Abstract
During cruise 41 of the R/V Professor Logachev in 2019, two new ore fields were discovered within the Russian exploration area of the Mid-Atlantic Ridge. The Korallovoe ore field is located in the middle part of the rift valley ridge and lies on a gentle slope in the depth range of 2800–2850 m. The Molodezhnoe ore field is located approximately 5 km northeast of the Korallovoe field and lies on a less steeper section of the slope at depths of 3500–3550 m. The Korallovoe and Molodezhnoe fields are confined to an outcrop of a gabbro–peridotite massif on the western side of the Mid-Atlantic Rift valley. The total number of discovered ore fields in the Russian exploration area has increased to 14.
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REFERENCES
V. E. Bel’tenev, L. I. Lazareva, G. A. Cherkashev, et al., New hydrothermal ore fields on the Mid-Atlantic Ridge: Yubileinoe (20°09′ N) and Syurpriz (20°45.4′ N), Dokl. Ross. Akad. Nauk 476 (3), 305–310 (2017).
I. M. Poroshina and G. A. Cherkashev, “Morphotectonic structure and segmentation of the northern equatorial part of the Mid-Atlantic Ridge (Russian Exploration Region),” in World Ocean, Vol. 3: Solid Minerals and Gas Hydrates in the Ocean, Ed. by L. I. Lobkovskii and G. A. Cherkashev (Nauchnyi Mir, Moscow, 2018), pp. 60–75 [in Russian].
G. A. Cherkashev, T. Stepanova, S. Andreev, et al., “Ore objects within the Russian Exploration Region in the northern equatorial part of the Mid-Atlantic Ridge,” World Ocean, Vol. 3: Solid Minerals and Gas Hydrates in the Ocean, Ed. by L. I. Lobkovskii and G. A. Cherkashev (Nauchnyi Mir, Moscow, 2018), pp. 90–121 [in Russian].
G. A. Cherkashev, V. N. Ivanov, V. E. Bel’tenev, et al., Massive sulfide ores of the northern equatorial Mid-Atlantic Ridge, Oceanology 53 (5), 607–619 (2013).
J. Escartín, D. K. Smith, J. Cann, et al., “Central role of detachment faults in accretion of slow-spreading oceanic lithosphere,” Nature 455 (7214), 790–794 (2008).
Y. Fouquet, P. Cambon, J. Etoubleau, et al., “Geodiversity of hydrothermal processes along the Mid-Atlantic Ridge and ultramafic hosted mineralization: A new type of oceanic Cu-Zn-Co-Au volcanogenic massive sulfide deposit,” Geophys. Monogr. 188, 297–320 (2010).
J. Gage and P. Tyler, Deep-Sea Biology: A Natural History of Organisms at the Deep-Sea Floor (Cambridge Univ. Press, Cambridge, 1991).
C. R. German, S. Petersen, and M. D. Hannington, “Hydrothermal exploration of mid-ocean ridges: Where might the largest sulfide deposits be forming?,” Chem. Geol. 420, 114–126 (2016).
R. C. Searle and B. J. Murton, et al., “Life cycle of oceanic core complexes,” Earth Planet. Sci. Lett. 287, 333–344 (2009).
D. K. Smith, J. Escartín, H. Schouten, et al., “Fault rotation and core complex formation: Significant processes in seafloor formation at slow-spreading mid-ocean ridges (Mid-Atlantic Ridge, 13°–15° N),” Geochem., Geophys., Geosyst. 9 (3), 1–23 (2008).
D. K. Smith, J. R. Cann, and J. Escartín, “Widespread active detachment faulting and core complex formation near 13°N on the Mid-Atlantic Ridge,” Nature 442 (7101), 440–443 (2006).
ACKNOWLEDGMENTS
The authors are grateful to V.E. Beltenev and E.A. Popova (VNIIOkeangeologia) for valuable suggestions during preparation of the article.
Funding
Cruise 41 of the R/V Professor Logachev was carried out under the project “Exploration Works in the Vicinity of the Russian Exploration Area for Deep-Sea Polymetallic Sulfides in the Atlantic Ocean within Blocks 75, 78, 81, 84-93, 95-97, 99, and 100 with the Identification of Promising Blocks” (state contract no. 82/2019-YuL).
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Makoviz, A.M., Musatov, A.E., Sergeeva, I.A. et al. Discovery of New Hydrothermal Korallovoe (13°07′ N) and Molodezhnoe Ore Fields (13°09′ N) in the Mid-Atlantic Ridge. Oceanology 63, 109–118 (2023). https://doi.org/10.1134/S0001437023010071
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DOI: https://doi.org/10.1134/S0001437023010071