지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
이용수0
2013
CONTENTSCHAPTER 1: Introduction . 1CHAPTER 2: Petro-fabrics and seismic properties of blueschist and eclogite in the North Qilian suture zone, NW China . 7Abstract . 72.1. Introduction . 82.2. Geological setting . 122.3. Petrography . 172.3.1. Blueschist . 172.3.2. Eclogite . 202.4. Mineral chemical compositions and P-T estimations . 222.5. Lattice preferred orientations . 252.5.1. LPO of glaucophane . 272.5.2. LPO of epidote . 302.5.3. LPO of omphacite . 322.5.4. LPO of garnet . 322.5.5. LPO of phengite and quartz . 322.6. Rock seismic properties . 352.6.1. Glaucophane polycrystals . 372.6.2. Epidote polycrystals . 372.6.3. Omphacite polycrystals . 392.6.4. Garnet, phengite and quartz polycrystals . 422.6.5. Whole-rock . 442.7. Discussions . 492.7.1. Low velocity upper layer in subducting slab 492.7.2. Polarization anisotropy in subduction zone . 532.7.3. Detectability of eclogite in the subduction channel . 572.8. Conclusions . 62CHAPTER 3: Microstructures and petro-fabrics of lawsonite blueschist in the North Qilian suture zone, NW China . 64Abstract . 643.1. Introduction . 653.2. Geological setting . 683.3. Description of samples . 723.3.1. Massive lawsonite blueschist . 723.3.2. Foliated lawsonite blueschist . 743.4. Lattice preferred orientations . 763.4.1. LPO of glaucophane . 783.4.2. LPO of lawsonite . 803.5. Vorticity analysis . 833.6. Rock seismic properties . 863.6.1. Single crystal . 883.6.2. Glaucophane polycrystals . 893.6.3. Lawsonite polycrystals . 913.6.4. Whole rocks . 953.7. Discussions . 963.7.1. Deformation mechanisms of glaucophane and lawsonite . 963.7.2. LPO variations of glaucophane and lawsonite . 1023.7.3. Seismic anisotropy of subducting oceanic crust . 1043.8. Conclusions . 108CHAPTER 4: Plastic deformation and seismic implications in the fore-arc mantle: Constrains from Yushigou harzburgites in North Qilian suture zone, NW China . 110Abstract . 1104.1. Introduction . 1114.2. Geological setting . 1144.3. Microstructures and petrology . 1174.4. Determination of the dislocation slip systems . 1214.4.1. Crystal preferred orientations . 1214.4.2. Subgrain boundaries and rotation axes . 1314.5. Water contents in olivine and orthopyroxene . 1384.5.1. Analytical procedure . 1384.5.2. IR spectra and water content . 1404.6. Seismic properties . 1444.6.1. Analytical method . 1444.6.2. Seismic anisotropies and velocities . 1454.7. Discussions . 1484.7.1. Relations between petrological and deformational processes . 1484.7.2. Distributions of olivine fabrics in subduction zone . 1604.7.3. Seismic implications in the fore-arc mantle . 1654.8. Conclusions . 172CHAPTER 5: Partial melting, melt-rock interaction and plastic deformation in a fore-arc mantle: Constraints from Songshugou peridotites in Qinling orogenic belt, central China . 175Abstract . 1755.1. Introduction . 1765.2. Geological setting . 1785.3. Lithology and petrography . 1805.3.1. Fine-grained and porphyroclastic dunite . 1805.3.2. Coarse-grained dunite . 1825.3.3. Harzburgite . 1825.3.4. Olivine clinopyroxenite . 1845.3.5. Mineral inclusions . 1845.4. Mineral compositions and estimates of temperature and stress . 1865.4.1. Mineral compositions . 1865.4.2. Temperature estimates . 1915.4.3. Stress estimates . 1925.5. Whole-rock major and trace element compositions . 1925.5.1. Major elements characteristics . 1925.5.2. Trace element characteristics . 1965.6. Lattice preferred orientations of olivine . 2015.7. Discussions . 2045.7.1. Highly refractory partial melting residue . 2045.7.2. Melt-rock interactions . 2085.7.3. Tectonic setting . 2115.7.4. Tectonic evolutions . 2165.7.5. Olivine fabric transition and tectonic evolution . 2215.8. Conclusions . 229CHAPTER 6: Summary . 232REFERENCES . 236ABSTRACT (IN KOREAN) . 270ACKNOWLEDGEMENTS . 272
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