Abstract
This study investigates the relationship between olivine fabric transitions and seismic anisotropy in mantle shear zones, focusing on the Yugu peridotite body in the Korean Peninsula. Olivine, a key mineral in the upper mantle, influences seismic anisotropy through deformation fabrics. The Yugu peridotite body provides insights into these processes within mantle shear zones. Based on microstructures and olivine fabric transitions, this study categorizes peridotites into three groups (PM: proto-mylonite, M: mylonite, and UM: ultra-mylonite) and explores their seismic properties. The findings highlight a direct correlation between olivine fabric strength and seismic anisotropy. Group PM peridotites exhibited higher seismic anisotropy compared to those in Group M and UM peridotites. This study emphasizes that variations in seismic anisotropy within mantle shear zones are primarily driven by the strength of olivine fabric, with additional influences from fabric type and rock composition. The calculated anisotropic layer thickness supports the observation that seismic anisotropy is significantly larger away from the UM peridotites. These insights contribute to understanding of the complex interplay among olivine fabric, seismic anisotropy, and geological processes within mantle shear zones. The implications of this study extend to the improved interpretation of seismic data related to shear localization during peridotite exhumation.
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References
Abramson, E.H., Brown, J.M., Slutsky, L.J., and Zaug, J., 1997, The elastic constants of San Carlos olivine to 17 GPa. Journal of Geophysical Research, 102, 12253–12263. https://doi.org/10.1029/97JB00682
Arai, S., Tamura, A., Ishimaru, S., Kadoshima, K., Lee, Y.I., and Hisada, K., 2008, Petrology of the Yugu peridotites in the Gyeonggi Massif, South Korea: implications for its origin and hydration process. Island Arc, 17, 485–501. https://doi.org/10.1111/j.1440-1738.2008.00633.x
Bernard, R.E., Schulte-Pelkum, V, and Behr, W.M., 2021, The competing effects of olivine and orthopyroxene CPO on seismic anisotropy. Tectonophysics, 814, 228954. https://doi.org/10.1016/j.tecto.2021.228954
Bunge, H., 1982, Texture Analysis in Materials Science: Mathematical Models. Butteworths, London, UK, 593 p.
Cao, Y. and Jung, H., 2016, Seismic properties of subducting oceanic crust: constraints from natural lawsonite-bearing blueschist and eclogite in Sivrihisar Massif, Turkey. Physics of the Earth and Planetary Interiors, 250, 12–30. https://doi.org/10.1016/j.pepi.2015.10.003
Cao, Y., Jung, H., and Song, S., 2018, Seismic anisotropies of the Songshugou peridotites (Qinling orogen, central China) and their seismic implications. Tectonophysics, 722, 432–446. https://doi.org/10.1016/j.tecto.2017.11.017
Cho, M., Cheong, W., Ernst, W.G., Yi, K., and Kim, J., 2013, SHRIMP U-Pb ages of detrital zircons in metasedimentary rocks of the central Ogcheon fold-thrust belt, Korea: evidence for tectonic assembly of Paleozoic sedimentary protoliths. Journal of Asian Earth Sciences, 63, 234–249. https://doi.org/10.1016/j.jseaes.2012.08.020
Cho, M. and Kim, H., 2005, Petrogenesis of the Yugu spinel harzburgite in western Gyeonggi massif, South Korea. 7th International Eclogite Conference, Seggau, Austria, Jul. 3–9, p. 26.
Drury, M.R., Vissers, R.L.M., Van der Wal, D., and Hoogerduijn Strating, E.H., 1991, Shear localisation in upper mantle peridotites. Pure and Applied Geophysics, 137, 439–460. https://doi.org/10.1007/BF00879044
Gifkins, R.C., 1970, Optical Microscopy of Metals. Elsevier, New York, USA, 208 p.
