Hoffert Michel Perseil E A Hekinian Roger Choukroune P Needham H D Francheteau Jean Le Pichon Xavier 2023 Chemical analyses of hydrothermal deposits and associated material from Transform fault 'A' on the Mid-Atlantic Ridge, FAMOUS area dataset https://doi.org/10.1594/PANGAEA.961652 2023-08-21T05:22:55 Sampled hydrothermal deposits from Transform fault 'A' on the Mid-Atlantic Ridge have been classified into two main categories according to the relative proportion of the black Fe-Mn concretions with respect to the clay-rich fraction: clay-rich hydrothermal material and black Fe-Mn concretions (nodules). These materials have been analysed for their chemical composition 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%). Choukroune P Francheteau Jean Le Pichon Xavier 1978 In situ structural observations along Transform Fault A in the FAMOUS area, Mid-Atlantic Ridge journal article Geological Society of America Bulletin 89(7) https://doi.org/10.1130/0016-7606(1978)89%3C1013:ISSOAT%3E2.0.CO;2 1013 Hoffert M Perseil E A Hekinian Roger Choukroune P Needham H D Francheteau Jean Le Pichon Xavier 1978 Hydrothermal deposits sampled by diving saucer in transform fault "A" near 37°N on the Mid-Atlantic Ridge, FAMOUS Area journal article Oceanologica Acta 1(1) 699-712 https://download.pangaea.de/reference/119679/attachments/publication-5216.pdf Hoffert Michel Perseil E A Hekinian Roger Choukroune P Needham H D Francheteau Jean Le Pichon Xavier 2023 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 dataset https://doi.org/10.1594/PANGAEA.961653 Grant John Bruce Moore Carla J carla.j.moore@noaa.gov 0000-0002-2610-8648 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 Warnken Robin R rrw@luna.ngdc.noaa.gov Virden William T Moore Carla J carla.j.moore@noaa.gov 0000-0002-2610-8648 1992 The NOAA and MMS Marine Minerals Bibliography National Geophysical Data Center, NOAA https://doi.org/10.7289/V53X84KN -33.06700000000001 -33.061500000000024 36.940833 36.945 -33.06363049999999 36.942125 1974-07-24T00:00:00 1974-08-03T00:00:00 -2695.0 -2690.0 point NOAA-MMS NOAA and MMS Marine Minerals Geochemical Database https://wiki.pangaea.de/wiki/NOAA-MMS CY-74-23-12 36.941 -33.0615 Mid-Atlantic Ridge -2695.0 1974-07-24T00:00:00 FAMOUS_06-74 FAMOUS_06-74 FAMOUS74 FAMOUS74 https://doi.org/10.17600/74005811 1974-06-22T00:00:00 1974-06-22 1974-09-06T00:00:00 1974-09-06 Le Noroit Francheteau, Jean Francheteau, Jean CYANA dives in association with ARCHIMEDE on the ship "Marcel LE BIHAN" https://en.wikipedia.org/wiki/Project_FAMOUS Le Noroit Grab, on Cyana [Submersible] GRAB_subCyana CY-74-26-14 36.945 -33.067 Mid Atlantic Ridge -2690.0 1974-08-01T00:00:00 FAMOUS_06-74 FAMOUS_06-74 FAMOUS74 FAMOUS74 https://doi.org/10.17600/74005811 1974-06-22T00:00:00 1974-06-22 1974-09-06T00:00:00 1974-09-06 Le Noroit Francheteau, Jean Francheteau, Jean CYANA dives in association with ARCHIMEDE on the ship "Marcel LE BIHAN" https://en.wikipedia.org/wiki/Project_FAMOUS Le Noroit Grab, on Cyana [Submersible] GRAB_subCyana CY-74-26-15 36.941667 -33.062667 Mid-Atlantic Ridge -2690.0 1974-08-03T00:00:00 FAMOUS_06-74 FAMOUS_06-74 FAMOUS74 FAMOUS74 https://doi.org/10.17600/74005811 1974-06-22T00:00:00 1974-06-22 1974-09-06T00:00:00 1974-09-06 Le Noroit Francheteau, Jean Francheteau, Jean CYANA dives in association with ARCHIMEDE on the ship "Marcel LE BIHAN" https://en.wikipedia.org/wiki/Project_FAMOUS Le Noroit Grab, on Cyana [Submersible] GRAB_subCyana CY-74-26-16 36.940833 -33.063355 Mid-Atlantic Ridge -2690.0 1974-08-03T00:00:00 FAMOUS_06-74 FAMOUS_06-74 FAMOUS74 FAMOUS74 https://doi.org/10.17600/74005811 1974-06-22T00:00:00 1974-06-22 1974-09-06T00:00:00 1974-09-06 Le Noroit Francheteau, Jean Francheteau, Jean CYANA dives in association with ARCHIMEDE on the ship "Marcel LE BIHAN" https://en.wikipedia.org/wiki/Project_FAMOUS Le Noroit Grab, on Cyana [Submersible] GRAB_subCyana 270 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ From 1983 until 1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions. At the time it was the most extended data compilation on ferromanganese deposits world wide. Initially published in a proprietary format