1969
DOI: 10.1016/0016-7037(69)90066-0
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Chemical composition and bulk density of moldavites

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Cited by 13 publications
(3 citation statements)
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“…Philpotts and Pinson (1966) gave Fe 3+ /Fe tot values between 0.07 and 0.15. Konta and Mráz (1969) reported Fe 3+ /Fe tot values for 13 moldavites to be between 0.01 and 0.82. Fudali et al (1987) critically reviewed these data as well as those for other tektites and measured ferric-ferrous iron ratios from 5 randomly selected splashform Australasian tektites.…”
Section: Ferrous-to-ferric Iron Ratios and Iron Coordinationmentioning
confidence: 95%
“…Philpotts and Pinson (1966) gave Fe 3+ /Fe tot values between 0.07 and 0.15. Konta and Mráz (1969) reported Fe 3+ /Fe tot values for 13 moldavites to be between 0.01 and 0.82. Fudali et al (1987) critically reviewed these data as well as those for other tektites and measured ferric-ferrous iron ratios from 5 randomly selected splashform Australasian tektites.…”
Section: Ferrous-to-ferric Iron Ratios and Iron Coordinationmentioning
confidence: 95%
“…If selective volatilization is operative the trends should approximate those predicted by laboratory vapor fractionation experiments; while, if mixing is the primary cause of the variation there are no restrictions on the trends (other than those imposed by the "close-ended" nature of major element analyses). Vapor fractionation experiments of glasses of tektite composition, under oxidizing conditions, show that Si0 2 and K 20 are the most volatile species, Na 20 is somewhat less volatile, and the other major element oxides are relatively nonvolatile et al (1983) and Cuttitta et al (1967), and moldavite data from Konta and Mraz (1969). (Walter, 1967;Walter and Giutronich, 1967).…”
Section: Selective Volatilization Vs Mixingmentioning
confidence: 97%
“…The number of bubbles is lower in tektites with high temperature of formation (Barnes 1964, 1969; Konta and Mráz 1969; Trnka and Houzar 2002). Bubbles in the tektite types with high temperature of formation are usually more spherical.…”
Section: A Review Of Available Data On Volatile Compound Content and mentioning
confidence: 99%