Recognition of ore deposit genesis is still a controversial challenge for economic geologists. Here, this task was addressed by the virtue of Bayesian data fusion (BDF) implementing available proofs: semi-schematic examples with two (Cu and Pb + Zn) and three (Cu, Pb + Zn and Ag) evidences. The data, in current paper are just concentrations of indicated elements, were collected from Angouran’s ...

T N A R E C E N T A R T I C L E in another library journal1 I made the point that American periodicals dealers have surprisingly and, from the standpoint of good business principle, foolishly avoided telling their clientele anything about themselves. I stated that it is my great hope that the dealers themselves would correct this situation within the near future. Certainly, I should think, the ...

As magmas rise toward the surface, they traverse regions of the mantle and crust with which they are not in equilibrium; to the extent that time and the intimacy of their physical contact permit, the melts and country rocks will interact chemically. We have modeled aspects of these chemical interactions in terms of ion-exchange processes similar to those operating in simple chromatographic colu...

Conditions have fluctuated a good deal in the last 'leaps' but these changes, like waves on the ocean, had little effect on the working up and down of traditional medicine which is the main element of Chinese life itself. Contradictions in a socialist society are fundamentally different from those in the old societies. Traditional medicine, a faithful reflection of Chinese culture, is a first-r...

The Christmas copper mine is in the Banner mining district, Gila County, Arizona. It is 8 miles north of Winkelman and 22 miles south of Globe. The mine was opened in 1905; to the end of 1943 it had produced about 55,340,000 pounds of copper. In 1946 it was operated under lease. The ore is high-lime fluxing ore, required by the smelter at Hayden. The ore produced during 1942 averaged 2.16 perce...