• Title/Summary/Keyword: 암석학

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Rock Deformation and Formation of LPO of Minerals in the Upper Mantle: Implications for Seismic Anisotropy (맨틀상부에서 암석의 변형 및 광물의 격자선호방향(LPO) 형성과 지진파 비등방성과의 연계성)

  • Jung, Hae-Meong
    • The Journal of the Petrological Society of Korea
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    • v.21 no.2
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    • pp.249-261
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    • 2012

  • Olivine is a dominant mineral in the upper mantle and is elastically very anisotropic. When olivine is deformed under stress at high pressure and high temperature, lattice preferred orientation (LPO) is formed. It is known that the LPO of olivine is affected by water, stress, and pressure. In this paper, I reviewed the papers dealing with the effects of water, stress, and pressure on the LPO of olivine, summarized the papers on the LPOs of olivine in natural mantle rocks, and discussed its implications for seismic anisotropy in the upper mantle. In addition, I also described four types of LPOs of orthopyroxene recently found in natural spinel lherzolite.

  • https://doi.org/10.7854/JPSK.2012.21.2.249 인용 PDF KSCI