On chemical characteristic of ferruginous chert in kuroko field, northern Akita Prefecture

Abstract

The ferruginous chert rocks which occur in the kuroko field of northern Akita Prefecture as the hanging wall of kuroko deposits were chemically analized. And these chemical data were analized with the principal component analysis that is a kind of multivariate analyses. Consequently, the ferruginous chert which occurs in much nearer places of kuroko deposits was chemically distinguished from those of other places.