@misc{oai:niigata-u.repo.nii.ac.jp:00005278, author = {Hayashi, Hiroki}, month = {Mar}, note = {Crystallographical and micro-textural information of accessory minerals have not been applied widely to petrology although they occur commonly in various rocks. In this study the two accessory minerals, thorite and zircon from Cape Ashizuri Ring Complex, Kochi, SW Japan were mineralogically described mainly by transmission electron microscopy (TEM) and scanning electron microscopy (SEM). In thorite mineralogy, thermal behavior of the metamict state in nano-scale was investigated experimentally and the results suggested a possibility of application to a kind of geochronology. In zircon mineralogy, unusual internal textures of zircon were newly found by cathodoluminescence (CL) method and new perspective to magmatic process are suggested. These crystallographical/textural characteristics were very important for application of these accessory minerals in geochronology and petrology., 新潟大学大学院自然科学研究科, 平成23年3月23日, 新大院博(理)甲第330号, 新大院博(理)甲第330号}, title = {Electron microscopic studies on accessory minerals from Cape Ashizuri Ring Complex, Kochi, SW Japan : With special reference to unusual internal textures of zircon and the trace element chemistry}, year = {2011} }