incompatible with present day standards it was jointly decided by AWI and NOAA to transcribe this legacy data into PANGAEA. This transfer is augmented by a careful checking of the original sources when available and the encoding of ancillary information (sample description, method of analysis...) not present in the NOAA-MMS database. This dataset represents the digitized Table 2, pp. 706 of the related publication. Event label Event Event Latitude of event Latitude Latitude Longitude of event Longitude Longitude Elevation of event Elevation m Elevation [m] Identification ID Hoffert Michel ID Sample type Samp type Hoffert Michel Samp type Silicon dioxide SiO2 % https://en.wikipedia.org/wiki/Silicon_dioxide silicon dioxide http://purl.obolibrary.org/obo/CHEBI_30563 Dimensionless Ratio ψ Arc spectrometry Hoffert Michel SiO2 [%] Aluminium oxide Al2O3 % aluminium oxide http://purl.obolibrary.org/obo/CHEBI_30187 Dimensionless Ratio ψ Arc spectrometry Hoffert Michel Al2O3 [%] Iron oxide, Fe2O3 Fe2O3 % iron oxide http://purl.obolibrary.org/obo/CHEBI_50816 ferric oxide Fe2O3 Dimensionless Ratio ψ Arc spectrometry Hoffert Michel Fe2O3 [%] Manganous manganic oxide Mn3O4 % Dimensionless Ratio ψ Arc spectrometry Hoffert Michel Mn3O4 [%] Magnesium oxide MgO % magnesium oxide http://purl.obolibrary.org/obo/CHEBI_31794 Dimensionless Ratio ψ Arc spectrometry Hoffert Michel MgO [%] Calcium oxide CaO % https://en.wikipedia.org/wiki/Calcium_oxide calcium oxide http://purl.obolibrary.org/obo/CHEBI_31344 Dimensionless Ratio ψ Arc spectrometry Hoffert Michel CaO [%] Sodium oxide Na2O % sodium oxide Na2O https://pubchem.ncbi.nlm.nih.gov/compound/73971 Dimensionless Ratio ψ Optical emission spectrography Hoffert Michel Na2O [%] Potassium oxide K2O % potassium oxide http://purl.obolibrary.org/obo/CHEBI_88321 Dimensionless Ratio ψ Optical emission spectrography Hoffert Michel K2O [%] Titanium(II) oxide TiO % titanium(II) oxide http://purl.obolibrary.org/obo/CHEBI_134455 Optical emission spectrography Hoffert Michel TiO [%] Loss on ignition LOI % http://en.wikipedia.org/wiki/Loss_on_ignition loss Dimensionless Ratio ψ Wet chemistry Hoffert Michel at 1000°C LOI [%] Strontium Sr mg/kg strontium Optical emission spectrography Hoffert Michel Sr [mg/kg] Barium Ba mg/kg barium Optical emission spectrography Hoffert Michel Ba [mg/kg] Vanadium V mg/kg vanadium Optical emission spectrography Hoffert Michel V [mg/kg] Nickel Ni mg/kg nickel Optical emission spectrography Hoffert Michel Ni [mg/kg] Cobalt Co mg/kg cobalt Optical emission spectrography Hoffert Michel Co [mg/kg] Chromium Cr mg/kg chromium Optical emission spectrography Hoffert Michel Cr [mg/kg] Boron B mg/kg Optical emission spectrography Hoffert Michel B [mg/kg] Zinc Zn mg/kg zinc Optical emission spectrography Hoffert Michel Zn [mg/kg] Gallium Ga mg/kg gallium Optical emission spectrography Hoffert Michel Ga [mg/kg] Copper Cu mg/kg copper Optical emission spectrography Hoffert Michel Cu [mg/kg] Description Description description Hoffert Michel Description CurationLevelC Enhanced curation https://wiki.pangaea.de/wiki/Curation_levels citable Geochemistry manganese micronodule manganese nodule ocean Sediment author100749 author150 author154 author21391 author43581 author44001 author53898 author53899 author53900 author53901 author53916 author56225 author568 author61102 author61103 basis36 campaign3375188 campaign44718 curlevel30 event2843451 event3073203 event3073204 event3073205 geocode1599 geocode1600 geocode1601 geocode8128 journal16686 journal6059 license21 method15323 method15832 method15834 method6629 param1825 param2208 param28518 param522809 param675 param676 param702 param704 param705 param7055 param7056 param7059 param707 param708 param81 param811 param8136 param817 param82 param84 param85 param86 param87 pi43581 project4198 ref119678 ref119679 ref67195 ref67263 refds961653 term1073224 term1073388 term1074034 term1074050 term1074058 term20472 term20564 term2608603 term2632269 term267 term40559 term40561 term40663 term40710 term40802 term40848 term40966 term41047 term41084 term41092 term41156 term43794 term44327 term47305 term49257 term49379 term70603 term70672 topotype2