Mafic–Ultramafic Complexes of the Stalemate Ridge, NW Pacific, and the Shirshov Rise, Bering Sea: Geochemical Similarities and Differences

Abstract

This study was focused on the estimation and geodynamic interpretation of the contents and character of distribution of highly siderophile and chalcophile elements in rock samples from mafic–ultramafic assemblage sampled at the Stalemate Ridge in the NW Pacific and the Shirshov Rise in the Bering Sea. All of the samples were collected during Cruise 249 of German R/V Sonne. These mafic–ultramafic rock complexes situated at the opposite sides of Aleutian Island Arc may carry important information on the structure and composition of the old Pacific lithosphere subducted under Aleutian Arc, as well as on the products of suprasubduction magmatism in back-arc basin of the Bering Sea. The newly acquired data presented in this paper indicate that the real structure of the northwestern segment of the Stalemate Ridge is inconsistent with the currently widely assumed model that the local lithosphere corresponds to the canonic oceanic type. The lithosphere in the area includes mafic–ultramafic complexes whose origin was not related to mantle reservoirs of the oceanic type (e.g., DM). At the same time, the tectonic remobilization of the lithosphere in this part of the NW Pacific suggested in (Lonsdale, 1988) is confirmed by results of dredging at sites on the northwestern flank of the Stalemate Ridge. Vertical tectonic motions in this region combined lithospheric blocks that might have been formed in contrasting geodynamic settings. These lithospheric blocks may have included fragments of magmatic complexes formed by suprasubduction magmatism and were identical in the their isotope geochemistry (87Sr/86Sr, 143SNd/144Nd) to the mafic–ultramafic assemblage occurring in the Shirshov Rise, which lies immediately north of the northwestern Stalemate Ridge segment and likely is a relic of a backarc spreading center.

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Notes

  1. 1.

    Here and below, the numbers of dredging sites during Cruises 249 and 201 of the R/V Sonne are denoted as So249-DR45,47,112 or So201-DR37, and the sample numbers are usually, for example, DR45-1 (i.e., sample DR45-1 is from dredging Site So249-DR45).

REFERENCES

  1. 1

    Alt, J.C., Shanks, W.C.III., Bach, W., et al., Hydrothermal alteration and microbial sulfate reduction in peridotite and gabbro exposed by detachment faulting at the Mid-Atlantic Ridge, 15°–20° N (ODP leg 209): a sulfur and oxygen isotope study, Geochem., Geophys., Geosyst., 2007, vol. 8, no. 8. https://doi.org/10.1029/2007GC001617

  2. 2

    Ashley, P., Craw, D., Mackenzie, D., et al., Mafic and ultramafic rocks, and platinum mineralisation potential, in the Longwood Range, Southland, New Zealand, New Zeal. J. Geol. Geophys., 2012, vol. 55, no. 1. https://doi.org/10.1080/00288306.2011.623302

  3. 3

    Barnes, S.-J. and Lightfoot, M.P., Formation of magmatic nickel sulfide ore deposits and processes affecting their copper and platinum group element contents, Econ. Geol., 2005, vol. 100, pp. 179–213.

    Article  Google Scholar 

  4. 4

    Barnes, S.-J. and Maier, W.D., The fractionation of Ni, Cu and the noble metals in silicate and sulfide liquids, Dynamic Processes in Magmatic Ore Deposits and their Application in Mineral Exploration, Keays, R.R., Lesher, C.M., Lightfoot, P.C., and Farrow, C.E.G., Eds., Geol. Ass. Canada. Short Course Notes, 1999, vol. 13, pp. 69–106.

  5. 5

    Ciazela J., Koepke J., Dick H.J.B. et al. Sulfide enrichment at an oceanic crust-mantle transition zone: Kane Megamullion (23° N, MAR), Woods Hole Open Access Server. Geology and Geophysics. Preprint. 2018; https://doi.org/10.1016/j.gca.2018.03.027, https://hdl.handle.net/1912/10383.

  6. 6

    Delacour, A., Fruh-Green, G.L., Frank, M., et al., Sr- and Nd-isotope geochemistry of the Atlantis massif (30°N, MAR): implications for fluid fluxes and lithospheric heterogeneity, Chem. Geol., 2008, vol. 254, pp. 19–35.

