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Lein, Alla Yu; Bogdanov, Yury A; Maslennikov, Valery V; Syaoli, Li; Ul'yanova, Nina V; Maslennikova, S P; Ul'yanov, Alexander A (2010): Mineral and chemical compositions of hydrothermal ores and sediments from the Menez Gwen Hydrothermal Field, Mid-Atlantic Ridge [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.786059, Supplement to: Lein, AY et al. (2010): Sulfide minerals in the Menez Gwen nonmetallic hydrothermal field (Mid-Atlantic Ridge). Translated from Litologiya i Poleznye Iskopaemye, 2010, 4, 343-362, Lithology and Mineral Resources, 45(4), 305-323, https://doi.org/10.1134/S0024490210040012

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Abstract:
Mineralogy and geochemistry of sulfide-bearing rocks and ores discovered within the Menez Gwen Hydrothermal Field are studied. Samples were taken during Cruise 49 of R/V Akademik Mstislav Keldysh of the p.p. Shirshov Institute of Oceanology. Mineral composition of rocks and ores were studied by traditional methods of optical microscopy, scanning electron microscopy (CAMSCAN), and microprobe analysis (EPMA SX-50). Contents of trace elements were determined by laser ablation inductively coupled plasma - mass spectrometry (LA-ICP-MS). Zn-Cu ore comprises zonal sulfide chimney intergrowths. Numerous Se-rich copper ore fragments occur in volcanomictic layered gritstones and/or barite slabs. Mineral composition, zonality and association of trace elements in ore are typical of black smokers formed at the basalt base near the Azores Triple Junction in the MAR. Obtained results make it possible to reconstruct formation history of the Menez Gwen Hydrothermal Field into the high-temperature (Cu-Se association in ore clasts), medium-temperature (Zn-Cu-As association in ore), and recent (Ba-SiO2 association) stages.
Project(s):
Archive of Ocean Data (ARCOD)
Coverage:
Latitude: 37.840000 * Longitude: -31.520000
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
7 datasets

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Datasets listed in this publication series

  1. Lein, AY; Bogdanov, YA; Maslennikov, VV et al. (2010): (Table 1) Bulk chemical composition of samples from the Menez Gwen Hydrothermal Field. https://doi.org/10.1594/PANGAEA.786051
  2. Lein, AY; Bogdanov, YA; Maslennikov, VV et al. (2010): (Table 2) Mineral composition of sulfide-bearing sediments from the Menez Gwen Hydrothemal Field. https://doi.org/10.1594/PANGAEA.786052
  3. Lein, AY; Bogdanov, YA; Maslennikov, VV et al. (2010): (Table 3) Chemical composition of pyrite (marcasite) in samples from the Menez Gwen Hydrothermal Field. https://doi.org/10.1594/PANGAEA.786053
  4. Lein, AY; Bogdanov, YA; Maslennikov, VV et al. (2010): (Table 4) Chemical composition of sphalerite in ore from the Menez Gwen Hydrothermal Field. https://doi.org/10.1594/PANGAEA.786055
  5. Lein, AY; Bogdanov, YA; Maslennikov, VV et al. (2010): (Table 5) Chemical composition of chalcopyrite from the Menez Gwen Hydrothermal Field. https://doi.org/10.1594/PANGAEA.786056
  6. Lein, AY; Bogdanov, YA; Maslennikov, VV et al. (2010): (Table 6) Chemical composition of chalcopyrite in different ore zones of a black smoker chimney from the Menez Gwen Hydrothermal Field. https://doi.org/10.1594/PANGAEA.786057
  7. Lein, AY; Bogdanov, YA; Maslennikov, VV et al. (2010): (Table 8) Chemical composition of covellite in samples from the Menez Gwen Hydrothermal Field. https://doi.org/10.1594/PANGAEA.786058