Handy, M.R., 1989, Deformation regimes and the rheological evolution of fault zones in the lithosphere: the effects of pressure, temperature, grainsize and time. Tectonophysics, 163, 119–152. https://doi.org/10.1016/0040-1951(89)90122-4
Hess, H.H., 1964, Seismic anisotropy of the uppermost mantle under oceans. Nature, 203, 629–631. https://doi.org/10.1038/203629a0
Jung, H., 2017, Crystal preferred orientations of olivine, orthopyroxene, serpentine, chlorite, and amphibole, and implications for seismic anisotropy in subduction zones: a review. Geosciences Journal, 21, 985–1011. https://doi.org/10.1007/s12303-017-0045-1
Jung, H. and Karato, S., 2001, Water-induced fabric transitions in olivine. Science, 293, 1460–1463. https://doi.org/10.1126/science.1062235
Jung, H., Katayama, I., Jiang, Z., Hiraga, I., and Karato, S., 2006, Effect of water and stress on the lattice-preferred orientation of olivine. Tectonophysics, 421, 1–22. https://doi.org/10.1016/j.tecto.2006.02.011
Jung, S., Jung, H., and Austrheim, H., 2014, Characterization of olivine fabrics and mylonite in the presence of fluid and implications for seismic anisotropy and shear localization. Earth, Planets and Space, 66, 1–21. https://doi.org/10.1186/1880-5981-66-46
Kang, H. and Jung, H., 2019, Lattice-preferred orientation of amphibole, chlorite, and olivine found in hydrated mantle peridotites from Bjørkedalen, southwestern Norway, and implications for seismic anisotropy. Tectonophysics, 750, 137–152. https://doi.org/10.1016/j.tecto.2018.11.011
Karato, S., Jung, H., Katayama, I., and Skemer, P., 2008, Geodynamic significance of seismic anisotropy of the upper mantle: New insights from laboratory studies. Annual Review of Earth and Planetary Sciences, 36, 59–95. https://doi.org/10.1146/annurev.earth.36.031207.124120
Katayama, I., Jung, H., and Karato, S.I., 2004, New type of olivine fabric from deformation experiments at modest water content and low stress. Geology, 32, 1045–1048. https://doi.org/10.1130/g20805.1
Katayama, I. and Karato, S., 2006, Effect of temperature on the B- to C-type olivine fabric transition and implication for flow pattern in subduction zones. Physics of the Earth and Planetary Interiors, 157, 33–45. https://doi.org/10.1016/j.pepi.2006.03.005
Kim, D. and Jung, H., 2015, Deformation microstructures of olivine and chlorite in chlorite peridotites from Almklovdalen in the Western Gneiss Region, southwest Norway, and implications for seismic anisotropy. International Geology Review, 57, 650–668. https://doi.org/10.1080/00206814.2014.936054
Kim, H., Cho, M., and Kim, J., 2003, Evidence for mantle deformation from the Yugu Peridotite: a preliminary study. Annual Meeting of the Geological Society of Korea (Abstract), Andong, Korea, Oct. 24–25, p. 23. (in Korean)
Kim, S.W., Oh, C.W., Williams, I.S., Rubatto, D., Ryu, I.C., Rajesh, V.J., Kim, C.B., Guo, J.H., and Zhai, M.G., 2006, Phanerozoic high-pressure eclogite and intermediate-pressure granulite facies metamorphism in the Gyeonggi Massif, South Korea: implications for the eastward extension of the Dabie-Sulu continental collision zone. Lithos, 92, 357–377. https://doi.org/10.1016/j.lithos.2006.03.050
Lee, J. and Jung, H., 2023, Lattice-preferred orientation (LPO) of olivine and amphibole in amphibole peridotites and neighboring horn-blendites from Gapyeong, South Korea and implications for seismic anisotropy. Journal of Geodynamics, 157, 101977. https://doi.org/10.1016/j.jog.2023.101977
Lee, S.R., Cho, M., Hwang, J.H., Lee, B.-J., Kim, Y.-B., and Kim, J.C., 2003, Crustal evolution of the Gyeonggi massif, South Korea: Nd isotopic evidence and implications for continental growths of East Asia. Precambrian Research, 121, 25–34. https://doi.org/10.1016/S0301-9268(02)00196-1
