@article{oai:nipr.repo.nii.ac.jp:00002792, author = {/ and FRASER, Geoffrey L. and MCDOUGALL, Ian}, journal = {Proceedings of the NIPR Symposium on Antarctic Geosciences}, month = {Sep}, note = {P(論文), K/Ar and ^<40>Ar/^<39>Ar mineral ages are presented for a variety of rock types from several localities across the high-grade Lutzow-Holm Complex of East Antarctica. Results indicate setting of the K/Ar isotopic system took place between ∿500-450Ma throughout this terrain. These ages represent the time of cooling and stabilization of the region following Pan African orogenic activity as recorded by U/Pb zircon ages. Despite the broad consistency of ages, the results also indicate a significant variation in timing and rate of cooling between localities within the terrain, with average cooling rates being greater in rocks which experienced higher peak metamorphic conditions.}, pages = {137--159}, title = {K/Ar AND ^<40>Ar/^<39>Ar MINERAL AGES ACROSS THE LUTZOW-HOLM COMPLEX, EAST ANTARCTICA}, volume = {8}, year = {1995} }