Recent crystal chemical research on rock‐forming silicate minerals has focused on the
accurate refinement of room temperature and high‐temperature crystal structures. The data …

The phase relationships of four analyzed granites, granodiorites, and tonalites from the
Central Sierra Nevada Batholith, California, have been determined in the presence of 15 wt …

A novel blue-emitting phosphor, Na0. 34Ca0. 66Al1. 66Si2. 34O8: Eu2+ (NCASO: Eu2+),
was prepared by a wet chemical synthesis method based on the hydrolysis of …

This is the first extended publication on the geology and setting of the Kiglapait intrusion; it is
based in part on a Ph. D. thesis deposited at McGill University. This is largely a report on …

The techniques of electron probe microanalysis and x-ray diffractometry have been utilized
in a study of the sillimanite-potassium feldspar isograd in western Maine. The isograd …

Tectonic inclusions within the New Idria serpentine body contain jadeite in two distinct
assemblages:(1) Lenslike inclusions containing a monomineralic green jadeite core …

Electron microprobe analysis and X-ray diffraction techniques were used to determine the
chemical compositions and structural states of feldspar in recrystallized (Type 6) chondritic …

Twenty-three samples of slightly metamorphosed early Precambrian graywackes from the
southern Wind River Mountains in Wyoming have been analyzed for Si, Al, Ti, Fe, Mg, K, Ca …

Abstract __________________________________… Introduction
______________________________ 1 Stratigraphy-_______________________ 2 Sinter …

After the plant studies were made, 1,268 holes drilled for the US Geological Survey in the
area of plant mapping verified the presence of ore. The selenium indicator plants grow on 81 …