Th/U ratios of basement rocks and ore lead isotopes from the Korean Peninsula: a reconnaissance
スポンサーリンク
概要
- 論文の詳細を見る
Selected samples of Precambrian basement gneisses and Mesozoic granitic rocks from the Korean Peninsula are examined by non-destructive gamma-ray spectrometry. The Th/U ratios estimated for the gneisses from the peninsular interior appear to be significantly higher than those for the gneisses from the exterior localities, whereas such a difference is inconspicuous in the granitic rocks. This observation is consistent with the spatial distribution of Th/U values for source materials of Mesozoic ore leads estimated on the basis of a simple two-stage model comprising the second stage evolution in the Precambrian basement.
- 資源地質学会の論文
資源地質学会 | 論文
- 資源情報 2008年度秋季講習会 西南北海道の中新世熱水活動と金属鉱化作用
- 飛騨帯の石灰岩類 -地質特性・構成鉱物・岩石組織とドロマイトの産状-
- 飛騨帯神岡鉱床周辺の変閃緑岩・変斑れい岩類
- 神岡鉱床周辺のいわゆる伊西ミグマタイトとスカルン鉱(杢地鉱)中の単斜輝石の組成変化
- 北部北上山地南東部, 大谷山鉱山北方地域に分布する層状マンガン鉱床の層位学的研究