; CY-74-31-40; Deposit type; Elevation of event; Emission spectrography; Event label; FAMOUS_06-74; FAMOUS_07-74; FAMOUS74; Gallium; Geochemistry; Grab; GRAB; GRAB_subCyana; Grab, on Cyana [Submersible]; Identification; Iron oxide, Fe2O3; Latitude of event; Le Noroit; Longitude of event; Loss on ignition; Magnesium oxide; manganese micronodule; manganese nodule; Manganous manganic oxide; Mid-Atlantic Ridge; Nickel; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; ocean; Optical emission spectrography; Potassium oxide; Sediment; Silicon dioxide; Sodium oxide; Strontium; Titanium(II) oxide; Vanadium; Wet chemistry; Zinc In order to evaluate the possible influence of hydrothermal activity on Fe-Mn coatings found on the surfaces of basaltic rocks in the median part of Transform Fault "A", a few samples collected in different structural settings less than 2 km away from the hydrothermal fields. They were analysed along with samples further West in the Transform Valley (sample ARP 74-13-23) and from the top of the deepestescarpment of the inner West wall of the Rift Valley near 36'50'N (sample cyp 74-31-40). Chemical analyses were done by arc spectrometry using an ARL quantometer were made at the University of Strasbourg. This method consists of melting the sample in a mixture of lithium tetraborate and then introducing the melt into in a glycolated solvent prior analysis. Trace elements were determined using graphite discs . Na and K were determined by emission spectrometry (precision of +- 2.0%). |
| title | Chemical analyses of Fe-Mn coatings separated from the margins of basaltic rocks from Transform Fault 'A' and from the the Rift Valley near 36°50'N in the Mid-Atlantic Ridge |
| topic | Aluminium oxide; Archimède (Submersible); Arc spectrometry; ARP-74-13-23; Barium; Boron; Calcium oxide; Chromium; Cobalt; Copper; CY-74-19-7; CY-74-22-10; CY-74-22-9; CY-74-23-11; CY-74-31-40; Deposit type; Elevation of event; Emission spectrography; Event label; FAMOUS_06-74; FAMOUS_07-74; FAMOUS74; Gallium; Geochemistry; Grab; GRAB; GRAB_subCyana; Grab, on Cyana [Submersible]; Identification; Iron oxide, Fe2O3; Latitude of event; Le Noroit; Longitude of event; Loss on ignition; Magnesium oxide; manganese micronodule; manganese nodule; Manganous manganic oxide; Mid-Atlantic Ridge; Nickel; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; ocean; Optical emission spectrography; Potassium oxide; Sediment; Silicon dioxide; Sodium oxide; Strontium; Titanium(II) oxide; Vanadium; Wet chemistry; Zinc |
| url | https://doi.org/10.1594/PANGAEA.961653 |