On the Natural Radio-active Anomaly on the Kuroko Deposit in the Hokuroku District

Abstract

Recently, a number of extensive Kuroko deposits have been discovered in the Hokuroku district. Most of them are covered deposits which lie within a certain horizon.
On exploration for a new deposit of this type which may be far from the known ore body, we may use the natural radio-active anomaly as one of prospecting methods.
According to the recent investigation in the Hokuroku district, it has been confirmed that the natural radio-active anomaly is closely related with the Kuroko deposit. Hence, it can be used as one of reliable methods for locating the ore horizon and for estimating the extent of mineralization.