NGT42-II-22
1962
Comments on the two-feldspar geothermometer
42-II
340-348

Forelesninger holdt ved Advanced Study Institute of Feldspar - Oslo 1962
Lectures held at Advanced Study Institute of Feldspar - Oslo 1962

Barth (1961) has presented a plot showing the distribution of sodium between an alkali feldspar and a 2-molar alkali chloride solution based upon the data of Orville (1959). I have plotted more extensive data from Orville (1963) in the same manner for the sodium distribution at 500°, 600° and 700 oc in Figure 1 A, B and C. The endpoints of distribution tie lines that appear to be identical with those plotted by Barth have been circled in Figure 1 C.

0029-196x
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