The early Earth sample collection

https://da.dl.itc.u-tokyo.ac.jp/portal/collection/early_earth

The oldest rock samples on the Earth and their thin section photographic data

Original Owner: Prof. Tsuyoshi Komiya Department of General Systems Studies Graduate School of Arts and Sciences The University of Tokyo

Data Provider: Prof. Tsuyoshi Komiya Department of General Systems Studies Graduate School of Arts and Sciences The University of Tokyo