Linckens, J., Herwegh, M., Muntener, O., and Mercolli, I., 2011, Evolution of a polymineralic mantle shear zone and the role of second phases in the localization of deformation. Journal of Geophysical Research-Solid Earth, 116, B06210. https://doi.org/10.1029/2010jb008119
Long, M.D. and Wirth, E.A., 2013, Mantle flow in subduction systems: the mantle wedge flow field and implications for wedge processes. Journal of Geophysical Research: Solid Earth, 118, 583–606. https://doi.org/10.1002/jgrb.50063
Mainprice, D., 1990, A FORTRAN program to calculate seismic anisotropy from the lattice preferred orientation of minerals. Computers and Geosciences, 16, 385–393. https://doi.org/10.1016/0098-3004(90)90072-2
Mainprice, D., 2007, Seismic anisotropy of the deep earth from a mineral and rock physics perspective. In: Schubert, G. (ed.), Treatise on Geophysics, Volume 2: Mineral Physics. Elsevier, Amsterdam, The Netherlands, p. 437–491. https://doi.org/10.1016/B978-044452748-6.00045-6
Montagner, J.-P. and Guillot, L., 2002, Seismic anisotropy and global geodynamics. Reviews in Mineralogy and Geochemistry, 51, 353–385. https://doi.org/10.2138/gsrmg.51.1.353
Nicolas, A. and Christensen, N.I., 1987, Formation of anisotropy in upper mantle peridotites - a review. In: Fuchs, K. and Froidevaux, C. (eds.), Composition, Structure and Dynamics of the Lithosphere-Asthenosphere System. Geodynamics Series, American Geophysical Union, 16, p. 111–123. https://doi.org/10.1029/GD016p0111
Park, M. and Jung, H., 2017, Microstructural evolution of the Yugu peridotites in the Gyeonggi Massif, Korea: implications for olivine fabric transition in mantle shear zones. Tectonophysics, 709, 55–68. https://doi.org/10.1016/j.tecto.2017.04.017
Pera, E., Mainprice, D., and Burlini, L., 2003, Anisotropic seismic properties of the upper mantle beneath the Torre Alfina area (northern Apennines, central Italy). Tectonophysics, 370, 11–30. https://doi.org/10.1016/S0040-1951(03)00175-6
Precigout, J., Gueydan, F., Gapais, D., Garrido, C.J., and Essaifi, A., 2007, Strain localisation in the subcontinental mantle — a ductile alternative to the brittle mantle. Tectonophysics, 445, 318–336. https://doi.org/10.1016/j.tecto.2007.09.002
Précigout, J. and Almqvist, B.S.G., 2014, The Ronda peridotite (Spain): a natural template for seismic anisotropy in subduction wedges. Geophysical Research Letters, 41, 8752–8758. https://doi.org/10.1002/2014GL062547
Savage, M.K., 1999, Seismic anisotropy and mantle deformation: what have we learned from shear wave splitting? Reviews of Geophysics, 37, 65–106. https://doi.org/10.1029/98RG02075
Skemer, P., Katayama, I., Jiang, Z., and Karato, S.-i., 2005, The misorientation index: development of a new method for calculating the strength of lattice-preferred orientation. Tectonophysics, 411, 157–167. https://doi.org/10.1016/j.tecto.2007.05.002
Skemer, P., Warren, J.M., Kelemen, P.B., and hirth, G., 2010, Microstructural and rheological evolution of a mantle shear zone. Journal of Petrology, 51, 43–53. https://doi.org/10.1093/petrology/egp057
Woo, Y.K. and Cho, Y.H., 2002, Ultramafic rocks of Yoogoo talc ore deposits area, Choongnam, Korea. Report of Science Education, 33, 29–42. (in Korean with English abstract)
Acknowledgments
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIT) (No. 2019R1C1C1004402 and No. 2022R1C1C1005243).
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Park, M. Seismic anisotropies of the Yugu peridotites (Gyeonggi Massif, South Korea) and their seismic implications in mantle shear zones. Geosci J (2024). https://doi.org/10.1007/s12303-024-0011-7
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DOI: https://doi.org/10.1007/s12303-024-0011-7