    Article  Google Scholar 

  7. 7

    Faure, G., Principles of Isotope Geology, New York: John Wiley & Sons, 1986.

    Google Scholar 

  8. 8

    Forrest, A., Kelley, K.A., and Schilling, J.-G., S, Se and Te contents of basalts from the Reykjanes Ridge and SW Iceland rift zone, Interdisciplinary Earth Data Alliance (IEDA), 2017. https://doi.org/10.1594/IEDA/100700

    Google Scholar 

  9. 9

    Garuti, G., Fershtater, G., Bea, F., et al., Platinum-group elements as petrological indicators in mafic-ultramafic complexes of the central and southern Ural preliminary results, Tectonophysics, 1997, vol. 276, pp. 181–194.

    Article  Google Scholar 

  10. 10

    Holwell, D.A., Florentini, M., McDonald, I., et al., A metasomatized lithospheric mantle control on the metallogenic signature of post-subduction magmatism, Nature Commun., 2019, vol. 10. https://doi.org/10.1038/s41467-019-11065-4

  11. 11

    Keller, N.S., Arculus, R.J., Hermann, J., and Richards, S., Submarine back-arc lava with arc signature: Fonualei spreading center, northeast Lau Basin, Tonga, J. Geophys. Res., 2008, vol. 113, No. B08SO7. https://doi.org/10.1029/2007JB005451

    Article  Google Scholar 

  12. 12

    Klein, F. and Bach, W., Fe–Ni–Co–O–S phase relations in peridotite-seawater interactions, J. Petrol., 2009, vol. 50, no. 1, pp. 37–59. https://doi.org/10.1093/petrology/egn071

    Article  Google Scholar 

  13. 13

    Kostitsyn, Yu.A., Terrestrial and chondritic Sm-Nd and Lu-Hf isotopic systems: are they identical? Petrology, 2004, vol. 12, no. 5, pp. 397–411.

    Google Scholar 

  14. 14

    Krasnova, E.A., Portnyagin, M.V., Silantyev, S.A., et al., Two-stage evolution of mantle peridotites from the Stalemate Fracture Zone, Northwestern Pacific, Geochem. Int., 2013, vol. 51, no. 9, pp. 683–695.

    Article  Google Scholar 

  15. 15

    Kubrakova. I.V., Nabiullina. S.N., and Tyutyunnik. O.A., Au and PGE determination in geochemical materials: experience in applying spectrometric techniques, Geochem. Int., 2020, vol. 65, no. 4, pp. 377–390.

  16. 16

    Kubrakova, I.V., Tyutyunnik, O.A., Silantyev, S.A., Mobility of dissolved palladium and platinum species during the water–rock interaction in a chloride environment: modeling of PGE behavior during interaction between oceanic serpentinites and seawater derivatives, Geochem. Int., 2019, vol. 57, no. 3, pp. 282–289. https://doi.org/10.1134/S0016702919030078

    Article  Google Scholar 

  17. 17

    Li, Y.-B., Kimura, J.-I., Machida, S., et al., High-Mg adakite and low-Ca boninite from a Bonin fore-arc seamount: implications for the reaction between slab melts and depleted mantle, J. Petrol., 2013, vol. 54, no. 6, pp. 1149–1175.

    Article  Google Scholar 

  18. 18

    Lonsdale, P., Paleogene history of the Kula Plate: offshore evidence and onshore implications, Geol. Soc. Am. Bull., 1988, vol. 100, pp. 733–754.

    Article  Google Scholar 

  19. 19

    Malvoisin, B., Mass transfer in the oceanic lithosphere: serpentinization is not isochemical, Earth Planet. Sci. Lett., 2015, vol. 430, pp. 75–85.

    Article  Google Scholar 

  20. 20

    Mironov, N.L. and Portnyagin, M.V., Coupling of redox conditions of mantle melting and copper and sulfur contents in primary magmas of the Tolbachinsky Dol (Kamchatka) and Juan de Fuca Ridge (Pacific Ocean), Petrology, 2018, vol. 26, no. 2, pp. 145–166.

    Article  Google Scholar 

  21. 21

    Plank, P. and Langmuir, C.H., The chemical composition of subducting sediment and its consequences for the crust and mantle, Chem. Geol., 1998, vol. 145, pp. 325–394.

