ISOTOPIC COMPOSITION OF THE COMMON LEAD OF JAPAN

Journal Article · Sat Nov 01 00:00:00 EST 1958 · Geochim. et Cosmochim. Acta

DOI:https://doi.org/10.1016/0016-7037(58)90002-4· OSTI ID:4281016

Sakai, H; Sato, K

Lead tetramethyl was synthesized from lead iodide isolated from 14 galenas, 2 anglesites, and 6 pyromorphites of Japan. The mass spectrometric analysis was carried out for the peaks of lead and lead hydride ions. The isotopic compositions of leads from these minerais lie wiyhn a narrow range. The average values for gnlanas are 18.51 O 0.05 for Pb/sup 238//Pb/sup 204/ 15.60 plus or minus 0.05 for Pb/sup 207//Pb/sup 204/8.76 plus or minus 0.15 forPb/ sup 208//Pb/sup 204/ For lead of secondary minerals they are 18.52 plus or minus 0.05, 15.62 plus or minus 0.05, and 38.78 plus or minus 0.15, respectively. No detectabla difference was observed between the isotopic compositions of primary and secondary lead ores. The ratios, U/sub 238/Pb/sup 204, and Th/sup 232/ U/sup 238/, in the source magma are estimated from the lead abundances. They are

• Research Organization: Univ. of Tokyo
• NSA Number: NSA-13-004484
• OSTI ID: 4281016
• Journal Information: Geochim. et Cosmochim. Acta, Vol. Vol: 15; Other Information: Orig. Receipt Date: 31-DEC-59
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

CHEMISTRY
ANGLESITE
GALENA
IONS
JAPAN
LEAD
LEAD 204
LEAD 206
LEAD 207
LEAD 208
LEAD COMPOUNDS
LEAD HYDRIDES
LEAD IODIDES
LEAD ISOTOPES
LEAD PHOSPHATES
LEAD SULFATES
LEAD SULFIDES
MASS SPECTROMETERS
METHYL RADICALS
MINERALS
ORES
ORGANOMETALLICS
PREPARATION
PYROMORPHITE
QUANTITY RATIO
THORIUM 232
TRANSIENTS
URANIUM 238