A Comparison of Lead Isotope Analysis Techniques

Farquhar, R. M.; Palmer, George; Aitken, K L

doi:10.1038/172860a0

Cited by 13 publications

(3 citation statements)

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“…Other Pb compounds have been used successfully. Farquhar et al (1953) compared results obtained from solid (PbI, and PbC1,) and gas (Pb tetramethyl) samples and report satisfactory agreement. by means of each specific parent-daughter ratio (206Pb/23*U, 207Pb/235U, zosPb/232U 1 7 Abbreviations :$9, % :…”

Section: Analytical Proceduresmentioning

confidence: 80%

Radioactive Methods for Determining Geological Age

Ahrens

1956

Rep. Prog. Phys.

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Section: Analytical Proceduresmentioning

confidence: 80%

Radioactive Methods for Determining Geological Age

Ahrens

1956

Rep. Prog. Phys.

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“…Collins and co-workers (110,111,112,114,115,188) have utilized mainly Pb207 jPb20 6 ratios without chem�cal analyses for uranium and lead, and they claim that this age index is more reliable than the Pb206jU238 and Pb207 jU235 indices since, as was first pointed out by Nier (428) this ratio is least affected by loss of some uranium or lead during the lifetime of the mineral. From numerous measurements on Canadian uraninites and pitchblendes, they conclude that uraninites generally correctly date their host rocks but pitchblendes may be of any age up to that of the rocks.…”

Section: Lead Methodsmentioning

confidence: 99%

Radioactivity in Geology and Cosmology

Kohman¹,

Saito²

1954

Annu. Rev. Nucl. Sci.

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The study of natural radioactivity has experienced a substantial revival in recent years. One reason is the general increase in importance and popu larity of all aspects of nuclear science, with this branch partaking of its share. The practical importance as raw materials for nuclear energy of uranium and thorium, which are the parents of most of the known natural radionuclides, has stimulated a study of the properties and occurrences of the latter. It has also been realized that natural radioactivity is a phenome non of considerably greater variety and more general incidence than had been believed previously (339,340,379). .The well established and newly discovered geological ramifications of the occurrence of radioactivity in nature have induced considerable numbers of earth scientists to employ nuclear tools in their studies. The natural occur I The preparation of this paper has been assisted by the United States Atomic Energy Commission through its support of nuclear chemistry research at Carnegie Institute of Technology. ! The following abbreviations are used in this chapter: dis. (disintegration); m.y. (million years) ; B.P. (before present) .

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“…Although possible interference from ions formed by rearrangement during the ionization-dissociation process (e. g., hydride ions) preclude their use for discovering rare isotopes, satisfactory agreement has been obtained in the comparison of routine analyses of lead, using the halides and the tetramethyl compound [4], and of mercury, using the element and the dimethyl compound [5].…”

Section: Introductionmentioning

confidence: 99%

Mass spectra of some lead alkyls

Quinn¹,

Dibeler²,

Mohler³

1956

J. RES. NATL. BUR. STAN.

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Monoisotopic mass spectra are given for the compounds: tetrameth yllead, t rim ethylethyllead, dimethyldiethyllead, methyltriethyllead, tetraethyllead, tetrapropylJ ead, trimethyl-n-butyllead, trimethyl-sec-butyllead, trimethyl-tert-butyllead, and tetra-isobutyllead. R elations between relative probabilities of ion formation and molecular structure are observed for several ion configurations and are discussed briefly.

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A Comparison of Lead Isotope Analysis Techniques

Cited by 13 publications

References 0 publications

Radioactive Methods for Determining Geological Age

Radioactive Methods for Determining Geological Age

Radioactivity in Geology and Cosmology

Mass spectra of some lead alkyls

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