About YOSHIDA HIDEKAZU
About 名古屋大 博物館
About ASAHARA YOSHIHIRO
About 名古屋大 大学院環境学研究科
About Isotope News (Web)
About nodule
About spherical shape
About isotopic ratio
About geologic time
About sedimentary rock
About sea bed
About calcite
About calcium carbonate
About Calcium
About fossil
About stratigraphy (sequence of layers)
About strontium isotope
About chronostratigraphy
About strontium isotopic ratio
About strontium isotopic ratio
About Other isotopic dating
About 球状
About コンクリーション
About Sr同位体比
About 地質年代