Potassium content was analyzed by flame photometry, using a lithium metaborate fusion technique in which the lithium seerves as an internal standard. Argon was extracted and analyzed by standard methods of isotope dilution and mass spectrometry.
Summary
Potassium content was analyzed by flame photometry, using a lithium metaborate fusion technique in which the lithium seerves as an internal standard. Argon was extracted and analyzed by standard methods of isotope dilution and mass spectrometry.
The coordinates are represented in North American Datum of 1927 (NAD27). Location was derived from the following method(s): Location provided in Wilson, F.H., et al (1994) DNAG, v. G1, plate 8