Fig. 1. Geological map of granite area (Park et al., 1968).
Fig. 2. Geological map of gneiss area (Kim et al., 1970, Chang et al., 1978).
Fig. 3. Pictures of (a) granite core sample and (b) gneiss core sample.
Fig. 4. Separation by dip angle of joint (yellow line : 60-90°, azure line : 30-60°, red line : 0-30°, blue line : sealed fracture).
Fig. 5. Picture of calcite crystal in open fracture (in red circle).
Fig. 6. SEM picture of pyrite and calcite crystal in open fracture.
Fig. 7. Distribution of sealed and open fractures by depth for granite sample.
Fig. 8. Distribution of sealed and open fractures by depth for gneiss sample.
Fig. 9. Cumulation distribution of sealed and open fractured by depth for granite sample.
Fig. 10. Cumulation distribution of sealed and open fractured by depth for gneiss sample.
Fig. 11. Distribution of dip angle of open fracture by depth for granite sample.
Fig. 12. Distribution of dip angle of open fracture by depth for gneiss sample.
References
- Chang, K.-H., Kho, I.-S., Park, H.-I., Chi, J.-M. and Kim, H.-M. (1978) 1:50,000 Explanatory Text of The Geological Map of Cheonji Sheet, Korea Research Institute of Geoscience and Mineral Resources, 20p. (in Korean with English abstract)
- Jo, H.-J., Cheong, A.C.S., Yi, K. and Li, X.-H. (2018) Juxtaposition of Allochthonous Terranes in the Central Korean Peninsula: Evidence from zircon U-Pb ages and O-Hf isotopes in Jurassic granitoids. Chem. Geol., v.484, p.136-147. https://doi.org/10.1016/j.chemgeo.2017.10.006
- Kim, G.-Y., Go, K.-K., Bae, D.-S. and Kim, C.-S. (2004) Mineralogical Characteristics of Fracture-Filling Minerals from the Deep Borehole in the Yuseong Area for the Radioactive Waste Disposal Project. J. Miner. Soc. Korea, v.17, No.1, p.99-114. (in Korean with English abstract)
- Kim, J., Yi, K., Jeong, Y.-J. and Cheong, C.-S. (2011). Geochronological and Geochemical Constraints on the Petrogenesis of Mesozoic high-K Granitoids in the Central Korean Peninsula. Gondwana Res., v.20, No.2, p.608-620. https://doi.org/10.1016/j.gr.2010.12.005
- Kim, N.-J. and Lee, H.-K. (1970) 1:50,000 Explanatory Text of The Geological Map of Jungpyeong Dong Sheet, Korea Research Institute of Geoscience and Mineral Resources, 19p. (in Korean with English abstract)
- Lee, S.-Y., Baik, M.-H., Cho., W.-J. and Hahn, P.-S. (2006) Rock Weathering and Geochemical Characteristics in the KURT. J. Kor. Rad. Waste Soc., v.4, No.4, p.321-328. (in Korean with English abstract)
- Martel, S. (2017) Progress in understanding sheeting joints over the past two centuries. J. Struct. Geol., v.94, 68-86. https://doi.org/10.1016/j.jsg.2016.11.003
- McEwen, T., Aro, S., Kosunen, P.,Mattila, J., Pere, T., Kapyaho, A. and Hella, P. (2013) Rock Suitability Classification RSC 2012. Posiva Report 2012-24.
- NUMO (Nuclear Waste Management Organization of Japan). (2002) Siting Factors for the Selection of Preliminary Investigation Areas, MWMO Report, Tokyo, 22p.
- NUMO (Nuclear Waste Management Organization of Japan). (2004) Evaluating Site Suitability for a HLW Repository, NUMO-TR-04-04, Tokyo, p.2-9.
- Nishimoto, S. and Yoshida, H. (2010) Hydrothermal Alteration of Deep Fractured Granite: Effects of Dissolution and Precipitation. Lithos, v.115, p.153-162. https://doi.org/10.1016/j.lithos.2009.11.015
- Ono, T., Yoshida, H. and Metcalfe, R. (2016) Use of fracture Filling Mineral Assemblages for Characterizing Water rock Interactions during Exhumation of an Accretionary Complex: an Example from the Shimanto Belt, southern Kyushu Japan. J. Struct. Geol., v.87, p.81-94. https://doi.org/10.1016/j.jsg.2016.04.009
- Park, H.-I., Lee, J.-D. and Cheong, J.-G. (1968) 1:50,000 Explanatory Text of The Geological Map of Yuseong Sheet, Korea Research Institute of Geoscience and Mineral Resources, 21p. (in Korean with English abstract)
- Pere, T., Aro, S., Mattila, J., Ahokas, H., Vaittinen, T. and Wikstrom, L. (2012) Layout Determining Features, their Influence Zones and Respect Distances at the Olkiluoto Site. In: Pere, T. (Ed.), Posiva Report POSIVA, p.2012-2021
- Pine, R.J., Coggan, J.S., Flynn, Z.N. and Elmo, D. (2006) The Development of a New Numerical Modelling Approach for Naturally Fractured Rock Masses. Rock Mech. Rock Engng., v.39, No.5, p.395-419. https://doi.org/10.1007/s00603-006-0083-x
- Yoshida, H., Metcalfe, R., Ishibashi, M. and Minami, M. (2013) Long-term Stability of Fracture Systems and Their Behaviour as Flow Paths in Uplifting Granitic Rock from the Japanese Orogenic Field. Geofluids, v.13, p.45-55. https://doi.org/10.1111/gfl.12008
- Yoshida, H., Nagatomo, A., Oshima, A. and Metcalfe, R. (2014) Geological Characterisation of the Active Atera Fault in Central Japan: Implications for Defining Fault Exclusion Criteria in Crystalline Rocks around Radioactive Waste Repositories. Eng. Geol., v.177, p.93-103. https://doi.org/10.1016/j.enggeo.2014.05.008