1_README.TXT

Chromite_Olivine_Pairs

This directory contains analyses of chromite grains and 
their olivine hosts made in G.K. Czamanske and Lewis Calk 
in 1996 on the USGS JEOL microprobe in Menlo Park, 
California.  Calculated analyses for the primary standards 
employed are included in the datasets.  Due to 
circumstances beyond our control, an evaluation of the 
significance of these data was never carried out.  

Analyses of chromite-olivine pairs were made for each of 
the samples of the ore-bearing intrusions in which chromite 
was recognized.  Standard setups as follows ÐÐ for 
chromite: Mg and Al, synthetic MgAl2O4; Si, Cpx-1; Fe, Mn, 
Ti, Ni, and V, synthetic oxides; Cr, Tiebaghi chromite 
(Cr2O3, 60.5 wt%).  For olivine: Si and Mg, San Carlos 
olivine (SiO2, 40.81 and MgO, 49.42 wt%); Fe, synthetic 
fayalite; Ca, Cpx-1; Mn and Ni, synthetic oxides. No 
correction of the V concentrations has been made for the 
presence of Ti.  This correction has been found to be; V 
corrected = V measured Ð (0.00484 x wt% TiO2 measured).

Photomicrographic documentation and back-scattered electron 
images of all samples are available to anyone who elects to 
utilize these data.  The full cooperation of Dr. Czamanske 
will be offered to such an individual.  Email:  
czamrandg@earthlink.net