Permalink : http://hdl.handle.net/2115/36667

Trace elements Rb, Sr, Zr, Y, Cu, Ni, Zn, Co, and Pb are recorded from basaltic rocks of the Kitami-Monbetsu district of east Hokkaido and the Takikawa-Fukagawa Basin and Kabato Mountains of central-west Hokkaido. Those of the former district, although petrologically similar to some from the latter district, show a different distribution of trace elements. In particular Zr and Zn are higher, and Rb and Sr are lower in the eastern basalts. Other slight differences are suggested. The reason may be an initial abundance variation.