    Article  Google Scholar 

  22. 22

    Regelous, M., Hofmann, A.W., Abouchami, W., and Galer, S.J.G., Geochemistry of lavas from the Emperor Seamounts, and the geochemical evolution of Hawaiian magmatism from 85 to 42 Ma, J. Petrol., 2003, vol. 44, no. 1, pp. 113–140.

    Article  Google Scholar 

  23. 23

    Salters, V.J.M. and Stracke, A., Composition of the depleted mantle, Geochem. Geophys. Geosyst., 2004, vol. 5, no. 5. https://doi.org/10.1029/2003GC000597

  24. 24

    Silantyev, S.A., Baranov, B.V., and Kolesov, G.M., Geochemistry and petrology of the amphibolites of the Shirshov Rise, Bering Sea, Geokhimiya, 1985, no. 12, pp. 1694-01705.

  25. 25

    Silantyev, S.A., Novoselov, A.A., Krasnova, E.A., et al., Silicification of peridotites at the Stalemate Fracture Zone (Northwestern Pacific): reconstruction of the conditions of low-temperature weathering and tectonic interpretation, Petrology, 2012,vol. 20, no. 1, pp. 21–39.

    Article  Google Scholar 

  26. 26

    Silantyev, S.A., Kubrakova I.V., and Tyutyunnik, O.A., Distribution of siderophile and chalcophile elements in serpentinites of the oceanic lithosphere as an insight into the magmatic and crustal evolution of mantle peridotites, Geochem. Int., 2016, vol. 54, no. 12, pp. 1019–1034.

    Article  Google Scholar 

  27. 27

    Silantyev, S.A., Kubrakova, I.V., Portnyagin, M.V., et al., Ultramafic–mafic assemblage of plutonic rocks and hornblende schists of Shirshov Rise, Bering Sea, and Stalemate Ridge, Northwest Pacific: geodynamic interpretations of geochemical data, Petrology, 2018, no. 5, pp. 492–515.

  28. 28

    Silantyev, S.A., Kostitsyn, Yu.A., Shabykova, V.V., et al., Geodynamic nature of magmatic sources in the Northwest Pacific: an interpretation of data on the Sr and Nd isotope composition of rocks dredged at the Stalemate Ridge, Ingenstrem Depression, and Shirshov Rise, Petrologiya, 2019, no. 6, pp. 655—674.

  29. 29

    Valetich, M.J., Mavrogenes, J., Arculus, R., and Umino, S., Evolution of chalcophile elements in the magmas of the Bonin islands, Chem. Geol., 2018. https://doi.org/10.1016/j.chemgeo.2018.07.011

  30. 30

    Yi, W., Halliday, A.N., Alt, J.C., et al., Cadmium, indium, tin, tellurium, and sulfur in oceanic basalts: implications for chalcophile element fractionation in the earth, J. Geophys. Res., 2000, vol. 105, no. B8, pp. 18.927–18.948.

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ACKNOWLEDGMENTS

The authors thank M.V. Portnyagin, K. Hernle, and R. Werner for close cooperation during Cruises 201 and 249 of the R/V Sonne. The authors thank A.V. Girnis and E.V. Sharkov for constructive criticism and valuable recommendations that allowed the authors to improve the manuscript.

Funding

Cruises 201 and 249 of the R/V Sonne were carried out under the KALMAR (in 2009) and BERING (in 2016) Projects, with the financial support from the Ministry of Education and Science of Germany. This study was supported by the Russian Foundation for Basic Research, project no. 18-05-00001a, and government-financed research project 0137-2018-0004 “Problems of the Origin and Evolution of the Oceanic and Continental Lithosphere”.

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Correspondence to S. A. Silantyev.

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Translated by E. Kurdyukov

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Silantyev, S.A., Kubrakova, I.V. & Nabiullina, S.N. Mafic–Ultramafic Complexes of the Stalemate Ridge, NW Pacific, and the Shirshov Rise, Bering Sea: Geochemical Similarities and Differences. Petrology 29, 1–13 (2021). https://doi.org/10.1134/S0869591121010057

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Keywords:

  • PGE geochemistry
  • mantle magma sources
  • backarc spreading centers
  • subduction
  • Stalemate Ridge
  • Shirshov Rise